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Bob, I think you have it figured out. The 5 pin cable goes on the end of the 16 pin connector that's nearest the 7805 regulator. They only build one version of the raduino, one that plugs into a

Just got the BITX40 today. I had the uBitx before and sold it to a man who wanted to run digital. It was a dream to put together, no problem whatsoever. But the picture on the wire-up page for the

Thank you Steve. Setting keyer to "hand key" did the trick. Good that I did that before trying to rewrite the code. Bob W7HNV

Bob, ?BITX and BITX40 are different radios.? Which do you have? -- www.bitxmap.com ( http://www.bitxmap.com )

Got a new uBitx 40 and have a question about connecting it up. Connecting up the Raduino, it says to plug in the 5-pin connector. I see the 8-pin connector so no problem. But no 5-pin connector. Does

Andy See if you have sidetone when using cw. If you don't have a key, you still need that external 4.7k resistor anyway. Then put a short across the key input to listen for sidetone audio. If none,

I will be following with interest.?? I managed to trust the connector wiring of the power wire loom, and should have not, as it had power and ground reversed at the connector, and I shot reverse

Hi Group: I am getting no audio out of my ubitX and have tried the suggestions posted here in another string. 1)? RX has +12V at R18 & R38. 2) TX is low at R28 and R40 3)? I have tried SPH out

https://vk3hn.wordpress.com/2017/02/02/arduino-and-si5351-dds-vfobfo/amp/ I got excited and damaged my pre-arduino VFO but managed to do what this cat does here. Get an Arduino (or whatever

Hello, I am looking for the latest updates links for the BIOS, Assembly, LCD upgrades for the uBitx revision 3. Thank you, Misha LeBlanc VE9GIS

er...? Make that nice project TOM !

Hi Tom, et. all, Nice project, Bob... I am rebuilding my homebrew amplifier (I use it with my K2) and would very much like to incorporate auto filter selection.?? I have 7 filters rather than 5, so

Thanks for the link

Yes, attenuates signals on receive by positioning them on the skirt of the 45mhz crystal filter. Might also be used for SSB transmit ALC if you are into that. Idea originated with VK2ETA ?

No not for calibration. It is to attenuate strong signals. I get a lot of powerful stations that saturate the audio Thanks for agreeing with me Evan.

Yes Evan, That is what I too observed. I wonder whether it has some thing to do with Calibration?

High Five Geoff, Nothing succeeds like success:) 73, Bill KU8H -- bark less - wag more

Well guess I am the dummy !! Got rig going on SSB then revisited the settings and on CW found all the options? that I had not realised were there!! So set up straight key and the time to stay on

If you have the Nextion display you will see a red rectangle show up that you can slide left or right to move the filter frequency tak8ng advantage of the 45mhz crystal filter to attenuate the

The attenuator varies from 0-254 If you switch over to the nextion display it becomes a slider on the main screen. Too loud just slide it to the right. Beats digging through the menus.