Re: uBitx just started transmitting a loud hum #ubitx-help
James,toggle quoted messageShow quoted text
The hum you mentioned is in TX or RX mode ?
In RX mode there should be no DC voltages on Q6.
At 11/04/2018, you wrote:
Raj, just to clarify, that scope was on the collector of q6 with the 4v wave form. The base had only shown much less voltage. The collector had DC voltage as well (somewhere around 10v but I forgot to measure it exactly last night) which is about what I would expect.