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Path: utzoo!watmath!clyde!cbosgd!ihnp4!ihu1h!parnass
From: parnass@ihu1h.UUCP (Bob Parnass, AJ9S)
Newsgroups: net.ham-radio
Subject: survey con't: old Regency TMR, WHAMO-10 scanners
Message-ID: <744@ihu1h.UUCP>
Date: Sun, 19-Jan-86 12:13:00 EST
Article-I.D.: ihu1h.744
Posted: Sun Jan 19 12:13:00 1986
Date-Received: Tue, 21-Jan-86 01:19:00 EST
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 30

x
		    Regency (continued)

TMR series:  First generation crystal scanners.	 Come in all
varieties  of  band  coverage.	Models with both UHF and VHF
bands must use separate	antennas for each band (disadvantage
in  mobile  installations, but can be overcome by connecting
two front ends via a capacitor).  Easy	to  crystal:   Radio
Shack  crystals	 work  well.  TMRs usually $2 and up ad	ham-
fests, often in	poor condition.	 Don't pay  more  than	$50,
even  if  mint.	  Front	ends must be tuned for selected	por-
tions within the bands for best	sensitivity.  Wide IF selec-
tivity troublesome in urban/suburban areas.  Primitive digi-
tal scanning circuitry may become  confused  at	 times,	 but
power  off/on  restores	 sanity.  Not all that bad a deal if
cheap.	Replaced by Regency ACT	units.

WHAMO-10:  Regency's first synthesized scanner.	  Discontin-
ued  long ago.	Appearance more	like a crystal scanner,	with
a single LED per channel.  User	has to break off teeth on  a
metal  'comb'  for  each  channel  according to	a code book.
External frequency control unit	DFS-5K	optional.   UHF	 VCO
reference  oscillator  drifts on some units.  Soldered sheet
metal shields around some circuitry make access	to some	com-
ponents	 difficult for servicing.  Comb	sockets	prone to bad
connections after moderate use.

-- 
===============================================================================
Bob Parnass,  Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414