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Dennis Kidder (W6DQ) and I did start the Software Controlled Ham Radio group as a collection point for anyone who wants to blend our hobby with any software element. Obviously, I get a kick out of it

If you want switchable USB/LSB I had thought you'd want to jumper across L5 (which comes jumpered in the v3) or instead have a few uH in there, but how many uH isn't clear yet. ? Mark

You might try taking the "+12V" of Gian's diagram from pin 8 of the LM386, which is only at 12v when the LM386 is powered up for receive. I don't really know what all "+12V" into pin 7 might do, it

Thanks for responding Jack. I thought you had a different group or site this stuff was coming from and shared here. I went back through my bookmarks and found the "Software controlled ham radio" Yahoo

Still building my bitx60/80 waiting for parts mainly 10k pots bpf and lpf for 80m all done I can not wait to go portable with the radios

Dale, are you using a 5MHz vfo? or have you changed to 19MHz and generate USB at 12MHz. I note you have been using a spectrum analyser. Do you see any close in spurious outputs like in Tom Hurst's

Hi John: I guess that most of the discussion is around what I'm doing to the BITX40, which I call my B40. I'm selling a PCB for those mods which, when done, includes: ? ? B40 mods: TFT color

I assume this is the circuit you are referring to: ?/g/BITX20/message/21876 ( /g/BITX20/message/21876 ) Dumping 12v into the bypass pin of the LM386 to quiet it

Unfortunately I have to withdraw my recommendation for this circuit, it is doing something odd to the transmit.? I am still using it, and have built three of the circuits to find out if it is my

The BITX40 vs3 is what I'm running and I purchased it about 2 or so months ago. I'm not sure what the older models require but I will say it really helped my rig to add the capacitor (100pf) to the L7

I wish some moderator of this site could merge the millions of threads about Jack's VFO into one. -- John - WA2FZW

After making the changes to the font type, size and anti-aliasing that I mentioned in the other thread (Old Eyes), I personally found that the only thing I needed to change in the theme.txt file was

I have been coming to this site everyday and reading what's new, and little by little I see your other stuff creeping in. And was wondering if would post a link to your "other stuff" so I can get the

I doubt you need a relay. The two caps that get removed for USB operation (C91 and C92) can remain out for LSB operation as well. Those caps are there only to allow the old analog VFO on the main

I made 2 functions and call them from the the usb / lsb case button (*in bold)* It compiles and i can tune lsb but usb does not seem to work. However, if i change th - to a plus in the if_offset -

I am a bit confused. I just recently bought the kit and from this thread I can't tell if you are referring to current or older units, or both. Seeking clarity.

I have received the kit just recently and I understand there are a few modes I can do, for example, adding two caps to the voltage regulator on the rardunio to prevent clicks, and one to improve mic

Does anyone have an OldEyesTheme.txt to share? I'd like to minimize experimenting with the color chooser. Thanks all for this great thread. The Arduino IDE has been a pain in my eyes for years. 73,

BITX QSO Night, Sunday, July 30, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere Join us as we make contacts from BITX40 to BITX40 on 7.277 MHz in 40 meters! To participate, call CQ

If you are installing 1n4148's across the antenna and ground you are just limiting the peaks, coming in on the antenna, to approx. .560 volts plus and minus. If you use a germanium diode set you will