Mike, 2 1/2 years ago I suggested 2 ambient antennae. I have not heard any response from CASSPER (they have filed for patent with a single ambient antenna configuartion). Further, they have been so evasive in disclosing the DSP algorithms/function, that I am no longer enthusiastic about this rather promising technique.
Regards, VG > -----Original Message----- > From: Mike Murphy [SMTP:[email protected]] > Sent: Tuesday, March 21, 2000 3:44 PM > To: '[email protected]' > Subject: RE: Ambient Cancellation Device for OATS > > > Jerry and the group, > > I've had the demo as well (two actually...one at my office and one at an > OATS). It's an exciting product in theory and in some cases it performs > amazingly well. In other cases it's very finicky and would require > multiple > ambient antennae and/or adjustment of those antennae in order to give the > receiver the differential it needs to perform the DSP. If the CASSPER > system > jumps the one hurdle of excessively strong ambient signals, then it can't > handle multipath problems at some other frequency (or vice-versa or, once > again, the possible answer is to tediously finesse the positions of the > antennae). > > My questions to you and the group are: > 1. Did the system perform to your satisfaction? > 2. Were you convinced enough to purchase it? > 3. Was it worth the asking price? > > Mike Murphy > Compliance Engineer > Alesis Studio Electronics > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
