[RFI] RFI location finders

[David Cole]

Hi,
You are talking about an Ultrasonic rx used to listen for sparks...
See: http://nk7z.net/ultrasonic-listening-device/
for a review of one...

-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Mon, 2014-05-26 at 13:01 -0600, W0MU Mike Fatchett wrote:
> http://www.nationalrf.com/type_hfdf_vector.htm.
> 
> This is one option.  What are the others?
> 
> I recall reading about a dish type that is more directional.
> 
> W0MU
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