If you haven't done so already, it would be a lot cheaper to make up a set
of switchable bandpass stubs, ala the designs on K1TTT's website. A bit more
work, of course. Stubs got rid of most of my problems, but in the end I
added a pair of switchable inline bandpass filters to get rid of the last
vestiges of interference. I had the Dunestars for a while and they worked
fine. Replaced them with a set of switchable W3NQN filters (a unit similar
to the Dunestars from Array Solutions -- now discontinued.) Haven't tried
the ICE filters.
73, Dick WC1M
> -----Original Message-----
> From: Pete Smith [mailto:firstname.lastname@example.org]
> Sent: Monday, January 31, 2005 5:30 PM
> To: email@example.com
> Subject: [TowerTalk] Bandpass filters - ICE vs Dunestar
> Judging by their published specs, the Dunestar 600
> bandswitched bandpass
> filter appear to be usefully better than the ICE 491 unit.
> Can anyone who
> has used both comment on whether this is true, and whether
> $110 per filter
> is worth it? Are there other considerations? I will be using band
> decoders to control the filters, so the lack of an external
> controller for
> the Dunestar is not a factor.
> 73, Pete N4ZR
> The World HF Contest Station Database
> was updated 12 January 2005
> 2868 contest stations at
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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