Roger ...
Thanks for clarifying the filter differences. I printed out your
explanation and followed each option in the 564 Omni VI Plus and found
the factory installed 2.4 filters on both boards (I think). There's an
optional 500 Hz filter installed on the 6.3 board and one optional
filter on the 9 mHz IF board ... but I'm not sure what it is. It's in
the JG2 slot, if that means anything. Guess I'll have to go back in and
check it out again.
Are filters from International Radio less expensive than buying TenTec
filters?
Again, thanks for all your help.... it's much appreciated.
73... Jan WA2YL
> In the spirit of clarifying OMNI VI and filter differences Actually there
> are three 9 MHz. filter positions in the model 564 Omni VI Plus. It has the
> 2.4KHz. filter supplied by the factory, which is a plug-in filter that CAN
> be changed to either a 1.8KHz. filter OR a 2.8KHz. filter available from
> International Radio. There are also two additional optional filter
> positions, selectable by N-1 and N-2 on the front panel. Then there are the
> three optional 6.3MHz. filters independently selectable by front panel
> buttons, in additional to the standard factory supplied 2.4KHz. filter for
> the 6.3MHz. IF., which also CAN be swapped for a 2.8KHz. International Radio
> filter. So, in total, you CAN have SEVEN different IF filters, FOUR in the
> 6.3MHz. IF and THREE in the 9MHz. IF of which only TWO COME STANDARD and
> they are BOTH 2.4KHz filters, factory supplied originally.
> I hope this brings some clarity to the filter situation for an Omni VI Plus
> model 564 as well as an Omni VI upgraded to ver 3. and then called an Omni
> VI Plus, although it is still a model 563 without the plus's knob
> positioning and plus badge on the front panel. Other Omni VI's model 563's
> in their original form, as well as upgraded to ver.1 and ver.2 called Omni
> VI Plus's have only two total 9 MHz. IF filter slots amongst other changes
> from the model 564 true Omni VI Plus, which is the last and latest design
> and the only true Plus from the factory.
> An Omni VI upgraded to the ver.3 is said to be equivalent to an Omni VI Plus
> except for age and cosmetic changes, although there are some irrelevent
> component differences. Owner's of Omni VI's upgraded to Plus ver. 3's will
> say that they are identical to true Omni VI Plus model 564's and for the
> sake of saving an extended tread and bandwidth, they are, except as noted
> above. I hope this makes it clearer than mud and not muddier than clear.
> 73, -=Rog-K9RB=-
>
>
--
Jan Scheuerman, WA2YL <wa2yl@arrl.net> or <ylham@earthlink.net>
Home Page: http://www.wa2yl.com
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Exercise daily. Walk with the Lord!
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