[Milsurplus] T-195 MO FSK BNC

[John Vendely]

Howdy,

I'm going by memory here, and it's about 45 years since I last did 
this.  However, I think the procedure you want isn't in the T-195 
manual, but rather the -35 manual for the AN/GRC-46, which 
unfortunately, I no longer have.  But I recall it was pretty obvious 
once you get inside the transmitter.   Two internal T-195 cables are 
swapped to route the MO output to the front panel MO OUTPUT, and route 
the front panel FSK IN jack back to the exciter/multiplier RF input.    
One cable is in a stowage position, linking the FSK IN jack to the MO 
OUT jack for non-FSK operation.  You just disconnect and reroute one end 
of this cable to the exciter RF input, and connect the exciter end of 
the MO output cable to the  "stowage" connector on front panel main 
frame, thus routing the MO to the front panel.

We can deduce the procedure by looking at the T-195 manual, TM11 
5820-335-35 (available on-line).  Referring to schematic, Fig. 2-82.1, 
and Subchassis Interconnection Cabling Diagram, Fig.  2-81:

1. Locate stowed cable running from FSK IN connector J613 to main frame 
connector J620 and disconnect P601 from J620.

2.  Disconnect MO output cable connector P801 from exciter chassis RF 
input connector J101.

3.  Reroute cable to connect P601 to J101.  This routes FSK from the 
MD-203 back to the exciter input.

4.  Reroute MO output cable to connect P801 to J620 at the main frame.  
This routes MO output to the MD-203.

Hope this helps.

73,

John K9WT

On 3/7/2023 9:30 AM, B. Smith wrote:
> Is there a procedure in the manual for internal cable connections for 
> the  FSK and MO connectors  on the front of the T-195? These 
> connections are needed to activate the FSK and MO BNCs on the front.  
> I don't see any spare internal cables in my T-195.
> k4che
>
>
>
> ______________________________________________________________
> Milsurplus mailing list
> Home:http://mailman.qth.net/mailman/listinfo/milsurplus
> Help:http://mailman.qth.net/mmfaq.htm
> Post:mailto:Milsurplus at mailman.qth.net
>
> This list hosted by:http://www.qsl.net
> Please help support this email list:http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20230307/b544c4c9/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: mo.jpg
Type: image/jpeg
Size: 33112 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20230307/b544c4c9/attachment-0001.jpg>