Poor reception on portions of 2m band

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  • Problem
  • Updated 3 years ago
When using the 6700 on 2m with the DEMI amplifier I find that I get great reception on part of the band and little to no reception on others. When I'm on a repeater above 146 MHz it appears that the 6700 works fine.  Below that frequency signals that are S9+ on my FT-991 cannot be heard on the 6700. This is independent of antenna selection.  When transmitting with my FT-991 I can see that signal on the 6700 but when the repeater identifies there is no signal apparent through audio or visible on the panadapter.  The repeater's signal is S9+ on the FT-991.

Rick
WC8D
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Rick - WC8D

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Posted 3 years ago

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KF4HR

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Rick - Wow, that's not good.  I'll see if I can run a comparison test this weekend between my 6700 and Kenwood TS-2000X to see if I get similar results.   
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Tim - W4TME, Customer Experience Manager

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Since there is no filtering being done by the radio, I wonder if this is an issue with the LDPA.
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Norm - W7CK

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I have the older version of the Down East Microwave 2N75 LDPA.   I've used it on 2m quite a bit and do not experience any issues with receive below 146 MHz.  I'm often on 144.200 SSB without any problems.  I have compared the reception to my IC-7100 and it is about the same.

Norm - W7CK
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Rick - WC8D

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I did a master reset and then swept the 2m band with a RF generator at -75db and all seemed to be OK.  I'm not sure what it was, but it seems to be gone now.

RIck-WC8D