I have a 30 year warranty on my roof. It only covers the shingles, not the labor. The shingles are not available anymore. The company that built the house is long gone. 22 years and the roof looks good still, but I know the day will come.
High FEC rate SES 1 (101W)
- Thread starter Andyboy90
- Start date
- Latest activity Latest activity:
- Replies 24
- Views 4K
- Status
8' is the minimum for 2 degree separation between adjacent satellites. A larger dish will provide the required gain for higher modulations and error correction ratios. The higher the FEC, the less error correction is provided. 8psk and higher modulation requires a larger and efficient dish for reliable reception. I would agree that the minimum that you should consider is 10'.
Many free 10' dishes on Craigslist, begging for a new home!
i see that you know alot about this so maybe you could answer my question, i was doing some research and saw AMC 11 on 131W and kinda like this one. satbeams recommend 5 ft dish for my location, do you think 8 ft will suffice for this one with all the error correction stuff?
131w has a few shopping channels, but most everything is encrypted. Without considering the 133w satellite interference and use of overlapping frequencies, the DVBS2 cable distribution channels would be received on an 6-8' dish.
Ignore the reflector recommendations on Satbeams. They are not based on reality. The site calculation is to obtain a DVBS transponder run at maximum power, full width transponder and a liberal FEC. Rarely would you find this robust of transponder.
The reflector has two primary functions: directivity and gain. 8' is the minimum to reject adjacent satellite interference and a 10' has even better rejection. Typically, the larger the reflector the narrower the beamwidth and the better the rejection of unwanted noise that is off axis.
A 8' dish will typically have enough gain for DVBS2 8PSK at most FEC ratios. The higher the FEC ratio, the requirement for more error free data increases. Example: a 10' dish is the minimum gain for most 16apsk services with their more aggressive error correction requirements.
A better quality feed and LNB (or LNBF) will make some difference, they cannot increase the gain or quality of signals that are not present. While optimized feeds and LNBs (LNBFs) are important and part of the equation, the reflector size and efficiency is the major factor.
Ignore the reflector recommendations on Satbeams. They are not based on reality. The site calculation is to obtain a DVBS transponder run at maximum power, full width transponder and a liberal FEC. Rarely would you find this robust of transponder.
The reflector has two primary functions: directivity and gain. 8' is the minimum to reject adjacent satellite interference and a 10' has even better rejection. Typically, the larger the reflector the narrower the beamwidth and the better the rejection of unwanted noise that is off axis.
A 8' dish will typically have enough gain for DVBS2 8PSK at most FEC ratios. The higher the FEC ratio, the requirement for more error free data increases. Example: a 10' dish is the minimum gain for most 16apsk services with their more aggressive error correction requirements.
A better quality feed and LNB (or LNBF) will make some difference, they cannot increase the gain or quality of signals that are not present. While optimized feeds and LNBs (LNBFs) are important and part of the equation, the reflector size and efficiency is the major factor.
Most of the 4k channels @ 101W are now encrypted in BISS (ie NOT FTA). I haven't had my dish working in the last two months but NASA was still ITC back then.
It might not be worth it it for one or two channels.
luke rizzuto III
SatelliteGuys Family
- Status
