PSN-L Email List Message

Subject: Re: Rockland filter
From: "Dewayne" n0ssy@...........
Date: Mon, 8 Jan 2007 11:19:22 -0700

I have a Rockland analog filter I purchased at a Ham radio fest many years 
ago. If someone would like to purchase it, make an offer.
As I do not have any packaging I will take it to a package/shipping store. 
This cost would be added to your offer. If I get multiple
offers the highest will be considered.

E-mail me directly at: n0ssy@...........


----- Original Message ----- 
From: "Bob Barns" 
To: "psn mail" 
Sent: Monday, January 08, 2007 8:07 AM
Subject: Rockland filter

>  For great flexibility, sharp cut-off, etc., I think that the Rockland 
> analog filters are the way to go. With this type of adjustable filter, you 
> can easily try different settings to see which is best for you. I have a 
> Rockland model 1022F-04.
> It is dual channel.  The two channels can be independently set. 
> Function:low or high pass, response is Butterworth or RC, attenuation 
> slope is 24 db/oct [this is really sharp], there are several models:
> model     cut-off range
>  01    0.01Hz to 111kHz
>  02    0.001Hz to 11.1 kHz
>  03    0.1Hz to 111 kHz
>  04    0.01 Hz to 11.1 kHz
> input is single ended, 10M impedence
> gain is 0db or 20 db
> Output is single ended 50 ohms impedence
> If you want only a single filter, the two sections can be connected in 
> series to provide REALLY sharp cut-off or a band-pass filter.
> It is rack mount, 5 1/4" hi, 17" wide and 14" deep and weighs 18 lbs.
>  Power consumption is less than 10W
> I can supply a photocopy of the manual.
> There us currently a digital Rockland on ebay but it looks expensive and I 
> don't know the specs.  The analog version comes up occasionaly.
> I  paid <$200 several years ago on ebay.
> Bob
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