[NLRS] Phasing cables for 2m

[Jon Platt]

I defer to those who know more, but if you are using a power divider I think that all you need is two equal lengths, they don't have to be some integer of a 1/4 wavelength because your using a power divider.  Best to cut the two lengths from the same spool so that the dielectric constant is constant.  At 2m, a wavelength is about 80 inches, so my thought is that if the phasing lines are within about a 1/10 of wavelength of each other or better, its probably good enough.  That would be about 8", or with a dielectric constant of 0.66, about 5".   I'm thinking that if your two phasing lines are cut from the same spool and are within a few inches of each other that you should be good.  That is an advantage of using a power divider.   

For those with more knowledge, corrections welcomed !

73, Jon
W0ZQ
 
 
-----Original Message-----
From: Kirk P <inservice2him at hotmail.com>
To: NLRS <nlrs at mailman.qth.net>
Sent: Wed, Sep 14, 2016 5:09 pm
Subject: [NLRS] Phasing cables for 2m



Good afternoon!


VHF/UHF Newbie question (After 39 yrs as ham..HI)


As noted in previous emails to group, Im putting up 2 - 2M12 yagis on AZ/EL mount for EME.


I have power divider but need phasing lines..I looked at M2 web site and they wanted over $250!


What is the secret to making these myself? How "special" are they really. Wont 2 equal lengths of low loss feedline work?


Please help me understand...


KK


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