[amsat-bb] Antenna Rotor and yagi Antenna selection

[Stefan Wagener]

Hi Shakeel,

Please see:

http://www.m2inc.com/categories/amateur/antennas/vhf-uhf-microwave-antennas/satelite-products.html

for suitable antennas.

and:

http://www.rfhamdesign.com

for suitable rotors in case you still decide to stack antennas which should
not be needed.

73, Stefan, VE4NSA

On Wed, Feb 3, 2016 at 9:45 PM, shakeel -ur-rehman via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> We are in process of development of Student Satellite Ground
>  station for amateur satellite. we need to select rotor and antenna s for
> amateur satellite ground station. we initially worked that we need 17db
> gain for our polarized antennas for this purpose we need to have stacking
> of antennas in order to achieve the desired gain in UHF and VHF band.
>
> can anyone know from where we can purchase antennas having
>
> 1.VHF band (144 – 146 MHz) gain 17 dBi transmit and in for receive 17 dBi
> in UHF band polarization Circular
>
> 2. we narrow down two rotors from yaesu a) G5600   and b) G2800 rotor
> which will be separately required elevation and azimuth.
>
> Now the specific queires are
>
> Question 1:we dont know where to find antennas of 17dbs. or we need 3
> antenna in stacking mode having accumulated gain of 17db.
>
> Question 2: we dont how how to finalize rotor. we have ICOM 9100 and we
> are currently tracking satellite manually.
>
> Question 3: how to calculate that these rotor will be sufficient for the
> load of our antennas.or the g5600 will be enough for stacking of three
> antenna's load.
>
> any help much appreciated
>
> Kind regards
>
> shakeel
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