[amsat-bb] Re: beginner question re: uplink power

Roger Kolakowski rogerkola at aol.com
Sun Oct 19 12:30:36 PDT 2008

I think I would contact Ramsey and see what the resistor selection
limitations are, unless you have a schematic and can determine it from the

Sure enough, if you set it for 10 watts you are going to, some day, put 50
or 100 watts through it in error and I'm assuming if you kill the remote
switching it defaults to receive and therefore doesn't switch the preamp out
resulting in a trip up the tower to fix 2 things.

If you set it for 100 watts, you will someday want to run less and again it
won't key. Same trip up the tower.

Hard wiring, as has been suggested, is your safest choice. As the switch has
the relay in it, maybe Ramsey can tell you where to tap in to directly
switch the sensor.

Nice choice of rig though ;-)


----- Original Message -----
From: "corner5" <corner5 at comcast.net>
To: "Roger Kolakowski" <rogerkola at aol.com>
Cc: <amsat-bb at amsat.org>
Sent: Sunday, October 19, 2008 1:42 PM
Subject: [amsat-bb] Re: beginner question re: uplink power

> Hi Roger,
> Thanks very much for the reply.  I did forget to mention that I will be
> using my Kenwood TS2000 for this purpose.  This allows me the full 0-100
> watts choice for 2m, and 0-50 watts choice for 70cm.  The preamps are
> only for receive.  The RF switches are between the rig and the preamps
> and will bypass the preamps upon transmit.  I can start out my RF out
> anywhere within the above stated ranges.
> Any further thoughts?
> .paul

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