Hi Dennis Can you please give a link from where you downloaded firmware Versia 1.22 ? I can't find this version. Thank you.

Can you verify that you have PA power to the IRF510s? I would verify that it is on pin 2 of both IRF510s. Note, the PA power is always there, even in receive. Without the bias voltage, the IRF510

Rob Adding to Jerry's deep answer, the ubitx uses its unusual keying approach out of necessity. the raduino needs to be involved to change the RF path, and a voltage is read from that one pin to

Hi Jimmy, v1.01 is the original stock firmware and it doesn't support the function button and other extra features. For this you would need to upgrade (the latest version is v1.28.1). Detailed

this seems to be an agc issue. probably the timing cap needs to be reduced. - f

I purchased a case from amature radio kits .in The receiver works. Thanks Bruce

The Nano pin used for the keyer input is an analog only input, there is no digital IO cell in the processor silicon at that pin and thus no pullup resistor available. The schematics are a bit

Hello all... I've recently acquired a v3 uBITX with a K1BQT agc board and running TSW v2.02 software. How can I decrease the receiver recovery time after I stop sending cw? Presently it is

The version that shows up when I power on is version 1.01. I have tried to load newer version but apparently I am doing something wrong.

Is there any reason I can't switch the existing uBITX Raduino CW input pin to be digital, INPUT_PULLUP? Obviously it could only be used for straight key in that case, but would it work? I would assume

Hi Jimmy, what's the firmware version (as shown on the LCD at power on)? 73 Allard PE1NWL

Good day all. I have been working on a BITX40 that I purchased earlier this year, so I am certain it is the newest version. The rig turns on and the display and frequency tuning seem to be OK,

Hello all! I would also have a quick question. I built an ubitx V5. My problem with it next is when I want to switch to trasmititng with the small micro switch nothing happens. If, on the other hand,

Link works now. Thank-you! Evan AC9TU

Just did a successful download. Thanks for the tip! -- 73! de KJ7EZN Jim

Check the transmit relay, what are you using to turn TX on?

Did you purchase a case from another vendor? If so, then which one, as they are wired differently and most likely is either a wiring issue or something with the add on boards the case supplier adds

That is supposed to be version 5 u bits Bruce KG5YUO

Hello I completed my very 5 units and it doesn't seem to transmit. It shows tx on the screen but no output on the power meter/ swr meter and the transmit led dosen't lite up. Thanks. Bruce KG5YUO

The link provided appears to be down. I will try again later. 73 Evan AC9TU