Kiran Kumar M wrote: > > Hai, > > This is out of topic to Cisco. But it is related with > Communication, so I > dared to post this in Cisco group. I think knowledgable persons > in > Networking won't mind. > > If any one having experience in Satellite modems please help > me. We have > one Comstream CM701 modem, in that we are unable to configure > the > frequency, can any body guide me how to configure frequency in > Comstream > CM701. > > Thanks & Regards, > Kiran > >
Kiran, I can't help you with that particular model much. I can offer you some very basic insight thought. Some modern satellite modems do in fact interface directly the the antenna electronics (that is to say that they have an RF input/output). "Traditional" satellite modems have a digital interface on one side and an Intermediate Frequency (IF) interface on the other. It's then the responsibility of an up/down converter pair to modulate the IF onto the RF. So many satellite modems can't be "tuned." They often have a fixed 70 MHz IF (or some other frequency or possibly even two or three selectable frequencies). The information in this link, which I found in a yahoo search, would suggest that the CM701 is, in fact, an IF modem with 70 or 140 MHz interfaces to up/down converter systems. Regards, Scott Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65859&t=65830 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
