RX antenna port isolation in TX

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  • Updated 2 years ago
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Hi does the Flex 6000 series ground the RX antenna on TX, or do I need to use a front end saver device??

something along the lines of this ??

http://www.qsl.net/wy3a/Front-End-Saver.htm

Thanks
Trevor
EI2GLB 
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trevor dunne

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Posted 2 years ago

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Steve - N5AC, VP Engineering / CTO

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Official Response
In general there is 40-50dB isolation between ANT1 and ANT2 and >90dB between ANT1/2 and RX A, RX B or XVTR.  This is, then, added to the antenna isolation you have at your site.  If you have concerns about this, one of the good ways to test is to set your radio for 1W and then try combinations and measure what you see in the panadapter.  The radio is calibrated at 1W so you should be able to calculate isolation and extrapolate without any concerns.  There is also a worksheet to help you determine if you need more isolation here: FLEX-6000 FDX Power Calculation Worksheet