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I assume a 10M leaded resistor from RF-in to ground is what you are suggesting? That will be a lot simpler for me to do than adding an RF gain control. The front panel is getting pretty crowded! tim

My braid is grounded at the entrance box to the house. I also made up shorting plugs for when I unhook the antenna so the center conductor and braid should both be at the same potential. tim

I guess that then assumes you have a very simple tuner (Cap-L leg)? No impedance transformers, inductors to ground, etc. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

I agree! But if the problem here is static buildup then a tuner won't help any more than the coax connector on the rig! tim ab0wr "K9HZ" <bill@...> wrote:

I wound a ft37-43 ferrite to get 33uh. Not as neat as an smd inductor but I ddin't have any of them! tim ab0wr "Howard Fidel" <sonic1@...> wrote:

Thanks Arv , info much appreciated. Norm vk5gi

This is used with the Sotabeams LaserBeam Dual variable kit. I didn't like the limited mounting options or the point-to-point of the filter kit so I made this board for my projects and had a few left

The AGC writeup does mention that the RF gain control is assumed, but the diagram just says "To K3 pin 14" where I assume it should say "To Wiper of RF Gain Pot" ?

Chris: The parts caps I have are smaller then the resistors on the board, I think they resistors are 0805. It is not too difficult to solder one on top of the other. Electrically, it doesn't matter

Howard I don't normally do SMD but this sounds like a good idea ... I'll need to order some for this side of the pond, but which physical SMD sizes are these components? 73 Chris G3SQU

thanks, John. Paul

Detailed instructions how to connect SDR here:? www.hamskey.com/2018/04/how-to-connect-sdr-rtl-sdr-to-ubitx-and.html?m=1 (

Congratulations!? I just ordered one on 18/4/2018, so probably have another month to wait.

Don't let it get to that potential. If you are talking about lightning and such, yes, short it to ground outside. I am referring to those gentle breezes and what I call static charges. Nothing major,

That is not where you want static charges dissipating! Chokes to ground, resistors, at the antenna. All a better place for it (the fire) to happen. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ

In my opinion, the very best LED transmit indicator was the one that Derry Spittle (VE7QK [SK]) used in his Epiphyte QRP SSB series. That was just a 470 ohm quarter watt resistor through a small

The principle idea of my AGC mod is built around the potentiometer RF gain control. It is meant to work in concert with it. As such, that potentiometer works as a static dissipation device to ground.

Hello Thanks ? Best Regards, Stein-Roar Brobakken post@... LB3RE K3RAG Skype: lb3re.rag

The stock uBitx provides a DC path to ground. During receive, that would be K3-12,14, K1-12,14, L1,2,3,4,? and T2. Don's AGC fix adds AC coupling, there is no DC path: ?

Ian's software will do both. Do a search on KD8CEC on this forum, or?see?www.hamskey.com ( http://www.hamskey.com ). 73, John