[Hallicrafters] A 'possible' SX-101 spur problem?
Edward B Richards
zuu6k at juno.com
Wed Nov 17 17:23:35 EST 2004
Hi Phil;
I don't have the answer but I hear them too, here in Simi Valley, on my
HQ-100A. I thought they were images but I haven't checked 910 kc above
the frequency. will do so. Thanks.
On Wed, 17 Nov 2004 20:16:22 -0000 "Philip Atchley"
<beaconeer at mercednet.com> writes:
> Hi Y'all,
>
> I have basically finished the work on my friends SX-101A receiver
> and he's
> due to pick it up tomorrow. Yesterday I aligned and calibrated it.
> It was
> off some, but not "terrible".
>
> Yesterday evening I listened to some hams on 40M for awhile, then
> tried out
> the 20 Meter band, though I fully expected the band to be "closed".
> On 20
> Meters I was hearing a number of international broadcasters
> (frequencies
> unknown) that I KNOW shouldn't be there. As the 20 Meter band was
> basically
> "closed" these broadcasters HAD to have been on a lower band, like
> 25M
> (11.5-12MC) or 31M (9.5-10MC). So, I thought that perhaps I had
> "mis-aligned" the 20 Meter band (it was the one furthest off). So,
> this
> morning I rechecked the alignment and it is GOOD, RF stages peaked
> properly
> etc and I'm hearing quite a lot of 20 Meter ham activity "on
> frequency".
>
> This one has me really puzzled as a calculation of the "Image
> frequencies
> (+/- 3.3MC) for this receiver doesn't add up to ANY International
> BCB being
> heard on 20M.
>
> Thoughts, ideas?
>
> 73 de Phil, KO6BB
> http://users.mercednet.com/beaconeer/
> Merced, Central California, 37.3N 120.48W CM97sh
>
> ***************************************************
> * RECEIVERS: *
> * #1. Homebrewed "Mitch Lee" Design *
> * #2. Hallicrafters SX-71 (1955)& VLF Converter *
> * ANTENNAS: *
> * #1. 20 Meter long "loaded" Sloper oriented E/W *
> * #2. Half Sized G5RV Inverted Vee oriented N/S *
> * #3. Roof mounted Hustler 6BTV 6 band Vertical *
> * #4. 15 Meter-band Inverted Vee oriented NE/SW *
> * *
> * Number of different NDB's heard: 974 *
> ***************************************************
>
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