Signal Strength Question

[morseman]

Hi all, can you tell me if this is the norm with a dish antenna. I have a 100% signal on some frequency's but down to 70%
on others, the dish is 80cm with a clear unobstructed view. I know that the dish has more gain the nearer it comes to the
resonant frequency but is 30% normal or is it re-alignment time,also the gain jumps about from 70% to 83% on some channels.
If it is re-alignment time what is frequency or channel should this be done on.

TIA

 

[Mark5562]

Depends on the satellite being transmitted from (Astra 2a) also frequency of the channel and polarisation, the signal strength output can also affect signal strength, weather is a big factor too. Even leaves on trees can lower signal quality. Hope this helps. Only advice I can offer is move your dish as high as possible.

 

[siilver]

Yea on the freeview channels 100% I have but on some channels I drop down to 90 odd

i heard euro news I think the channel is its no a neighbor satellite and is meant to have low signal. So it's meant to be a good channel to test on signal strength

 

[morseman]

Thanks for the advise guys, i will have a look at the euronews channel and see whats the signal is like before the ladders come out.