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All this talk of modulation is nice, however, I doubt it is the cause of the op's issue.

Antennas are dumb, they try and transmit whatever signal they get. The only way I can see modulation being related to the ops original post is if it is causing out of band emissions, and the one antenna that is having the issue is more sensitive to and rejecting more of these out of band signals. I'm not saying it is impossible, but I don't think it's the likely cause here either.

How are you determining that there is less output when this one antenna is hooked up?

Have you tried another radio with the same antennas on the same mount? I'm assuming you are using the same mount for the antennas, is this correct?

Is there anything else in line other than the SWR meter?

What kind of coax is being used, RG-58? And how are the ends connected, soldered with amphenol connectors or crimped?

Aside from swapping out the antennas have you done any troubleshooting steps as of yet?

The DB

<blockquote data-quote="The DB" data-source="post: 452862" data-attributes="member: 21346">All this talk of modulation is nice, however, I doubt it is the cause of the op&#039;s issue.Antennas are dumb, they try and transmit whatever signal they get.&nbsp; The only way I can see modulation being related to the ops original post is if it is causing out of band emissions, and the one antenna that is having the issue is more sensitive to and rejecting more of these out of band signals.&nbsp; I&#039;m not saying it is impossible, but I don&#039;t think it&#039;s the likely cause here either.How are you determining that there is less output when this one antenna is hooked up?Have you tried another radio with the same antennas on the same mount?&nbsp; I&#039;m assuming you are using the same mount for the antennas, is this correct?Is there anything else in line other than the SWR meter?What kind of coax is being used, RG-58?&nbsp; And how are the ends connected, soldered with amphenol connectors or crimped?Aside from swapping out the antennas have you done any troubleshooting steps as of yet?<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 452862, member: 21346"] All this talk of modulation is nice, however, I doubt it is the cause of the op's issue. Antennas are dumb, they try and transmit whatever signal they get. The only way I can see modulation being related to the ops original post is if it is causing out of band emissions, and the one antenna that is having the issue is more sensitive to and rejecting more of these out of band signals. I'm not saying it is impossible, but I don't think it's the likely cause here either. How are you determining that there is less output when this one antenna is hooked up? Have you tried another radio with the same antennas on the same mount? I'm assuming you are using the same mount for the antennas, is this correct? Is there anything else in line other than the SWR meter? What kind of coax is being used, RG-58? And how are the ends connected, soldered with amphenol connectors or crimped? Aside from swapping out the antennas have you done any troubleshooting steps as of yet? [URL="http://hittman.us"][COLOR="Black"]The DB[/COLOR][/URL] [/QUOTE]

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