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Farhan, Gordon; I have back-to-back Zeners from the final FET Gates to Ground on my DE. (No series resistors) Before installing them I tested how well they would clamp at RF frequencies, due to

It needs more experimentation, it is a simple and interesting experiment to carry out. This lore of zener is very prevalent among hams. - f

Thanks, David...the kind words are sincerely appreciated. Jack, W8TEE

Ashhar, Well said ole Master of electronics!!!!!!. Jack ,Well said to u too ole Master of electronics too. Remember folks, this is totally open sourced, and allowed to be ,odded and hacked.following

Surprising. Is that because of the capacitance of the diode? What happens if you reduce the series resistance?

Gordon, This is in response to your idea of adding zeners to protect the gates. It doesn't work. I added a zener 9v diode and 1k resistor (in series). I was expecting this to clip between 9v and

As I’ve said many times, this is an amazing development spearheaded by one extraordinarily gifted person. People who don’t see what has been accomplished are too quick to make complaints I do

This is with regard to Jack's comments about those who know what it is like to take a bunch of components and turn them into that first contact.? I did that over half a century ago.? The parts came

I couldn't say that any better myself, so Ditto!73 de Mike

I am grateful to you and the rest of the sbitx developers! I am enjoying my 'tinkering'! I'm sorry some discover late that the radio may not be what they thought it was. I think you've done a

All: I'm pretty sure that Hans agrees with me that some people here have been far too unkind to Farhan and have ignored all that he has brought to QRP operators all over the world. Farhan, Hans, and

Dear All, I must apologize for the late reply to this thread. I am getting two threads on my inbox so I am not sure which one to reply to, I will probably copy paste this into both the

It is working a LOT better. So there is some weird interaction between Bookworm 64 bit and my USB3 NVMe setup, one that did not show itself on Buster 32 bit. I can't explain it. The important thing

I am the author of that sBITX-n8me software. Unlike the N8ME-ubitx firmware for the ubitx, that repository is not working software. I am using github as online backup storage for my projects. I keep

I agree, but for that to work, `/dev/gpiomem` needs to be in the `gpio` group. In my example above, I show it was not, till I added it back: ``` pi@sbitx:~/sbitx$ ls -l /dev/gpiomem crw------- 1

I really can't tell. I start some long running command, such as 'sudo apt upgrade' or a long software build, and at some random point it just resets and reboots. I've looked at the logs in

Hello all, I would like to install sbitx-n8me from https://github.com/microenh/sbitx-n8me ( https://github.com/microenh/sbitx-n8me ) on my Raspberry. Can someone explain the procedure to me? (command

I think that gpio access is granted to all users in the 'gpio' group. When I run 'id pi' on my sbitx which displays all the groups for the pi user I get: This confirms my 'pi' user is in the gpio

Please : What exactly You have done that it works like You have reported ??

Please : What exactly You have done that it works like You have reported ??