|[AMRadio] Re: SWL'ers and AM|
Mark Cobbeldick [KB4CVN]
kb4cvn at yahoo.com
Tue Sep 20 22:00:17 EDT 2005
Very good point about the SWL's listening to AM phone ham
transmissions. I was one...
Back in the early 1960's, I wanted to listen to 2 MHz marine radio
traffic. Not having enough funds to purchase a multi-band radio, I
found an old tube AM Broadcast receiver, and modified it to listen to
the 2000 to 3000 kHz band. A couple of hundred feet of wire up in some
pine trees and a ground on our well casing pipe, I was in business!
There was a bit of lower overlap below 2000 kHz. (As a kid, I did not
even realize that there was ham band down there.) But was thrilled to
hear ham QSO's on 160 meters.
This lead to an interest in electronics at a tender age. (I did not
get my novice ticket until I got out of the army, and returned home to
Miami.) Now I work for a large two-way radio manufacturer in Virginia
as a technical support engineer. (AKA: a cross between Mr. Goodwrench
and Dr. Phil!)
All the two-way stuff now is basically a computer with a dsp board and
an antenna jack! :o\
The other day, I got several 'newly minted' 20'ish engineers VERY
stirred-up after working for hours on a tricky problem. I told them:
"IF WE HAD JUST STAYED WITH VACUUM TUBES, AND AM MODULATION, WE WOULD
NOT BE IN THIS MESS!"
They were not amused...
After working on this newer stuff all day long, I sure don't want to
look at it when home. My ham YL agrees. So I tinker with older gear.
Easier to work on. Plus, SSB was always too darn hard on the ol ears.
I now convert older AM Phone 2-3 MHz marine radios over to 160 & 75
meters. Four xtal controlled channels, and I am ready to roll.
Mark Cobbeldick, KB4CVN (Ex: C6AMC)
----- Original Message -----
From: "Bob Bruhns" <bbuhns at erols.com>
To: <amradio at mailman.qth.net>
Sent: Sunday, September 18, 2005 1:10 PM
Subject: Re: [AMRadio] The zeal to eliminate AM mode on the amateur
SWLs would tune the bands, but sidebanders sounded like Donald Duck, so
the AMers were the ones the SWLs listened to. The control freaks sure
didn't like that!
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