[Milsurplus] Low Frequency receiver, RBL

[David I. Emery]

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."