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NR240CA Roof Rack Mount SWR and Photo.jpg



This is a Diamond NR240CA, be careful I've seen the NR240C being sold and I don't think it's the same thing. This is a wide-band antenna using a similar design to the Comet CA-2x4SR model.

I tested the match on a roof rack mount. Note this is a 5/8 wave design and requires some kind of a ground plane to work. For whatever reason the match was way better than I had expected with that mount. Your installation could be significantly different. Note I have 13.5 feet of RG-316 coax in line with another 10 feet of RG-8X mini coax. The extra loss in the cable helps to reduce the SWR. When I tested the nearly identical CA-2x4SR, on the same mount system, the SWR match was higher. The testing was done using a RigExpert AA-1000 antenna analyzer. So on an equal testing basis the NR240CA seems to do better.  


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Misc. Radio Gear

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