[Yaesu] Filter Improvements for FT-1000D

Ed Senior eseniors at earthlink.net
Sun May 8 13:30:53 EDT 2005


Hi Hans -

Thank you very much for taking the time to comment!

I have interleaved some responses below, if you care
to follow up.

73, Ed, W6LOL ("WE6" in original post was a typo!)

----- Original Message ----- 
From: "Hans Remeeus" <hans at remeeus.nl>
To: "Ed Senior" <eseniors at earthlink.net>; <yaesu at mailman.qth.net>;
<List at inrad.net>
Sent: Friday, May 06, 2005 10:10 PM
Subject: Re: [Yaesu] Filter Improvements for FT-1000D


> Hello Ed,
>
> E.g. in the Main Rx 2nd and 3rd IF:
>
> 2800 Hz Inrad instead of the standard 2400 Hz Yaesu
> 2100 Hz Inrad as optional SSB

I take it you prefer leaning a bit more towards "high
fidelity" audio, vs. maximizing selectivity.

> 1000 Hz Inrad instead of the standard 500 Hz Yaesu

I am guessing you like the 1000 Hz filter because it fills the
big gap between 2000 Hz and 500 Hz, and because tuning
would be easier.

> 400/500 Hz Inrad as optional CW

I assume you feel the Inrad 400 outperforms the Yaesu
500; but another recent poster seems disappointed to
find little difference.

It appears that you think the standard CW bandwidths
should be multiplied by two.  I expect you're right on that,
although it would bother me some to have incorrect labels
on the BW buttons.

> Sub Rx:
>
> 2800 Hz Inrad (wire-in) instead of the standard 2400 Hz Murata
>
Is "higher fidelity audio again the concern?

> This filter setup could be qualified as "significantly".
>
I thought I read somewhere that certain filter slots in the
1000D were not populated at all--at least in the sub-Rx.
If so, I would think that populating them appropriately
would have a high priority when spending more on filters.
>
> 73,
> Hans Remeeus (PA1HR)
> http://www.remeeus.nl
> Communication is about people, the rest is technology.
>
>
>




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