Using BSC621-2 with TVRO and FTA C/KU

AdamHannah · #1 (**permalink**) 03-09-2007, 03:28 PM

Hi. I was looking at the BSC621-2 C/KU LNBF BSC621-2 C KU Band Prime Focus LNBF and have a few questions about it. I know that it can be used in conjunction with a big dish (I finally got me a big dish now...a six footer) to view FTA, but can this LNBF also work for regular TVRO C/KU without any problems? I read somewhere that with this LNBF, the polarity is controlled by voltage and not a servo motor. So, how would this unit change polarity with a regular analog C/KU band TVRO receiver (mine is a Uniden UST-4800). Thanks for your help. Basically, what I am wanting is an all-in-one LNB that will work for both TVRO C/KU and FTA C/KU.

rainman · #2 (**permalink**) 03-09-2007, 03:56 PM

you can always slave your analog receiver off you fta receiver that way the fta receiver controls polarity.

elgemcdlf · #3 (**permalink**) 03-09-2007, 04:07 PM

Check the settings in your analog receiver. My DSR922 will allow lnbf's which is what the BSC621-2 is. The problem with the 922 and the BSC is that the BSC is a universal Ku lnbf and the 922 wants standard. If it will not allow it then you are down to slaving off of your DVB MPEG2 receiver as Rainman stated.

wejones · #4 (**permalink**) 03-09-2007, 05:59 PM

Quote:

Originally Posted by AdamHannah

Hi. I was looking at the BSC621-2 C/KU LNBF BSC621-2 C KU Band Prime Focus LNBF and have a few questions about it. I know that it can be used in conjunction with a big dish (I finally got me a big dish now...a six footer) to view FTA, but can this LNBF also work for regular TVRO C/KU without any problems? I read somewhere that with this LNBF, the polarity is controlled by voltage and not a servo motor. So, how would this unit change polarity with a regular analog C/KU band TVRO receiver (mine is a Uniden UST-4800). Thanks for your help. Basically, what I am wanting is an all-in-one LNB that will work for both TVRO C/KU and FTA C/KU.

Most of the newer (ie less than 15 years old) analog receivers can control either a polarotor or a voltage controlled LNBF. I'm not familiar with the 4800 though. I have a UST 6000, which is about 18 or 19 years old, and it won't control an LNBF, so you'd have to slave like Steve said. But I think that the 4800 is newer than the 6000, so there is a good chance it would work. Either way, you'll probably be slaving on receiver to the other, so it doesn't matter too much.

Sadoun · #5 (**permalink**) 03-09-2007, 11:59 PM

I recommend the BSC621 (has a standard KU lnbf) not the MSC621-2 (which has a UNIVERSAL KU LNBF) for you.

See #1 here: http://www.sadoun.com/Sat/Order/LNBFS/C-Band-LNBF.htm

rainman · #6 (**permalink**) 03-10-2007, 07:28 AM

Quote:

Originally Posted by wejones

Most of the newer (ie less than 15 years old) analog receivers can control either a polarotor or a voltage controlled LNBF. I'm not familiar with the 4800 though. I have a UST 6000, which is about 18 or 19 years old, and it won't control an LNBF, so you'd have to slave like Steve said. But I think that the 4800 is newer than the 6000, so there is a good chance it would work. Either way, you'll probably be slaving on receiver to the other, so it doesn't matter too much.

the 4800 should do it Bill I have the 4600 and it will control a lnbf just have to add a switch.

wejones · #7 (**permalink**) 03-10-2007, 08:36 AM

Quote:

Originally Posted by rainman

the 4800 should do it Bill I have the 4600 and it will control a lnbf just have to add a switch.

I'm curious, what kind of switch? Most of the newer receivers will control a lnbf without any switch. My 6000 won't, but it has a mode where it goes between 14 and zero volts, and the second normal mode where it is always 18V. I have temporarily run an LNBF off this receiver by switching back and forth between the 2 ports (slaving to a 2nd receiver for the actual video). I assumed that with a bit of switching that I could probably control an LNBF if I used BOTH ports, and used the 14/0 port to control the switching, but I wasn't sure what kind of switch could be used to do this (I don't really WANT to do this, I just wanted to know that I could if I wanted to). I have an old RS voltage switch, but it uses external wires. I assume there must be some that switch via the voltage on the coax. I guess I could look through old boxes and find the manual for my 6000. It probably explains it all.

rainman · #8 (**permalink**) 03-10-2007, 10:38 AM

Quote:

Originally Posted by wejones

I'm curious, what kind of switch? Most of the newer receivers will control a lnbf without any switch. My 6000 won't, but it has a mode where it goes between 14 and zero volts, and the second normal mode where it is always 18V. I have temporarily run an LNBF off this receiver by switching back and forth between the 2 ports (slaving to a 2nd receiver for the actual video). I assumed that with a bit of switching that I could probably control an LNBF if I used BOTH ports, and used the 14/0 port to control the switching, but I wasn't sure what kind of switch could be used to do this (I don't really WANT to do this, I just wanted to know that I could if I wanted to). I have an old RS voltage switch, but it uses external wires. I assume there must be some that switch via the voltage on the coax. I guess I could look through old boxes and find the manual for my 6000. It probably explains it all.

my undien 4600 says it requires a 0/12 volt switch Bill.