[AMRadio] 144 Mhz. AM


peter A Markavage manualman at juno.com
Thu Nov 4 02:25:52 EST 2004


It's 145.25 and the call is K1JCL. It's always fun to operate 2 meter AM
during some of the VHF contests. Drives the SSB guys crazy trying to tune
you in.

Pete, wa2cwa

On Wed, 3 Nov 2004 22:31:49 -0600 "Crawfish" <crawfish at surfmore.net>
writes:
> 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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