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New radio so new antenna??

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Has more money than sense
Premium Subscriber
Jun 5, 2016
Kings County, CA
Ok, so with my stimulus money I bought myself a AT-D578UVIII PRO radio for my car. It’s triband (2m/1.25m/70cm). I currently have a Larsen dual band antenna on the top of my car I would like to keep using. I’m debating my options on what to do and would like your thoughts.

The options:

1. Get a triplexer and a diplexer. Connect the radio to the triplexer, then connect the 2m & 70cm legs together using a diplexer that leads to the dual band antenna. Throw a 1.25m antenna on the trunk and connect it to the third leg of the triplexer.

2. Replace the dual band antenna with a triband antenna.

3. Just use the dual band antenna with a higher SWR (will explain below).

Things to keep in mind: the 1.25m part of the radio is only 5-10 watts AND there isn’t much use of it in my area. I will almost exclusively be using 2m/70cm and so I thought to use 1.25m as a “tactical” band when traveling to talk to others in my group.

What are your thoughts?
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