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Does anyone have a Comet GP9NC? And the capability of posting a VNA sweep of the VHF side?


SvenMarbles

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I'm eyeing a GP9NC. I currently have an antenna for GMRS and a separate one for MURS. I'd like to replace this arrangement with GP9, but the VHF side is advertised at 153-157. I need to see if it would be serviceable at 152-ish mhz. Tech literature online for the LMR version of this antenna is sparse. Can anyone help?

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2 hours ago, WRXP381 said:

A family member had a tree fall on his 712efc and they are back ordered so he got a 9nc. We put it up Saturday.  It works great. 1.2 on gmrs and 1.4 on murs.  Sounds great. He used to get 100 or so miles from the 712 now he gets over 150 miles to a friends house on gmrs simplex with a 50w radio.  We tested the murs side to 25miles on my way home before I went behind a hill.  Worked great 

Ok thanks for the report. The thing with MURS is that there’s a bit of a frequency split between some of the low channels and the higher channels. My neighborhood channel happens to be 151.94. So while those 154 channels fit well into spec for the GP9, the 152ish ones are likely to be on the upward swing of that dip. I’ll be satisfied with something 1.5 to 1.8 even, because I’ll be up a lot higher and fed with my LMR-400 line..
 

I looked at the GP6 as well, but I figure if I’m going to go to the trouble of taking down my mast and re working everything I might as well just spend the little bit more money and get the daddy antenna and be finished with it. 
 

 

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1 hour ago, SvenMarbles said:

I'm eyeing a GP9NC. I currently have an antenna for GMRS and a separate one for MURS. I'd like to replace this arrangement with GP9, but the VHF side is advertised at 153-157. I need to see if it would be serviceable at 152-ish mhz. Tech literature online for the LMR version of this antenna is sparse. Can anyone help?

A family member had a tree fall on his 712efc and they are back ordered so he got a 9nc. We put it up Saturday.  It works great. 1.2 on gmrs and 1.4 on murs.  Sounds great. He used to get 100 or so miles from the 712 now he gets over 150 miles to a friends house on gmrs simplex with a 50w radio.  We tested the murs side to 25miles on my way home before I went behind a hill.  Worked great 

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I have a 712efc and recently got a gp6. It is a nice antenna as well but I do agree if you can swing the 9nc it’s going to do a MUCH better job with the 12db gain.  When we tested it on y way home on murs it was in murs 1.  151.820 and that’s where the 1.4swr was for us    It seamednlike it’s going to to a great job for him and get him about 30% more milage. 

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9 hours ago, WRXP381 said:

I have a 712efc and recently got a gp6. It is a nice antenna as well but I do agree if you can swing the 9nc it’s going to do a MUCH better job with the 12db gain.  When we tested it on y way home on murs it was in murs 1.  151.820 and that’s where the 1.4swr was for us    It seamednlike it’s going to to a great job for him and get him about 30% more milage. 

Ok awesome! 1.4 on the low MURS channels is perfectly fine!

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