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Here are the two lines (highlighted yellow below) I added to the checkTX routine at line 666 (in v1.25.1) to prevent the carrier burst. Will also be included in v1.26 (to be released soon). void

That looks like a great deal also! ? -- John - WA2FZW

The ones? I got were Nylon Unthreaded Spacers, 1/4" OD, 7/16" Length, for Number 4 Screw Size; item number 94639A690 ( https://www.mcmaster.com/#94639A690 ) ? -- John - WA2FZW

Yes Dave; ? ? ?That sounds like it would work, at least to the extent that it would suppress the Rx pop to the AGC limit. Connecting the diode directly to the gate of the FET might be more

I got a box of 180 assorted M3 standoffs from Amazon for ~$8.

I think I know what the problem is whith not being able to see emailadress etc. I opted for the read online only? ( no email update) and it seems like the site don't post the letters after @ .

https://www.mcmaster.com/#nylon-spacers/=19w4vsx ( https://www.mcmaster.com/#nylon-spacers/=19w4vsx )

/g/BITX20/topic/step_by_step_raduino_software/5038330?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,5038330 (

Hey John are these the right ones? I'm thinking not sense they are like a 1.28 a peice. The ones that are not threaded seem to come in packs of 100

The measurements should be through a 50 ohms pad. [email protected]> wrote:

No, no other mods. The only thing that might make a difference is that I'm using 75ms delay instead of 50ms. I found that for my rig 50ms is just too short to completeley eliminate the burst. (BTW

I was thinking of using the tx output from the Raduino, which goes to +5 on TX and drives the transistor that then drives the relays, rather than the PTT Sense which as you say goes to?zero on TX.?

Thanks Allard.? I did try using the PTT sense but still got a very short burst of carrier visible on the scope connected at the antenna output.? Maybe you have some other pop reduction mods in place

Spectrum from Si5351 is very noisy picture.I'm use LPF after each output (this is not enough , but is something). Farhan's source worked, but I have another 3:rotary encoder + buttons and lcd(tested):

I dreamed up a work around for Allards CW mod with mine! Add a 1K across C107. Feed Allards CW DC voltage to the common of D15/16 through a 10K! Current flows through the diode and the new resistor to

Spectrum at CLK0 (1st LO) with second LO at 57 MHz and third at 12 MHz

Hello All, The software version I got from Fahran *-V12.ino I think it is was a draft version and it doesn't work. I took the release here : https://github.com/afarhan/ubitx (

Since abandoning a software hack, I've attempted ferreting out a hardware hack to get rid of the PTT burst, but. I've only been able to cut it back, However; in so doing, I have measured the burst and

Great Job Dave; ???? I spent an inordinate amount of time trying to figure out how to toggle the clock, and finally resorted to looking up the register in the 5351 datasheet. My head started

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