question about feeding a halo antenna

[mr_fx]

Now I know that NORMALLY when we feed an HALO antenna we dump the coax shield to the center of the HALO and the coax center conductor goes to a gamma match that goes to one side or the other...

HOWEVER when my friends and I built our 2m HALOs last year we fed them with out a gamma mach and just tapped the center conductor of the coax until we found a nice low reactance and a low SWR, ended up being 1.0 SWR and a 3 reactance

ANY reason I should not feed a HALo this way? Does it mess with the pattern? does it cause radiation on the on the feed line, ect???

 

[Captain Kilowatt]

The tap point on a gamma match determines the radiation resistance or R value if you eill. The tube the gamma arm slides in forms a variable capacitor that tunes out the inductance cause by the gamma arm. If you already have a good match as it is I see no reason to change it. At least now it is DC grounded.

 

[mr_fx]

The tap point on a gamma match determines the radiation resistance or R value if you eill. The tube the gamma arm slides in forms a variable capacitor that tunes out the inductance cause by the gamma arm. If you already have a good match as it is I see no reason to change it. At least now it is DC grounded.

I kinda thought so... well maybe I will try tuning the 6m halo that way too... it worked great on my 2m halos