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I would attempt to use my Arduino keyer, however when I switch over to straight key mode I still notice the delay, so an outboard keyer won’t help. I reniced the sbitx process several times, and

Might want to look at the WinKeyer by K1EL Gerry Sherman Sent by the? Thunderbird

Agreed on the relay coil. There are also several TX voltage points, like on R5, R39, R42 that one could tap into. I’ve had the same questions regarding Linux and timing. I noticed initial keying

If it was me, I'd tie into the transmit relay coil, you only need a few milliamps of current for an led. What happens if the radio gets RF into it and locks up the PI? It might not indicate that the

I put a 4.7ohm resisters in series with the speaker and no more oscillation. Volume is fine too. This is a V3 with the original "bad" TDA2822 still in it. Was planning on putting a socket and

Scott, i would just build a sensing circuit similar to an swr circuit. run a wire thru a toroid? with a few windings and feed it to a diode and maybe a resistor to limit current to light up a led

NEVER TRIED THE 5" NEXTION.have the 3.5" screen on one of my ubitx v3 and of course the ubitx v6 with the tft. 73Davidac9xhgood thru hamcall.net ,qrzcq.com and FCC

to all who are looking for kd8cec software,:hamskey.com/2018/06/ubitx-with-nextion-lcd-cec-firmware.html You might try this website to look for software. the website is still up. has many layers of

Hi All, I am adding a simple PWR LED to indicate when the PWR switch is turned on.? I am also looking for a way to drive a single LED that activates when the sBitx is in transmit mode.? The reason I

Ashhar, Ok. Just checking if the circuitry for the rest of the radio is ok. I do not have a 3D printer but think I can repurpose a TENTEC PTO. K3Bo Sent from Mail for Windows Sent: Monday, August 8,

Dear Group, The new file for the PTO came out very well.? But on my printer (CREALITY? CR-10S PRO)? I had to scale that STL file at 110% to make the 1/4 X20 brass nuts to fit. The rest works

Evan, Will follow your suggestions! Probably try the resister in series with the speaker first and see if a higher impedance will stop the oscillation. If that works, will try the 100ohm 1/2 watt

Got an email from DHL.? My SBit (sans Pi) has left Hyderabad. DHL says delivery by August 15 - they did better on my last order.? We'll see. Gerry Sherman Sent by the Thunderbird

It has some mistakes around the wiring of the relays. I want to replace that with electronic switching. - f

Mark, Yes, the 8kohms is what I measured in the circuit of a v4.? I do not have a v3 to test. The headphones are a much higher impedance.? Because of this, the amp will not be trying to deliver more

Evan, Thanks for the suggestions! Went down that path first. Even tried tried switching what I though was VOl-Hi and Vol-M, no change. When you are saying "8kohms between high and ground" are you

Hi Mark, I would start by checking the wiring of the volume control.? Here are the "wire-up" directions for the uBitx that matches all pre-v6 models:

Is the current ALLANALOG schematic up to date? 73 K3bo Sent from Mail for Windows Sent: Monday, August 8, 2022 9:21 AM To: [email protected] Subject: Re: [BITX20] The Daylight Radio Dear Ashar, No

Ulf, The model of the Nextion screen that you listed is a 2.8nch Basic model.? You need to find an HMI or TFT file that matches a 2.8" basic Nextion.

So, at least I am consistent...? Just finished assembling a v3 and a v5 this weekend. On start, get a high pitch sound (oscillation?) out the speakers if vol is fully counter clockwise. If vol is