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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

Hi Will, There are several replies with good solutions for you. You can also use a set earphones and find that you will have to turn the volume down with those. I have been using "cans" for well over

I picked up 5 of these for $8. Just take take the output from the wiper of the volume pot and feed it. works great.

Geoff I suggest not changing firmware yet, until any bugs worked. I have made dozens of qsos in default setting. Yes its different but it works. Note when you are key down there is a brief pause,?

Correction... I ssid the mic cost $16 but it is $15. Bob — KK5R --------------------------------------------

There are other websites with more info about replacing the Heil or other electret elements but this one also has some mic connector pin-outs. May be useful.

Here's a simple mic that cost $16. If you'd prefer to build one, at least this may give you some ideas. Some places will sell PVC tubing by the foot so it does not mean buying an 8 ot 10 foot section

Hi Will, I use an amplified stereo speaker on both on my version 3 and 4 ubitx radios the speaker is sold on ebay very cheaply and recharged via a usb lead supplied ive used this speaker for 2 years

I'd like to try one of those AGC Mike preamps. I have a number of G.E. commercial mikes, some of which have a preamp built in. I don't think they are anything more than a 1 transistor preamp. I need

There are add-on amps but as a stopgap measure, to use the radio until an amp is built and added, just use an amplified computer speaker. I use one and am satisfied to use just one channel. Has to be

Hi my name is Will put together ubitx radio kit .Found the audio very low .can ?you?suggest an add on amp .also bought uv meter kit along with made up board? and leads as recommended by F6HOY.the

I bought a bunch of the plain switches, with the threaded shaft casing, plus nuts and washers. Also bought 2 or 3 mounted on boards with resistors where called for. I figure to replace the pot with

Sorry for off topic guys, but I recognized Josh from 20 years ago.? We had tcp/ip packet networks running on 2 meters.? Send me an email if you'd like to reminisce! Jim Carpenter wu1n@...

Hi Geoff, Be sure the key contacts are very clean. My key will fail to operate the uBitx in CW mode if there is least imperfection. I installed the CEC software and that improved. It also has other

Hi ...why cant I get the tx/rx working on CW ????? I use the 4k7 pull up resistor as per drwg but when I press key the tx sends? R then back to receive ....if I leave the 4k7 out the tx goes into