To: Dan B. who wrote (321 ) 4/3/1998 7:23:00 PM From: david waitt Read Replies (1) | Respond to of 638
Hi All, I have some questions I have read a lot (Not all, I admit) of the posts to this thread and I have seen amazingly little on the way the system works! So let me ask this What are the operating frequencies of the system? Is the system asymmetric? IE, a fast down-link and a slow up-link. Are they using Part 15 frequencies? ( 902 - 928MHz and 2400 - 2483.5 MHz) or are they using licensed frequencies? If they are using art 15 frequencies, they are limited to a transmit power of 1 watt. This being the case, what do they claim as a typical distance from the transmitter to the modem to still allow the throughput they are claiming? What throughput are they claiming? I have heard 64 kbps to T1 speeds (1.544 Mbps)? If they are Part 15, how many channels are they using in their hopping sequence and how do they plan on getting a T1 data rate through the maximum allowed FCC BW? If they are using Licensed Frequencies, What are they and how long before they recoup the enormous investment of purchasing the spectrum. How many users per "cell-site" are the claiming to be able to handle. What is there estimate as to how much training and effort will have to be put into training ISPs to maintain a wireless data network, or will MEME maintain the network. There is a lot of questions here that I have not seen ANY discussion on. And we all know how useful their web page is. So, I turn to all of you in SI land. I realize people may think that I am out to learn MEME company "secrets" for Metricom. But, being an RF Engineer, I really am curious as to MEME's approach. I, however, am still betting on MCOM. Thanks for any help. David david@metricom.com