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Old May 10th 08, 05:58 PM posted to rec.radio.shortwave,rec.radio.swap,rec.radio.amateur.equipment
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First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Need Info on the YK-88S2 IF Filter ? -for- Kenwood R-5000 Receiver

For One and All,

Need Info on the YK-88S2 IF Filter ? -for- Kenwood R-5000 Receiver
http://groups.yahoo.com/group/kenwoo...0/message/2115

Also may Want-to-Buy [WTB] a YK-88S2 IF Filter -so-
Does Anyone Have a YK-88S2 IF Filter : For Sale ?

Background : There is another Kenwood IF Filter that
is design for one or more of the Kenwood Transcevers
that is Listed as a YK-88S2.

The YK-88S2 is a standard "Can" Solder-In type Filter
and -only- and needs to be mounted on the Dash-One (-1)
"Plug-In" Filter Circuit Boards used by Kenwood in some
of their Transcivers and the R-5000 Receiver.

The YK-88S2 Filter can be used by swapped-it-out with
an existing Filter that is mounted on the Circuit Board
of the Drop-In Filter for the Kenwood R-5000 Receiver.

IIRC - The YK-88S2 is designed to work on 8.83 MHz and
has the same size and circuit characteristis as the
other Filters designed for the Kenwood R-5000 Receiver.

Reference Link/URL for the YK-88S2 Filter
http://jg1xlv.jp-au.net/yk88s2.htm

My reading of the Numbers for the YK-88S2 Filter :
The -6 dB Bandwidth would be 3 kHz (2x1.5)
The -20 dB Bandwidth would be 3.8 kHz (2x1.9)
The -60 dB Bandwidth would be 5.5 kHz (2x2.75)
http://jg1xlv.jp-au.net/yk88s2-spec.htm

Now comparison this to the KY-88A-1 Filter
The -6 dB Bandwidth would be 6.0 kHz
The -20 dB Bandwidth would be ?.? kHz
The -60 dB Bandwidth would be 11 kHz

My Conclusion is that the Kenwood YK-88S2 (3.0 kHz)
would appear to be usable as a Very-Wide SSB IF Filter
-and/or- a Very-Narrow AM/MW IF Filter
http://jg1xlv.jp-au.net/yk88s2-spec.htm

The reason for this posting is -if- the Standard Solder-in
IF Filter Board Mounted of the Kenwood R-5000 Receiver
will take a Kenwood YK-88S2 IF Filter : It should -but-
has anyone had a problem ? ? ? ? ?

=IF= The Kenwood YK-88S2 IF Filter is a Drop-in-Fit
-then- I would like to configure a Kenwood R-5000
Receiver with the following Filters :
1st IF Filter = YK88-A1 - AM 6 kHz for Wide AM
2nd IF Filter = YK88S2 - AM 3 kHz for Narrow AM
3rd IF Filter = YK88S-1 - SSB 2.4 kHz for Very Narrow AM
This Receiver would be "Set-Up" specifically for Shortwave
Radio Broadcast Program Listening and not for Amateur
Radio SSB Reception.

Once Again - Two Questions :

# 1 - Has anyone any more information on the Kenwood
{ Trio } YK88S2 IF Filter ?

# 2 - Has anyone any used the Kenwood { Trio } YK88S2
IF Filter in any Rigs ?

some say - i would if i could . . .
-while- i simply say 'kenwood' ~ RHF