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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

Compared to you guys I am a teenager at 61! More than texting I find whatsapp very useful. Both on the phone and PC. Voice/video calls around the world crystal clear and free! PC app very useful for

Thanks so much for all of the suggestions. I have the receive kerchunk circuit well using the 2n7000 circuit. I look forward to Allard's update. 73 Brent

Hey Mike, I'm only 2 years behind you and between radio projects, airplane projects, house projects, etc. etc. I don't know when I ever had time for work!? -- John - WA2FZW

Some of us are retired with nothing to do! Well, at 72 years old, the gal friend bitched so much, I had to buy a lawnmower ( and yes, I paid for it) and mow and weedwack the lawn today! Now, I can go

I've done some more upgrades to the 45W HF? ($14) Ebay amp, knocking off about a dozen parts and improving the purity overall . I figure the XL primary of the final balun is not matched to the

Dave, thanks for sharing this clever idea to suppress the carrier pulse! I tried it out and even with the standard PTT setup it works great! So it's not necessary to take the PTT from the mike

It's so nice to have too much time on your hands! ?LOL!? -- John - WA2FZW

1.8 terafurlongs per fortnight Caveats: 1. I am not a degreed mechanical engineer. 2. My meds might not be properly titered. 3. The second paragraph above is my conjecture, unsupported by experience

I bought a bag of 100 1/4" nylon spacers from McMaster-Carr for a couple of bucks. They take a 4-40 screw. I bought them longer than needed and cut them to the required length for whatever I'm using