开云体育

Hi all -

?

While everyone has been busy with s and the z I've gone back to basics with a bitx20 inspired, all-analog SSB rig.? ?In a fit of "spontaneous construction" [(C) N2CQR] I put togeter the receiver over a couple of days.? The VFO is a 9MHz rescue puppy from an FT-401 (thaks Pete, N6QW for the $35 eBay find). The Tx PA was already built - leftover from one of my revs of a homebrew sBitx. Audio amp and first mixer came out of a box I call "boards that could be rigs."? ?Had to wait for 5Mhz crystals to arrive from Mosuser so I put most of the rest of the rig together including a crystal controlled BFO (with a junk box crystal).? TIA IF amplifiers using boards from Todd at MostlyDIYRF.? ?This rig has soul!? Crystals arrived - built the ladder filter with help from the Dishal software, subbed out the junk box crystal in the BFO for one of the extra 5MHz crystals and the rig received great first thing.? Something that has never happened to me before, ever.

?

?

This has been so much fun..... the transmitter should be done this weekend - if my luck continues I will brand this the Miracle 20!

?

73,

Dean

KK4DAS

That sounds a great project.? I have a 5.2 MHz SSB crystal filter lying idle that I have long thought of making into a rig.? But I already have an old analog SSB rig that I built back in the seventies. It is still going great, 9MHz IF, diode ring mixer so easily adapted for different bands. I've used it from 80 metres to 2 metres, and it is currently in use as my 4m (UK 70 MHz band) rig in regular use.

?

I look forward to hearing how your analog rig goes.

?

73, Tony, G4CIZ