A friend of mine on Ch*rus MMDS recently bought a 500T. He has an existing analog mmds setup.Its about 12 years old. His analogue signal is excellent as he is very near the transmitter ~1 mile and has clear line of sight. I connected up the 500T and all the channels came in at 99% snr but the ber is huge,the picture keeps on breaking up. I measured the signal strength on a meter and its very strong. I thought initially it might be too strong so I tried a variable 20db attenuator but that made no difference. I checked all the cabling and connections ,they are fine. The analogue signal is perfect but the digital is unwatchable. I tried a Digivox-T ,the signal was ~70% on it but it would drop alot. Its odd that the analogue signal is so good and I cant more than a poor digital signal. I had a look at his aerial ,its the Lance 24db type and the downconverter looks like it supports digital , (t doesnt have the box on the back of the aerial like some of the older ones do ) Anyone have any ideas what it may be ?
I was thinking that myself but I'd prefer to be sure. The aerial is on top of a 3 storey house which is difficult to get at. I think I might move it inside his attic alltogether but I'm not 100% sure if it will work there,it prob will as the signal strength is very strong. I actually put a 20db block attenuator on the analogue feed and it was still a very good picture.
I tried an aerial in the attic,no good ,couldnt get a strong enough signal.Only got a weak analogue signal in there. Would a booster do me any use ?
