[WARC] need person with 70. cm. rcv for test

[jonmcpete at cpinternet.com]

I have all the parts finally for the ATV repeater.  Want to
test each part to be sure the total IS equal to the sum of
the parts otherwise it is difficult to assess whether you
are really getting out of it what you would "expect" as few
other such machines in the area to compare with. 
Actually....none.
What I need is a person or two (more OK) who can be
available now and then to compare signal strengths as I swap
among three antennas, three feed lines, at three different
heights.  NO, NOT ALL 27 COMBINATIONS !!!!  The tests for
this part will just use FM voice on one of the ATV
frequencies.  443.750 MHz would probably be good.  NO ATV
equipment is needed.  What would be IDEAL would be
someone(s) with a simple VERTICAL 70. cm. antenna.  Beams
might be a nuisance because of the need to always set them
back to the same bearing.  The idea is that I transmit a
fixed power carrier and the receiving station notes the
signal strength (any type of "S-meter" reading is fine,
doesn't need to be calibrated).  When I switch to another
antenna, feedline, height, etc. we coordinate (on another or
the same frequency) and see how much I need to attenuate the
signal on my end to get the same reading on your "S-meter." 
I can always measure gain/loss for the transmitter power and
the feedline by other means but am very curious how much the
height affects this and whether the antennas really meet
their spec.s.  Picked up a DB-420 antenna at Dayton (16
"folded dipole" array) but is used and want to actually
assess it.  Will compare with two other fiberglass "sticks".
 Would like to check out tonight a few things to see just
what power level will be needed to accomplish these goals. 
FM voice is plenty adequate for these first
measurements...plus I don't feel like carrying a video and
audio source, transmitter, amp., bird meter, lead gel-cell,
and batch of attenuators to the top of the tower too many
times if I can calculate whether it is performing up to
snuff from these tests.   jon wa0unb

Jon Peterson wa0unb