Hi Greg, don't worry, I will keep semiQSK included in the firmware. I'm only considering to add an extra user setting so that the operator can optionally choose to use manual T/R switching instead of semiQSK. I believe there is still room for further optimization. - I already improved the issue with the 1:3 CW ratio that Hidehiko reported (will be included in the next version) - There is also a short delay in the beginning of CW transmission (to prevent triggering from noise), perhaps we can shorten this delay as well so as to improve triggering even on single dits at higher speeds. 73 Allard PE1NWL On Wed, July 5, 2017 03:09, Ryhor Harbacheuski wrote: Allard, I really wish you keep semiQSK way of TR CW switching. I just wired all CW connections according to your instructions except sidetone (I had fairly loud speaker in my keyer) and tested it on air. With your latest FW version it works amazingly well. The only issue is occasional slight delay in the beginning of CW transmission (to the point that some single dits at 20-25 wpm speed won't flip BitX into TX at all). You have included a lot of features in your FW, I am not sure if could further optimize its performance in order to avoid delays in TR switching. Thank you once again for your work for all of us.
Ryhor/Greg
W3NW
On Tue, Jul 4, 2017 at 5:46 AM, Allard PE1NWL <pe1nwl@...> wrote:
Hi Hidehiko-san,
On Tue, Jul 4, 2017 at 05:06 am, <qrper72@...> wrote:
The first code loss will be prevent by using the manual PTT SW to ON.
Sorry, but that will not solve the issue unfortunately.
In the current design, the radio will automatically return to SSB mode when the PTT switch is pressed.
Perhaps we need to create an extra setting in the SETTINGS menu for
PTT, so that the user can select AUTO or MANUAL
AUTO (this is current funcionality)
When CW goes down => switch to CW mode
When PTT is pressed => switch to SSB mod
MANUAL (new function)
Operator selects mode manually and presses PTT manually
radio remains in the current mode when PTT is pressed
But I feel the main issue is the 1:3 ratio of the morse code is broken
during the transmit.
I will check the code again and look for any unnecessary delays during CW
transmission.
73 Allard PE1NWL
|
Hi Greg,
don't worry, I will keep semiQSK included in the firmware.
I'm only considering to add an extra user setting so that the operator can
optionally choose to use manual T/R switching instead of semiQSK.
I believe there is still room for further optimization.
- I already improved the issue with the 1:3 CW ratio that Hidehiko reported
toggle quoted message
Show quoted text
On Wed, July 5, 2017 03:09, Ryhor Harbacheuski wrote: Allard, I really wish you keep semiQSK way of TR CW switching. I just
wired all CW connections according to your instructions except
sidetone (I had fairly loud speaker in my keyer) and tested it on air.
With your latest FW version it works amazingly well. The only issue is
occasional slight delay in the beginning of CW transmission (to the
point that some single dits at 20-25 wpm speed won't flip BitX into TX
at all). You have included a lot of features in your FW, I am not
sure if could further optimize its performance in order to avoid
delays in TR switching.
Thank you once again for your work for all of us.
Ryhor/Greg
W3NW
On Tue, Jul 4, 2017 at 5:46 AM, Allard PE1NWL <pe1nwl@...> wrote:
Hi Hidehiko-san,
On Tue, Jul 4, 2017 at 05:06 am, <qrper72@...> wrote:
The first code loss will be prevent by using the manual PTT SW to ON.
Sorry, but that will not solve the issue unfortunately.
In the current design, the radio will automatically return to SSB mode
when
the PTT switch is pressed.
Perhaps we need to create an extra setting in the SETTINGS menu for PTT,
so
that the user can select AUTO or MANUAL
AUTO (this is current funcionality)
When CW goes down => switch to CW mode
When PTT is pressed => switch to SSB mod
MANUAL (new function)
Operator selects mode manually and presses PTT manually
radio remains in the current mode when PTT is pressed
But I feel the main issue is the 1:3 ratio of the morse code is broken
during the transmit.
I will check the code again and look for any unnecessary delays during
CW
transmission.
73 Allard PE1NWL
|
Namaste Raj,
?bee's wax never disturbed any RF or IF coils in the past, to best of my memory. ?Hope that could not be a reason please, regards ?sarma ?vu3zmv
On Wed, Jul 5, 2017 at 11:45 AM, Raj vu2zap <rajendrakumargg@...> wrote:
Hope the signal generator is not in parallel with antenna.
Try with another cable. Many times I have been chasing ghosts when the
problem was a frayed connection in the BNC.
Same thing happened with BITX40 the first time!
or is it Bi'swax ?
Cheers
Raj
At 05/07/2017, you wrote:
I hear nothing that
low, -110, I flip in another 10 and it is gone?
My BitX has Ear Wax!
Mike, WA6ISP
On 7/4/2017 4:25 PM, Vince Vielhaber wrote:
I can confirm Raj's -130.? I just hooked up my Motorola R-2200
service monitor to my BitX.? At -130 I could detect the signal was
there and could probably work a CW station at that level. At -131 I can't
say for sure I was still hearing it.? The lowest it will go is -137
and I definitely didn't hear it there!
Vince.
On 07/04/2017 10:47 AM, Raj vu2zap wrote:
Hi Mike,
I used DBM on HP test set.
The output was by ear. Minimum discernable signal. Volume full!
This was not a Two tone ssb test.
Do a minimum discernable test, thats a level you can have a CW qso.
Crank up the volume full and checck!
Cheers
Raj
At 04-07-2017, you wrote:
Can you describe the procedure
you used??? dBm or uV?
Did you use an output signal somewhere to monitor with scope?
With SSB, how did you set up the modulation??? How did you determine
you were not \
hearing the signal at low levels.
I have 8648C Generator.? ?? I think my BitX has a hearing problem?
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID?
"MotDog@..."
Mike@...
|
Hope the signal generator is not in parallel with antenna.
Try with another cable. Many times I have been chasing ghosts when the
problem was a frayed connection in the BNC.
Same thing happened with BITX40 the first time!
or is it Bi'swax ?
Cheers
Raj
At 05/07/2017, you wrote:
toggle quoted message
Show quoted text
I hear nothing that
low, -110, I flip in another 10 and it is gone?
My BitX has Ear Wax!
Mike, WA6ISP
On 7/4/2017 4:25 PM, Vince Vielhaber wrote:
I can confirm Raj's -130.? I just hooked up my Motorola R-2200
service monitor to my BitX.? At -130 I could detect the signal was
there and could probably work a CW station at that level. At -131 I can't
say for sure I was still hearing it.? The lowest it will go is -137
and I definitely didn't hear it there!
Vince.
On 07/04/2017 10:47 AM, Raj vu2zap wrote:
Hi Mike,
I used DBM on HP test set.
The output was by ear. Minimum discernable signal. Volume full!
This was not a Two tone ssb test.
Do a minimum discernable test, thats a level you can have a CW qso.
Crank up the volume full and checck!
Cheers
Raj
At 04-07-2017, you wrote:
Can you describe the procedure
you used??? dBm or uV?
Did you use an output signal somewhere to monitor with scope?
With SSB, how did you set up the modulation??? How did you determine
you were not \
hearing the signal at low levels.
I have 8648C Generator.? ?? I think my BitX has a hearing problem?
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID?
"MotDog@..."
Mike@...
|
Re: Getting raduino crystal frequency with frequency counter
On Thu, Jun 29, 2017 at 04:11 pm, John Backo wrote:
one of these units and it is quite sensitive and accurate for most ap
John, ?Counter measurements are only as accurate as their internal time base's accuracy. ?Thus it calls for some improved methods like ? calibration of counter time base. ?I had such experiences in my telecom service life. ? ?We used to take atomic clocks reference and adjust the internal time base of the said counters and then the counters used to behave better at least for a short while like 2 or 3 days. Now a days we have gps conditioned? reference clocks and we can perhaps manage to calibrate or use such reference? clock as time base for the counter. regards ?sarma ?vu3zmv
|
I appreciate your comments, Andrew, especially since there are literally hundreds of sites where my books are being given away free. My daughter works at a major publishing house and they have three people on staff whose only job is to find such sites and have the legal department issue cease and desist orders. It's like trying to divert Niagara Falls with a bucket.?
I enjoy writing. If I didn't, I would have stopped years ago because, financially, it's no longer worth it. And therein is the problem. Good authors who depend on writing income can no longer afford to write. Books that would have brought knowledge, pleasure, and joy to thousands simply won't be written. ?If a new author gets lucky and gets a book published and it is successful, it is quickly copied and neither the author who did the work nor the publisher who took the risk, are rewarded. It doesn't take an economist to figure where that goes.
Clearly, it is tempting to download a book that you want and not have to pay for it. As I stand here with my bucket, I know there's nothing I can do to stop those people who make our property available for download. Given that, my position is: If you take my book and read it and feel that you have benefited from it, then go out and buy a copy. It's as close to a win/win as we're going to get. You get the read the book risk free and, if I've done a good job for you, you end up paying me in the end. I also feel that those who do that actually feel better having paid for the book.
Telling you not to download a free book probably isn't going to sway anyone. However, if it turns out to help you, you should help that person in return.
Jack, W8TEE
From: Andrew Krause <andrew.krause@...>
To: [email protected]
Sent: Tuesday, July 4, 2017 5:15 PM
Subject: Re: [BITX20] A Good Book
I just want to say that I have a hard time with people posting PDF links to in-print material that is copyrighted. Someone worked very hard to create a text to educate others. They're entitled to profit from that. Furthermore, this knowledge has value, and is worth paying for.?
It appears that this single chapter is made freely available, so no foul here. But the other day someone posted an entire scanned PDF of a book. What are the groups rules on this?? On Tue, Jul 4, 2017 at 4:50 PM Ken KM4NFQ < km4nfq@...> wrote: Chapter ONE of Experimental Methods in RF Design (EMRFD) is available at:
More on the first transmitter here: and more stuff related to EMRFD here: The latest iteration of EMRFD is the Classic Edition.
A CD-ROM is included with two additional Classic Editions
(scans of printed books in PDF format) written by Wes Hayward, W7ZOI.
Solid State Design for the Radio Amateur (1986)
Introduction to Radio Frequency Design (1994)
SSDRA is the precursor of EMRFD. IRFD is Maths intensive.
Regards,
Ken, KM4NFQ
--
Andrew KrauseGeneral Class Amateur Radio License: KM4ZJO
|
Allard, I really wish you keep semiQSK way of TR CW switching. I just
wired all CW connections according to your instructions except
sidetone (I had fairly loud speaker in my keyer) and tested it on air.
With your latest FW version it works amazingly well. The only issue is
occasional slight delay in the beginning of CW transmission (to the
point that some single dits at 20-25 wpm speed won't flip BitX into TX
at all). You have included a lot of features in your FW, I am not
sure if could further optimize its performance in order to avoid
delays in TR switching.
Thank you once again for your work for all of us.
Ryhor/Greg
W3NW
toggle quoted message
Show quoted text
On Tue, Jul 4, 2017 at 5:46 AM, Allard PE1NWL <pe1nwl@...> wrote: Hi Hidehiko-san,
On Tue, Jul 4, 2017 at 05:06 am, <qrper72@...> wrote:
The first code loss will be prevent by using the manual PTT SW to ON.
Sorry, but that will not solve the issue unfortunately.
In the current design, the radio will automatically return to SSB mode when
the PTT switch is pressed.
Perhaps we need to create an extra setting in the SETTINGS menu for PTT, so
that the user can select AUTO or MANUAL
AUTO (this is current funcionality)
When CW goes down => switch to CW mode
When PTT is pressed => switch to SSB mod
MANUAL (new function)
Operator selects mode manually and presses PTT manually
radio remains in the current mode when PTT is pressed
But I feel the main issue is the 1:3 ratio of the morse code is broken
during the transmit.
I will check the code again and look for any unnecessary delays during CW
transmission.
73 Allard PE1NWL
|
Re: Schema: [BITX20] Interface
I'm going to try it...I hope to catch you on olivia or psk soon...
Built this interface (Duinovox) and it works great.
Joe
VE1BWV
On Tue, Jul 4, 2017, 9:11 PM David Woodward < kf4wbj2@...> wrote: Thank you ...this is a great start. I also want CAT control of the Bitx40...all in one box...
On Jul 4, 2017 6:46 PM, "CX8ABF Carlos Molina" < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
I heat it too.
Vince.
toggle quoted message
Show quoted text
On 07/04/2017 08:34 PM, David Woodward wrote: I heat spell check...
On Jul 4, 2017 8:30 PM, "David Woodward" <kf4wbj2@...
<mailto:kf4wbj2@...>> wrote:
Thank you Mr.Joe...im spoiled by using the ft817 and HRD...I don't
have to touch the radio as the software does everything my some of
my logbook is on qsl.cc I won't resist until my Bitx40 has the same
functionality...
On Jul 4, 2017 8:25 PM, "Joe" <joeman2116@...
<mailto:joeman2116@...>> wrote:
Forgot , the software i use is jt65 HQ with jt 65 alert.
Any digital program will work fine.
VE1BWV
Joe
On Tue, Jul 4, 2017, 9:17 PM joe basque <joeman2116@...
<mailto:joeman2116@...>> wrote:
I run jt65 on the bitx40 using raduino v116
1. Do the usb mod - remove 2 caps - search for usb mod on
bitx groups.
2. In settings set lsb freq then set usb ( usually 1500)
Lsb must be done first.
3. I use a vox ctt to trigger tx
4. 2 600 ohm transformers speaker and mic isolation- not
required but keep the audio clean. To switch between ssb
mic and computer o/p to rig i use a dpdt toggle switch.
5. Thru casual use have confirmed nearly 200 jt65 contacts..
Over 15km is my longist contact.
Works very well at 4 watts..
Joe
VE1BWV
On Tue, Jul 4, 2017, 7:42 PM CX8ABF Carlos Molina
<cx8abf@... <mailto:cx8abf@...>> wrote:
<>
*From:* David Woodward <mailto:kf4wbj2@...>
*Sent:* Tuesday, July 04, 2017 7:33 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* [BITX20] Interface
Wondering if anyone is working on an interface to mate
the Bitx40 with HRD or FDigi....or even there own
program...I miss jt65. and Olivia soo much...not to
mention the filters...
--
Michigan VHF Corp.
|
Re: Schema: [BITX20] Interface
Built this interface (Duinovox) and it works great.
Joe
VE1BWV
On Tue, Jul 4, 2017, 9:11 PM David Woodward < kf4wbj2@...> wrote: Thank you ...this is a great start. I also want CAT control of the Bitx40...all in one box...
On Jul 4, 2017 6:46 PM, "CX8ABF Carlos Molina" < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
I heat spell check...
On Jul 4, 2017 8:30 PM, "David Woodward" < kf4wbj2@...> wrote:
Thank you Mr.Joe...im spoiled by using the ft817 and HRD...I don't have to touch the radio as the software does everything my some of my logbook is on qsl.cc I won't resist until my Bitx40 has the same functionality...
On Jul 4, 2017 8:25 PM, "Joe" < joeman2116@...> wrote: Forgot , the software i use is jt65 HQ with jt 65 alert.
Any digital program will work fine.
VE1BWV
Joe
I run jt65 on the bitx40 using raduino v116
1. Do the usb mod - remove 2 caps - search for usb mod on bitx groups.
2. In settings set lsb freq then set usb ( usually 1500)
Lsb must be done first.
3. I use a vox ctt to trigger tx
4. 2 600 ohm transformers speaker and mic isolation- not required but keep the audio clean.? To switch between ssb mic and computer o/p to rig i use a dpdt toggle switch.
5. Thru casual use have confirmed nearly 200 jt65 contacts..?
Over 15km is my longist contact.?
Works very well at 4 watts..
Joe
VE1BWV
On Tue, Jul 4, 2017, 7:42 PM CX8ABF Carlos Molina < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
Thank you Mr.Joe...im spoiled by using the ft817 and HRD...I don't have to touch the radio as the software does everything my some of my logbook is on qsl.cc I won't resist until my Bitx40 has the same functionality...
Forgot , the software i use is jt65 HQ with jt 65 alert.
Any digital program will work fine.
VE1BWV
Joe
I run jt65 on the bitx40 using raduino v116
1. Do the usb mod - remove 2 caps - search for usb mod on bitx groups.
2. In settings set lsb freq then set usb ( usually 1500)
Lsb must be done first.
3. I use a vox ctt to trigger tx
4. 2 600 ohm transformers speaker and mic isolation- not required but keep the audio clean.? To switch between ssb mic and computer o/p to rig i use a dpdt toggle switch.
5. Thru casual use have confirmed nearly 200 jt65 contacts..?
Over 15km is my longist contact.?
Works very well at 4 watts..
Joe
VE1BWV
On Tue, Jul 4, 2017, 7:42 PM CX8ABF Carlos Molina < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
Forgot , the software i use is jt65 HQ with jt 65 alert.
Any digital program will work fine.
VE1BWV
Joe
I run jt65 on the bitx40 using raduino v116
1. Do the usb mod - remove 2 caps - search for usb mod on bitx groups.
2. In settings set lsb freq then set usb ( usually 1500)
Lsb must be done first.
3. I use a vox ctt to trigger tx
4. 2 600 ohm transformers speaker and mic isolation- not required but keep the audio clean.? To switch between ssb mic and computer o/p to rig i use a dpdt toggle switch.
5. Thru casual use have confirmed nearly 200 jt65 contacts..?
Over 15km is my longist contact.?
Works very well at 4 watts..
Joe
VE1BWV
On Tue, Jul 4, 2017, 7:42 PM CX8ABF Carlos Molina < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
I run jt65 on the bitx40 using raduino v116
1. Do the usb mod - remove 2 caps - search for usb mod on bitx groups.
2. In settings set lsb freq then set usb ( usually 1500)
Lsb must be done first.
3. I use a vox ctt to trigger tx
4. 2 600 ohm transformers speaker and mic isolation- not required but keep the audio clean.? To switch between ssb mic and computer o/p to rig i use a dpdt toggle switch.
5. Thru casual use have confirmed nearly 200 jt65 contacts..?
Over 15km is my longist contact.?
Works very well at 4 watts..
Joe
VE1BWV
On Tue, Jul 4, 2017, 7:42 PM CX8ABF Carlos Molina < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
Re: Schema: [BITX20] Interface
Thank you ...this is a great start. I also want CAT control of the Bitx40...all in one box...
On Jul 4, 2017 6:46 PM, "CX8ABF Carlos Molina" < cx8abf@...> wrote:
?
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
I hear nothing that low, -110, I flip in another
10 and it is gone?
My BitX has Ear Wax!
Mike, WA6ISP
On 7/4/2017 4:25 PM, Vince Vielhaber
wrote:
I can confirm Raj's -130.? I just hooked up my Motorola R-2200
service monitor to my BitX.? At -130 I could detect the signal was
there and could probably work a CW station at that level. At -131
I can't say for sure I was still hearing it.? The lowest it will
go is -137 and I definitely didn't hear it there!
Vince.
On 07/04/2017 10:47 AM, Raj vu2zap wrote:
Hi Mike,
I used DBM on HP test set.
The output was by ear. Minimum discernable signal. Volume full!
This was not a Two tone ssb test.
Do a minimum discernable test, thats a level you can have a CW
qso.
Crank up the volume full and checck!
Cheers
Raj
At 04-07-2017, you wrote:
Can you describe the procedure you
used??? dBm or uV?
Did you use an output signal somewhere to monitor with scope?
With SSB, how did you set up the modulation??? How did you
determine
you were not \
hearing the signal at low levels.
I have 8648C Generator.? ?? I think my BitX has a hearing
problem?
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
|
I can confirm Raj's -130. I just hooked up my Motorola R-2200 service monitor to my BitX. At -130 I could detect the signal was there and could probably work a CW station at that level. At -131 I can't say for sure I was still hearing it. The lowest it will go is -137 and I definitely didn't hear it there!
Vince.
toggle quoted message
Show quoted text
On 07/04/2017 10:47 AM, Raj vu2zap wrote: Hi Mike,
I used DBM on HP test set.
The output was by ear. Minimum discernable signal. Volume full!
This was not a Two tone ssb test.
Do a minimum discernable test, thats a level you can have a CW qso.
Crank up the volume full and checck!
Cheers
Raj
At 04-07-2017, you wrote:
Can you describe the procedure you used?? dBm or uV?
Did you use an output signal somewhere to monitor with scope?
With SSB, how did you set up the modulation?? How did you determine
you were not \
hearing the signal at low levels.
I have 8648C Generator.? ? I think my BitX has a hearing problem?
--
Michigan VHF Corp.
|
Considering my old Collins receiver has a 1 or 1.5mv sensitivity, the BitX is super sensitive! I haven't checked it on the service monitor yet tho.
Vince,
toggle quoted message
Show quoted text
On 07/04/2017 05:16 AM, Mvs Sarma wrote: comparing to cost of K2, the sensitivity has reached almost the best
value, I suppose.
sarma
vu3zmv
On Tue, Jul 4, 2017 at 2:35 PM, <qrper72@...
<mailto:qrper72@...>> wrote:
I wonder my BITX has less sensitivity or not.
I maesured it about -117dBm using my HP8656B SG.
Not reached to 120dBm. My K2 reached to -127dBm. hi...
How is your BITX?
ja9mat Hidehiko.
--
Regards
Sarma
--
Michigan VHF Corp.
|
Schema: [BITX20] Interface
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
Other: [BITX20] Interface
toggle quoted message
Show quoted text
Sent: Tuesday, July 04, 2017 7:33 PM
Subject: [BITX20] Interface
?
Wondering
if anyone is working on an interface to mate the Bitx40 with HRD or FDigi....or
even there own program...I miss jt65. and Olivia soo much...not to mention the
filters...
|
Allard PE1NWL
Raj vu2zap
CX8ABF Carlos Molina