[CQ-Contest] Multi-Band Bandpass Filters

John Unger w4au at verizon.net
Fri Feb 20 09:49:08 EST 2015

Hi Jeff -

I've had two of the ICE 419's for many years and they seemed to perform 
well. Recently they both developed problems with the relays not making 
good contact when switching bands and being sensitive to mechanical 
"shock" (pounding on the box...).

I spoke with WX0B at Array Solutions, which took over ICE a while ago, 
and Jay told me that they don't work on the 419's any more. I have 
replaced one 419 with a Bandpasser II and am very happy with it; it 
interfaces well with my K3. I still use the better 419 on one radio, but 
occasionally have to send a "dit" after switching bands before I get 
good contact from the relay.

73 - John, W4AU

On 2/19/2015 4:23 PM, Jeff Clarke wrote:
> Looking for feedback on multi-band bandpass filters to use for SO2R.
> The two I'm considering are the DuneStar 600 and the Array Solutions BandPasser II. I've used the Dunestar at our contest station in Bonaire and they seem to work OK. We have occasionally had to send one back for repair with one of the band positions not working anymore. Guess we maybe blew it by having it on the wrong band when transmitting.
> What are you serious SO2R guys using?
> Jeff KU8E
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