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Have a look at a 25 Watt amp by VK3XU at?http://www.philipstorr.id.au/radio/seven/five/25%20Watt%20Amp.pdf Looks a bit simpler to build than the WA2EBY amp. -- John VK6JAH

My ubitx had the same output on 80m. But after lowering the drive, power above 20m was too low. Changed the cap per Farhan sugestion to lower the gain on lower bands to 220pf. Now it gives around 12w

That's exactly where we hope to take it. I've had 4 SDR radios and enjoyed every one of them. However, I don't like being tethered to a PC or laptop. I'm hoping that, collectively, we can create a

The I2C pins are open collector and should be pulled up to 3.3 volts not 5 volts when used with the SI5351. The I2C bus is already pulled up to 3.3V in the uBITX, so additional pull-ups are not

No.

Howard, The i2c bus is normally driven from open collector outputs when writing to it, so it should not have internal pull up resistors used on the input. The bus high voltage (+3.3V) should be driven

Here is another pretty clean LPF board .....I just sent the Gerber off, boards in a week. - Uses 60mil RF lines over a full Ground plane for some level of impedance control. - Uses 6 sets of the same

You send an audio signal of the digital mode over the mic input. If its not CW you’re communicating with you’ll be in SSB mode. Joe kd2nfc

Take a look at Hans new SSB/CW etc rig. And future 10 band capability...... https://www.youtube.com/watch?v=hL6CWaY438Y&feature=youtu.be

I think a modular transceiver, SDR or analog, is a great idea, and I'm seeing some links to transceivers that look very interesting. But, I think trying to convert the uBITX transceiver to something

Is there a narrower filtering going on in CW?? 2.4 kHz won't be good

John: I'm not getting how this Raduino is working. My issue is this. The Arduino runs on 5V. When programmed as an output for I2C A4 and A5 drive up to 5 volts. I am seeing 4.6 volts. The SI5351 is

This is the filter section of the codan Envoy. Caps are under the pcb as you can see. Again this pa is rated at 125watts. It’s quite compact Regards Adrian VK5ZBR

And "Hoeard" = "Howard"

Mr. Farhan, We could sure use more that attitude these days! Your open architecture about the radio extends to your person! I'm in for a new one, to play again.? These are a hoot, and I've been away

Any more AGC kits hidden away? Eddie

appears to be a single relay switching of each filter, also.

Codan NGT, Its getting old in the tooth now, we are up to Envoys. Will see if I can take a phone of that. Easily 125Watts, Codan design there stuff to be tough. We have these radios in service for the

"comma" = "comms" in spellchecker language.

Hoeard: You are correct. The menu is navigated with number plus Enter. Please check that all comma parameters are as per the readme.txt including the line feed options. Your oscilloscope test will