Re: slow starting on T41 kit
What files do you want?? I can send them to you directly via email. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] <[email protected]> On Behalf Of Ron VE8RT
Sent: Thursday, February 27, 2025 7:39 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] slow starting on T41 kit? Over the last couple of days I've made attempts to view the .pdf files, both on my Ubuntu desktop and a Win& laptop at work.? The .pdf are not working, instead I have this message: Unable to render code block At this point I don't know what I can do to view the files.
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Re: Show and Tell Friday #1
Oh and yes, the encoder boards are generic (have the ability to select CW or CCW, etc)¡ useful for any project. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] <[email protected]> On Behalf Of Peter McCracken EI3JCB via groups.io
Sent: Friday, February 28, 2025 8:27 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] Show and Tell Friday #1? Just looking at the T41 and K9HZ repos and I can't find the gerbers for either the normal encoder or dual encoder board. I already have the normal encoder board obviously but I am interested in implementing the dual encoders if you are willing to make the gerbers available on your repo ? ? Bill, how about alink to where this is on GitHub? Not building the T41, but this might be useful for some of my other projects. Also where to get the encoder??
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Re: Show and Tell Friday #1
I can make them available when I return from holiday¡ ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] <[email protected]> On Behalf Of Peter McCracken EI3JCB via groups.io
Sent: Friday, February 28, 2025 8:27 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] Show and Tell Friday #1? Just looking at the T41 and K9HZ repos and I can't find the gerbers for either the normal encoder or dual encoder board. I already have the normal encoder board obviously but I am interested in implementing the dual encoders if you are willing to make the gerbers available on your repo ? ? Bill, how about alink to where this is on GitHub? Not building the T41, but this might be useful for some of my other projects. Also where to get the encoder??
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Re: [AmateurRadioBuilders] RP Pico 2
Check:
Earlier Picos could be overclocked at 150MHz, but that overclocking often comes with caveats about doing that.
Jack, W8TEE
On Friday, February 28, 2025 at 09:36:15 AM EST, Graham Whaley via groups.io <graham.whaley@...> wrote:
Hi Jack, do you have any links where we can see that info about the *pi pico 2*? afaict, news has been released that the original Pi Pico has been bumped from 133MHz to 200MHz. I don¡¯t see anything about the Pi Pico 2 though? Having said that, the Pi Pico 2 is interesting because¡ - it already clocks at 150MHz - it has FPU and DSP on the arm cores - is available as a ¡®W¡¯ version already (for about ?6.60 in the UK) with 4MB flash and 520KB RAM I won¡¯t be surprised if a speed bump for Pico2 is announced later, but it has taken some time for that to come for Pico(original), and the Pico2 has not been out that long, so I guess we wait and see. Graham, 2E0WRW
> On 28 Feb 2025, at 14:06, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
>
> All:
>
> I just read that the RP Pico 2 is now capable of running at 200MHz, up from 133MHz earlier. Using CMake, the new speed setting in the compiler is a symbolic constant: PICO_USE_FASTEST_SUPPORTED_CLOCK=1. I don't know if the Arduino IDE recognizes this or not.
>
> There's been interest here in using the Pico as a second I/O processor in the T41. The Pico W has 26 I/O pins, 2Mb of Flash, and WiFi/Bluetooth support. No price was given for the Pico 2 nor did it say anything about WiFi/Bluetooth support, but the standard Pico W is about $8-$10. If I see additional info, I'll post it here.
>
> Jack, W8TEE
>
> --
> Jack, W8TEE
>
-- Jack, W8TEE
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Re: [AmateurRadioBuilders] RP Pico 2
Hi Jack,
do you have any links where we can see that info about the *pi pico 2*?
afaict, news has been released that the original Pi Pico has been bumped from 133MHz to 200MHz. I don¡¯t see anything about the Pi Pico 2 though?
Having said that, the Pi Pico 2 is interesting because¡
- it already clocks at 150MHz
- it has FPU and DSP on the arm cores
- is available as a ¡®W¡¯ version already (for about ?6.60 in the UK) with 4MB flash and 520KB RAM
I won¡¯t be surprised if a speed bump for Pico2 is announced later, but it has taken some time for that to come for Pico(original), and the Pico2 has not been out that long, so I guess we wait and see.
Graham, 2E0WRW
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On 28 Feb 2025, at 14:06, Jack, W8TEE via groups.io <jjpurdum@...> wrote:
All:
I just read that the RP Pico 2 is now capable of running at 200MHz, up from 133MHz earlier. Using CMake, the new speed setting in the compiler is a symbolic constant: PICO_USE_FASTEST_SUPPORTED_CLOCK=1. I don't know if the Arduino IDE recognizes this or not.
There's been interest here in using the Pico as a second I/O processor in the T41. The Pico W has 26 I/O pins, 2Mb of Flash, and WiFi/Bluetooth support. No price was given for the Pico 2 nor did it say anything about WiFi/Bluetooth support, but the standard Pico W is about $8-$10. If I see additional info, I'll post it here.
Jack, W8TEE
--
Jack, W8TEE
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All:
I've also experimented with the XIAO processor from Seeed Studio. It's about the size of your thumbnail and costs $5:
It has 256K of flash and 32K of SRAM with 19 general I/O pins, ADC/DAC pins.
I have used earlier versions of this microprocessor and is compatible with the Arduino IDE and libraries...I haven't found a library yet that didn't work, but there may be some. I use this over the Nano--the clock is 2x faster, a lot more memory, and a much smaller footprint. I don't know if it speed is fast enough for T41 I/O duties. More specs at:
Jack, W8TEE
-- Jack, W8TEE
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Re: Show and Tell Friday #1
Just looking at the T41 and K9HZ repos and I can't find the gerbers for either the normal encoder or dual encoder board. I already have the normal encoder board obviously but I am interested in implementing the dual encoders if you are willing to make the gerbers available on your repo ?
Thanks!
Bill, how about alink to where this is on GitHub? Not building the T41, but this might be useful for some of my other projects. Also where to get the encoder??
--
John P.
WA2FZW
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All:
I just read that the RP Pico 2 is now capable of running at 200MHz, up from 133MHz earlier. Using CMake, the new speed setting in the compiler is a symbolic constant: PICO_USE_FASTEST_SUPPORTED_CLOCK=1. I don't know if the Arduino IDE recognizes this or not.
There's been interest here in using the Pico as a second I/O processor in the T41. The Pico W has 26 I/O pins, 2Mb of Flash, and WiFi/Bluetooth support. No price was given for the Pico 2 nor did it say anything about WiFi/Bluetooth support, but the standard Pico W is about $8-$10. If I see additional info, I'll post it here.
Jack, W8TEE -- Jack, W8TEE
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V66.4 Calibration Instructions
Here is a revised version of the V66.4 calibration PDF.
Al
AC8GY
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Re: T41 V66.4 with Code Revisions
Thanks Albert, SDT66_3 was the first build of the code that actually worked properly for me, appreciate all the hard work from yourself, Jack, Bill, Oliver and the others who have contributed to the T41. It's a great experimental radio !!
On Fri, 28 Feb 2025 at 13:26, Albert Peter via <albertfpeter= [email protected]> wrote: Hi Everyone,
Had some good feedback on the versions 66.1 and 66.3. The attached update fixes the known problems.
Fixes include issues with the SSB transmit cal and power levels, which were caused primarily because of improper initial values. I tried these several times and everything appears to work properly.
The initial setup should be performed in the following order:
1. Frequency Cal
2. Receive cal
3.? Set SSB Power Level to 10W
4. Preliminary SSB PA Power cal to ensure levels are nearly correct
5. Transmit IQ calibration
6. Set CW Power level to 10W
7. CW PA Power level cal
8. Check SSB PA Power Cal. one final time
?
Again, it is best to erase the Teensy to start over with the new EEPRM values and be sure to uncomment line 3163 of the .ino file.? Comment out again after the initial download.
?
Other changes were primarily to fix a couple of the increments and to correct the on-screen text in a few spots.
?
A revised instructions PDF will follow.
Al
AC8GY
?
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T41 V66.4 with Code Revisions
Hi Everyone,
Had some good feedback on the versions 66.1 and 66.3. The attached update fixes the known problems.
Fixes include issues with the SSB transmit cal and power levels, which were caused primarily because of improper initial values. I tried these several times and everything appears to work properly.
The initial setup should be performed in the following order:
1. Frequency Cal
2. Receive cal
3.? Set SSB Power Level to 10W
4. Preliminary SSB PA Power cal to ensure levels are nearly correct
5. Transmit IQ calibration
6. Set CW Power level to 10W
7. CW PA Power level cal
8. Check SSB PA Power Cal. one final time
?
Again, it is best to erase the Teensy to start over with the new EEPRM values and be sure to uncomment line 3163 of the .ino file.? Comment out again after the initial download.
?
Other changes were primarily to fix a couple of the increments and to correct the on-screen text in a few spots.
?
A revised instructions PDF will follow.
Al
AC8GY
?
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Re: T41 SDT Version 66 with Calibration
With 1kHz from a signal generator into the audio hat and the radio in TX mode I'm not seeing any IQ output from the hat. The three clocks seem to be present although I'm not sure what frequency they should be.
?
Roger G8JWT
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Re: slow starting on T41 kit
Good news, checked again tonight and I didn't get any error messages. The problem happened on my home desktop and my work Windows 7Pro laptop, thankfully I'm not having any problems now. When it did happen I could view other .pdf from other websites. All good now :-) Ron VE8RT On Thu, 27 Feb 2025 13:45:55 +0000 (UTC) "jjpurdum via groups.io" <jjpurdum@...> wrote: Whose PDFs and from where? The fact that there don't seem to be others with the problem, perhaps your viewer isn't working correctly. Can you view PDFs from other sources?
Jack, W8TEE
On Thursday, February 27, 2025 at 08:39:06 AM EST, Ron VE8RT <ve8rt@...> wrote:
Over the last couple of days I've made attempts to view the .pdf files, both on my Ubuntu desktop and a Win& laptop at work.? The .pdf are not working, instead I have this message: Unable to render code block?At this point I don't know what I can do to view the files.?Ron
-- Ron VE8RT <ve8rt@...>
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Re: T41 SDT Version 66 with Calibration
I also get no audio out with audio generator to audio hat. I also get no output on cw so maybe I have something else wrong?
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On Feb 27, 2025, at 6:23?PM, bty84827531 via groups.io <roger.trett@...> wrote:
? I did a quick five minute test (it¡¯s late here) with an audio signal generator and likewise got no TX output.?
Roger G8JWT
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Re: T41 SDT Version 66 with Calibration
I did a quick five minute test (it¡¯s late here) with an audio signal generator and likewise got no TX output.?
Roger G8JWT
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Re: T41 SDT Version 66 with Calibration
Hi Al,
Tried your suggestion regarding the tone using Ver066_3. Applied a 1K
tone to the mike jack, keyed the PTT no audio. Audio into the audio
card but nothing coming out on the scope. Tried with a mike with the
same result. Swapped audio cards from my Ver 11 radio same result no
audio. Again loaded the last revision from Oliver that I sent you
last night. Audio works fine both in and out of the audio adapter,
both tone and mike with power out on the wattmeter and dummy load.. CW
also works with that version, just no sidetone but power out. Swapped
adapters again audio in and out ok, so they appear to be working.
Each time I have tried a different software version I have wiped the
teensy to blink. CW keyed provides sidetone and 18 watts out on the
watt meter without calibration with Ver066_3. Switched back to SSB,
nothing from the mike jack or adapter. BTW, no problem with receive
audio. Any suggestions would be appreciated.
Rick, KN4AIE
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On Thu, Feb 27, 2025 at 11:07?AM Rick Price <rickprice48@...> wrote:
Hi Al,
Thanks for clarifying the need for the user supplied audio tone during xmit IQ cal. I will give that a try and report back.
Rick, KN4AIE
________________________________
From: [email protected] <[email protected]> on behalf of Albert Peter via groups.io <albertfpeter@...>
Sent: Thursday, February 27, 2025 10:37 AM
To: [email protected] <[email protected]>
Subject: Re: [SoftwareControlledHamRadio] T41 SDT Version 66 with Calibration
To Everyone having problems with SSB calibration, especially SSB PA power. I did not make it very clear that a signal must be applied to the Mic jack. I will emphasize this in the final version of the Calibration instructions.
I use 1KHz from a signal generator at about 20mV. Set the Mic gain to zero (0) and the power level to 10W. The objective is to set the Mic gain so you get 10W out for an appropriate input signal. In as much as this varies from rig to rig, we can't exactly specify a signal level.
CW Pa adjustment uses an internally generated signal.
it is important that the Cal steps be done in order. Especially check that Transmit IQ setting is done prior to doing the SSB PA power cal.
I just tried all of the Calibration modes with V66.3, and everything works properly on my system.
If you are still having SSB Power issues, please check to make sure that an audio signal is getting into the system. Check the connections between the Audio hat and the Main board.
Hope this works.
Al
AC8GY
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Re: slow starting on T41 kit
On 2025-02-27 06:03, Tim via groups.io wrote: I can view and down load PDF's fine. I think some of the V12
Schematics in PDF format are missing from Git Hub though. *** That's probably because they belong to Bill K9HZ. There are boards that he designed that have become de facto standards for V12. I think - his PA, his LPF, his LPF control card, his BPF. Those cards are in a different area of his github. - Jerry, KF6VB
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Re: T41 SDT Version 66 with Calibration
Hi Al,
Thanks for clarifying the need for the user supplied audio tone during xmit IQ cal. I will give that a try and report back.
Rick, KN4AIE
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To Everyone having problems with SSB calibration, especially SSB PA power. I did not make it very clear that a signal must be applied to the Mic jack. I will emphasize this in the final version of the Calibration instructions.
I use 1KHz from a signal generator at about 20mV. Set the Mic gain to zero (0) and the power level to 10W. The objective is to set the Mic gain so you get 10W out for an appropriate input signal. In as much as this varies from rig to rig, we can't exactly
specify a signal level.?
?
CW Pa adjustment uses an internally generated signal.
?
it is important that the Cal steps be done in order. Especially check that Transmit IQ setting is done prior to doing the SSB PA power cal.
?
I just tried all of the Calibration modes with V66.3, and everything works properly on my system.
?
If you are still having SSB Power issues, please check to make sure that an audio signal is getting into the system. Check the connections between the Audio hat and the Main board.
?
Hope this works.
Al
AC8GY
|
Bob,
Attached is a report showing what I did on 6M.? See the chart on pg 2.
dave, n3ds
On Thu, Feb 27, 2025 at 9:10?AM Robert Luken W3RDL via <now.w3rdl= [email protected]> wrote: I started to wind the coils for the 6m band and am confused about L601,
L603, and L605. The directions say L601 and L605 are 39nH, 5" 24AWG, 5
turns on a 1/8" drill bit. However, L603 is 24nH, 4" 24AWG, 7 turns on a
1/8" drill bit. How can 7 turns require less wire than 5 turns and how
can 7 turns have less inductance than 5 turns?
Bob W3RDL
--
This email has been checked for viruses by Avast antivirus software.
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Re: T41 SDT Version 66 with Calibration
To Everyone having problems with SSB calibration, especially SSB PA power. I did not make it very clear that a signal must be applied to the Mic jack. I will emphasize this in the final version of the Calibration instructions.
I use 1KHz from a signal generator at about 20mV. Set the Mic gain to zero (0) and the power level to 10W. The objective is to set the Mic gain so you get 10W out for an appropriate input signal. In as much as this varies from rig to rig, we can't exactly specify a signal level.?
?
CW Pa adjustment uses an internally generated signal.
?
it is important that the Cal steps be done in order. Especially check that Transmit IQ setting is done prior to doing the SSB PA power cal.
?
I just tried all of the Calibration modes with V66.3, and everything works properly on my system.
?
If you are still having SSB Power issues, please check to make sure that an audio signal is getting into the system. Check the connections between the Audio hat and the Main board.
?
Hope this works.
Al
AC8GY
|
K9HZ
jjpurdum