[TenTec] Old Omni A series B Noise Blanker Question

[Mike Hyder -N4NT-]

Hi Kevin,

Your information about the Omni-C blanker was not true for mine. I have a 
Triton 544 and an Omni-C, each with the proper Ten-Tec blanker. The 544's 
blanker would quieten the loudest of line noises. The Omni-C blanker was as 
good as a brick in the corner would have been.

I examined both schematics and noted the differences, then modified the 
Omni-C blanker's circuitry to correspond electrically with that for the 544. 
As I recall, it was a matter of rewiring just a bit but I think no parts 
were required... or left over, either. That was a number of years ago.

My Omni-C blanker thereafter was as good as, but not better than that in the 
544.

73 and Good Luck - and Merry Christmas
Mike N4NT

----- Original Message ----- 
From: "Kevin Hodges" <kelectron93 at gmail.com>
To: <tentec at contesting.com>
Sent: Monday, December 16, 2013 09:24
Subject: [TenTec] Old Omni A series B Noise Blanker Question


>     I'm wondering if anyone's willing to help me with a noise blanker
> issue...
>
> I have an old Omni A Series B with the optional factory built model 248
> noise blanker installed.  I also have a Triton IV Digital with the model
> 249 noise blanker installed.  *The Triton IV's NB works VERY well on my
> noise problem* The
> Omni A NB does NOT work at all on 95% of any noise I hear...
>
> ( I did discover one day that the Omni A NB WILL cut some sort of ignition
> noise coming from vehicles passing by on the street!!!)
>
> 1) Could you shed light on the rumor I've heard :" Yes; the Omni C has a
> much
> improved noise blanker compared to the Omni series A and B"  ?
>
> 2)  Could you suggest modifications to the Omni A's NB to make it
> more/exactly
> like the NB of the Triton IV?? (I'm aware of a few custom made parts no
> longer available from TenTec that I could have used)
>
> 3)  Is there another NB solution/option in your opinion? ( It just 'ain't'
> feasible/desirable to use a "sense antenna in-phase device here,,,)
>
> Any off-list responses to   kelectron93 at yahoo.com
>
>
>                                   Thanks & 73,
>
>            Kevin WA4GQG