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Old 12-02-2018, 6:24 PM
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Default DMR hotspot and APRS on one antenna

I was thinking of installing a 600mw UHF DMR hotspot in my car and also A 10W VHF APRS tracker on my car (my mobile doesn’t have native APRS functionality nor do I want to tie it up with APRS). Is it possible to have them share an dual band antenna mounted on my trunk using a diplexer?
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Old 12-02-2018, 8:37 PM
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Yes.

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Originally Posted by JeffDS3 View Post
I was thinking of installing a 600mw UHF DMR hotspot in my car and also A 10W VHF APRS tracker on my car (my mobile doesn’t have native APRS functionality nor do I want to tie it up with APRS). Is it possible to have them share an dual band antenna mounted on my trunk using a diplexer?
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Old 12-02-2018, 10:26 PM
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Yes.
And they can talk at the same time without interfering with each other?
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Old 12-02-2018, 10:46 PM
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And they can talk at the same time without interfering with each other?
Real radios can do that with no problem at all. I don't know what quality of receiver your tracker and hotspot have.
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Old 12-06-2018, 6:41 PM
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Real radios can do that with no problem at all. I don't know what quality of receiver your tracker and hotspot have.
I was more concerned of RF energy feeding back through the antenna feeds
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Old 12-06-2018, 9:06 PM
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Use the proper diplexer and there won’t be any “RF Energy Feedback”
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