[TenTec] Getting WARC bands going on OMNI-D 546

[Mike Hyder -N4NT-]

None of the black Omni rigs (A, D, B or C) will operate 18 MHz 
satisfactorily because on that band the rig transmits spurs -- one or more 
of them is often a watt or higher in power.

73, Mike N4NT

----- Original Message ----- 
From: "Carl Moreschi" <n4py at earthlink.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, May 09, 2005 10:29 PM
Subject: Re: [TenTec] Getting WARC bands going on OMNI-D 546


The Omni D series B (which it sounds like is what you have), can only be
modified for 24 mhz and 10 mhz.  18 mhz is not possible.  There was a kit
containing several coils that did the mod for these two bands.  This kit
sold for $25 back in the 80's.  I recently saw one for sale on this
reflector just a few weeks ago.   This kit adds 10 mhz transmit and 24 mhz
transmit and receive to the AUX position of the band switch.  I do not
recommend doing this mod without the kit because of the complexity in making
the specialized coils and transformers.

If you have an Omni C, then all you need is crystals.  The Omni C has 10,
18, and 24 mhz right on the band switch.

Carl Moreschi N4PY
Franklinton, NC
----- Original Message ----- 
From: "david feldman" <wb0gaz at hotmail.com>
To: <tentec at contesting.com>
Sent: Monday, May 09, 2005 9:45 PM
Subject: [TenTec] Getting WARC bands going on OMNI-D 546


> Have an OMNI-D type 546, want to get WARC bands going.
>
> Here's my questions, per-band:
>
> 1. 10 MHz: Receives, goes into TX but no power out. Is this a
> jumper? Where?
>
> 2. 18 MHz: What is the Xtal freq? Ordered the P/N 48070 xtal
> from Ten-Tec (for 18 MHz band), but got the 48071 xtal instead
> (for 24 MHz band) - evidently the other item out of stock. Anyway,
> can't decipher on my copy of the manual the freq for the 18 MHz
> band xtal, can someone advise?
>
> 3. 24 MHz: I have the xtal (above), but not sure what band position
> to use (band switch is 21.0 - 28.0 - 28.5 - 29.0 - 29.5) - the schematic
> suggests a separate position for 24.5 MHz (on board type 80711.)
>
> Anyway, hints appreciated,
>
> 73 Dave WB0GAZ wb0gaz at hotmail.com