For One and All,

Kenwood R-5000 Receiver - Need Info on YK88S2 IF Filter ?
http://groups.yahoo.com/group/kenwoo...0/message/2115

? ? ? - I WANT TO KNOW - ? ? ?

There is another Kenwood IF Filter that is design for one
or more of their 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

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

The reason for this posting is -if- the Modified
Board Mounted Kenwood YK-88S2 Filter is usable in
the Kenwood R-5000 Receiver ? ? ?

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 Really Narrow AM
This Recewiver 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 information on the Kenwood/Trio
YK88S2 IF Filter ?

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


and once again - i want to know ~ RHF