--- On Sun, 10/4/09, W3ML <[email protected]> wrote:
> From: W3ML <[email protected]> > Subject: [Repeater-Builder] Re: Radio for repeater use > To: [email protected] > Date: Sunday, October 4, 2009, 5:46 PM > Thanks to all that replied. > > This is a club repeater and I am under pressure to fixed > the de-sense. So far, everything/trick I have been > told really didn't help the de-sense until now. > > I turned up the power all the way and it appears to be a > 110 watt radio. I say appears as there are no markings to ID > what model it is. > > Anyway, I turned it back down to 55 out and the Daiwa > CN-801HP swr/wattmeter shows on the reflected side that > there is just a little bit of swr. The needle moves > just off the zero, not enough even to say that it reads > 0.1. > > So it appears that this radio, which is a GE Mastr II > mobile, doesn't like to run at the lower wattage of 10 to 20 > watts out. > > You should be able to run the mobile unit around 90 watts without any problems if it is the 110 watt unit. The very first GE Mastr ll I converted was a unit like that over 10 years ago. I did raise it off the table it was sitting on about an inch and put a muffin fan blowing from the back to the frount of the unit. One thing to look at is to see if the jumper wire from the amp to the otuput filter. If so replace it with a small flexiable piece like the shiled of a piece of small coax. That wire has a tendency to flex under heating and cooling and breaking loose. Make sure you are using double shielded coax from the receiver to the duplexer. Also for the transmitter.
