[Lowfer] New Data on GPD-111

[Ed Tanton]

Thanks to copies of the two (versions of) operating manuals on the 
Scientific Atlanta GPD-111 ELF-LF Tracking Receiver, I now have a better 
description on its webpage: <http://www.qsl.net/n4xy/rcvr_vlf_gpd-111.html> 
. It  is (was?) standard equipment on Trident 'Boomers'. Freq range is 700 
Hz to 100 kHz. The UNBAL input impedance is 10,000 ohms. What a receiver!

73 Ed Tanton N4XY <n4xy@earthlink.net>

Ed Tanton N4XY
189 Pioneer Trail
Marietta, GA 30068-3466

website: http://www.n4xy.com

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LM: ARRL QCWA AMSAT & INDEXA;
SEDXC NCDXA GACW QRP-ARCI
OK-QRP QRP-L #758 K2 (FT) #00057

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