Jim, Avalon Networks who set up an ADSL network in Sioux City, Iowa has come out with a report indicating some negative things about DMT that are contrary to previous information about DMT. Take a look at the report when you get a chance and see what you think: Message 3656372
<<In general, Avalon found that products based on the standard-based DSL technology, known as discrete multitone (DMT), were more susceptible to speed drops due to low-quality circuits and long lines than were devices using the alternative, carrierless amplitude modulation (CAP) technology. But DMT seems to be maturing rapidly. Lacey said a prototype DMT-based modem from Pairgain Technologies, Inc. worked as well as the best performing CAP modem, Westell Technologies, Inc.'s FlexCap2...
Avalon also wanted to know whether modems would drop connections over periods ranging from 24 to 72 hours, so the company measured how long it took to re-establish dropped connections. That period ranged from 12 seconds for Pairgain modems to 35 seconds for modems from Amati Communications Corp., now part of Texas Instruments, Inc.>>
All the best, Michael |