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Re: [CQ-Contest] Thoughts on automatic low-power bandpass filters

To: cq-contest@contesting.com
Subject: Re: [CQ-Contest] Thoughts on automatic low-power bandpass filters
From: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Fri, 23 Nov 2018 18:28:18 -0600
List-post: <mailto:cq-contest@contesting.com>
I've tested the Dunestar, AS and 5B4AGN filters before.  The AS has the best ajacent band attenuation response of the trio.  I use the 5B4AGN here and they are reliable.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com

On 21-Nov-18 5:56 PM, w5wz@w5wz.com wrote:
I use ICE 419B band pass filters between my transceivers and amplifiers.  They work, but I realize that others may work better.  To my knowledge, these are the players in the low power (200 watt) automatic band pass arena:

New prices listed
$318 ICE 419B
$505 Dunestar Multi Band Remote Switched Bandpass Filter
$700 DX Engineering 419 Automatic Band Pass Filter Systems
$700 AS-419 - "BandPasser II"

Are there other systems out there?

What is your experience with each of these?

How would you rank them?

Has anyone modified and published a "how-to" to modify the ICE system for better performance?

--Scott, W5WZ
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