[Milsurplus] Low Frequency receiver, RBL

[Glen Zook via Milsurplus]

The Rycom 6010 Selective Voltmeter is an excellent VLF and LF receiver that covers from below 20 Hz to above 200 kHz.  It has both AM and SSB as well as a digital readout.  

There are Internet sites that list VLF stations:

http://www.vlf.it/itulist/itulist.htm


http://www.smeter.net/stations/vlf-stations.php


Years ago, the National Bureau of Standards operated WWVL on 20.0 kHz.  However, that station has been inactive for decades having been replaced with WWVB on 60.0 kHz.
 
Glen, K9STH 

Website:  http://k9sth.net


On Monday, September 1, 2014 7:35 PM, David I. Emery <die at dieconsulting.com> wrote:
 


On Mon, Sep 01, 2014 at 12:27:36PM -0400, Nick England wrote:
> I think most all USN gear went no lower than 14kc (AN/SRR-11, AN/FRR-21,
> AN/BRR-3, AN/WRR-3, R-389/URR)
> To go lower (1kc or less) the Rycom R-1655/URR rcvr (basically a Rycom
> frequency selective voltmeter) and HP 302 and 310 wave analyzers do a
> pretty good job too.
> The HP units seem to go really cheap at hamfests ($20-50)

    Of course if one wants to get a bit more modern (1970s) the
HP-3586B/C Selective voltmeters are very popular... and go pretty much
to 100 Hz (and 32 MHz top end) with synthesized tuning in 0.1 Hz
steps and a tracking generator output signal. Many have high grade
HP 10 Mhz OCXOs installed with really good stability and accuracy too

    Might be a bit more expensive at hamfests, but are quite
common.  Documentation widely available as .pdfs as are parts units.



-- 
  Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston, Mass 02493
"An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
celebration of what could have been, but wasn't and is not to be now either."

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