I recently received 6500 HD receivers to swap out my older 4100 SD receivers.
I am running 2 tv sets in my house and have a dual horn feed on my satellite dish, with separate coax feeds to each receiver.
They actually sent out a technician who said my coax cable was causing the issues, with a poor connection. Also advised me that there is a satellite dish upgrade that I would also need to receive HD programming.
I find it hard to believe that the coax cable could be a problem, because I have a 95-100 % signal strength, but only on odd numbered transponders. When I check my signal strength on each of the even number transponders I get the message "Not Locked - Name Not Acquired" Each of the others is "Locked - Nimiq 91"
I tried to reverse the connections at the satellite dish, to see if it was just one side of the horn, but still doing the same thing.
My second tv set is fully functional, both even & odd transponders read they are locked with 95-100 signal strength.
When I swap the receivers from 1st to 2nd TV set the 2nd set is still only receiving odd transponders.
Seems odd to me. I cant believe that a poor connection could cause loss to only even numbered transponders.
I do not run a switch, & never had or needed one.
I guess the next step will be to try running a new coax cable directly from the dish to the receiver. There is a wall jack that connects the main cable from the dish to the receiver. Maybe there is something wrong there, but still funny why only on even transponders, with such a strong signal on the other ones