[CQ-Contest] Band-pass filters -- insertion loss

Gian Luca Cazzola glcazzola at iol.it
Fri May 4 19:10:24 EDT 2001


Hi Pete,
I can confirm that using a Dunestar model 600 bandpass filter with my
FT1000MP, using 100w input I have at the output (on dummy load 50ohm-Bird 43
with 250w power plug)) from 80
to 90 watt (lower power on 10m).
73
Ian IK4EWX


----- Original Message -----
From: "Pete Smith" <n4zr at contesting.com>
To: <cq-contest at contesting.com>
Sent: Thursday, May 03, 2001 1:19 PM
Subject: [CQ-Contest] Band-pass filters -- insertion loss


 >
 > In some current research on SO2R, I was reminded recently that nothing's
 > for free.  One well-known SO2R op commented that he got only 80 watts out
 > of the bandpass filters that follow his 100-watt class radios, which in
 > turn means he can not drive his 3-500Z amps to full output.
 >
 > Is this typical of the bandpass filters available today -- ICE, Dunestar,
 > Array Solutions?  Anything to choose among them in this respect, or
others?
 >
 > Thanks in advance.
 >
 > 73, Pete N4ZR
 > Contesting is!
 >
 > The World Contest Station Database
 > is waiting for your input at
 > http://www.qsl.net/n4zr
 >
 >
 > --
 > CQ-Contest on WWW:        http://lists.contesting.com/_cq-contest/
 > Administrative requests:  cq-contest-REQUEST at contesting.com
 >


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