Without testing with proper test gear, it's really impossible to say.

--
Nate Duehr
Sent from my iPhone

On Jun 17, 2009, at 18:41, Aisen Lopez <[email protected]> wrote:



Hello  everybody:

I'm into increasing the performance of my repeater. I've already ordered 50 Ft. of LMR-400 to replace the cheap RG-8. Yet, I wonder if there is something else I could do.

The Duplexer is pre tuned to my freq. (458.0 repeater RX / 453.0 repeater TX). The duplexer is connected to the radios (my repeater is built out of two Motorola M120's) using RG-58 jumpers of about 24 inches long. Could that be affecting performance? When I check the TX power thru the duplexer I'm getting about 10W yet the TX radio is programmed for 30W. I know that I'll loose some power with the duplexer, but seems to me that I'm loosing too much. SWR won't go below 2.1 no matter how much I adjust the antenna bays.

So, what could be done? I imagine that swapping the RG-8 for the LMR-400 will help but I still wonder if that would be enough. Any help will be greatly appreciated.

Aisen


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