My bad.
mike
At 10:46 PM 07/13/04 -0700, you wrote:
Why not look on ebay for a Maxtrac with a blown PA deck - look for
one with "low power output", or "couldn't test the TX, so it's sold as is"
If you bypass the final and jumper the driver to the output filter you'll
have a 3-4w TX - and at a good price.
And you won't need an attenuator.
Mike WA6ILQ
At 08:52 PM 7/13/04, you wrote:
I had the same thought... most Moto's are 50 ohms throughout the various stages of the PA.. not sure about the Maxtrac... but a pile of RG-58 in a paint can with chassis connectors in the lid might work... if you only use the driver stage, shouldn't be that much line... a commercial pad would be better though. Much cleaner installation.. about 9dB (assuming 3W) should get you close. Look on ebay for an attenuator..
mike
At 08:37 PM 07/13/04 -0700, you wrote:
Lots of RG-174 or Radioshack RG-58 coax makes a good pad, I just did it with a repeater here on two meters. You will have to figure the loss, which would be a lot of coax. For example to cut your power down from 40 watts to 1/2 watt you would need, and this is approximate, about 175 feet of Belden RG8216, and if using RG58 from Radioshack you would need at least 375 feet of coax. What model amplifier do you have? Make sure it is one that can be used in the 138 to 150 Mhz range.
Mathew
kbednar99 <[EMAIL PROTECTED]> wrote:
- I'm using a Motorla Maxtrac for a 2 meter remote base, currently
- running 40 watts. I have a PA from a Mastr II cont. duty base, that
- only needs .5 watt for 110 watt output. Anyone know of an easy way to
- drop the power down on the Maxtrac? These radios wont really go down
- below 10 watts, and get very flaky under that. I'm thinking about
- bypassing the final amp stage on the Maxtrac, as the 2nd stage maxes
- out at about 3 watts to drive the PA to 30 watts. Anyone done this
- before, or have any other ideas? TIA to all.
- Kevin
- K2KMB
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