26e / 25.5e & 7w + 8w RECEPTION REPORTS IN THE UK
OUR UK RECEPTION REPORTS PROJECTED RECEPTION FOOTPRINT
Middle East satellites often prove popular not just for Arab channels but also free Movies in English & Englidh football such as English Premier League / 3pms etc,, These are usually difficult to receive in the UK & reception information is vital.
7.3w Eutelsat 7 West A & 8w Eutelsat 8 West B MENA beam
Minimum dish sizes (on area) for UK reception of Eutelsat 7 West A - / Nilesat 104
**formerly AB7- Atlantic Bird 7 & leased Tps of Nilesat 104 @ 7.3w ** All dish sizes are the area measure or W+H / 2 & exclude rim.
< 70cm min.... England South Coast East side.
B = 76-80cm
C =81-85cm (68cm verified 'lock level' reception on best TP only).
D = 86-1m
E = 1m-1.2m Revised (90cm verified 'lock level' reception)
F = 1-2.1.5m ... est
G = 1.5-1.8m ...est (1m on strongest TP- purplesat)
H = 1.8-2.4m.. est
I = 2.4m+ .. est
7.3w Eutelsat 7 West A (formerly AB7 & the leased TPs of Nilesat 104-107] & E8WA These dish sizes are minimum & should give reception most of the time but make no concession for bad weather or local interference margins & one should calculate a lager size if a higher margin is required. Dish sizes are based on surface area so width + height / 2 & not the offset measure or based on any manufacturer's or reseller's sizes or model numbers. These figures are also based quality BCS Satellite Engineering or Purplesat installations or equally quality installations. Any poor products &/or poor installation practices will alter these figures. Figures do not include all beams/ channels. Channels vary in power- these figures are based on the weaker but popular channels [movies & sport].. DVB-S2 / beIN SPORTS HD channels & OSN channels require c. 20%-30% larger for the same lock level.
7w Nilesat 102/ 101 retired from direct to home use
2m minimum ** est'
A =2m-3m **
B = 2.2m- 4m
C = 2.4m- 4m++ (2.4m confirmed in Birmingham with some margin)
D = 3m- 5m est
BADR4 @ 26e dish sizes are generally a % smaller on area than Eutelsat 7 West A @ 7.3w - however- in England & Wales on smaller dish size areas it then requires the narrower beam width of the larger dish due to the close by powerful 28.2e UK Sky/Freesat services, therefore the smallest size** may need to be adjusted up to 7.3w figures below 80cm for this reason- in Scotland the strength of 28.2/5e is actually generally weaker & so the larger Sky dish (zone 2/ 64cm) is used & so the bleed over from 28.2/5e is lessoned so although the signal on BADR4 is lower the lower bleed effect helps with the beam width issue.( 7w does have 2 satellites either side [5w & 8w] that are strong in the UK but far less channels so their noise image on 7w & 7.3w is different & more selected).
Different transponers vary due to their own footprint characteristics and the stength of nearby frequencies on 28.2/5e & whether they are on a north Europe or south Europe beam. There are also diffferent beams on BADR4 - the BSS beam is the stronger up through the UK - next is the FSS beam which falls away a little more than the BSS beam. The MBC beam is depicted by Arabsat as having a very tight MENA footprint but we think it is similar to the BSS footprint but does have very strong interference from 28.2/5e on that frequency so does require either a narrower beam width of a larger dish &/or moving the azimuth slightly further to the west to optimise. There are skew & el issues with 28.2/5e v 26e.
68cm minimum ** BSS BEAM .... (in brackets) = Arabsat figures = clear skys - rain margin
A =75cm ** (90cm-1.2m)
B = 78cm **(90cm-1.2m)
C =80cm (90cm-1.2m) (we've done it on a Z2 Sky dish [64cm on area])
D = 83cm (90cm-1.2m) (we've done it on a Z2 Sky dish [64cm on area])
E = 85cm (90cm-1.2m)
F = 88cm (90cm-1.2m)
G = 90cm (90cm-1.2m)
H = 1m (1.2m-1.6m)
I = 1.2-1.5m (1.2m-1.6m)
(NB: Arabsat's figures are regions A to G= 90cm (1.2m) H-I= 1.2 (1.6m) (clear sky)/ (rain margin)- we usually beat all of their figures by a large margin all over the UK). These are in general for the BSS beam & MBC frequency- the FSS beam has a higher drop off going north.
BADR 6 & 7 @ 26e
1.8m minimum ** est'
A =1.8 -2.4m** confirmed
B = 2m - 3.6m confirmed
C = 2.4m -4.5m (2.4m confirmed with 10-15% margin)
D = 5M+ est'
BADR 5 @ 26e reception reports in UK
1.8m minimum ** est'
A =1.8 -2m** est
B = 2m- 3.6m est
C = 2.4m -4.5m (2.4m confirmed)
D = 5M+ est'
Es'Hail @ 25.5e (Bein Sports/MENA beam) reception reports in UK
(for Es' Hail EAST BEAM see BADR4 reception)
1.8m minimum est (not confirmed)
A =1.8 -3m** est (not confirmed)
B = 2.4m- 3.6m est (not confirmed)
C = 3.6m -? est (not confirmed)
IMPORTANT NOTES About DIFFERING BREAK UP LEVELS ON DVB-S -QPSK DVB-S2-8PSK/- most HD etc.. 1/2 2/3 3/4 & 5/6 FECs etc.. & daily sun effect signal cycles.
These figures are for good installations in average interference areas & average fringe EIRP for SD/ DVB-S QPSK reception with SR of 27500 & 3/4 FEC- areas can differ on interference either with interference quiet rural, coastal locations or interference noisy large area [city &/or industrial influence] locations & signal cold spots & hot spots of fringe reception.
In general figures are for DVB-S/ QPSK- FEC 3/4 & Symbol rate of 27500 .... allow 10% larger surface area for FEC 5/6 & 10% smaller for 2/3 FEC & 30% larger for 8PSK on DVB-S2. Some HD on DVB-S can be received with 20% smaller/ some 8PSK require even larger even though the signal looks similar - very high or very low symbol rates can also add another variable... in the above case it's higher (& lower) break up levels we are describing & not signal or quality levels so if a dvb-s channels @ 3/4 fec 27500 st qpsk breaks up at 50% on your receiver - an 8psk of the same strength may actually break up at 60%.
DIFFERING SIGNAL BREAK UP LEVELS! IIIIIIII
GENERAL GUIDES BASED ON A BASIC STB'S QUALITY METER X BREAK UP THRESHOLDS
BREAK UP LEVEL >> 0% 25% 50% 75% 100%
------------------------------------- ---------------------------------------- ---------------------------------------- -----------------------------------------
DVB-S2 8PSK X/X FEC SYMBOL RATE . RELATIVE BREAK UP ON EIRP of 50dBW
DVB-S2 8PSK 1/4 FEC 27500 SR = 10% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII est'
DVB-S2 8PSK 1/3 FEC 27500 SR = 15% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII est/
DVB-S2 8PSK 1/2 FEC 27500 SR = 18% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII (-20% DVB-S)
DVB-S2 8PSK 3/5 FEC 27500 SR = 45% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII est'
DVB-S2 8PSK 2/3 FEC 27500 SR = 59% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII (-20% DVB-S)
DVB-S2 8PSK 3/4 FEC 27500 SR = 62% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
DVB-S2 8PSK 4/5 FEC 27500 SR = 77% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII est/
DVB-S2 8PSK 5/6 FEC 27500 SR = 75% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII (-20% DVB-S)
DVB-S QPSK 7/8 FEC 27500 SR = 55 % IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII (+/-0%DVB-S only!)
DVB-S2 8PSK 8/9 FEC 27500 SR = 97% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
DVB-S2 8PSK 9/10 FEC 27500 SR =98% IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
FOR DVB-S/QPSK SUBTRACT 20% TO THE BREAK UP LEVELS
FOR DVB-S2/QPSK SUBTRACT 30% TO THE BREAK UP LEVELS
FOR SYMBOL RATES <2000 ADD 20-30% <10000 ADD 10%>40000 ADD 10%
Some DTH around the arc with varying fecs v s1-s2 q/8-psk & srs & break up levels.
SAT CHANNEL _ FEC ______ CUT OFF POINT (mod perameters)
10e ORTC ......1/2..............8% (dvb-s/qpsk 1/2)
7.3w Qatar.........................16% (dvb-s2/qpsk 3/4)
26e KTV HD.......................18% (dvb-s/qpsk 3/4)
23.5e radio1......................20% (dvb-s2/qpsk 4/5) NB sr = 1409
5w rmnc........7/8................21% (dvb-s/qpsk)
28e BBC SD........................22% (dvb-s/qpsk 5/6)
28e BBC HD...2/3...............25% (dvb-s2/8psk)
Sky Dch.........9/10.............26% (dvb-s2/qpsk)
0.8w Lifstyle......................27% (dvb-s/qpsk 7/8)
28e ITV HD..3/4.................30% (dvb-s2/8psk)
4.8E EG.........5/6................35% (dvb-s2/8psk) sr = 1445 = slow difficult lock
23.5e RMT...9/10...............41% (dvb-s2/8psk) only channel on a 78Mbps tp therefore lower than expected
4.8e EST.......8/9................60% (dvb-s2/8psk)
meter readings are relative for both above tables - 0-65 & 0-100
THERE ARE MANY OTHER COMBINATIONS & FACTORS INCLUDING
LOWER OR HIGHER POWER / noisy / busy satellites / TPs with transponders on the opposite pol' / symbol rates/ overall power/ cleaner or dirtier unstable transmissions/ over stretched bitrates & shared dynamic bot rates etc...
SEE ALSO STRONG CHANNELS LIST <<HERE>>
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