The W3NQN filters from Array can handle 200 watt SSB only, barely enough for
QRP. I use them for my multi TRX Winlink station, they perform very well.
The Microham banddecoder covers 11 bands. The unit outputs band data for
control of amplifiers, even when the radio doesn't output that data. Price
is Euro 226, dunno how much US Zloty that is now.
Cheers, Dick
PA3DUV
----- Original Message -----
From: "mike kendall" <ke6cvh@yahoo.com>
To: <amps@contesting.com>
Sent: Saturday, August 05, 2006 5:16 PM
Subject: [Amps] band decoders for 1.5kw low pass filters
Hello,
As I work on my 1.5kw filters, I have some different designs to go off
of. I have sourced the capacitors. A gentleman in Portugal sent me his 7
pole filter designs (thank you), there are the lesser amount of poles in the
ARRL amplifier classics, the tables in the west coast radio handbook as
well. Also, I ran accross a british QRP website that had complete tables
for W3NQN low pass filters. The W3NQN LPF filters had been optimised for a
total of 9 LPF's, each one just above each HF amateur band.
Ok, now for a question. After looking at Jay Terlewski's web site
(Array Solutions) where he sells the 2kw W3NQN band pass units and a
switching arrangment (500watts only) I wonder if the band decoder units he
mentioned can handle 9 filters or just 6 filters. If anyone is familiar
with what is out there, please drop me an email. I would like to be able to
use a band decoder between a ham rig and hopefully up to 9 filters if it
allows or whatever the standard number is. I will use my own switching
arrangement/relay power supply with alot of B1B vacuum relays I have coming
on the way.
73,
Mike
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