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From: parnass@ihu1h.UUCP (Bob Parnass, AJ9S)
Newsgroups: net.ham-radio
Subject: Spread Spectrum Emission in the 160-170 MHz Band
Message-ID: <509@ihu1h.UUCP>
Date: Thu, 14-Mar-85 21:44:35 EST
Article-I.D.: ihu1h.509
Posted: Thu Mar 14 21:44:35 1985
Date-Received: Sat, 16-Mar-85 00:58:56 EST
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 16

x
	 SPREAD	SPECTRUM FOUND IN THE 160 -170 MHz BAND


     Who is using frequency hopping, spread  spectrum  emis-
     sion in the 10 MHz	between	160 - 170 MHz?

     I've monitored  daylight  transmissions  of  this	type
     using  an	HP8558B	spectrum analyzer and outdoor ground
     plane.  The signal	strength on each discrete  frequency
     is	 constant,  about  10 db stronger than the Chicago's
     NOAA Weather Radio	station	on 162.55 MHz (35 miles	east
     of	me, atop Sears Tower).
-- 
===============================================================================
Bob Parnass,  Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414