Re: uBITX woes, feeling disheartened. #ubitx
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Nick & possibly others,
I have a similar problem now with my uBITX. It was working just fine with no BCB interference and great audio volume. I was trying to refine the CW transmit frequency and get the BFO set on the filter (note to Ashhar, this procedure needs to be addressed in a bit more detail for those with digital signal generators and other more sophisticated tools, perhaps in a manual appendix.)
All of a sudden I got a huge POP in the speaker as I accidentally overloaded something with too high a signal level input at the antenna from my signal generator (about +5dBM, maybe even higher) and from that point on it only had about 1/3 to 1/2 the audio output it previously had and several close in AM broadcast stations had taken over the radio completely. I was thinking I might have damaged the TDA2822 audio amp so I ordered a handful, but there my be something else that popped.
Anyone have any ideas? I have a half dozen other projects on the bench and had to put this one back for a bit so I'm asking the group.
Jim Sheldon - W0EB
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Sent: 1/4/2018 7:48:35 PM
Subject: Re: [BITX20] uBITX woes, feeling disheartened. #ubitx