[Antennas] Stacking experience of yagis

Thu Feb 10 02:28:09 EST 2005

Hi,
I want to hear from experts out there how to stack two multi monobander
yagis. 
For instance like the Force12 model 5BA which I intend to stack.
Specifically,
1) My highest antenna would sit at 90 ft. What would be optimum spacing
when you have both 10,12,15,17 & 20 meters in one antenna ?
2) A multi monobander like the Force12 model 5BA have three feedlines
going to it. Hardware configuration would dictate a stack match unit for
each three feedline. Are there any other easier way to do it, to
minimize hardware ?
3) What difference would I typically see on signal variations using such
two antennas in the various phasing modes ?
Henrik
OZ1ING
-----Original Message-----
From: antennas-bounces at mailman.qth.net
[mailto:antennas-bounces at mailman.qth.net] On Behalf Of Alex Eban
Sent: Thursday, February 10, 2005 7:37 AM
To: 'Bob Wilder'; boatanchors at mailman.qth.net; antennas at mailman.qth.net
Subject: RE: [Antennas] Off the subject
>>>it did exhibit exactly the same kind of interference , only on higher
frequencies. Point is' the harmonics fell in the UHF military aircraft
band and it did a terrible racket! Sooooo, the air force stepped in and
the had the clout we lack, so that now we're stuck with the system. Only
war will save us: we need to organize and wage war on the devices, and I
mean ALL OVER THE WORLD! The damned thing is spreading like bushfire and
wreaking havoc wherever it shows up!
Alex	4Z5KS
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