Hi Keith,
I believe your Raduino is still OK.
But you probably reversed the collector and emitter of the 2N3904. Please verify that you installed the tranistor correctly.
73 Allard PE1NWL
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Re: uBITX Firmware CEC Version 1.08 S meter, etc
My mistake, when in setup/adjust BFO the default is 11.665, my error with the 12.nnn.
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On May 25, 2018, at 4:54 PM, Ralph Mowery < rmowery42@...> wrote: Right off hand I would say the BFO is way off, probably on the wrong sideband so to speak.
It is usually around 11.996.700, some? where around around 11.996 something instead of 12.something.
It may pay you to load in the original software from the ubitx web page.? That should get you close to calibration.
de ku4pt
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Re: uBITX Firmware CEC Version 1.08 S meter, etc
Right off hand I would say the BFO is way off, probably on the wrong sideband so to speak.
It is usually around 11.996.700, some? where around around 11.996 something instead of 12.something.
It may pay you to load in the original software from the ubitx web page.? That should get you close to calibration.
de ku4pt
On Fri, May 25, 2018 at 4:45 PM, allen west <kb4ra67@...> wrote: Got uBitx set up a couple of weeks ago.? Audio quit, yes, I have the WX chip.? Getting audio from volume control via an external amp.? Made a couple of contacts but got terrible audio reports back.? I have calibration set correctly and get WWV on 10 and 15 MHz. Fine.? I cannot get BFO set.? Every time I think it is set, the station shows 1000 to 1200 cycles below the frequency of the actual station using a K3 as reference.? If I find a station on 7246 and set the dial on uBitx to 7246 and then set the BFO, I will find my station at 7244.8 or close.? I am following the procedure except the radio doesn¡¯t respond tp PTT when in set up mode.? When I press function switch in set BFO, the display reads 12,665 and when I set it where I want it the PTT does nothing so I press function again.? Is that the problem?? Any ideas?
Thanks, Al
_
_._,_._,_
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Re: uBITX Firmware CEC Version 1.08 S meter, etc
Got uBitx set up a couple of weeks ago. ?Audio quit, yes, I have the WX chip. ?Getting audio from volume control via an external amp. ?Made a couple of contacts but got terrible audio reports back. ?I have calibration set correctly and get WWV on 10 and 15 MHz. Fine. ?I cannot get BFO set. ?Every time I think it is set, the station shows 1000 to 1200 cycles below the frequency of the actual station using a K3 as reference. ?If I find a station on 7246 and set the dial on uBitx to 7246 and then set the BFO, I will find my station at 7244.8 or close. ?I am following the procedure except the radio doesn¡¯t respond tp PTT when in set up mode. ?When I press function switch in set BFO, the display reads 12,665 and when I set it where I want it the PTT does nothing so I press function again. ?Is that the problem? ?Any ideas?
Thanks, Al
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On May 25, 2018, at 4:16 PM, Ralph Mowery < rmowery42@...> wrote: The smeter works fine with the 2 line display.? You will have to go to the memory manager and enable it,and set up the values for each s-unit . Then have some kind of hardware going to the 'new' s-meter pin of the ubitx board.
The first line 100 hz is the step size for each partial turn of the tuning dial.? It will change if you change the step size.? The ST shows that you have the software set for a straight key for cw.? That will change with the enabling of the s-meter as that is about where the s-meter will show up.
de ku4pt
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Re: uBITX Firmware CEC Version 1.08 S meter, etc
The smeter works fine with the 2 line display.? You will have to go to the memory manager and enable it,and set up the values for each s-unit . Then have some kind of hardware going to the 'new' s-meter pin of the ubitx board.
The first line 100 hz is the step size for each partial turn of the tuning dial.? It will change if you change the step size.? The ST shows that you have the software set for a straight key for cw.? That will change with the enabling of the s-meter as that is about where the s-meter will show up.
de ku4pt
On Fri, May 25, 2018 at 2:48 PM, Rod Davis <km6sn@...> wrote:
Ivo,
if you go to
and download the manual for firmware 1.072, all
of that is explained.
I believe you must use a 4 line display to get
the S meter; see
Best Regards,
Rod KM6SN
I just made a firmware upgrade to version 1.08 but I can not
see S-meter. What is "100Hz" and "ST" on the first line? Thank
you for the explanation.
Ivo
|
I would carefully check that the volume potentiometer is wired correctly but I suspect it is the wiring to the headphone jack/receptor that is at issue.?
The ground for the headphone jack/receptor, can't remember its color but think it's black, is soldered to the pin out closest to the surface that the jack/receptor is mounted to. The audio line that carries presumably the ac audio without dc offset connects to both the ring and tip connections on the jack/receptor. I believe the audio wire is brown.
If you look at a typical stereo jack/plug the tip is the furthest section from the wire/cable, the ring is the middle section and the shaft is closest to the wire/cable. This jack/plug itself is a bit confusing unless you insert a TRS plug aka 1/8 stereo jack/plug into the jack/receptor and use a continuity test to see which of the remaining pins are the one's needed.
I am guessing but it sounds to me like you either grounded the audio line or have the wrong pin out associated with the jack/receptor.
I don't think I'd try the microphone until you get the receive audio straightened out. Can't really see the harm in it but why tempt chance.
Best wishes
Hello everyone, I'd already assembly my bitx40, but my receive system didn't show any sound at all.?
I've already make a measurements on the transistor voltage.. The only sound I've heard is a quirk sound, like bird sound when the PTT is pressed. And "zzzz" sound in the speaker. What could go wrong?
Please need your help
Thank you so much
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Re: 2 meter bitx possible?
No hits for BGA591, can you give a link?
In some other forum, I recall a conversation between Ashhar and Allison regarding low noise mmic's for a VHF receiver front end.
Can't find it anymore.? Allison had a favorite, quite cheap, extremely low noise figure.
What was that part?
Jerry
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On Fri, May 25, 2018 at 11:36 am, Ashhar Farhan wrote:
As an architecture, the ubitx is quite suitable upto 432 MHz. The changes needed would be as follows:
?
1. The front-end mixer would have to be an ADE-1 or and SBL-1. The current tranformers and BAT54s would cut it.
2. We will need a good band pass filter. Above 146 Mhz, stripline/coax filters are more likely candidates.
3. The LNA and power chain will need MMICs. they are cheap and easily ordered from . A pair of BGA591 can easily provide the obligatory 5 watts.
?
- f
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Re: Need help understanding a line of code in ubitx_si5351.cpp (msxp2 = ...)
#radiuno
When I wrote the si5351bx code I had the Bitx40 in mind, and was testing for a high side vfo of 19mhz.
As I recall, that code was accurate to within something a bit worse than 0.1hz for arbitrary frequencies at 19mhz.
On the uBitx, our VFO can be as high as 30+45 mhz.?
We lose accuracy as the frequency goes up, but the uBitx should still tune correctly to within 1 hz or so.
If accuracy is an issue, you probably want to put that 25mhz reference in an oven before worrying about the calculations.
Easy enough to set these calculations up on a full blown computer somewhere, do a comparison
between the fractional math of the si5351bx_setfreq() routine and something more straightforward
in double precision floating point.
As I recall, the si5351bx code held it's own, accuracy got a little bit better with floating point but not by much.
There's only so much precision the si5351 can give us with those 20 bit registers for b and c.
?
Another factor is phase noise, as we go up in frequency that becomes more of an issue.
I have no way to measure it, and?no idea at what point it's a problem for the various transmission modes.?
There might be minor improvements to be had with regard to si5351 phase noise.? Going to an integer mode
pll msynth divide might help a little bit but I doubt it would be anything like a factor of two.? Some weird stuff
going on with SiLab's ClockBuilderPro, it doesn't seem to bother with integer mode but does an exhaustive
hunt for low b values in the (a+b/c) selection.? I assume that is done to minimize phase noise.
There's some loose talk here about extending the uBitx to 2m and beyond.
If that takes off we may want to consider a Raduino using the si5338.
Better phase noise figures, better precision, reduced crosstalk, can hit much higher frequencies.
If you want to go crazy, there's the si5340/si5341.??
Goes even higher in freq, lower in phase noise, has an spi bus option for much faster load times.
Primary downside is that it burns a watt or so of 1.8v.
Jerry, KE7ER
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On Fri, May 25, 2018 at 10:23 am, David Feldman wrote:
(picking this up from a few weeks ago...)
One follow-up question regarding overflow avoidance method in the SI5351 divider calculation: What is the minimum frequency step size obtained with the ubitx si5351 driver (that is, can you tune a ubitx with 1 Hz steps, or more, or less granular?
Does the pre-shifting code in the driver impact frequency resolution (does it throw away some bits of the desired target frequencies?)
Thanks,
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Re: uBITX Firmware CEC Version 1.08 Release
#ubitx
You can do that yourself. If you don't know how to change the firmwear, there are a bazillion links online to show you how. May as well learn, as there may be other things you'd like to change down the road. Near line 1200 in setup(), you will find code similar to:
? if (userCallsignLength > 0 && ((userCallsignLength & 0x80) == 0x80)) {
??? userCallsignLength = userCallsignLength & 0x7F;
??? printLineFromEEPRom(0, 0, 0, userCallsignLength -1, 0); //eeprom to lcd use offset (USER_CALLSIGN_DAT)
??? delay(2000UL);??????? // Increase from 500
? }
? else {
??? printLineF(0, F("uBITX v0.20"));
??? delay(2000UL);??????? // Increase from 500
??? clearLine2();
? }
?
The line in YELLOW will increase the delay time from a half second to two seconds.
Jack, W8TEE
On Friday, May 25, 2018, 3:01:37 PM EDT, atouk <atouk@...> wrote:
One tiny quibble.
Can you make the version display delay on startup a bit longer.?
It flies by too fast to read.
On 5/23/2018 11:40 AM, Ian Lee wrote:
uBITX Firmware CEC Version 1.08 Release
Version 1.08 is the first major release since 1.061
Version 1.08 includes all additions or improvements from 1.07
to 1.07, 1.071, 1.073, 1.075 since 1.061, Version 1.08 has minor
fixes in 1.075 (Beta)
Changed name to Version 1.08
in Version 1.075 Beta with minor fixed.
?
1.Receive performance is improved compared to the original
firmware or version 1.061
2.ATT function has been added to reduce RF gain (Shift 45Mhz
IF)
3.Added the ability to connect SDR. (Low cost RTL-SDR
available)
4.Added a protocol to ADC Monitoring in CAT communications
5.Various LCD support, 16x02 Parallel LCD - It is the LCD
equipped with uBITX, 16x02 I2C LCD, 20x04 Parallel LCD, 20x04
I2C LCD, 16x02 I2C Dual LCD
6.Added Extended Switch Support
7.Support S Meter - Any S-meter is compatible.
8.Added S-Meter setting assistant to uBITX Manager
9.Add recovery mode (such as Factory Reset)
There have been many other improvements and fixes. More
information is available on the blog.?
Please see the link below for details.
?
You can download HEX file and uBITX Manager from the link
above. You can also download the source code at
and see all the changes I've
made so far. If there is a non-critical bug in the public
version, I will link to the new firmware in the above blog.
?
--
Ian KD8CEC
kd8cec@...
|
Hello everyone i have problem with power specialty on the 20m? i try to change the RV1 and i get maximum value 2-2.5watt so i would to know what is the cause of problem !??
|
Re: uBITX Firmware CEC Version 1.08 Release
#ubitx
One tiny quibble.
Can you make the version display delay on startup a bit longer.?
It flies by too fast to read.
On 5/23/2018 11:40 AM, Ian Lee wrote:
toggle quoted message
Show quoted text
uBITX Firmware CEC Version 1.08 Release
Version 1.08 is the first major release since 1.061
Version 1.08 includes all additions or improvements from 1.07
to 1.07, 1.071, 1.073, 1.075 since 1.061, Version 1.08 has minor
fixes in 1.075 (Beta)
Changed name to Version 1.08
in Version 1.075 Beta with minor fixed.
?
1.Receive performance is improved compared to the original
firmware or version 1.061
2.ATT function has been added to reduce RF gain (Shift 45Mhz
IF)
3.Added the ability to connect SDR. (Low cost RTL-SDR
available)
4.Added a protocol to ADC Monitoring in CAT communications
5.Various LCD support, 16x02 Parallel LCD - It is the LCD
equipped with uBITX, 16x02 I2C LCD, 20x04 Parallel LCD, 20x04
I2C LCD, 16x02 I2C Dual LCD
6.Added Extended Switch Support
7.Support S Meter - Any S-meter is compatible.
8.Added S-Meter setting assistant to uBITX Manager
9.Add recovery mode (such as Factory Reset)
There have been many other improvements and fixes. More
information is available on the blog.?
Please see the link below for details.
?
You can download HEX file and uBITX Manager from the link
above. You can also download the source code at
and see all the changes I've
made so far. If there is a non-critical bug in the public
version, I will link to the new firmware in the above blog.
?
--
Ian KD8CEC
kd8cec@...
|
Re: uBITX Firmware CEC Version 1.08 S meter, etc
Thank you Rod.
Ivo, OK2SHI
|
Re: uBITX Firmware CEC Version 1.08 S meter, etc
Ivo,
if you go to
and download the manual for firmware 1.072, all
of that is explained.
I believe you must use a 4 line display to get
the S meter; see
Best Regards,
Rod KM6SN
toggle quoted message
Show quoted text
I just made a firmware upgrade to version 1.08 but I can not
see S-meter. What is "100Hz" and "ST" on the first line? Thank
you for the explanation.
Ivo
|
Re: uBITX Firmware CEC Version 1.08 Release
#ubitx
I just made a firmware upgrade to version 1.08 but I can not see S-meter. What is "100Hz" and "ST" on the first line? Thank you for the explanation.
Ivo
|
Re: 2 meter bitx possible?
As an architecture, the ubitx is quite suitable upto 432 MHz. The changes needed would be as follows:
1. The front-end mixer would have to be an ADE-1 or and SBL-1. The current tranformers and BAT54s would cut it. 2. We will need a good band pass filter. Above 146 Mhz, stripline/coax filters are more likely candidates. 3. The LNA and power chain will need MMICs. they are cheap and easily ordered from . A pair of BGA591 can easily provide the obligatory 5 watts.
- f
On Fri, May 25, 2018 at 9:34 PM, <freefuel@...> wrote: So we are back to a uBitx with no power amp stage, just the SSB generator and receiver circuits. This might not be a bad idea as it opens up the option to replace the IRF510 circuit with basically anything one might desire.?
-Justin N2TOH?
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Re: uBITX - Digital mode power variation with input frequency
#ubitx
#ft8
Well, as the old saying goes, 'you learn something new everyday' :o)
Many thanks.
Robbie G0HYN
|
Re: Need help understanding a line of code in ubitx_si5351.cpp (msxp2 = ...)
#radiuno
(picking this up from a few weeks ago...)
One follow-up question regarding overflow avoidance method in the SI5351 divider calculation: What is the minimum frequency step size obtained with the ubitx si5351 driver (that is, can you tune a ubitx with 1 Hz steps, or more, or less granular?
Does the pre-shifting code in the driver impact frequency resolution (does it throw away some bits of the desired target frequencies?)
Thanks,
Dave
|
Re: ND6T AGC implementation for uBIT-X
I have uploaded the current paid orders to the Files section under my call and am starting to ship them out (ran out of envelopes).
Anxious to see how the Post Office responds. Some who paid are not in alphabetical order because they did not send their call. Some did not have the money match the order. Some actually sent a little extra "beer money" .....COOL !? ....never had that happen before. If anything needs to be corrected, please send me a note directly? ? K5BCQ"at"ARRL.net?
73 Kees K5BCQ?
|
I installed Allard¡¯s V1.27.? I wired all of the mods with the exception of the touch keyer.? My intention was to use straight key CW.? Prior to the mods, the board worked fine.? In my haste to get the mods in, I inadvertently left out the 4.7K resistor in the TX-RX wiring, wiring direct from the base of the 2n3904 to the Raduino output D7.?
When I fired it up, all calibration functions seemed to work.? The ptt, when pushed, put the BitX into transmit with good output power.? But-----when released, did not return the rig to receive mode.? The PTT wiring from the switch on the microphone checked out o.k.)? When I pull the PTT connector from the board, the rig returns to the receive mode.?
I checked out the wiring and? thought I found my error and inserted the 4.7K resistor between the base and the D7 line.? When I powered up the rig, it powered up in the receive mode.? I pushed the PTT switch and it went into Transmit mode.? It again would not return to receive? mode when I released the PTT button.
?
I tried resetting the rig by grounding the Red wire but it had no effect on correcting the problem.?
I¡¯m hoping I didn¡¯t damage the Arduino by leaving the resistor out.
I do have a spare Radiuno but am hesitant to put that in if I don¡¯t have to.?
Any suggestions would be greatly appreciated!?
Thanks es 73,
Keith - AG?H
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Re: uBITX - Digital mode power variation with input frequency
#ubitx
#ft8
That is correct. And it's not necessary to be on the same slice as the other station.?
--
John - WA2FZW
|
Allard PE1NWL
atouk
Robbie Robertson