The Engine is a Line Linear Motor...
 Used to Float and move a monorail car. no moving parts   a pulse moving  
magnetic field
almost like  a catipillar. the Car contains  magnets  and the Field changes in 
the Track
some cool stuff....
--- On Wed, 2/4/09, Mike Wehr <[email protected]> wrote:

From: Mike Wehr <[email protected]>
Subject: Re: [Repeater-Builder] Need Info on - Sigma DX26FB Duplexer
To: [email protected]
Date: Wednesday, February 4, 2009, 7:47 AM



I'm sure the 4meg was picked for the application it was to be used for... can 
probably be tweaked to a lesser spread.
 
No guess on the engine, but keep watching EBay.. surely one will turn up :-)
 
 

----- Original Message ----- 
From: neal Newman 
To: [email protected] 
Sent: Wednesday, February 04, 2009 6:38 AM
Subject: Re: [Repeater-Builder] Need Info on - Sigma DX26FB Duplexer








 Interesting. ......
 but its for 4 meg seperation.. . Not good here with 1.6 meg seperation
 care to guess on that motor

--- On Wed, 2/4/09, Mike Wehr <weh...@comcast. net> wrote:

From: Mike Wehr <weh...@comcast. net>
Subject: Re: [Repeater-Builder] Need Info on - Sigma DX26FB Duplexer
To: Repeater-Builder@ yahoogroups. com
Date: Wednesday, February 4, 2009, 7:21 AM



Thanks for your reply Neal.
 
But.. I do have a picture of the unit, with the factory specification tag and 
the testing report that goes with it.  It is a brand new unit.  If you Google 
'Sigma duplexer', you will see what it (they) look like.  Most of their units 
are similar in dimensions.
 
Hi Freq:  234.5    
Lo Freq: 230.2
 
Isolation: 89db
Insertion Loss: 0.8db
 
Just trying to figure out what it was used for, and if it might be applicable 
for use here.  It was made in Ireland, but purchased from England.  Researching 
what those frequencies might be used for in either country, but nothing 
definative.
 
Thanks!
 

----- Original Message ----- 
From: neal Newman 
To: Repeater-Builder@ yahoogroups. com 
Sent: Wednesday, February 04, 2009 6:13 AM
Subject: Re: [Repeater-Builder] Need Info on - Sigma DX26FB Duplexer



I had a Flat pack 220 Duplexer.. what your describing is much to small.
for 220Mhz its closer to 18 inches long not 4 inches
sounds Like you have a 440 or 800 mhz duplexer... But then again what do I 
know.....people are always trying to beat Physics and theory By making smaller 
packaging... ..
Here is one. Buid a New Engine/motor that develops 1000 Hp. No Pistons. No 
Turbines/ its only 6 inches wide and weighs less than 400 lbs.
Is it Possible.... ,and what is it?

Neal-ka2caf

--- On Wed, 2/4/09, wehrme <weh...@comcast. net> wrote:

> From: wehrme <weh...@comcast. net>
> Subject: [Repeater-Builder] Need Info on - Sigma DX26FB Duplexer
> To: Repeater-Builder@ yahoogroups. com
> Date: Wednesday, February 4, 2009, 5:58 AM
> It is a 6 cavity unit and info tag says 230~235mhz.
> 
> Very small unit.. each cavity tube is about 1.5"
> square x 4" long. 
> Built like a Cellwave or Sinclair.
> 
> Made by Sigma Wireless Technologies in Ireland.
> 
> Tried sending a request to the company, but it has been
> sold and the 
> new company doesn't have any information.
> 
> Would like to possibly use it for a 10-15w 220mhz repeater.
> 
> Anyone here have any information on this unit?
> 
> Thanks
> Mike, KO9I
> 
> 
> ------------ --------- --------- ------
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 


 


      

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