[Elecraft] K3 and SM-220

[Radio Amateur N5GE]

On Sun, 10 Oct 2010 13:58:20 -0800, Jim Wiley <jwiley at alaska.net>
wrote:

Hello Jim.

I have a Kenwood SM-230.  I wonder if the same holds true for that
model?

Tom Childers, N5GE
Licensed since 1976
QCWA Life Member 35102

n5ge at n5ge.com
http://www.n5ge.com
http://www.swotrc.net

>Open up he SM-220.  The band-scope option is in a small metal box toward 
>the rear of the scope.   It will be marked either BS-8 or BS-5, for 8 
>MHz or 5 MHz respectively.  It may be possible to retune the unit to the 
>desired operating range, although it may be necessary to juggle some 
>component sizes.  A schematic can be obtained on line I think.  Note: if 
>it is a BS-5, the only difference between the units is the oscillator 
>coil and a few components.  Replacing the appropriate parts with those 
>for the alternate frequency range will make the switch.  Since these are 
>"discrete" parts, the swap should be straightforward.  The 8 MHz version 
>may have enough tuning range to shift over the K3 IF without changing 
>parts.  As supplied, the BS-8 is set for use with an 8.83 MHz IF, if I 
>remember correctly. The band-scope print is part of the main SM-220 
>manual. .
>
>
>- Jim, KL7CC
>
>
>DM4iM wrote:
>> Elecrafters,
>> i like to interface a Kenwood SM220 Scope to a K3.
>> There is a Pan Display Option installed, but there is no hint
>> if it is the BS-5 (3.3Mhz IF) or BS-8 (8.83Mhz IF).
>> How can i determine which Pan Display i have?
>> I got this scope from a SK w/o any manuals.
>> If it is the 8Mhz IF, can i retune it AND will it work with a K3 /
>> KXV3A ?
>>
>>
>>   
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