[AMRadio] Blast from the past

CL in NC mjcal77 at yahoo.com
Sun Dec 13 20:15:54 EST 2020


Was searching for info on an established 2 meter AM calling freq. and found the 6-7 year old AM Phone posts, plus some QRZ posts.  Did one ever get established?  Is there one that is not a band plan freq but is just used as one?  I've used 144.22 just to keep the AM  rig limbered up, talking to a buddy about 30 miles away.  I got  around to a long put off project of getting an old RS PRO-2 tuneable VHF set to use as a monitor.  It is a dual band with AM and FM, only have 15 bucks in it, and all that was wrong was a blown fuse.  It has excellent sens, in the 0.6uv range and 50.4 tunes in fine, as does 29.5 to 29.7 for 10 meter FM.  As to stability, I thought I might have to go to xtal control, but when tuned to 50.4, it picks up a signal less than 1uv from 50.3 to 50.5, so will probably hear anything there.,  I injected the right freq to force the Hi-band VHF to pick up 144.2, putting it into the accessory crystal socket for fixed freq use, the tuneable LO slug would only get it as far as 148,  the receiver worked fine, so one of those Mouser PLL chips set to the right spot would give me 2 meter AM monitor capability, but what freq to monitor is the issue.  Guessing it will be just as broad on 2 as six, so one crystal would cover +/- 100KC.

Charlie, W4MEC in NC


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