Luke - 20 minutes ago »
tash - 5 hours ago » Would this continue to record previously scheduled programs ... ?
Would both locations have the same number of LNBs available?
Presume you mean at least two cables from the same lnb ?
Very few have more than 1 lnb mounted on the same dish.
As the OP already has Freesat. Chances are it uses at least a lnb with 2 or 4 outputs with two used.
https://onetransistor.blogspot.co.uk/2015/06/make-multifeed-lnb-holder-for-dish.html
It's physically impossible to mount two lnb's on the same dish both pointing at 28.2E.
The offset to mount them means the focus point has to be shifted East or West depending on which side they are mounted. Also the elevation has to be adjusted to maintain focus on the geosynchronous arc visible from the UK.
All the stationary satelites that appear stationary from the UK have to be approx 2200 mls above the equator and orbit the Earth to exactly match the Earths rotation in time and direction.
28.2E actually means 0 degrees (North or South, take your pick
The satellite group is in fact 0 degrees Latitude (directly above the equator) at 28,2E of the Greenwich meridian.
Those of a curious nature with Google Earth can type in these co-ordinates and locate the exact point on the Earth surface where a dish to get the signals would point vertically upwards
Don't expect to get anything by the way from here, the RF beam is focussed in a specific direction and shape.
If anyone is interested in this a separate technical thread might be appropriate.
A satellite at 0 deg will be at the highest point visible, the further East or West from 0 deg the satellite elevation will be lower.
To get 19.2 E the lnb focus has to be higher so on the same dish the lnb for 19.2E has to be on a bracket that lowers the elevation as well as providing the correct azimuth (direction) correction (mirror image).
A dish is in fact a parabolic mirror for microwave radiation just like a optical reflecting telescope focuses light on a eyepiece
Adding more means that the extra ones are used to access other orbital points, typically in the UK 28.2E and 19.2E are pretty popular. No doubt due to RTE's Free To Air Grand Prix coverage following Sky's hijack of the coverage.
| Wed 28 Jun 2017 20:01:36
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