Hey, he said, while trying not to get any more egg on his face....
I thought the formula was the quantity sqrt PF + sqrt PR divided by the
quantity sqrt PF - sqrt PR .
Suppose you had 100 watts of forward and 4 watts of reflected.
Therefore 10 + 2 divided by 10 - 2 = 1.5
Your formula says 1.2 divided by 0.8 = 1.5
Well, I'll be darned !!!
de WD7F
John in Tucson
----- Original Message -----
From: Gary Schafer
To: Repeater-Builder@yahoogroups.com ; [EMAIL PROTECTED]
Sent: Sunday, November 04, 2007 8:52 PM
Subject: RE: [Repeater-Builder] VSWR Chart for Bird
1 + square root (r/f)
SWR= _________________
1 - square root (r/f)
where r = reflected power
f = forward power
73
Gary K4FMX
from: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of
n9wys
Sent: Wednesday, October 31, 2007 6:07 PM
To: Repeater-Builder@yahoogroups.com; [EMAIL PROTECTED]
Subject: [Repeater-Builder] VSWR Chart for Bird
Does anyone have a VSWR chart for the Bird wattmeter (preferably the 4410,
since that’s what I have – but I’m not sure there would be any difference) that
they would be willing to share with me? I bought my meter used and it came
with neither manual nor chart.
Thanks,
Mark – N9WYS
