[SixClub] RE: [50mhz] 6M power divider

[Gary - N3JPU]

How does the loss compare to other power divider methods?

On my original stacked 6M antennas there was no LMR 600 and used RG-11
before I knew better. It did not hold up well and got very flaky with power.

Gary Mitchelson
N3JPU Montgomery Co. MD  FM19
USAF MARS and SHARES: AFA1PU/AFF1MD/AFF1M 
http://www.mitchelson.org/ 

-----Original Message-----
From: Lance Collister [mailto:w7gj at accessoutwest.com] 
Sent: Thursday, April 27, 2006 21:27
To: Gary - N3JPU
Cc: '50 MHz Reflector'; 'World Wide Six Meter Club'
Subject: Re: [50mhz] 6M power divider

 
Hello Gary,

I suggest you look at using two 1/4 wavelength pieces of 75 ohm LMR600.  
That will enable you to have a very low loss power divider capable of 
handling plenty of power. If you want to be extra safe about it, you can 
always use a T connector in the middle using a 7/16 DIN connector, and 
also get DIN connectors for the center end of each 1/4 wavelength section. 

You can trim the coax pieces to the proper length by using something 
like an MFJ Antenna Analyzer.  A quarter wave line section at 50.150 
will also be a half wavelength at 100.300 MHz.  If you short the far end 
of that line section, it also should look like a short at 100.300 MHz.  
Just keep trimming it off and shorting the end until it comes up to that 
frequency.  That is exactly the method I used to tune my phasing lines 
to a multiple of a half wavelength in my EME array.

GL and VY 73, Lance

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73 Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   
URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815