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Old 17th Nov 2017, 11:27 am   #19
sunthaiboy
Retired Dormant Member
 
Join Date: Jun 2011
Location: Crew Green, Powys, Wales, UK.
Posts: 68
Default Re: Monster Pantry Transmitter

As can be seen from the frequency counter, my touch under 4MHz = -2.5KHz (ish), not in the 80m band, but I'm sure tunable with the existing coils/caps. The Racal 835 is old but the frequency displayed is accurate although not correctly gated (sync via a 3-polled rubidium standard). Ignore the spectrum analyser frequency counter, it has its own ideas. 2nd harmonics are 30dB down

I will look inside the tobacco box and let you know what frequency the Xtal is. I suspect 3.975 MHz. (Please note....terminated into a 30dB atten and then the dreg's into my spec anny at 50 ohms)
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