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K3RTA and the Group, DE K5FJR, My antenna is a 'Super Antenna" clamped to the railing of my balcony.? Two radials run out and down INSIDE two gutter drains!? It is not invisible but is not too

These points have 12V on them when in transmit mode, according to the schematic for a V4 (and should be the same for later designs): R89, side opposite of C86 U2 Pin 3 (near the 3-pin power connector.

Mornin' Evan: The Teensy in combo with its audio board is a great platform for doing DSP. We used the 3.6 in the JackAl add-on and we do a number of DSP things with it. (You can download the manual

Dave does have a valid point on the future of the CEC software having a large group adding new features.? Currently though in my opinion, the CEC solution has the most features available today.?

Have to ask your self why? The 2.8" nextion is really too small to touch the buttons with the fingers. Have 3 units with Nextion displays 2.8, 3.2, 3.5. The 3.5 is the only one that I? can reliably

Vic Thanks for posting your mods, I will review and learn some more. No 0.1 uF sounds way to large to add to c81. If a rig has a severe dip at 40m, like only 2 or 3 watts, adding something like 100 to

https://soldersmoke.blogspot.com/2020/04/soldersmoke-podcast-220-s-38es-ad9833s.html

Hi Ted, I have used incandescent bulbs as dummy loads too. I did that a lot with vacuum tube finals but it works for solid state too. Not only is it *not* a 50 ohm resistive load but the impedance

I have a v4 uBitX and have made a number of mods that I described and posted with links here: http://www.ecars7255.com/Ham%20Projects/WA4THR/uBitX%20radio%20mods.pdf Hope you find that useful, I

Oh, and for a dummy load in a pinch [at these power levels], get an 1157 tail light bulb and solder both filaments (pin) & shell (earth) to a male BNC or whatever you're using. I wouldn't keep it

K5FJR de K3RTA, This static of which you speak, is it there mainly when you're transmitting, or at any time? I ask, because it smacks of RF infiltration (or "leakage). Your other rigs may not have

Dave, my V6 was doing exactly what your is when I first put power to it.? Then I found out I had the encoder connected to the board and not to the arduino.? You may have checked that but it was not

The short answer is yes.? Here is a link to someone who has done that.? The only issue was alignment of the Nextion screen holes, and he was able to work around by enlarging some of the holes.? He

Dr. M T Thomas, What you describe is a common problem with the uBiTx line of transceivers.? It is most often caused by RF getting into the rig, most likely from either the microphone cord or the coax

is it possibble to replace the screen /ardino with a 2.8 "nextion and a new aruino then use? cec 's software? dave c

many thanks evan

Thanks for the suggestions.? As for RF leakage, I'm in a situation where my dummy load is in a different state so can't do that.? I also have an issue with grounding since I'm in a condo with

I am new to bitx. My microbitx is just completed. RX is fine with very good reception. TX is working with a trouble. If push the PTT the current used is increasing slightly. During modulating the

Hi Ian, Certainly I will take that off your hands. My address is on my QRZ.com page. And let me know what I owe you.? Thank You Scott KN4SMO

Rob, I have not modified the LPFs on my V4, but I did change the relays. The filter caps on the finals are rated 470uf at 25v, so no need to screw with them. On the harmonics, I did see an increase on