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My Ubitx 4 is off frequency a bit. The QSO I was tuning @ 7.185.000 on my commercial Xcvr was 7.183.700 on the uBitx 4. My question is which way should I move the VFO to match them? I have the CEC

Hi Rene, It sounds like your BFO is not calibrated.? Have you done that yet?? I think these radios are not calibrated before they are shipped -- it is left up to the user. There is a weblink here to

Hello everyone, i am a new uBitx user, I have built uBitx v5 and loaded CEC firmware for Nextion 3.2 inch display. Moreover, I have incorporated a second Arduino Nano to use it as a standalone signal

Hi, Thank you to all those who responded with kind words of encouragement. I am attaching the draft design for initial review and comments. Some notes; 1. There are two connectors, one that sits on

No problems with my antennas or my radio, works fine now. Thanks anyway. Joel N6ALT

Sounds like it could be fun, though the stock uBitx does not qualify as QRP on the lower HF bands.? You would have to adjust the drive down to be a true QRP (5 watts or under) radio.? Easy to do on

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Since extending our big loop antenna, have had to turn on attenuation? to prevent the Audio signals from over-driving the audio.? Even without the attenuation on there is hardly any noise except for

Hi Malcom, Thank you for sharing your schematic for the unit. Will check the junk box for parts before ordering parts, or possibly David's kit. I'll check your QST lead for further information. Thank

I sent a message to the email address that you suggested. Thanks!

Hi David, I went to website and watched the utube video. Nice unit in operation. Have spot in panel next to the headphone jack for the led. Thank you for suggesting this option. Have never done any

When we go to hfsignals sie, cluck menu and help. Tere they gave communicatio mail address Hfsignals@... We can orderafter inquiring there. I shall get specific details ina day. Sarma vu3zmv

Great option!! Thanks for sharing

I have the QRP-Labs VFO kit on my Bitx40 from day one and it works very well.? I've set it up to calibrate withe a GPS 1PPS and all is good. Bob, W1EXZ

Now that you are kind to support him, perhaps no point in searching. However i shall Regards to great designer. Sarma

One thing that really appealed to me about the MS51 when I read Tom's first post was its potential as an I/O expander for something like an ESP32. What makes it attractive for that are the I2C and SPI

I've used the DigiSpark boards (http://digistump.com/products/1) for several projects including this keyer: While not as cheap as a bare ATTiny85 ($8), it plugs directly into the USB cable and is

Another option but not quite as cheap are the ATtiny series microprocessors. They are 8 bit and quite easy to setup to program using the Arduino IDE with an Arduino as the programmer. I recently setup

Sarma, I haven’t seen a link On hfsignals for that in a long time. That was why I created my own printed circuit board. Do you have a link that would help this gentleman out?

Last Sunday we had a monthly get together of Lamakaan amateur radio club, Hyderabad, India. I raised this topic with Asher Farhan, he replied that they can order Raduino from HFsignals.com. the