[Mobile-Portable] Mobile Antenna on Truck

[Jim Miller]

I should have been more clear, I haven't done any testing on radiation
efficiency and what you say may be true.  I am happy with the operation and
wider bandwidth on 75.  The bandwidth is acceptable to me on bands above 40
with the standard resonators.  The only "super" I used was for 75.  40 is
also narrow but never got around to getting super for 40.

73, de Jim KG0KP

----- Original Message ----- 
From: "Art Clemons" <n8blk at aol.com>
To: "Mobile-Portable Reflector" <mobile-portable at mailman.qth.net>
Sent: Tuesday, July 05, 2005 9:58 AM
Subject: Re: [Mobile-Portable] Mobile Antenna on Truck


> KG0KP:
> > I have found the same thing.  No problems with the super resonators AND
they
> > have about double the bandwidth without retuning, a major improvement on
75
> > meters.
>
> Isn't the "increased" bandwidth a good indication that there are more
> losses in the antenna?  The less loss, the more likely the SWR bandwidth
> is to be very narrow on 75 meters.  I can't think of any way of winding
> a slightly larger coil with larger wire  that will be more efficient
> than one spaced slightly better.
> ----
> Your Moderator: Dick Flanagan K7VC, mobile-portable-owner at mailman.qth.net