[1000mp] remove top or bottom cover for filters on Mark V?

[1000mp@mailman.qth.net]

Hello Julio,

$ 400 for 6 Yaesu filters is a bargain! Congratulations; you will not find
this very often.

I never noticed any noise by-product with the Inrad filters I use. On the
contrary; they just do what they have to do without any negative spin-off.

The MEM/VFO CH on the FT-847 is very usefull, e.g. for FM-channels. So is
the VRF/MEM CH on the 1000MP for often used frequencies. Writing a program
for multi purpose opeation of these knobs could be usefull. However, I am
not using computer controlled operation very often. I like the more direct
way of operating a transceiver. This of course is a personal taste.

73! Hans Remeeus.

Ham Radio:
PA1HR

Sites:
www.remeeus.nl
www.qsl.net/pa1hr

e-mail:
hans@remeeus.nl


----- Original Message -----
From: "Julio Roque/Bits" <markv@k4jrg.org>
To: <1000mp@mailman.qth.net>
Sent: Saturday, October 05, 2002 9:17 PM
Subject: Re: [1000mp] remove top or bottom cover for filters on Mark V?


> Thanks Hans.
>
> Unfortunately, I guess, I found a deal to buy 6 of the Yaesu filters for
> $400 and couldn't pass it up. One thing I noticed on another Yaesu radio
> loaded with Inrad's is that engaging the CW filter will generate an amount
>
> of noise by-product. I don't hear as much of the noise on the radio with
> the Yaesu filters but this could be due to the sharper skirts on the
> Inrads.
>
> Taking a queue from my audio hobby, it appears as if the audio is not just
>
> bandpassed but compressed into the narrow bandwidth of the filter and then
>
> amplified to compensate for level loss. This produces some unwanted
> overtones which, unluckily, seem to be right on the CW pitch you're trying
>
> to zero-beat on. I don't know much about IF stages but that doesn't happen
>
> as pronounced in the audio world. I can take a CW audio recording, load it
>
> into Sound Forge and come up with a pristine sounding CW tone; very little
>
> noise left and none added. It would be really great if somehow we can
> digitize the IF stages and process it in our computers.
>
> Mandatory 1000MP subject: I'm finding myself tuning the bands with the Mem
>
> Ch button rather than the nice, large VFO wheel. Lacking the function
> found on my FT-847 where the Mem Ch button will round the freq to the
> nearest integer, would it be useful to write a program that does it as one
>
> turns the VFO?
>
> Regards,
> Julio
> K4JRG
>
> >Not only the shapefactor of the Inrad filters is one of the best, but
> they
> >have very good audio too; more natural.
>
>
>
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