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Terry King sells a great I2C dislpay, both 2 and 4 line. You can see them here: http://www.yourduino.com/sunshop/index.php?l=product_detail&p=170 He's also a good technical guy and has lots of

Bill and the group, Thank you. I did the BFO adjustment and what a great improvement. I am located in Glendale, CA just north of Los Angeles near the Rose Bowl. My first contact was to Tucson, AZ

all first. Congratulations on solving problem. I have seen this problem very simple. And the correct answer to that question was Mike's answer. The cause was the wrong eeprom value. ok? I saw an

Hi Group. I am working on a simple "Open source" Raduino replacment board: see here: https://easyeda.com/nikpolini/Raduino-1b3e0cb579154514ad2e014b83346b58 It will use the Adafuit Clock board:

Hi, I've just released Raduino v2.04 for BitX40, download it from https://github.com/amunters/bitx40-raduino-v2 New in this release: * renamed "CLARIFIER" to "Passband Tuning (PBT)" as this seems a

make that K1 Rec. pin3=0 volts?? sorry?? 73's de AC8XZ

Called CQ for a half hour this evening. Nothing but noise!? -- John - WA2FZW

I experienced similar tinny mic audio issues. I had not realized the BFO affects both. After figuring out the BFO tx /rx relationship, I now just transmit and listen to my audio when

Jack, I agree, the rig should be working before you do any software "mods". If your writing your own, then, of course, change one thing at a time. If you like most of us, not writing your own, then

Something like an airwound solenoid inductor will indeed pick up nearby RF through magnetic coupling, perhaps enough to burn traces.? ? I'd be surprised if a toroid could do that, at least with the

Hmmm I didnt know this lol. I wanted to measure something with a RF millivolt meter that measures 8v? So I saw that it can output a signal greater then 8v so I thought it had the range I was looking

<? would be between 100 and 3000 hz, and perhaps sound a bit tinny Should be: On Sun, Feb 11, 2018 at 03:39 pm, Jerry Gaffke wrote:

Transmit and receive are symetrical on the uBitx and Bitx40, uses the same bfo and IF filter. Should have about the same audio characteristics on transmit as receive. Assume the crystal filter has a

That's looks great if you want a high impedance probe for your oscilloscope or spectrum analyzer. RF goes in, bigger RF at the same frequency goes out But that is not a suitable RF probe for a DVM,

Oops -- I noticed you said "tinny when monitoring in another receiver..." That would rule out the BFO in YOUR receiver. It could be the voice quality of your mic amplifier. There have been various

I’m waiting for this to come in the mail

Mike, Bill is probably right, Check and adjust your BFO first. That is almost always the reason for poor voice quality, especially since others are using the more or less the same setup and not

Hey Jerry, I’ve had strange things like his happen to me with other equipment when transmitting even with a little Power like the bitx40. I’ve zapped the inductors on a SpyVerter and SV1AFN

Well, gentlemen, we have a true ham here. If RF is getting back into your booster and changing the output voltage, there are 2 solutions; either block the RF with a filter (and shielding), or change

HI Vic, Interesting observations.... I am having a similar issue with my uBITX and a booster, Ill try the 24v battery solution.... 73. Nik