Re: [MV] Working radios in MV's

From: MV Don Low (mvDonLow@hotmail.com)
Date: Sat Oct 12 2002 - 20:30:53 PDT

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Exactly ! Fortunately, the regs don't prohibit wideband FM
N0UBI

----- Original Message -----
From: "Patrick Jankowiak" <eccm@swbell.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Saturday, October 12, 2002 1:26 AM
Subject: Re: [MV] Working radios in MV's

> I have considered it. Lowering the mic gain would do for TX.
>
> For RX, the audio gain could be increased to compensate for less output
from the discriminator. It is a more complicated problem overall, as I think
the SNR would be lowered due to the broad bandwidth
> of the IF stages. 5KHz of signal in a 15KHz window. A NB filter could be
added, but at what oddball frequency? (I can look them up, but it's probably
moot)
>
> Fortunately, the regs don't prohibit wideband FM as far as I can find, and
others have looked up, they just discourage it's unnecessary use. In the
case of a PRC-77 or RT246, I am using the minimum
> possible bandwidth, for that rig. I don't want to chop up a $300 or $450
antique radio either.
>
> I suggest that avoidance of interference with other stations would be the
thing to do. The repeater handbook would be a good start for convoys, but I
realize that the DX operators are out there too.
>
>
> Buzzard wrote:
> >
> > What about adjusting the radios to function within the regs. This is
> > pretty basic stuff.
> >
> > Any ham who can't or won't doesn't deserve their ticket!
> >
> > -=-
> > WM1W
> > -=-
> >
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>

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