[Repeater-Builder] Re: Diversity FM reception

2009-08-27 Thread kb1req
> > My memory is failing me, but I think it was Volvo that was putting two > embedded-in-glass antennas with diversity-receive radios in their cars a few > years ago (this was FM obviously). I heard that they worked extremely well. > Can anyone confirm? > > > ---

Re: [Repeater-Builder] Re: Diversity FM reception

2009-08-27 Thread Chuck Kelsey
Except engineering gets to screw up things under the hood - so the vehicle needs to be half torn apart to change a battery or the plugs ;-) Chuck - Original Message - From: "Jeff DePolo" To: Sent: Thursday, August 27, 2009 3:32 PM Subject: RE: [Repeater-Builder] Re: Di

RE: [Repeater-Builder] Re: Diversity FM reception

2009-08-27 Thread Jeff DePolo
> The late 60s/70s brought along ignorant antenna designs, like the > windshield-integrated dipole and the 45-degree swept-back dipole. Now > we've got even more ignorant designs like the 45 degree stubby on the > roof of cars (06 or newer Hyundai Santa Fe is a good example of this > mistake),

Re: [Repeater-Builder] Re: Diversity FM reception

2009-08-27 Thread Jacob Suter
I think the larger problem is a lack of standardization in receive antenna systems for broadcast FM. The late 60s/70s brought along ignorant antenna designs, like the windshield-integrated dipole and the 45-degree swept-back dipole. Now we've got even more ignorant designs like the 45 degree s

[Repeater-Builder] Re: Diversity FM reception

2009-08-26 Thread Al Wolfe
Back in the late 60's or early 70's we tried this on one of the stations I was involved with. CP can work with separate antennas but only if the vertical and horizontal elements are in the same vertical axis and fed in quadrature or 90 degrees out of phase. And the SWR needed to be absolutel

[Repeater-Builder] Re: Diversity FM reception

2009-08-21 Thread larynl2
By default, a voting remote receiver system does that. Two of our remote receivers for our 2M repeater happen to be about 14 miles apart. I can hear the link transmitters from those sites and will often switch between the two to compare. On a fixed-station user maybe more than 50-60 miles a