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Configuration
After you have gotten all your equipment together, you will need the following
information to configure your receiver for the GEONETCast Americas satellite feed.
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| PID | 4201 ** |
| Satellite | IS-21 |
| Transponder | 7C |
| Polarity | Vertical |
| Frequency | 3840 MHz |
| Symbol Rate | 27.69 Msym |
| FEC | 7/8 |
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To accurately point your antenna, first determine the latitude and longitude for the antenna site. This is one of many pages that will help you find that information: http://www.satsig.net/maps/lat-long-finder.htm.
The satellite IS-9 (PAS-9) is at 58 degress West. This can be confirmed at http://www.lyngsat.com/intel9.html.
Use this satellite finder to obtain pointing information for your antenna. Get azimuth and elevation at http://www.satsig.net/ssazelm.htm
** Some receiver cards require the PID to be inputted manually through software provided by the manufacturer. If you are having trouble receiving, consider contacting the manufacturer for further instructions on proper configuration of your card.
Receive Terminal Specification
Information on Local RF Interference, Security Software
and Personal Computer Loading
GEONETCast America’s C-Band transmission may be affected by local interference from airport
radar, television transmitters or other unregulated RF noise sources. In this case installation of
a RF band-pass filter between the feed horn and the LNB has proven to reduce or even to eliminate
the interference, depending on its signal strength. C-Band radar elimination filters, such as Series
7893D/7894D, from Microwave Filter Company, Inc., (http://microwavefilter.com/tvrointerference.htm)
have been demonstrated effective at the NOAA installation.
NOAA, representing GEONETCast Americas, recommends setting up the GEONETCast PC only as a Reception
Station with an optional FTP/File Server functionality, and not to install and run other application
software on the Receiver PC. Peaks in disk or bus usage can interrupt the DVB data reception and thus
cause non-recoverable data losses.
We also determined that installed security software can have an adverse affect on the operation of
the receiver PC. Some of these programs perform periodic and random disc scans which can monopolize
disk and CPU resources.
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