Did you try aligning the ubitx? It is possible that the settings are way off.
Ashok,
Check is all three Raduino clock signals are working. I suspect not.
You will need some instrument that can count or scope 100 MHz.
Good Luck,
Raj vu2zap
On 04/07/2022 4:38 PM, VU3KFK wrote:
> Hi all,
>
> I think finally I have found that my uBitx is unable to receive in 7
> MHZ band. And other bands also poor reception. After few days checking
> for 40m band reception, i was unable to receive anything, even in the
> HF nets that conduct in my area, I cannot hear anyone. My antenna is
> EFHW and SWR is below 1.5.
>
> To check the problem, this is what I did.
>
> I have a crystal oscillator for testing crystals. I took that
> oscillator and installed a 7.023MHz crystal on it and turned it on.
> O/P connected to frequency counter to be sure the oscillator is
> running. Attached a 1 m long wire to uBitx antenna port and placed the
> end of that wire very close to the crystal oscillator. In this
> situation I am supposed to receive 7.023 as a CW signal and also in
> LSB i should be able to hear it if all is OK. uBitx keep on generating
> white noise as it always, not even slight change in noise pitch. Looks
> like uBitx cannot hear anything. Where should I begin troubleshooting ?
