[Moon-net] 1296 Next question...

[Jordan]

Is there someone out there familiar with the M2  23CM35A Yagis..?

I find the lowest SWR is with the driven element upper loop bent towards the 
1st director as opposed towards  the reflector, as shown in the 
instructions.
One yagi tunes nicely with about a 10 degree forward slope and the other 
tunes with about a 45 degree forward slope... I've calipered all elements, 
and have changed the length of the 1st director as per the 07-08 update from 
M2. I am tuning them separately with the same piece of cable, and with 31" 
of separation as per an earlier update.

I have a hunch it doesn't matter, I find it odd though because I have the 
first pair mounted upside down, so the top is actually the bottom right 
now.... Hopefully this will not lead to confusion...!

73..Jordan....

----- Original Message ----- 
From: "Jordan" <outposter30 at shaw.ca>
To: <microwave at lists.valinet.com>; <moon-net at list-serv.davidv.net>
Sent: Sunday, July 27, 2008 3:29 PM
Subject: Damp cable help...


>
> Problem solved here, and I'd lik to thank everyne for their suggestions 
> and thoughts....
> It turns out that the worst part of the cable was the top end, and that I 
> hadn't noticed the corrosion on the center conductor in the twilight last 
> night.
>
> Using my tube cutter, I split the cable every 6 inches, and bent it open 
> so I could see the condition of the center conductor... the bottom end 
> needed 18 inches removed, but the top end required the last 7 feet be 
> removed before the center conductor  was corrosion free.
> The leakage was from the connector ends in both cases as there were no 
> signs of patina or disoloration on the shield.
>
> The leakage would probably have had to be prior to my getting the cable, 
> as there is too much corrosion to have occurred in the 6 weeks I've had 
> the cable. It's possibly the reason it was removed from service.
>
> After replacing the connectors,  when I check the cable using a Motorola 
> 60 watt load at the other end, I have 14 watts into the cable, and .3 
> watts return @ 1296. ~ 1.34:1  and I'm not sure of the return loss of the 
> load @ 1.3Ghz.
>
> Tomorrow I'll be back on the antennas.... 73...Jordan....