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Re: T41 V9 troubleshooting guide
Dave Cripe made some changes to the 4SQRP boards and they were V09 versions. Greg has provided a link to the build instructions that 4States provided that show V09. I thot that some in my kit were
By james jones · #33422 ·
Re: Radiated EMI from displays
Sure¡­ Hopefully I get better at the code for the design¡­ Its been years since I used G-code for anything. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner -
By K9HZ · #33421 ·
Re: Menu oddities
By pressing the select/enter button (top left). Roger G8JWT
By bty84827531 · #33420 ·
Re: Radiated EMI from displays
If you make one for the 7" display, put me down for one. Jack, W8TEE
By jjpurdum · #33419 ·
Re: T41 V9 troubleshooting guide
Check with Al, but I think that was the number we used on the first batch of boards we produced for the Beta T41
By jjpurdum · #33418 ·
Re: T41 V9 troubleshooting guide
Huh well then what is a V9? 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
By K9HZ · #33417 ·
Re: Radiated EMI from displays
I finally got my 4-axis CNC machine fired up last night and the first thing it made was a box for the back of my radio with a 5¡± display based on John Lundberg¡¯s work. I¡¯m pretty excited about
By K9HZ · #33416 ·
Re: T41 V9 troubleshooting guide
Try this: https://4sqrp.com/kits/T41/4SQRP%20T41%20Assembly%20Manual%20-%201-5-24.pdf -- 73 Greg KF5N
By Greg KF5N · #33415 ·
Re: Menu oddities
Yes, I have the same issue, also when selecting and deselecting CW Rick, KN4AIE Sent: Tuesday, April 8, 2025 12:01 PM To: [email protected] Subject: [SoftwareControlledHamRadio]
By Rick Price · #33414 ·
Re: T41 V9 troubleshooting guide
I don't think so. That was V10. Jack, W8TEE
By jjpurdum · #33413 ·
Re: T41 V9 troubleshooting guide
Version 9? Not familiar with that¡­ Maybe that was a 4SQRP radio? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch ¨C K9ZC
By K9HZ · #33412 ·
T41 V9 troubleshooting guide
A co-worker purchased a V9 T41, but its not completely operational.? I know this is a few revs back, but is there a (per board) check out/troubleshooting guide somewhere for that rev??? Something
By Duane B · #33411 ·
Re: Menu oddities
How are you exiting the menu? Jack, W8TEE
By jjpurdum · #33410 ·
Menu oddities
Each time I press the enter/select button to select a menu setting the tuning fine increment changes. This only happens when exiting the menu. Just pressing select when not in a menu has no effect.
By bty84827531 · #33409 ·
Re: Freq Calibration
¡°The math under the hood in the frequency calibration routine doesn't account for the fine tune frequency offset.¡± I didn¡¯t catch that either¡­ any reason for that. Seems a bit quirky¡­ Dr.
By K9HZ · #33408 ·
Re: Freq Calibration
OK, the direct freq entry was the key.? Freq error on 30M and 20M around 4Hz, Which I think is fine. Thanks Oliver Mark KU3O
By epif18@... · #33407 ·
Re: Freq Calibration
Hey Oliver, I select the 30M band and tune to 10MHz using the Tune knob.? I select SAM demod and use the Fine Tune to get the freq error down to the lowest value possible.? Then I start the
By epif18@... · #33406 ·
Re: Freq Calibration
Are you saying that if you tune to 10 MHz and select SAM demodulation, you measure a frequency offset of 190 Hz? A gotcha with the frequency calibration is that it matters how you tune to 10 MHz --
By Oliver KI3P · #33405 ·
Freq Calibration
Hey 'yall, I'm running a V12, 66.9, TCXO.? I've run freq cal and I'm off by 190 hz.? I've hard coded the cal value into si5351.init as well as 0.0.? The 190 hz error shows against my freq standard
By epif18@... · #33404 ·
Re: More testing on PA
Greg You are correct very easy to over drive 160-80M. I tried lowering input but 6m really suffered. I changed a lot of caps across input to t3 with lower drive but just could not get 6M close. I
By Tim · #33403 ·