Thanks to all who offered advice. Looks like these filters should do a good
job for our two-transceiver operation as VP8WWW in the Falklands. Power
limit there is 150 watts so amplifiers will not be in the mix. Look for us
beginning November 19, and running through December 3, working CQ WW CW in
the middle. We have a new web site (under construction) that is planned to
show operating plan, plus some photos when we get there (assuming we can get
Internet connection for FTP). http://www.gtdx.com
Keith NM5G
VP8NMG (pending)
-----Original Message-----
From: Jerry Muller [mailto:jerry@k0tv.com]
Sent: Tuesday, October 19, 2004 10:21 AM
To: keith@dutson.net; TowerTalk
Subject: Re: [TowerTalk] Array Solutions
Keith,
I use two ICE 419A bandpass filters in my M/2 contest station. I have
greater than 250 feet between my LPA for 20-10 and the 15 meter beam,
greater than 300 feet between the LPA and the 40 meter beam, greater than
400 feet between the 15 meter beam and the 40 meter beam, but only about 100
feet between the ends of the 80 meter four square elevated radials. The 160
meter antenna is the three towers themselves and the beverages are outside
everything. They work just fine.
I did not have to send them back for retuning, but I have not measured them.
I have not found any problems with them. I put them between the rigs and the
amplifiers.
I do not operate the station with two positions on the same band, but I have
had no interaction problems when the antennas are all working. We run two
transmitters and high power. We do not however normally run mixed mode. I
have used them on Field Day in a multi mode environment, but not with high
power.
I've heard from others that the ICE filters aren't as good as the other
filters that Jay has, but those other stations were running multiple stacks
on the same tower. The ICE filters don't have as much ultimate rejection as
the other filters, but if you separate your antennas everything will be
fine.
73 es GL, Jerry K0TV
----- Original Message -----
From: "Keith Dutson" <kjdutson@earthlink.net>
To: "TowerTalk" <towertalk@contesting.com>
Sent: Tuesday, October 19, 2004 11:02 AM
Subject: RE: [TowerTalk] Array Solutions
> Having recently taken delivery of two ICE 419A combo bandpass filters
> ordered through Array Solutions for use in a DXpedition next month, I am
> looking for any input on the best way to implement these in a two radio,
> multiple antenna station. Just how good are they in a CW-CW environment?
> How about in a SSB-CW, SSB-SSB or SSB/CW-digital environment?
>
> Keith NM5G
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Jim Brown
> Sent: Tuesday, October 19, 2004 12:36 AM
> To: Tower Talk
> Subject: Re: [TowerTalk] Array Solutions
>
> On Mon, 18 Oct 2004 12:39:22 -0600, Joe - WD M wrote:
>
> >Array Solutions dos NOT stock ICE products - you place the order with
> >Array, and they send the order to ICE. Took me almost a month to
> >receive my orders....Jay isn't happy with the arrangement, but to my
> >knowledge, hasn't changed the process. Good equipment - I like it -
> >just lengthy to receive following your order being placed.
>
> Also count on having to send the VHF ICE filters back for realignment. I
> bought two -- one for six meters and one for two meters. Both were
> significantly out of alignment (a couple of dB loss in the passband, spec
> was a lot less). I also bought some HF filters, which were fine. BTW --
> the filter performance was verified using lab quality test equipment by
> substitution with the filter working into a good dummy load.
>
> Jim
>
>
> _______________________________________________
>
> 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.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
> 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.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
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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