The focal point of a parabolic reflector can be calculated by squaring the radius and dividing this by 4 times the depth of the dish. accurately measure the dish depth at 3.8 meters and then divide 3.61 by the result
Because you are also trying to receive two different satellite services the...
I am trying to source a way of connecting 19 sky + receivers to a multiswitch in Europe. The receivers require 2 coax feeds thus 38 outputs are required? I do not know of a switch that size and the correct way to connect the two lines from each receiver and thus require some help on possible...
Thanks goes out to every reply received.
I solved the problem to locate the common with the resistance test and then simulated a change in course to log the step updates to ascertain the A,B and C connections
Once again thank you to all
Mycroft
Engineers
I have four conductors carrying the A,B,C and common from a repeater gyro board. The board is inaccessible and the outputs are required to be connected accordingly
how can I be sure using only a meter to locate the common cable? I have measured across the pairs but do not find a...
Sirs
Following a recent service call to a marine stabilised TVRO antenna, I experienced a strnage reception situation.
The C band feed assembly was linear and calibrated to receive CNN, TNT and CNBC on vertical polarity. This was working fine but ESPN was also reported to being vertically...
Hi IRstuff
Thanks for a speedy reply. OK, the system is on a vessel and is positioned about 15M away from the S band radar. Naturally post installation the horizontal LNB kept being taken down by the radar so radar filters had to be fitted. This prevents the LNB's being fried but the video gets...
It has been reported to me that a 2.8m C band antenna is experiencing S band radar interference despite the fact that radar filters are fitted. Is this possible and if so how come considering filters are passive? The report says that the system did not have interference for a few weeks after the...
