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R-9 VHF Comm Weak TX or RX

If the VHF seems to constantly be weaker than expected, our first recommendation is to perform a VSWR test on the antenna in question.  Per the IFD installation documentation VSWR should be no greater than 2.0:1 at a given frequency.

                          GOOD                                                  BAD                        




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  • 06-May-2019