On May 10, 12:58*pm, RHF wrote:
For One and All,

Need Info on the YK-88S2 IF Filter ? -for- Kenwood R-5000 Receiverhttp://groups.yahoo.com/group/kenwood-r5000/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 Filterhttp://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 Filterhttp://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
*.
The Kenwood R-5000 Receiver Owners & User's Group
KENWOOD R-5000 RECEIVER =http://tinyurl.com/2o4z8k
Is your place on the WEB to use as a "Resource" for
General and Technical Information about the Kenwood
R-5000 Receiver and to Identifying Common Problems
and Simple Practical Solutions.http://tinyurl.com/2o4z8k
KWR5K =http://groups.yahoo.com/group/kenwood-r5000/
Shortwave Radio Listening Antennas "The Other" 55.5% of SWLing
SWL ANTENNA =http://tinyurl.com/ogvcf
- = 2O4Z8K = -
*.

The R-5000 has four filter slots with designated R5000 filters giving
6khz (YK88a optional), 4khz (YK88S), 1.8khz (YK88SN optional) and CW
(two filters available).

YK88S2 might make sense in filter position 2 if it fits and if a
really narrow AM filter was needed. YK88S1 would appear to largely
duplicate the YK88SN filter and I doubt any noticable benefit would be
gained in that swap.

I've got the full complement of optional R5000 filters and find them
to be a good mix of widths. Nice to see that something else is
available though.