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Nagoya NA-771 15.6-Inch Whip VHF/UHF (144/430Mhz) Antenna

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Alstrickland55

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Will the Nagoya NA-771 15.6-Inch Whip VHF/UHF (144/430Mhz) Antenna work on a Kenwood handheld using 462 frequencies?

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wrath

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It will work but there is no guarantee of SWR or performance outside the amateur band , i have seen people brick there radio with mismatched antennas more than once .

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RFI-EMI-GUY

RFI-EMI-GUY

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I have a similar COMET BNC24 146/446 MHz antenna I intend to use on GMRS and so far the VSWR looks pretty high. I swept it and could not find resonance at either 146 or 446 to start with. I would be interested in what others find because I want a 5/8 wave whip on my Motorola PX300-S lunch box. I am prepared to trim it down, but until I can find its natural UHF resonance I hesitate.
 
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wrath

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Are you sure about the dealer you got it from?
There has been a recent wave of both counterfeit Diamond/Comet(and even Nagoya knockoffs, which is pathetic knocking off a knock off) antennas as well as European spec frequency antennas getting here , even at Dayton last year some guys got crap antennas,I have not heard what dealer or dealers ,but needless to say there are junk out there, Amazon still as late as this January was selling counterfeit Baofeng? It sounds like the punch like to a ham joke ,but its real.

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RFI-EMI-GUY

RFI-EMI-GUY

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wrath said:
Are you sure about the dealer you got it from?
There has been a recent wave of both counterfeit Diamond/Comet(and even Nagoya knockoffs, which is pathetic knocking off a knock off) antennas as well as European spec frequency antennas getting here , even at Dayton last year some guys got crap antennas,I have not heard what dealer or dealers ,but needless to say there are junk out there, Amazon still as late as this January was selling counterfeit Baofeng? It sounds like the punch like to a ham joke ,but its real.

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Click to expand...
My COMET is so old it predates the Baofeng mafia.


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wrath

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RFI-EMI-GUY said:
My COMET is so old it predates the Baofeng mafia.


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Click to expand...
Here's a laugh for you ,I still have a Diamond 77 new in the package , my super gainer broke so I got a smaller antenna as they are a ***** to fix , but in being prepared I bought a second one "just in case", that was in 03-04 somewhere haven't killed the primary so haven't needed the spare,I don't even think the dealer I bought it from is even still in business. It lives just inside one of my spare gear closets ,wondering will I ever get some action ?.

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kj6psg

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SWR on my NA-771 is quite high at GMRS (and pretty much anywhere above 453 MHz), I wouldn't use it outside 2m/70cm. I don't have the exact numbers off the VNA but I think it was around 3:1. Yes, this was a real NA-771 being tested.
 
RFI-EMI-GUY

RFI-EMI-GUY

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If the UHF response for best return loss can be determined, it can be used to calculate the fraction to cut the whip to for GMRS band. It will no longer be a "ham" antenna.

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