[ForSale-Swap] Re-post: FS: Rycom 3131 Frequency Selective Voltmeter

[Philip Atchley]

Hello
Do to server problems at my ISP all mail sent/received since yesterday 
evening was lost, hence the re-post.  If anyone tried to contact me during 
that time please try again.

73 de Phil  KO6BB

>Date: Wed, 15 May 2002 03:14:54 +0000
>To: forsale-swap
>From: Philip Atchley <k06bb at elite.net>
>Subject: FS: Rycom 3131 Frequency Selective Voltmeter
>
>Hello all
>Due to the ever increasing Noise in the longwave spectrum here in the 
>Mobile home park, I'm going in a somewhat different direction and am 
>thinning down my herd of receivers. (can only listen to one at a time 
>anyway)  NO, the Hallicrafters Boatanchors and DX-398 are NOT for sale.
>
>Anyway, I have a nice Rycom Model 3131 Frequency Selective 
>Voltmeter.  While actually a piece of test equipment these make good VLF 
>and Longwave Radio receivers as they tune from well BELOW 10kHz to 1600kHz 
>in 3 bands, an area of the spectrum where most receivers start to degrade 
>sharply.
>
>The unit is sensitive enough I was able to clearly copy JJY Japan on 40kHz 
>here in California with my sloper antenna and NO pre-amp, using the 
>bridging (high impedance) input. I haven't tried for the Russian VLF 
>stuff.  I have logged many Longwave NDB's (Non directional Beacons)on this 
>unit.
>
>Some specifications:
>1.  Tuning Range: 1 kHz to 1500kHz in 3 bands.  Gear driven two speed tuning.
>2.  Input Impedances: 75, 135 600 Ohms Balanced or Unbalanced, Hi 
>Impedance bridging mode.
>3.  Bandwidth:  250Hz +/- 25Hz at -3dB. (Xtal filter).  NOTE: It ONLY has 
>the 250 Hz filter, no 2500Hz filter.  Not sure if it was removed or an 
>option in this model.
>4.  Meter:  3 Inch diameter calibrated in Volts/dBm.
>5.  dBm Ranges: -80 to +20 dBm at the 3/4 scale (0dB) point.
>6.  Lowest readable signal -100dBm.
>7.  Modes:  AM/LSB/USB.
>8.  Internal 250kHz Xtal Calibrator for amplitude calibration.
>9.  Headphone output, though I find it works better if feeding an outboard 
>audio filter such as an Autek QF-1A, DSP etc.
>10.  Internal AC power supply will also charge an internal 12 Volt Nicad 
>pack (not installed).  You could run it on 12VDC for portable operation 
>(connecting to the internal battery leads).
>
>Built like a tank the heavy aluminium case shows some scratches and some 
>lettering on the front panel is rubbed partially off etc but otherwise 
>good condition.  No front cover.
>
>Includes a copy of the operation/service manual for the model 3121A, (same 
>model without the Balanced inputs).
>
>Asking $80.00 Plus UPS shipping for 17 pounds to your QTH (it weighs about 
>14 lbs), US Postal Money order or Cashiers check.
>
>73 de Phil  KO6BB
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