On 1 Apr 2005 16:09:32 -0800, "jantman"
wrote:

I'll keep this simple.

I have a mobile radio mounted in my car. It's an Icom 207H 2m Mobile. I
need to somehow (as easily, cheaply, and quickly reversible as
possible) restrict the transmit distance to something quite short (say,
between 50 and 200 feet, at the maximum). What's the best and easiest
way to do this, while still keeping something that can be easily
reversed?

Will simply running the radio on low power (5W) with no antenna do the
trick, keeping in mind that the radio is inside a metal car? Or should
I somehow shield the end of the coax and/or the body of the radio?

It will only be used to transmit in fairly short bursts, say 10 seconds
max, and at the maximum one burst per hour or two.

Thanks,

There is a strong possibility that if you operate the rig with a dead
short or open for the antenna that you will kill the finals more
quickly than you think.

Use a dummy load and see if that helps. Additionally, you may get
enough 1 watt resistors to put in parallel to make up 50 ohms at 5 or
more watts. That will work well and not risk damage to your rig.

using the dummy load inside the car will probably still allow it to
ttransmit outside for quite a ways.

Good luck
Buck
N4PGW

Buck
--
For what it's worth.