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Mobile Amplifier

Feb 20th 2015, 19:43


Joined: Dec 5th 2011, 18:30
Total Topics: 0
Total Posts: 0
Does any one know how to connect a 2 meter amplifier to a dual band mobile radio. I have tried it using a duplexer and cannot get it to seperate the rf out from the 440 side.
Feb 21st 2015, 06:51


Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
The way I have read your post sounds like you are using separate antennas for 2 m and 70 cm and you only have a RF amplifier for 2 m. I don't believe you can accomplish what you want to do using a Diamond Duplexer unless it is only a 2 Port In / Out and 1 Port for the In / Out or Common. You haven't specified what type of transceiver & model number, whether it has 1 or 2 Antenna Ports and mind you the little so called Duplexers have insertion Losses to deal with and the coaxial feedline between the transceiver and the duplexer may be of an odd length also adding to your problem causing a high VSWR. How about more information as to the individual pieces of radio equipment and the physical length of your coax cable between the transceiver and the duplexer.


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