|Satellite Antenna - C-Band, 3.8m (12 foot) 2 degree rated, solid
|The Dial Global supplied receiver is designed to operate from a
professional quality solid 3.8 meter antenna. .
following specifications are considered to be the minimum level for
||3.8 meter (approx. 12 foot
||41.0 db at mid C-band
||>30 db on axis
||Solid material, fiberglass or
|Of course an antenna needs to be solidly mounted. Please see the
manufacturers requirements and recommendations.
|Satellite: AMC-8 at orbital location of 139
degrees. Polarization is Vertical.
|Some Antenna recommendations mentioned for their consistently
good performance: Comtech 3.8m, Prodelin 3.8m and Patriot
3.8m. Generally, antennas larger in size (such as
4.5m) will exceed the recommended specifications, those smaller will
- C-band type PLL
|The modulation techniques used is QPSK and requires the LNB to
be a Phase Locked Loop type,
not to be confused with lesser quality "digital ready" units. The
"digital ready" LNBs do not have the required LO frequency
stability required for audio reception. This generally manifests itself as
either a failure to lock to the signal or if the lock is achieved, audio
dropouts from the excessively high bit errors that result.
||+/- 50 Khz
|| 1 Khz
|| 10 Khz
|| 100 Khz
||+15-24 VDC @ 300-400 ma
||15k to 45k
|Our experience with the Norsat 3000 series has been excellent. These units are reasonably priced and
readably available. Please remember to weather proof the connection. Placing
the LNB under a rain "bucket" is not necessary, and really does not
eliminate the need for weather proofing the connections.
Dial Global Radio Networks receivers are designed to operate with up to 250ft
of satellite grade RG-6 coaxial cable. . Longer cable runs are possible,
however additional cable loss will need to be allowed for and can still meet
the requirements by substituting lower loss cables and/or adding some gain.
It is important to use quality cable and properly installed connectors. And
finally, the most important step is the weather proofing of the
excellent RG-6 coax is the Belden #9248, which has been on the market for 25+
years. Features excellent shielding and also low resistance for the DC power
to the LNB. For assistance regarding longer cable runs contact Dial Global
Network Services for additional suggestions.