|[AMRadio] AMers all "old-timers"?|
km1h at jeremy.mv.com
Thu Nov 22 16:47:59 EST 2007
My Meissner EX Signal Shifter has the NBFM module and I made a few tests on
160 with it last month. One op was running a CE 10B and another had a
Supreme or some other fairly obscure brand. No hassles from anybody but we
were all local and low power. All CE rigs had NBFM as a standard feature,
Ive owned them all from the 10A to 200V.
Back in the 50's NBFM was popular with the commuter mobile crowd on LINY.
----- Original Message -----
From: "Ellen Rugowski" <ellenjoanne2003 at sbcglobal.net>
To: "Discussion of AM Radio in the Amateur Service"
<amradio at mailman.qth.net>
Sent: Thursday, November 22, 2007 12:21 PM
Subject: Re: [AMRadio] AMers all "old-timers"?
> ----- Original Message -----
> From: "Mike Sawyer" <w3slk at hughes.net>
> To: "Discussion of AM Radio in the Amateur Service"
> <amradio at mailman.qth.net>
> Sent: Thursday, November 22, 2007 10:48 AM
> Subject: Re: [AMRadio] AMers all "old-timers"?
>> Me and KN0R, (now the fine call, KK4AM) got on 160M and ran NBFM at about
>> 1500watts. Naturally the slopbucketeers threw a fit. They tried to
>> us that FM was illegal down there. I kindly told them to check out what
>> rules say and I just happened to have a copy of Part 97 that I recited to
>> him. By saying this I am admiting to using a riceburner. But it seldom
> Hi Mike, was this in the late 80s or early 90s? I remember listening to
> somebody comment back then, that there was a group of hams that was doing
> on 160. BTW, if I remember right, you can only do FM (as NBFM), below
> Mc, if the bandwidth isn't greater than the bandwidth of an AM signal, and
> the modulation index isn't greater than 1. If I remember right, if your
> ricebox was like my FT-897D I sold in July, the FM bandwidth was probably,
> the standard bandwidth for 10m FM & above - 15 kc. Did you change the
> deviation of your rig to comply? Only a very few rigs were made in the
> 40s & early 50s to the NBFM, 6 kc standard - Collins made an NBFM adapter
> for their rigs in the early 50s; the Hallicrafters HT-19 comes stock with
> NBFM capability, and I think the Sonar Company made an NBFM exciter. CQ
> Magazine's, Radio Classics column talked about 6 kc NBFM in the July or
> August issue.
> Ellen - AF9J
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