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Kees, Since you heard about the Axicom relays, you are pretty much caught up. Replacing relays KT1, KT2, KT3 with Axicom relays flat on the board (without any sockets) seems to bring harmonics down

Hi Jerry, One of your questions was already answered and you even requoted it. He said there is no audio in the speaker nor in the earphones. It could still be wired wrong. In my V3 with CEC software

No receiver audio, sounds like it could be a wiring error around either the volume control or the output of the audio amp to the speaker. Triple check that wiring.? What kind of speaker or headphones

I took a used computer speaker apart and removed the amplifier. Stripped off the switch, volume control, and plug in ports. Mounted it in the case with a couple of standoffs and bolts.Ran the output

I would add that I get a lot of good signal reports using the stock electret mic element.

Hi Bob thanks for your advice I will?let?you know how I go.73 from sunny Queensland. Will

Hi Bob thanks for you advise will let you know how I go 73 From ?Sunny Queensland Will

hi Marty n5kbp? love your dog .thanks for your help will let you know how I go 73 Will from? sunny Queensland

Does this work without any alterations to the board?

Hello, I have assembled my Ubitx yesterday but I am not getting any audio. Here are the details : 1. No audio coming out on speaker as well as headphones. 2. When I am turning the volume control to

Thank you all for the info. I'll take a look at the suggested mods?http://ubitx.net/category/hardware/linear-amp/page/2/?and keep an eye on the QSX

you guessed it! :)

I have a UBITX complete kit un-assembled that is excess to my needs. I also have a nice Tentech case for it. I will sell the two for $115 post paid CONUS. If you have an interest contact me off the

I'm interested in V3 and V4 rework........... I understand Allison's approach to wiring the LPF relays, leaving the 10M LPF in series (not a problem), and requiring a small modification of the Arduino

My own ubitx is outputting from 10w on 160m descending to around 4w on 10m CW. Actual power output on SSB depends upon the microphone used. An improved layout using the same irf510 has been designed

FelixC (felix the cat ?) before you give up on the two watt miserable output perhaps have a look at? http://ubitx.net/category/hardware/linear-amp/page/2/? and the work by Bill S and? Erhart DE3FY

It depends on the versions. Latest production should have more power on the 10m band. My ubitx, ver. 3 early production, has nearly 2w.

Hello. I see that the??BITX?3 MHz to 30 MHz. How many watts can one expect on 10 meters? For those that have used it in 10 meters, how did it perform?

All: The source code for JackAl is nowavailable for download at our web site, hamradiodesigns.com. Iapologize for the delay and that delay is totally on me. Al had hiswork done months ago. In my

I have ver. 3 without any firmware update. I had initially a trouble where cw was sent incorrectly even with my laptop and the homemade optoisolated interface I use for contests. After tinkering quite