|[AMRadio] NPR, one solution for lousy radio|
amateur at ipnet.gr
Sun Nov 14 14:30:36 EST 2004
..Found it out..
----- Original Message -----
From: "CHRIS PAPAIOANNOU" <amateur at ipnet.gr>
To: <bcarling at cfl.rr.com>
Cc: "Discussion of AM Radio" <amradio at mailman.qth.net>
Sent: Sunday, November 14, 2004 9:08 PM
Subject: Re: [AMRadio] NPR, one solution for lousy radio
> 73 to all list members,
> Brian and everyone who's intersested (it's not a promotion just an info),
> there are AM and FM PLL digital transmitters in kit ham made here in SV
> land also.AM covers the AM broadcast band (512-1800Khz)with 1khz
> harmonic filtering,pll unlock,antenna output with SO239(VHF)50ohms,swr
> protection,swr/pwr meter,led for high swr,led for lock,thermal protection
> etc.Pwr outs 75,150,300 watts.
> FM covers 88-108Mhz,0-1.5 watts broadband,50khz step from LCD,PLL of
> controlled,audio frequency response 50hz-15khz,pre-emphasis(selectable
> 50,75uS of flat),stability >+/-200hz,harmonic filtering >-50dbc,spurious
> emissions>-85dbc(pcb's dimensions 13,7cmX12,2cm).I'm not sure if these
> can be seen at www.radiomagazine.com but this is not a serious problem as
> can find it out.
> ----- Original Message -----
> From: "Brian Carling" <bcarling at cfl.rr.com>
> To: "Discussion of AM Radio" <amradio at mailman.qth.net>
> Sent: Sunday, November 14, 2004 6:57 PM
> Subject: RE: [AMRadio] NPR, one solution for lousy radio
> > On 13 Nov 2004 at 21:52, Brett gazdzinski wrote:
> > > I got a real nice 1 watt synthesized transmitter with a digital
> > > frequency readout, nice stereo separation and good fidelity.
> > > With an outside antenna, it goes blocks, never tried to figure
> > > out just how far.
> > > 1 watt with a good antenna should go miles.
> > >
> > > I tried cordless headphones, the ramsey stuff, and other FM
> > > transmitter kits, and the range was lousy.
> > > I like to wander around while listening, go out back of the house and
> > > smoke,
> > > make some tea, etc (plenty of old buzzards on the air!).
> > >
> > > The transmitter was about $100.00 but its very well made, and very
> > > clean.
> > > Its not a kit, and has a very large heat sink.
> > > It has no case, just the display mounted on a circuit board,
> > > you push buttons to change frequency and other options, the back
> > > of the board holds the heat sink.
> > >
> > > There used to be a lot of the same things on ebay, I have not looked
> > > lately.
> > >
> > > A cordless mike with some sort of remote keying of the transmitter
> > > be
> > > cool,
> > > you could be out mowing the lawn and on the air...
> > >
> > > Brett
> > > N2DTS
> > Brett - is this the same thing as the DC Electronics one?
> > Or who makes it?
> > Where do we get one?
> > ______________________________________________________________
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