Tech question - 721 + 211 signal loss

[avman]

I recently swapped out a legacy lnb for a DPP+ twin on my Dish 500. When I tried to hook up my two receivers, a 721 with a Dish seperator and a 211, only one receiver at a time would work. There is no external switch or power inserter being used. Do I need a switch? Both receivers are Dish Pro. The cable runs are not too long . If the cable is RG-59 can that be the issue?

[Bill R]

Did you run a switch test on each receiver after you installed the new LNB?

RG-59 could cause a problem but my bet is that you have RG-6 if your orginal install has been in the last 10 years.

[avman]

Yes, I ran a switch test on each receiver. The original install was( I think) seven years ago.

[tnsprin]

Did you run a switch test on each receiver after you installed the new LNB?

RG-59 could cause a problem but my bet is that you have RG-6 if your orginal install has been in the last 10 years.

Many installers were still not using RG-6 much more recently than that. And some RG-6 was often not good to at least 2500mHz, necessary for DPP and seperators.

[scooper]

RG59 is NOT recomended for DBS applications, especially since you're now using DishPro. Too much signal loss above 1000 MHz (1 GHz)