[AMRadio] 144 Mhz. AM


Crawfish crawfish at surfmore.net
Wed Nov 3 23:31:49 EST 2004


I believe K1JCR in CT has a 2m AM repeater on up there.

Joe W4AAB
----- Original Message -----
From: <k0ng at inebraska.com>
To: Discussion of AM Radio <amradio at mailman.qth.net>; Byron Tatum
<bjtatum at ev1.net>
Cc: <AMRadio at mailman.qth.net>
Sent: Tuesday, November 02, 2004 6:44 PM
Subject: Re: [AMRadio] 144 Mhz. AM


>
> Hi Byron: 144.400 is still legal but you wont make any friends 10 KHz
down.
> Their FM receivers are lots wider than our AM receivers, in general.
> I have ground some crystals for 144.320 and 144.360 MHz ( one calling and
> one working freq.) Remember though, most AM receivers are tunable so you
can
> work "cross frequency" if you can get their attention. I too have a TV-7
> FAA Tx (had 2 and gave one to a friend).
>
> I have worked Texas many times before on CW and SSB, especially in the
> summer but we usually have a few openings in January or Feb. Let me know
if
> you hear anything or would like a schedule.  Good luck on AM.
>
> 73 DE Charlie,  K0NG  ..
>
> Quoting Byron Tatum <bjtatum at ev1.net>:
>
> > Hello-
> >     I am getting my 2 meter antenna system back up and running. One
thing I
> > have played around with is surplus FAA AM gear that can be operated on
> > 144.400 Mhz. Although I made only pre-arranged contacts in the past I
was
> > curious if there are any reports of 144 Mhz. activity in the Houston,
TX.
> > area ?
> >     I have crystalled up several different pieces of equipment on the AM
> > calling freq. of 144.400 Mhz. I have heard that this calling freq.
cannot be
> > used in some area due to interference from other modes. I guess I will
find
> > out soon but I thought I would ask.
> >     Right now I am working on a surplus FAA airband transceiver, it is
solid
> > state and crystal controlled, but appears will do nicely for 144 AM.
Hate to
> > invest in crystals I can't use! This unit is the TRX-102, a 1972 era
design
> > that has a good sensitive receiver and about 5-7 watts out.If others are
> > interested I have written down the conversion info.
> >     I do have a few nice tube-type 50 watt plate modulated AM
transmitters
> > that cover 144 Mhz easily, these are the TV-6. They have a 4X150 final
> > modulated by a pair of 6146's. These units are beautifully built with
all
> > sealed transformers, about 3' tall rackmount, about 130 lbs. I have one
set
> > up on 144.400 that easily puts out 50 watts of nice sounding AM. I
believe I
> > have 2 or 3 checked out and wrapped up in protective coverings in my
> > shop.Have a full manual for it too.Have an extra tube-type receiver
{RV-12}
> > that does fairly well when crystalled and tuned on 144 Mhz.
> >     Anyway, I would like to find some AM friends for 144 Mhz, my antenna
> > system will be high performance { pair of 18 ele. yagis at 100'} so will
have
> > 250 mile plus range.
> >     Thanks, Byron WA5THJ, located in Alvin.
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> >
>
>
>
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