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That whole idea of using voltage to determine keyer state makes me nervous. Even something as simple as corrosion on the contacts can make a difference. Take Field Day. Some CW operators bring their

Hi Don: I mounted my K5BCQkit? board as shown in Kees photos. AGC appears to work. I do not have an O scope. Alan

Jack I did consider that approach, but my original intent was to use the minimum number of Arduino pins that could still support desired functionality. This should open up pins for doing much more

Alan, How did you mount yours audio gating board? Where did you ground it? And are we talking about the K5BCQ kit on yours, too? Since it is not distorted I would almost bet that Q3 isn't turning off.

It seems the easiest method I've heard anyone use I refer to as the RCA method. It's what the techs at the RCA service centers used when they had to replace modules on the TacTec hand helds. Cut the

Mark N1VQW I built a similar SNA, but control it via USB/tty link from a Raspberry-Pi. The keypad idea of using a single ADC input to decode keystrokes seems intriguing to me. This morning I set up

Hi Joel, can you tell me the number designations on the relays that you keep in supply. I may have to make a swap out on my uBitX board. Thanks Guy N7BIR

Don: I have a similar problem only I have not installed the RF gain control. On SSB phone transmit my voice comes out of the speaker loud and clear. I find it strange the audio amp / speaker are not

New unopened V3 uBitx in sealed DHL bag for sale, $125 shipped to lower 48. Includes K5BCQ AGC and TX/RX click fix kits.This unit was received in mid April and will have the socketed TDA2822 audio amp

Allison you wrote earlier that, if Q90 was changed to a BFR106, R81 (1kO) needs to be changed to somewhing between 2K-2,7kO. Is this correct? Also, if C81 was changed to 470pF, do C261 and C262 also

Michael, Thanks, I’ll give it a try as it is particularly bad on the SB. When I use a LM386 I usually build VK3YE’s version which has some good gain but tends to be more quiet. Steve pretty much

Joel : Try putting a .01 uF cap in series with a 1.8K Ohm resistor between pins 1 & 5 of the LM386 on your "Slop Bucket". That should get rid of most of the high frequency hiss on the LM386 without

Well, Steve ain't a gonna offer it unless there's sufficient interest. Perhaps the Incas were onto something: ? ??https://news.nationalgeographic.com/news/2008/05/080512-inca-skulls.html Jerry

Hi Joel: Keep me posted if he does offer it. (I need to join another group like I need a hole in my head.) Jack, W8TEE

Hi Jack, Steve only kitted 50 SB's, (they are all gone), however he asked the group last week if we all thought he should order another batch only 40 meter version, I voted yes. We'll see? what

I think groups.io is your best bet. Steve has a poll going now, asking if there is interest in a new run of boards. If you want one you should join the group and respond to that. I may jump in there

Rowland, Check to see if the ground at the center of your new receive RF point is good when the board is unplugged. If it is, then unplug the AGC board and jumper the two outer pins of that RF tap. It

Hi Jack. The "electronic code lock" keypad approach works great if you have lots of I/O pins available. But where I was using an UNO, I was quickly running out of I/O pins. So by using the analog

The the groups.io the only place to get info and perhaps place an order?? Jack, W8TEE

I don't think I'd use an analog approach to it. I'd use something like: (https://circuitdigest.com/sites/default/files/circuitdiagram_mic/Electronic-Code-Lock-Circuit.gif) You can find code at: