[VHFcontesting] Transmit Attenuator

[Tom Carney]

An excellent idea Ron.  Here is a link to a useful web site to do the
calculations.  Looks like about 74 ft of RG-174 will do the trick.

  http://www.ocarc.ca/coax.htm

73  Tom KE6FI

----- Original Message -----
From: "Rogers, Ron" <RR124640 at Exchange.AtlantaGA.NCR.com>
To: "'Rick Stoneking'" <w2rds at arrl.net>; <vhfcontesting at contesting.com>
Sent: Tuesday, September 02, 2003 7:25 AM
Subject: RE: [VHFcontesting] Transmit Attenuator


> Calculate a length of RG-174 or RG-58 based on it's rated loss at 144 Mhz.
> Install BNC connectors and coil it up. Makes a cheap power attenuator.
> Verify the loss by measuring power output at the other end into 50 Ohm
load.
> Have done this for many a transverter and for reduced drive into high gain
> amplifiers for repeater service.
>
> Ron Rogers
> -WB8ERB-
>
>
> -----Original Message-----
> From: Rick Stoneking [mailto:w2rds at arrl.net]
> Sent: Tuesday, September 02, 2003 10:13 AM
> To: vhfcontesting at contesting.com
> Subject: [VHFcontesting] Transmit Attenuator
>
>
> I need to attenuate a 12W output (144MHz) down to 2W to drive a 903MHz
> transverter.  The radio's ALC circuit does not appear to be working so I
am
> trying to find out if there is a something I can buy or build to attenuate
> the signal.  Does anyone have any experience/suggestions?
>
> Thanks,
> Rick
> W2RDS
>