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Circuit and sw details on splitting the functions over two processors? Maybe one of the mcu's could be a T4.0 to save some bucks?

First off, you need to have a good calibrated signal generator… calibrated in db (or mv so that you can convert to db) that is either variable output or you have a good/accurate variable attenuator.

Hi Tim- Check out this post I made a while ago with some videos showing sweeps of the amplifier: /g/SoftwareControlledHamRadio/message/31850 You have to be careful with the input

Yeah, that’s what mine looks like too. Glad you found the issue. I’ve sold over 1,000 of those PA semi-kits now and I’ve only had three people have issues since I started selling them. One was a

Better Scale

I rewound t1,2 and 3. Tested between each rewind, tuned out T3 was culprit, easiest to wind! Not sure what it was ,I may have had a solder bridge across C25 which on revised board is right next to

I'm back for a while and working on kits again. I put a very high priority on the new Display Driver board that fixes the T41 display freeze issue and allows a nice long cable to the display. I offer

I don't know how long it takes for US changes to ripple through the system. I would write Amazon.UK and try to get an answer. Jack, W8TEE

As per title

It has beeen sold Frank

What I'm looking for is the measuring procedure including the instruments you used to get the 100 dB and 78 dB numbers. I would like to run the same procedure on my radios to see what I get. -- 73

**** I'm guessing -100dBm. dB relative to 1 mW. - Jerry, KF6VB

Well there is no real absolute way its done as you probably know, you first need to determine the noise floor (for the mode) and that is usually the point at which the (S+N)/N = 3db (and of course,

That was changed...don't know why it wasn't updated. Jack, W8TEE

Hi Bill, 100 dB relative to what?? How did you measure that? -- 73 Greg KF5N

“The latest (V12) PCBs are available for less than $5 each on the web site (/g/SoftwareControlledHamRadio). If you wish, pre-fabricated PCBs with all SMD devices already on the

I think this is the correct link: https://a.co/d/7OvoqhH

Ah… old fashion Automatic Volume Control (AVC) dated from the old tube radios…to control the volume of the radio as to not blow out your ear drums… as opposed to RF Gain (or Automatic Gain

if you are in the UK i have a spare set

Yeah another mistake is pulling the wire so tight that is scrapes the enamel off the wire between turns and shorts them together. I am guilty of doing that… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK