sky 1 breaking up

[patch]

i have 3 boxes been running ok for ages , all of a sudden sky one is breaking up on freq 682 signal down to 67% all other freqs are ok and sky one is working on other two boxes on same freq . i have adjusted freq by 0.5 etc but still 67% . any ideas to why its just one box and one freq and how to fix the problem . thanks

[marky_811]

might be a loose connection somewere or check another box on the same feed.signal strength is to low has to be above 80%

[patch]

ok i have tried another box and thats the same , picture breaking up on one freq signal is 82% on freqs up to about 500mhz then it starts dropping to 70% . it may be because of the longish cable i have had to lay . would a booster help? if so which one and where from as i dont want to spend too much as it may be going off shortly . thanks

[TheCoder]

Its fairly standard for higher frequencies to be attenuated more by long cable runs. Its also possible that the VM techs have simply set the higher frequency transducers for lower output. You could use a frequency slope compensating amplifier but probably not worth the expense at this point.