[Johnson] RE: [AMRadio] Looking for antenna multi-coupler

[Dave Maples]

All: I used a spectrum analyzer and tracking generator to sweep a 2:1 TV
splitter down below the specified 5 MHz minimum.  I agree--they are fine
with minimal additional insertion loss above the norm even down in the AM
broadcast band.  If anyone's interested in the pictures I can post them in a
few days (extra-heavy work schedule right now).

Dave WB4FUR

-----Original Message-----
From: johnson-bounces at mailman.qth.net
[mailto:johnson-bounces at mailman.qth.net]On Behalf Of Gary Schafer
Sent: Friday, January 19, 2007 2:40 PM
To: 'Discussion of AM Radio in the Amateur Service'
Cc: r-390 at mailman.qth.net; Johnson at mailman.qth.net
Subject: [Johnson] RE: [AMRadio] Looking for antenna multi-coupler


Use TV splitters. They have excellent isolation between ports. You won't
notice the small loss. Don't worry about them being 75 ohms as your
receivers are not 50 ohms anyway. No preamp needed unless you split many
times. They are cheap and so are the connectors.

73
Gary  K4FMX

> -----Original Message-----
> From: amradio-bounces at mailman.qth.net [mailto:amradio-
> bounces at mailman.qth.net] On Behalf Of John Lawson
> Sent: Friday, January 19, 2007 2:09 PM
> To: amradio at mailman.qth.net
> Cc: r-390 at mailman.qth.net; Johnson at mailman.qth.net
> Subject: [AMRadio] Looking for antenna multi-coupler
>
>
>
> Have four, possibly five boatanchor recievers to feed from the same
> antenna port - looking for a 50-ohm multi-coupler to accomplish this -
> right now everything is BNC-teed together and of course it's affecting
> Things...
>
>
>    Tube or solid-state, no matter - although a tube-operated device would
> not interfere with the AM Boatanchor Metaphor of my current station.
> Connectors can be N, BNC, SO-239, even SMA.
>
>
>   PLEASE REPLY DIRECT TO ME, off-list to: jpl15 at panix.com with asking
> price, including pack/ship, to Northern Nevada (Carson City) zip 89706.
>
>
>
>     Thanks!
>
>
> Cheers
>
> John
> KB6SCO
> DM09fg
>
> PS: Naturally - I just sold the nice one I had lying around, last year at
> a swap meet....  D'OH!
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