[TenTec] Omni VI confusion

[Steve N4LQ]

Well sort of...There's lots of little things TenTec did when they came out 
with the 564, VI+. For example. The option caused some birdies. They cut 
cable 34 between the logic board and 9mhz IF and inserted RF chokes in 
series then put heat shrink tubing over them In the VI+, they rethought the 
process and installed a little circuit board with smd parts on it. Cable 34 
goes into and out of that. Then there's the tcxo thing. Many option 3 
upgrades you find will not have the tcxo unless it was upgraded later. That 
is not part of the "option 3 upgrade". The VI+ came with the tcxo. 
Furthermore, there are dozens of minor electrical changes between the option 
3 and VI+ like entire circuit boards changing to SMD instead of leaded 
parts. I hate SMD!!!. They put all the parts on the bottom of the boards 
making it impossible to measure a voltage or trace anything without removing 
the board.
Personally, I would much prefer the old Omni VI 563 with all the upgrades I 
could get. Yes, you still have to contend with the IF boards being SMD but 
at least the control board has good ole leaded parts.
I have just scratched the surface here. The whole thing evolved over the 
years. You will not see 2 Omni VI's alike. Look at the boards and you will 
see parts bridged across connectors, parts stuck under the boards, strange 
lumps in cables containing parts and capacitors soldered from ICs to ground.

Steve N4LQ
----- Original Message ----- 
From: <W9MWS at aol.com>
To: <tentec at contesting.com>
Sent: Sunday, January 09, 2005 6:28 PM
Subject: Re: [TenTec] Omni VI confusion


>
> According to the service folks at Ten-Tec last week, the Omni VI Opt 3  is
> electrically the same as the Omni VI+.
>
> In a message dated 1/9/2005 4:18:55 P.M. Eastern Standard Time,
> jmlowman at sbcglobal.net writes:
>
> I  thought that, with the option 3 upgrade to the original Omni VI, it
> became  an VI Plus from an electronic standpoint.
> Scott, can you weigh in on this  again?
>
> 73 de Jim -  AD6CW
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>