[1000mp] INRADS Roofing Filter

[Bob Main]

Figured as much, but just wondering.  Thanks

Bob

----- Original Message ----- 
From: "ON4ADZ" <on4adz at pro.tiscali.be>
To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
Sent: Saturday, February 05, 2005 10:01 AM
Subject: RE: [1000mp] INRADS Roofing Filter


> Dear Bob
>
> After the roofing filter is a amplifier installed, this must compensate 
> the
> insert losses of the filter.
>
> But the insert losses are not so high, so you have to reduce the IF gain 
> in
> the receiver.
>
> 73
> DIRK
> ON4ADZ
>
>
>
> -----Oorspronkelijk bericht-----
> Van: 1000mp-bounces at mailman.qth.net
> [mailto:1000mp-bounces at mailman.qth.net]Namens Bob Main
> Verzonden: zaterdag 5 februari 2005 14:20
> Aan: MarkV
> Onderwerp: [1000mp] INRADS Roofing Filter
>
>
> I have got to ask this because it is bugging the heck out of me.  First, I
> have no doubt the roofing filter works, but everybody is having to reduce
> the IF-Gain to cut back on the additional noise that is now received. 
> Dumb
> question, if you cut back on the IF-Gain BEFORE you install the roofing
> filter won't that also cut back on the noise?  Just thinking that if the
> noise is what is bothering you then reduce the IF-Gain now instead of 
> later.
>
> BTW I do plan on ordering the roofing filter too, but that has just been
> bugging me.
>
> Bob
> KB4CL
>
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