[R-390] Kahn SSB Converter

[rbethman]

Sheldon,

Thanks for the correction.

I was trying to convey that the normal every day Amateur Radio Operator 
is NOT equipped to work this mode.

Now that is NOT to say that you can *hear* some interesting 
communications!  Just DON'T repeat what you hear to a third party!

They put the Electronic Communications Privacy Act into effect starting 
in 1986.  They KEEP modifying it.

Net result - It IS a Federal offense to repeat to a NON-Participant of 
the communications to a NON participant - EVEN if you DO monitor it.

Bloody rules!

Bob - N0DGN

Sheldon Daitch wrote:
> With all due respect, ISB was not unique to the US military.
>
> The VOA ran ISB transmitters at both Greenville transmitter sites,
> and I am almost sure the same for Delano and perhaps Dixon, as
> well.  I never worked at Delano but my notes indicate #9 and #10
> at Delano were Continental 617As
>
> When we were still in the HF relay operations, there were three
> transmitters at both Greenville sites running ISB for our program feeds.
> Transmitters #10 and #11 at both Greenville sites were TMC GPT-40s
> and #9 at both sites were Continental 617As.   All the exciters at 
> Greenville were
> TMC MMX-2 units, capable of running ISB and were the wide band
> audio options, with 5-6 kHz wide filters.  Don't hold me to the exact
> bandwidth, as I don't have a TMC manual handy.
>
> The TMCs at Greenville originally used one of the tubed versions of TMC's
> ISB exciter systems.  The equipment was in the rack in 1979, when I 
> started
> working there, but the MMX-2 was the operational exciter.  Last time I 
> was
> in Greenville, 2005, maybe, all the old tube tube exciter units were gone
> with only the MMX-2s in place.
>
> 73
> Sheldon
> WA4MZZ
>
>
>
>
> rbethman wrote:
>
>> It uses nuvistors.
>>
>> It is NOT a "NOT" a plain Jane SSB converter.  Its purpose was to 
>> receive ISB, (Independent SideBand),  a unique method used by the 
>> U.S. Military.
>>
>> Bob - N0DGN
>>
>>  
>>
>

-- 
Bob Bethman/NØDGN/BC-610/Northern Radio 
SP-600 Manassas, VA - MultiBand Dipoles