Rob, It might be a problem with the alignment of the SSB filter, especially if you choose to install the capacitors for the 2.6 kHz filter width. It could also be a problem if you activate the RTTY filters - but the real answer depends on your particular crystal set and the filter width you choose as well as the audio spectrum that you wish to demodulate.
You are correct that things will work fine since your lowest BFO setting is above your minimum. So you could just make a note of it and leave it as-is until it becomes a problem with the addition of either the SSB wide filter or the RTTY filter activation. The choice to correct it now or perhaps have a need to correct it later is entirely up to you. 73, Don W3FPR > -----Original Message----- > > When I did Alignment and Test Part II the first time, my BFO low > frequency > was slightly too high: 4912.85 kHz, which is not <= 4912.7 kHz (the > official specification). After having done Assembly Part III and having > checked the calibration of the master oscillator using WWV, I know that > the calibration of the master oscillator is not the fault. > > I carefully calibrated my filters using Tom NØSS's Spectrogram > procedure. > According to my filter calibration table, the lowest frequency > required of > the BFO is 4913.20 kHz, which is still 0.35 kHz higher than my BFO's > minimum frequency. Is my slightly-out-of-spec BFO really a problem? > > 73, > - Rob W7GH _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
