[Moon-net] Antenna for 432 MHz
peter blair
g3ltf at btinternet.com
Fri Jul 11 10:35:08 CDT 2008
Ed, 20 ft dish beats 4 yagis hands down, make the dual dipole feed rotatable
and you will do 3dB better than the H/V feeds when the polarisation is at 45
degrees.
Feed details are in the Trenton proceedings.
73 Peter
----- Original Message -----
From: "Edward J White" <wa3bzt at verizon.net>
To: "Moon Net List" <moon-net at list-serv.davidv.net>
Sent: Friday, July 11, 2008 3:26 PM
Subject: [Moon-net] Antenna for 432 MHz
> Hi Gang:
> well the base concrete has been poured and is in the process of harding
> Now I have a question one of the bases is for a 20 foot dish (18 foot
> was what it measured but I think I can add another two feet) also feed
> the septum feed for 1296 MHz. The other base has Rohn 55 one section in
> it for either yagies or 12 foot dish.
>
> Now the question: what would give me better gain 4 Horz. yagies or the
> 20 foot dish on 432 MHz? On the dish I hope to build a H V dipole feed
> something like HB9Q used ( He has a very big dish) which I also think Al
> W2UYH is using the same for his Smaller dis feed.
>
> OR is there something else I can do.
>
> If the dipole feed will work better I will put a 12 Dish on the Rohn and
> probably go for 5.7 GHz and maybe 10 GHz when I get the equipment?
>
> Any ideas and help?
>
> Ed
> WA3BZT
> DELAWARE FM29ep
> 0n 144.MHz 4 x MXP20 GU78B 1.5 kW. CW / JT
> soon 432 MHz Antenne ?? 8938 1.5 kW
> soon 1296 MHz 20 foot dish septum feed, 300 to 500 W.
> Later 5.7 GHz
> Later 10 GHz.
>
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