[1000mp] Narrow ssb filters (was 500Hz vs 400Hz filters)

[n3drk]

The thing I would be concerned about Dave is a station close by while you
are at 400 Hz and the signal start pumping your agc. In that case I dont
think the edsp at 120 or even 60 would help. That is when the 250 hz would
come in.
73
john

----- Original Message ----- 
From: "Dave" <xrdave@optonline.net>
To: <1000mp@mailman.qth.net>
Cc: <wd4ahz@gte.net>
Sent: Friday, January 02, 2004 7:51 PM
Subject: Re: [1000mp] Narrow ssb filters (was 500Hz vs 400Hz filters)


> > > what about 2100 vs. the 1800 for SSB??   anyone have comments?
> >
> > Very timely.  I'm just about to close a deal on a pair of 1.8 filters,
> > primarily for SSB contesting, so I'm also curious to know if it's a good
> > choice.
>
> Ron,
>     I have a pair of 1800 inrads in my MP. For contesting, I wouldn't
trade
> them for anything else I have used to date. The shift, width and carrier
> point settings are very critical and very much a personal thing. Once you
> find what you like ie what sounds good to you, they are razor sharp, and
> with sufficient bandwidth for contest calls and reports. They are not very
> pleasant for ragchewing though.. but that is easily solved.
>
> FWIW I also use the Yaesu 500 / Inrad 400 combo on CW. I find it very
> effective, and just about the right width. If I want broader, I switch to
> the Inrad 1800 as the 455 filter. Still get excelllent system stopband
from
> the Inrad 1800, and the Yaesu 500 is not nearly as sharp as the Inrad 400
so
> the widening effect is quite noticeable.   I also have the Inrad 250/250
> combo installed, and I find very little use for them.  They work well for
> isolating a station who is running simplex, and has a packet pileup on
> him... BUT  I can achieve the same or better result using the EDSP
functions
> in the passband filter mode ( and save a bunch of bucks). Menu setting 4-5
> allows you to choose between 60 , 120 or 240 hz BW.  I am not close enough
> to my rig to check, but I believe I have mine set to 120.  Works swell _
If
> you can already hear the station when you turn it on _ . I find that
trying
> to use it while tuning the receiver frequency is a detractor to becoming
> aware of new signals as opposed to it being off. It is very good at
> isolating and enhancing a detected signal. YMMV
>
>    73 and HNY to you Ron, and all here in this fine reflector.
>
>          Dave K2XR
>
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