[amsat-bb] Antenna Rotor and yagi Antenna selection
wageners at gmail.com
Thu Feb 4 13:14:08 UTC 2016
for suitable antennas.
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
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> are solely those of the author, and do not reflect the official views of
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
More information about the AMSAT-BB