[Milsurplus] Fwd: Re: [ARC5] "What's Old is New..."

Tue Aug 8 13:34:09 EDT 2017

Just a guess but perhaps the "qualified people" just read the KWM-2A operator's manual?
Jim

--------------------------------------------
On Tue, 8/8/17, Ray Fantini <RAFANTINI at salisbury.edu> wrote:

 Subject: Re: [Milsurplus] Fwd: Re:  [ARC5] "What's Old is New..."
 To: "Peter Gottlieb" <kb2vtl at gmail.com>, "George Babits" <gbabits at custertel.net>
 Cc: "Milsurplus at mailman.qth.net" <Milsurplus at mailman.qth.net>
 Date: Tuesday, August 8, 2017, 12:23 PM

 Where do you suppose they found
 people qualified in how to tune a KWM-2, or how to interpret
 what frequency you're on or select the right crystal for
 the frequency segment you want?  Almost every HF radio
 built in the last thirty years is direct frequency entry
 with no tuning or any other such controls. Would assume
 everyone who has experience using such radios has retired
 long ago. Perhaps maybe in National Guard units or Reserve
 units?

 Ray F/KA3EKH

 -----Original Message-----
 From: milsurplus-bounces at mailman.qth.net
 [mailto:milsurplus-bounces at mailman.qth.net]
 On Behalf Of Peter Gottlieb
 Sent: Tuesday,
 August 08, 2017 1:05 PM
 To: George Babits
 <gbabits at custertel.net>
 Cc: Milsurplus at mailman.qth.net
 Subject: Re: [Milsurplus] Fwd: Re: [ARC5]
 "What's Old is New..."

 The GRC-215 HF packset is designed to survive
 EMP and uses gas discharge tubes among other things. 

 Peter

 > On Aug 8, 2017, at 12:51
 PM, George Babits <gbabits at custertel.net>
 wrote:
 > 
 > If you
 don't think dust during a dust storm carries a lot of
 static electricity, drive through a howling dust storm
 sometime with your AM radio on.  It is just like being on
 the receiving of a pending lightning strike. That's why
 I have one of those gas discharge lightning aresters ahead
 of my one HF solid state rig which is in my Land Rover. 
 Being a glow in the dark radio person I have no idea how the
 solid state rigs can be protected, but I would think theyre
 is a way.
 > 
 > 73,
 > George
 > W7HDL
 > 
 > 
 > ----- Original Message ----- From:
 "Bruce Gentry" <ka2ivy at verizon.net>
 > To: <Milsurplus at mailman.qth.net>
 > Sent: Tuesday, August 08, 2017 10:13 AM
 > Subject: [Milsurplus] Fwd: Re: [ARC5]
 "What's Old is New..."
 >

 > 
 >> 
 >> 
 >> What 
 solution was needed beyond an RF choke across the receiver

 >> input and perhaps a couple
 clamping diodes on the gate of the first 
 >> RF amplifier?  Was the damage
 actually caused by static or in 
 >>
 conjunction with transmitters being operated nearby?
 >> 
 >>      
 Bruce Gentry KA2IVY
 >> 
 >> 
 >>> On
 8/8/17 11:06 AM, Glen Zook via Milsurplus wrote:
 >>> The Harris SSB transceivers were
 having the receiver "front ends"
 >>> damaged by the effect of sand
 blowing across the HF antennas.  Until 
 >>> a solution was found, quite a
 number of Collins KWM-2A transceivers 
 >>> were employed to replace the
 Harris equipment.
 >>> 
 >>> 
 >>>
 Fortunately, there were around 100 KWM-2A transceivers
 stored in a 
 >>> warehouse and,
 again fortunately, someone remembered that these 
 >>> units were available.  A couple
 of retired Collins Radio Company 
 >>> employees were "drafted"
 to "check out" the equipment before it was 
 >>> airlifted to the Gulf States.  I
 have been led to believe that one 
 >>> of the former Collins employees
 went along with the equipment to 
 >>> insure that it worked after
 deployment and to teach the military 
 >>> personnel how to operate the
 KWM-2A units.
 >>> 
 >>> Glen, K9STH
 >>> 
 >>>
 Website: http://k9sth.net
 >>> 
 >>> 
 >>>
 --------------------------------------------------------------------
 >>> ----
 >>>
 *From:* Jay Coward via ARC5 <arc5 at mailman.qth.net>
 >>> *To:* arc5 at ix.netcom.com;
 milsurplus at mailman.qth.net;

 >>> arc5 at mailman.qth.net
 >>> *Sent:* Tuesday, August 8, 2017
 9:33 AM
 >>> *Subject:* Re: [ARC5]
 "What's Old is New..."
 >>> 
 >>>
 Wasn't there a call for R-390A's during the Gulf War
 because comms 
 >>> were getting
 fried by high levels of atmospheric static discharge? 
 >>> Or is that urban or sub-urban
 legend?
 >>> Jay KE6PPF
 >>> 
 >>> 
 >>> 
 >>>
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 >> 
 >> 
 >> 
 > 
 > 
 >
 ----------------------------------------------------------------------
 > ----------
 > 
 > 
 >>
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