• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Sharing an antenna? School me.

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#1
OK so if I have for instance two identical UHF mobile radios can I use a T-coupler and run two mobile radios off of the same UHF quarter wave antenna?
 

n9mxq

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#2
As long as neither transmits.. First time one does, the other will most likely go poof.

I wouldn't take the chance.
 
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#3
n9mxq said:
As long as neither transmits.. First time one does, the other will most likely go poof.
Yeah, you'll need a UHF duplexer, which both combines and isolates the signals so they do not interfere. Most duplexers you'll find at ham outlets are dual banders, which will not work.
 

k8mcn

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#4
k9-cop said:
OK so if I have for instance two identical UHF mobile radios can I use a T-coupler and run two mobile radios off of the same UHF quarter wave antenna?
If you don't want to use them BOTH at the same time , just use a two position antenna switch.install the switch backwards, so that you end up with a jumper from each UHF rig going in to one side and the antenna hooked into the single side----then you can switch rigs to antenna at the flip of a switch--- I do this here to operate two different HF rigs-just label the switch and make sure it is in the correct position (hooked to the rig you are transmitting with).
But beware--you must make sure you throw the switch--if not you will be transmitting in to a dead short (if you have a switch that grounds the unused terminal)
 
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