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On Dec 13, 2019, at 20:40, Bill Meara via Groups.Io < n2cqr@...> wrote:
Interesting topic. I guess I'm just more accustomed to having the rig display the TX freq and shift the RX to make it audible.? ?But in uBITX CWU and CWL the display is the RX freq with the TX freq shifted.? So tonight I'm in CWL and I hear SKCC stations at 7.0557.? They are really at their normal spot at 7.0550.? ? I call them.? They hear me because my transmit freq has gone down to theirs.? So it all works but it is just a bit different. Actually I'm a lot more accustomed to setting up SSB rigs -- on all my rigs the display freq is where the carried would have been -- LSB extends down from there, USB up from there.? Easier.? ?Setting up CW offset with a Direct Conversion receiver is also a bit of a challenge:? If you are tuning to the high side of zero beat you need your TX frequency to drop down by 700 Hz or so.? This is how it works in a Heath HW-8.?
I understand it is possible to change the display in the uBITX so that it shows transmit frequency.? But this may involve some painful (for me) wrestling with the Arduino IDE, Memory Manager and the new CEC software.? So I may leave well-enough alone.? Unless someone can tell me how to do this EASILY.?
Here is a good discussion of the problem we've been talking about:?
And here is an ARRL forum discussion that talks about how different manufacturers handle this.? ?
I¡¯ll have to look back at the code to see how the MicroBitx ?works, ? But after dealing with this at last field day, I wrote a document on how my ICOM works.
It may not be quite what you thought!
(and I¡¯m pretty sure that¡¯s how my Heathkit SB 102 always worked )?On the ICOM also, when you transmit, you weren¡¯t transmitting zero- beated with your dial frequency. ? As I explained earlier, you would not want to be. ? It¡¯s all a matter of understanding how your rig works?
I¡¯ll go back and look at the code on the uBitx and see how it works. ? Hi,I have always preferred my dial to show my my TX carrier frequency whether or not it is suppressed. There are fiducial marks to show where to set for receive (USB or LSB). WWV is double sideband, full carrier AM (not SSB or CW) and yes it will be zero beated when you are zeroed with it's carrier. SSB and CW require a tiny amount more effort. If you operate near the (sub)band edge pay closer attention.Transceivers are more often setup for the dial to to show the center of the SSB passband and often considered to 1500 Hz from the (suppressed) carrier.In the end, you have to know how the radio you are using is configured. Either way (tx or rx reading) will work but if you are not aware which way your radio works you could transmit outside your license assignment. Your entire emitted signal is supposed to remain inside those prescribed band edges.Merry Christmas and..73,Bill ?KU8HOn 12/13/19 5:34 PM, Gordon Gibby wrote:When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes@... <mailto:[email protected]>> wrote:
???well, you might be right, but when you zero beat a heathkit to a 100
???kHz marker, and subsequently tune in a CW signal, you will be
???transmitting on a DIFFERENT frequency from what your dial shows. ??????So I don't think you are correct for a heathkit SB-102, which I used
???for many many years....and still have
???On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io
???<n2cqr@... <mailto:[email protected]>> wrote:
???????Usually the freq readout on the display IS the transmit
???????frequency, with the offset taking place in the receiver -- the
???????receiver shifts the 700 Hz or so.? ?But here the transmit
???????frequency shifts.? That is kind of weird.? ?As Vic points out:
???????I just finished my V4 uBitX with CEC 1.10 firmware and the V3
???????Nextion GUI. I think the method of offsetting the transmit
???????frequency is backwards to how CW offset should be done. Although
???????this works, it can have bad consequences. If the other station
???????is transmitting on 14.100 I will not hear him unless I tune the
???????uBitX to 14.099300 if I am particular about hearing a 700Hz tone
???????and I am using CWU, so that means I actually will be
???????transmitting on 14.100 when I send back and he will hear me.
???????Similarly, if I have selected CWL I won¡¯t hear him until I set
???????the receiver to 14.100700 and I will be transmitting back on his
???????frequency. However, we should be indicating the actual transmit
???????frequency, not where I have offset to hear the other station. If
???????I was close to the lower band edge, and I wanted to call CQ on
???????14.000500, I would actually be transmitting 200Hz below the band
???????limit if I have selected CWL mode. Other rigs I have used, even
???????Allard¡¯s sketch for the BitX40, offset the receiver by the
???????amount of the desired tone (offset), either up or down based on
???????if CWU or CWL is selected, so the transmitter always is sending
???????on the dial frequency.
???????On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby
???????<docvacuumtubes@... <mailto:docvacuumtubes@...>> wrote:
???????So, when you do CW, you don't zero beat your RECEIVER to the
???????other station, do you?
???????No.
???????You dial your receiver just the right amount off from the other
???????station's zero beat so that either (a) you are set so that your
???????transmitter will be on the other station's frequency?and you can
???????hear a nice tone from the other station or
???????(b) if you have a very narrow filter, you do (a) as well, but
???????you adjust so that the other station is PEAKED in your passband.
???????Either way.....you are NOT transmitting precisely?where your
???????dial says....because typically you are offset by about 800 Hz.
???????Precisely what you observed.
???????Maybe that makes more sense?
???????My heathkit works the same way.
???????Gordon
???????On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io
???????<n2cqr@... <mailto:[email protected]>> wrote:
???????????I'm trying to get my Version 3 uBITX with CEC version 1.071
???????????to work properly in CW mode.? I have the same problem that
???????????Vic WA4THR had -- I really prefer just to have the display
???????????show the transmit frequency, with the receiver shifting to
???????????produce the desired CW tone.? That is not what happens under
???????????ver 1.071.? ?When the dial indicates 7.0407, I am actually
???????????transmitting on 7.0399.
???????????Is there anyway I can easily correct this without a major
???????????software overhaul?? I am still running uBITX v 3 with a 16x2
???????????display.
???????????Thanks,? Bill N2CQR
-- bark less - wag more
|
Interesting topic. I guess I'm just more accustomed to having the rig display the TX freq and shift the RX to make it audible.? ?But in uBITX CWU and CWL the display is the RX freq with the TX freq shifted.? So tonight I'm in CWL and I hear SKCC stations at 7.0557.? They are really at their normal spot at 7.0550.? ? I call them.? They hear me because my transmit freq has gone down to theirs.? So it all works but it is just a bit different. Actually I'm a lot more accustomed to setting up SSB rigs -- on all my rigs the display freq is where the carried would have been -- LSB extends down from there, USB up from there.? Easier.? ?Setting up CW offset with a Direct Conversion receiver is also a bit of a challenge:? If you are tuning to the high side of zero beat you need your TX frequency to drop down by 700 Hz or so.? This is how it works in a Heath HW-8.?
I understand it is possible to change the display in the uBITX so that it shows transmit frequency.? But this may involve some painful (for me) wrestling with the Arduino IDE, Memory Manager and the new CEC software.? So I may leave well-enough alone.? Unless someone can tell me how to do this EASILY.?
Here is a good discussion of the problem we've been talking about:?
And here is an ARRL forum discussion that talks about how different manufacturers handle this.? ?
On Friday, December 13, 2019, 07:55:04 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:
I¡¯ll have to look back at the code to see how the MicroBitx ?works, ? But after dealing with this at last field day, I wrote a document on how my ICOM works.
It may not be quite what you thought!
(and I¡¯m pretty sure that¡¯s how my Heathkit SB 102 always worked )?On the ICOM also, when you transmit, you weren¡¯t transmitting zero- beated with your dial frequency. ? As I explained earlier, you would not want to be. ? It¡¯s all a matter of understanding how your rig works?
I¡¯ll go back and look at the code on the uBitx and see how it works. ?
On Dec 13, 2019, at 19:43, Bill Cromwell < wrcromwell@...> wrote: Hi,I have always preferred my dial to show my my TX carrier frequency whether or not it is suppressed. There are fiducial marks to show where to set for receive (USB or LSB). WWV is double sideband, full carrier AM (not SSB or CW) and yes it will be zero beated when you are zeroed with it's carrier. SSB and CW require a tiny amount more effort. If you operate near the (sub)band edge pay closer attention.Transceivers are more often setup for the dial to to show the center of the SSB passband and often considered to 1500 Hz from the (suppressed) carrier.In the end, you have to know how the radio you are using is configured. Either way (tx or rx reading) will work but if you are not aware which way your radio works you could transmit outside your license assignment. Your entire emitted signal is supposed to remain inside those prescribed band edges.Merry Christmas and..73,Bill ?KU8HOn 12/13/19 5:34 PM, Gordon Gibby wrote:When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes@... <mailto:[email protected]>> wrote:
???well, you might be right, but when you zero beat a heathkit to a 100
???kHz marker, and subsequently tune in a CW signal, you will be
???transmitting on a DIFFERENT frequency from what your dial shows. ??????So I don't think you are correct for a heathkit SB-102, which I used
???for many many years....and still have
???On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io
???<n2cqr@... <mailto:[email protected]>> wrote:
???????Usually the freq readout on the display IS the transmit
???????frequency, with the offset taking place in the receiver -- the
???????receiver shifts the 700 Hz or so.? ?But here the transmit
???????frequency shifts.? That is kind of weird.? ?As Vic points out:
???????I just finished my V4 uBitX with CEC 1.10 firmware and the V3
???????Nextion GUI. I think the method of offsetting the transmit
???????frequency is backwards to how CW offset should be done. Although
???????this works, it can have bad consequences. If the other station
???????is transmitting on 14.100 I will not hear him unless I tune the
???????uBitX to 14.099300 if I am particular about hearing a 700Hz tone
???????and I am using CWU, so that means I actually will be
???????transmitting on 14.100 when I send back and he will hear me.
???????Similarly, if I have selected CWL I won¡¯t hear him until I set
???????the receiver to 14.100700 and I will be transmitting back on his
???????frequency. However, we should be indicating the actual transmit
???????frequency, not where I have offset to hear the other station. If
???????I was close to the lower band edge, and I wanted to call CQ on
???????14.000500, I would actually be transmitting 200Hz below the band
???????limit if I have selected CWL mode. Other rigs I have used, even
???????Allard¡¯s sketch for the BitX40, offset the receiver by the
???????amount of the desired tone (offset), either up or down based on
???????if CWU or CWL is selected, so the transmitter always is sending
???????on the dial frequency.
???????On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby
???????<docvacuumtubes@... <mailto:docvacuumtubes@...>> wrote:
???????So, when you do CW, you don't zero beat your RECEIVER to the
???????other station, do you?
???????No.
???????You dial your receiver just the right amount off from the other
???????station's zero beat so that either (a) you are set so that your
???????transmitter will be on the other station's frequency?and you can
???????hear a nice tone from the other station or
???????(b) if you have a very narrow filter, you do (a) as well, but
???????you adjust so that the other station is PEAKED in your passband.
???????Either way.....you are NOT transmitting precisely?where your
???????dial says....because typically you are offset by about 800 Hz.
???????Precisely what you observed.
???????Maybe that makes more sense?
???????My heathkit works the same way.
???????Gordon
???????On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io
???????<n2cqr@... <mailto:[email protected]>> wrote:
???????????I'm trying to get my Version 3 uBITX with CEC version 1.071
???????????to work properly in CW mode.? I have the same problem that
???????????Vic WA4THR had -- I really prefer just to have the display
???????????show the transmit frequency, with the receiver shifting to
???????????produce the desired CW tone.? That is not what happens under
???????????ver 1.071.? ?When the dial indicates 7.0407, I am actually
???????????transmitting on 7.0399.
???????????Is there anyway I can easily correct this without a major
???????????software overhaul?? I am still running uBITX v 3 with a 16x2
???????????display.
???????????Thanks,? Bill N2CQR
-- bark less - wag more
|
Aargh. ?I may be wrong here! ? If I am, my apologies, it makes my head spin a bit. ? I¡¯ll have to go fiddle with the radio and try it out. ?
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On Dec 13, 2019, at 19:54, Gordon Gibby via Groups.Io < docvacuumtubes@...> wrote: I¡¯ll have to look back at the code to see how the MicroBitx ?works, ? But after dealing with this at last field day, I wrote a document on how my ICOM works.
It may not be quite what you thought!
(and I¡¯m pretty sure that¡¯s how my Heathkit SB 102 always worked )?On the ICOM also, when you transmit, you weren¡¯t transmitting zero- beated with your dial frequency. ? As I explained earlier, you would not want to be. ? It¡¯s all a matter of understanding how your rig works?
I¡¯ll go back and look at the code on the uBitx and see how it works. ? Hi,I have always preferred my dial to show my my TX carrier frequency whether or not it is suppressed. There are fiducial marks to show where to set for receive (USB or LSB). WWV is double sideband, full carrier AM (not SSB or CW) and yes it will be zero beated when you are zeroed with it's carrier. SSB and CW require a tiny amount more effort. If you operate near the (sub)band edge pay closer attention.Transceivers are more often setup for the dial to to show the center of the SSB passband and often considered to 1500 Hz from the (suppressed) carrier.In the end, you have to know how the radio you are using is configured. Either way (tx or rx reading) will work but if you are not aware which way your radio works you could transmit outside your license assignment. Your entire emitted signal is supposed to remain inside those prescribed band edges.Merry Christmas and..73,Bill ?KU8HOn 12/13/19 5:34 PM, Gordon Gibby wrote:When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes@... <mailto:[email protected]>> wrote:
???well, you might be right, but when you zero beat a heathkit to a 100
???kHz marker, and subsequently tune in a CW signal, you will be
???transmitting on a DIFFERENT frequency from what your dial shows. ??????So I don't think you are correct for a heathkit SB-102, which I used
???for many many years....and still have
???On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io
???<n2cqr@... <mailto:[email protected]>> wrote:
???????Usually the freq readout on the display IS the transmit
???????frequency, with the offset taking place in the receiver -- the
???????receiver shifts the 700 Hz or so.? ?But here the transmit
???????frequency shifts.? That is kind of weird.? ?As Vic points out:
???????I just finished my V4 uBitX with CEC 1.10 firmware and the V3
???????Nextion GUI. I think the method of offsetting the transmit
???????frequency is backwards to how CW offset should be done. Although
???????this works, it can have bad consequences. If the other station
???????is transmitting on 14.100 I will not hear him unless I tune the
???????uBitX to 14.099300 if I am particular about hearing a 700Hz tone
???????and I am using CWU, so that means I actually will be
???????transmitting on 14.100 when I send back and he will hear me.
???????Similarly, if I have selected CWL I won¡¯t hear him until I set
???????the receiver to 14.100700 and I will be transmitting back on his
???????frequency. However, we should be indicating the actual transmit
???????frequency, not where I have offset to hear the other station. If
???????I was close to the lower band edge, and I wanted to call CQ on
???????14.000500, I would actually be transmitting 200Hz below the band
???????limit if I have selected CWL mode. Other rigs I have used, even
???????Allard¡¯s sketch for the BitX40, offset the receiver by the
???????amount of the desired tone (offset), either up or down based on
???????if CWU or CWL is selected, so the transmitter always is sending
???????on the dial frequency.
???????On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby
???????<docvacuumtubes@... <mailto:docvacuumtubes@...>> wrote:
???????So, when you do CW, you don't zero beat your RECEIVER to the
???????other station, do you?
???????No.
???????You dial your receiver just the right amount off from the other
???????station's zero beat so that either (a) you are set so that your
???????transmitter will be on the other station's frequency?and you can
???????hear a nice tone from the other station or
???????(b) if you have a very narrow filter, you do (a) as well, but
???????you adjust so that the other station is PEAKED in your passband.
???????Either way.....you are NOT transmitting precisely?where your
???????dial says....because typically you are offset by about 800 Hz.
???????Precisely what you observed.
???????Maybe that makes more sense?
???????My heathkit works the same way.
???????Gordon
???????On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io
???????<n2cqr@... <mailto:[email protected]>> wrote:
???????????I'm trying to get my Version 3 uBITX with CEC version 1.071
???????????to work properly in CW mode.? I have the same problem that
???????????Vic WA4THR had -- I really prefer just to have the display
???????????show the transmit frequency, with the receiver shifting to
???????????produce the desired CW tone.? That is not what happens under
???????????ver 1.071.? ?When the dial indicates 7.0407, I am actually
???????????transmitting on 7.0399.
???????????Is there anyway I can easily correct this without a major
???????????software overhaul?? I am still running uBITX v 3 with a 16x2
???????????display.
???????????Thanks,? Bill N2CQR
-- bark less - wag more
|
I¡¯ll have to look back at the code to see how the MicroBitx ?works, ? But after dealing with this at last field day, I wrote a document on how my ICOM works.
It may not be quite what you thought!
(and I¡¯m pretty sure that¡¯s how my Heathkit SB 102 always worked )?On the ICOM also, when you transmit, you weren¡¯t transmitting zero- beated with your dial frequency. ? As I explained earlier, you would not want to be. ? It¡¯s all a matter of understanding how your rig works?
I¡¯ll go back and look at the code on the uBitx and see how it works. ?
toggle quoted message
Show quoted text
On Dec 13, 2019, at 19:43, Bill Cromwell < wrcromwell@...> wrote: Hi,I have always preferred my dial to show my my TX carrier frequency whether or not it is suppressed. There are fiducial marks to show where to set for receive (USB or LSB). WWV is double sideband, full carrier AM (not SSB or CW) and yes it will be zero beated when you are zeroed with it's carrier. SSB and CW require a tiny amount more effort. If you operate near the (sub)band edge pay closer attention.Transceivers are more often setup for the dial to to show the center of the SSB passband and often considered to 1500 Hz from the (suppressed) carrier.In the end, you have to know how the radio you are using is configured. Either way (tx or rx reading) will work but if you are not aware which way your radio works you could transmit outside your license assignment. Your entire emitted signal is supposed to remain inside those prescribed band edges.Merry Christmas and..73,Bill ?KU8HOn 12/13/19 5:34 PM, Gordon Gibby wrote:When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes@... <mailto:[email protected]>> wrote:
???well, you might be right, but when you zero beat a heathkit to a 100
???kHz marker, and subsequently tune in a CW signal, you will be
???transmitting on a DIFFERENT frequency from what your dial shows. ??????So I don't think you are correct for a heathkit SB-102, which I used
???for many many years....and still have
???On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io
???<n2cqr@... <mailto:[email protected]>> wrote:
???????Usually the freq readout on the display IS the transmit
???????frequency, with the offset taking place in the receiver -- the
???????receiver shifts the 700 Hz or so.? ?But here the transmit
???????frequency shifts.? That is kind of weird.? ?As Vic points out:
???????I just finished my V4 uBitX with CEC 1.10 firmware and the V3
???????Nextion GUI. I think the method of offsetting the transmit
???????frequency is backwards to how CW offset should be done. Although
???????this works, it can have bad consequences. If the other station
???????is transmitting on 14.100 I will not hear him unless I tune the
???????uBitX to 14.099300 if I am particular about hearing a 700Hz tone
???????and I am using CWU, so that means I actually will be
???????transmitting on 14.100 when I send back and he will hear me.
???????Similarly, if I have selected CWL I won¡¯t hear him until I set
???????the receiver to 14.100700 and I will be transmitting back on his
???????frequency. However, we should be indicating the actual transmit
???????frequency, not where I have offset to hear the other station. If
???????I was close to the lower band edge, and I wanted to call CQ on
???????14.000500, I would actually be transmitting 200Hz below the band
???????limit if I have selected CWL mode. Other rigs I have used, even
???????Allard¡¯s sketch for the BitX40, offset the receiver by the
???????amount of the desired tone (offset), either up or down based on
???????if CWU or CWL is selected, so the transmitter always is sending
???????on the dial frequency.
???????On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby
???????<docvacuumtubes@... <mailto:docvacuumtubes@...>> wrote:
???????So, when you do CW, you don't zero beat your RECEIVER to the
???????other station, do you?
???????No.
???????You dial your receiver just the right amount off from the other
???????station's zero beat so that either (a) you are set so that your
???????transmitter will be on the other station's frequency?and you can
???????hear a nice tone from the other station or
???????(b) if you have a very narrow filter, you do (a) as well, but
???????you adjust so that the other station is PEAKED in your passband.
???????Either way.....you are NOT transmitting precisely?where your
???????dial says....because typically you are offset by about 800 Hz.
???????Precisely what you observed.
???????Maybe that makes more sense?
???????My heathkit works the same way.
???????Gordon
???????On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io
???????<n2cqr@... <mailto:[email protected]>> wrote:
???????????I'm trying to get my Version 3 uBITX with CEC version 1.071
???????????to work properly in CW mode.? I have the same problem that
???????????Vic WA4THR had -- I really prefer just to have the display
???????????show the transmit frequency, with the receiver shifting to
???????????produce the desired CW tone.? That is not what happens under
???????????ver 1.071.? ?When the dial indicates 7.0407, I am actually
???????????transmitting on 7.0399.
???????????Is there anyway I can easily correct this without a major
???????????software overhaul?? I am still running uBITX v 3 with a 16x2
???????????display.
???????????Thanks,? Bill N2CQR
-- bark less - wag more
|
Hi,
I have always preferred my dial to show my my TX carrier frequency whether or not it is suppressed. There are fiducial marks to show where to set for receive (USB or LSB). WWV is double sideband, full carrier AM (not SSB or CW) and yes it will be zero beated when you are zeroed with it's carrier. SSB and CW require a tiny amount more effort. If you operate near the (sub)band edge pay closer attention.
Transceivers are more often setup for the dial to to show the center of the SSB passband and often considered to 1500 Hz from the (suppressed) carrier.
In the end, you have to know how the radio you are using is configured. Either way (tx or rx reading) will work but if you are not aware which way your radio works you could transmit outside your license assignment. Your entire emitted signal is supposed to remain inside those prescribed band edges.
Merry Christmas and..
73,
Bill KU8H
toggle quoted message
Show quoted text
On 12/13/19 5:34 PM, Gordon Gibby wrote: When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes@... <mailto:[email protected]>> wrote:
well, you might be right, but when you zero beat a heathkit to a 100
kHz marker, and subsequently tune in a CW signal, you will be
transmitting on a DIFFERENT frequency from what your dial shows. So I don't think you are correct for a heathkit SB-102, which I used
for many many years....and still have
On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io
<n2cqr@... <mailto:[email protected]>> wrote:
Usually the freq readout on the display IS the transmit
frequency, with the offset taking place in the receiver -- the
receiver shifts the 700 Hz or so.? ?But here the transmit
frequency shifts.? That is kind of weird.? ?As Vic points out:
I just finished my V4 uBitX with CEC 1.10 firmware and the V3
Nextion GUI. I think the method of offsetting the transmit
frequency is backwards to how CW offset should be done. Although
this works, it can have bad consequences. If the other station
is transmitting on 14.100 I will not hear him unless I tune the
uBitX to 14.099300 if I am particular about hearing a 700Hz tone
and I am using CWU, so that means I actually will be
transmitting on 14.100 when I send back and he will hear me.
Similarly, if I have selected CWL I won¡¯t hear him until I set
the receiver to 14.100700 and I will be transmitting back on his
frequency. However, we should be indicating the actual transmit
frequency, not where I have offset to hear the other station. If
I was close to the lower band edge, and I wanted to call CQ on
14.000500, I would actually be transmitting 200Hz below the band
limit if I have selected CWL mode. Other rigs I have used, even
Allard¡¯s sketch for the BitX40, offset the receiver by the
amount of the desired tone (offset), either up or down based on
if CWU or CWL is selected, so the transmitter always is sending
on the dial frequency.
On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby
<docvacuumtubes@... <mailto:docvacuumtubes@...>> wrote:
So, when you do CW, you don't zero beat your RECEIVER to the
other station, do you?
No.
You dial your receiver just the right amount off from the other
station's zero beat so that either (a) you are set so that your
transmitter will be on the other station's frequency?and you can
hear a nice tone from the other station or
(b) if you have a very narrow filter, you do (a) as well, but
you adjust so that the other station is PEAKED in your passband.
Either way.....you are NOT transmitting precisely?where your
dial says....because typically you are offset by about 800 Hz.
Precisely what you observed.
Maybe that makes more sense?
My heathkit works the same way.
Gordon
On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io
<n2cqr@... <mailto:[email protected]>> wrote:
I'm trying to get my Version 3 uBITX with CEC version 1.071
to work properly in CW mode.? I have the same problem that
Vic WA4THR had -- I really prefer just to have the display
show the transmit frequency, with the receiver shifting to
produce the desired CW tone.? That is not what happens under
ver 1.071.? ?When the dial indicates 7.0407, I am actually
transmitting on 7.0399.
Is there anyway I can easily correct this without a major
software overhaul?? I am still running uBITX v 3 with a 16x2
display.
Thanks,? Bill N2CQR
--
bark less - wag more
|
For Sale - unbuilt Bitx40, uBitx Kits
Hello all,
I've got two unbuilt/unattempted kits for sale. Both kits are as packed by HFSIGNALS.
First up, an unbuilt Bitx40 from Dec. 2016, 2x speakers and an undrilled case from Amazon (blue & white) sold as kit, looking for $75 shipped ConUS.
Second, I have an unbuilt uBitx from Feb. 2019, asking $125 shipped ConUS.
Both kits have original invoice from HFSIGNALS.
PayPal accepted, email me direct with any questions.
Thanks,
Ken Hansen, N2VIP
|
What I think he meant, and what I was wondering, is whether you added any new thru-holes for easier imstallation of some common mods.
Specifically, the tx/rx LEDs that came with the custom case kit, and the N8DAH AGC board. Have you designed in thru-holes and solder jumper so that these can be installed without having to scrape, cut and solder the fine traces?
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Show quoted text
On Fri, 13 Dec 2019, Ashhar Farhan wrote: All the cables and connectors of v5 are preserved as it. The only thing you need to do is to swap the 16x2 LCD for a tft display.Unfortunately, we are selling the boxes only as a part of the kit. These
boxes are so heavy that the extra money is mostlt the freight charge.
On Fri 13 Dec, 2019, 10:27 PM Cory King, <cory@...> wrote:
What I'm wondering is, now that all the connectors are soldered into the board, will the v6 board have thru-holes on it to solder in audio cables?? That way it is easy to hook up all those
soundcard daughterboards for digital modes and/or hook up some of the Auto Gain Control cards I see floating around?? Would be cool to have strategically placed thru-holes on it to hook up some
of the pan-adapters I've seen around as well.
Anyway, this seems like a pretty good evolution of this radio!
--
Rick Green N8BJX
We, the People of the United States of America, reject the U.S. Supreme Court's
Citizens United ruling, and move to amend our Constitution to firmly establish
that money is not speech, and that human beings, not corporations, are persons
entitled to constitutional rights.
|
Bill
you have been promoting this rig for years, and now you label this as weird?? okay let me remind you what's happening.?
remember this is a dual-mode rig.? as it tunes, it displays the SSB carrier (okay where it would be).? when we key down for CW, it appropriately sets the transmit to where we are listening.? now the rig does not know whether we will speak into the microphone or do CW.? some have set their display for CW, but then the SSB would be off.? I have learned the simple math to correct for my CW positioning when I look for an op who is spotted (such as on the nice skcc list).?
enjoy your radiations!? nice to have you in the CW spectrum.?
Curt wb8yyy
|
On the ugly build uBITx I now have the latest CEC firmware installed, and a 4-line display (2004)
I can receive and decode FT8 and WSPR via laptop running latest WSJT-x, connected via CAT.
Setup : USB connected to nano and headphone-jack from radio to audio in on internal laptop soundcard.
Works great.
Then I connected a pre-tuned antenna tuner and put the cable from laptop soundcard into the Microphone-jack.
The uBITx started clicking some relais, and went into Tx mode without outputting RF as far as I could tell.
Took all cables out and tried again, same (is noise from laptop audio out triggering Vox PTT?, but reading this forum after the issue : there is no Vox-circuit)
Tried with only cable into Mic-jack : switching to Tx a few times and then settles to Rx again.
So far I did not install the electret-mic and did not install the PTT-switch. I do not intend to do SSB/phone.
The CEC firmware should work CAT-PTT so what am I doing wrong?
Advice and suggestions highly appreciated.
--
PE3ES - F4VTQ - Erwin
73
|
When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work?exactly this way, so that it becomes easy to be right on frequency?of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.? ?If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station?you had put in the ccenter of your audio filter passband.
On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes= [email protected]> wrote: well, you might be right, but when you zero beat a heathkit to a 100 kHz marker, and subsequently tune in a CW signal, you will be transmitting on a DIFFERENT frequency from what your dial shows.? ? So I don't think you are correct for a heathkit SB-102, which I used for many many years....and still have
On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote:
Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.? ?But here the transmit frequency shifts.? That is kind of weird.? ?As Vic points out:?
I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won¡¯t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard¡¯s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.
So, when you do CW, you don't zero beat your RECEIVER to the other station, do you? No.? ? You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency?and you can hear a nice tone from the other station or? (b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.
Either way.....you are NOT transmitting precisely?where your dial says....because typically you are offset by about 800 Hz.
Precisely what you observed.? ? Maybe that makes more sense? My heathkit works the same way.?
Gordon
On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote: I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.? I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.? That is not what happens under ver 1.071.? ?When the dial indicates 7.0407, I am actually transmitting on 7.0399.? Is there anyway I can easily correct this without a major software overhaul?? I am still running uBITX v 3 with a 16x2 display.?
Thanks,? Bill N2CQR
|
Re: Audio isolation w/ digital modes
#ubitx
On Thu, Dec 12, 2019 at 06:38 AM, W4MWD wrote:
audio taper control : I had to look that up via goo-gle
Interesting idea thanks ? -- PE3ES - F4VTQ - Erwin 73
|
well, you might be right, but when you zero beat a heathkit to a 100 kHz marker, and subsequently tune in a CW signal, you will be transmitting on a DIFFERENT frequency from what your dial shows.? ? So I don't think you are correct for a heathkit SB-102, which I used for many many years....and still have
On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote:
Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.? ?But here the transmit frequency shifts.? That is kind of weird.? ?As Vic points out:?
I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won¡¯t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard¡¯s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.
So, when you do CW, you don't zero beat your RECEIVER to the other station, do you? No.? ? You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency?and you can hear a nice tone from the other station or? (b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.
Either way.....you are NOT transmitting precisely?where your dial says....because typically you are offset by about 800 Hz.
Precisely what you observed.? ? Maybe that makes more sense? My heathkit works the same way.?
Gordon
On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote: I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.? I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.? That is not what happens under ver 1.071.? ?When the dial indicates 7.0407, I am actually transmitting on 7.0399.? Is there anyway I can easily correct this without a major software overhaul?? I am still running uBITX v 3 with a 16x2 display.?
Thanks,? Bill N2CQR
|
Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.? ?But here the transmit frequency shifts.? That is kind of weird.? ?As Vic points out:?
I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won¡¯t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard¡¯s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.
On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:
So, when you do CW, you don't zero beat your RECEIVER to the other station, do you? No.? ? You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency?and you can hear a nice tone from the other station or? (b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.
Either way.....you are NOT transmitting precisely?where your dial says....because typically you are offset by about 800 Hz.
Precisely what you observed.? ? Maybe that makes more sense? My heathkit works the same way.?
Gordon
On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote: I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.? I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.? That is not what happens under ver 1.071.? ?When the dial indicates 7.0407, I am actually transmitting on 7.0399.? Is there anyway I can easily correct this without a major software overhaul?? I am still running uBITX v 3 with a 16x2 display.?
Thanks,? Bill N2CQR
|
just ordered my V6 looking forward to receiving it next year..Im hunting around for a variable cw filter..any ideas guys.,Dave G0AYD
|
So, when you do CW, you don't zero beat your RECEIVER to the other station, do you? No.? ? You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency?and you can hear a nice tone from the other station or? (b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.
Either way.....you are NOT transmitting precisely?where your dial says....because typically you are offset by about 800 Hz.
Precisely what you observed.? ? Maybe that makes more sense? My heathkit works the same way.?
Gordon
On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr= [email protected]> wrote: I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.? I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.? That is not what happens under ver 1.071.? ?When the dial indicates 7.0407, I am actually transmitting on 7.0399.? Is there anyway I can easily correct this without a major software overhaul?? I am still running uBITX v 3 with a 16x2 display.?
Thanks,? Bill N2CQR
|
I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.? I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.? That is not what happens under ver 1.071.? ?When the dial indicates 7.0407, I am actually transmitting on 7.0399.? Is there anyway I can easily correct this without a major software overhaul?? I am still running uBITX v 3 with a 16x2 display.?
Thanks,? Bill N2CQR
|
Yes, you are correct, the new display is a touch screen.
Joel
N6ALT
|
Do I understand from the instructions that the new V6 kit now has a touch screen? Or does it have lots of extra buttons?
Buddy Brannan, KB5ELV - Erie, PA
Email: buddy@...
Mobile: (814) 431-0962
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Show quoted text
On Dec 13, 2019, at 11:28 AM, _Dave_ K0MBT <davesters@...> wrote:
Very good marketing move. Sir. There are many hams that don't know how to handle an iron. One doesn't have to look past this list and see many radios that don't work because of poor assembly techniques.
Maybe someone will just have to move from a v5 to a v6 and offer their old model for cheap,.
--
73
Dave
k0mbt
Raduino bracket and Ham_Made_Keys
|
Farhan, what is involved in adding new TFT display to my V3?? Is the sketch backward compatible?
On Fri, Dec 13, 2019 at 11:30 AM Ashhar Farhan < farhanbox@...> wrote: All the cables and connectors of v5 are preserved as it. The only thing you need to do is to swap the 16x2 LCD for a tft display. Unfortunately, we are selling the boxes only as a part of the kit. These boxes are so heavy that the extra money is mostlt the freight charge.
On Fri 13 Dec, 2019, 10:27 PM Cory King, < cory@...> wrote: From what I'm reading here, unless you don't want to solder there is no reason to upgrade your v5 to v6.? v6 sounds like it is basically v5 with all the connectors soldered onto the board + a pre-wired TFT display on the raduino board.? It might have slightly different traces on the mainboard, but otherwise it is the same.
What I'm wondering is, now that all the connectors are soldered into the board, will the v6 board have thru-holes on it to solder in audio cables?? That way it is easy to hook up all those soundcard daughterboards for digital modes and/or hook up some of the Auto Gain Control cards I see floating around?? Would be cool to have strategically placed thru-holes on it to hook up some of the pan-adapters I've seen around as well.
Anyway, this seems like a pretty good evolution of this radio!
--
--
Dale Hardin, KS4NS
Elberta, AL
|
Re: Frequency calibration V5
The firmware instructions for calibration for ver 5 appear to be incorrect. I achieved calibration by many iterations of the following: Tune to 10.000 MHz on the dial. (WWV will actually probably be 1.5 kHz lower.) Go to Settings, then Calibration. (The unit will go into TX.) Rotate tuning to increase the offset number shown to say 10. Exit settings, then exit menu. Check where WWV is now. Repeat until zeroed.?
During these?iterations you may have to intersperse going to Settings, Calibration, Bfo to lower the audio spectrum band to where you are able to hear WWV clearly.? ? If you are out of range of WWV you will need a replacement 10 MHz source.
After calibration you then need to place the Bfo correctly within the filter. Unfortunately, the firmware does not quite move the calibrated frequency in parallel, so you may have fine tune calibration again.??
I would appreciate hearing about a faster method.
Chuck w8mqw
I neglected to say: This a new just built v5. It has CEC firmware v 1.20. IT has a nextion 3.2 display.
Any help greatly appreciated.
Morris K7LSV
On Fri, Dec 13, 2019 at 9:31 AM Morris Ford via Groups.Io <morrishford= [email protected]> wrote: I am trying to calibrate a V5 box using a frequency meter. I need someone to interpret the instructions for that in the user manual for CEC software. I tried just transmit and adjust and not the ing happens. I tried into calibrate and transmit and the adjust and nothing happens.?
Any help?
Morris
K7LSV
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Joel Caulkins/N6ALT
Dale Hardin KS4NS