In a message dated 22/08/2012 19:21:03 GMT Daylight Time, gandal...@aol.com writes:
With regards to the Oncore VP carrier phase measurement option, I'm not too sure that the 8821B does actually make use of that. My 8821B, manufactured in 1999, does contain the 8 channel Oncore VP B8121Z116 as I mentioned previously, and the 8821 data sheet from 2004 does refer to all 8821 models as using an 8 channel receiver, but the 8821A manual from 1997 refers to that as using a 6 channel receiver. Given that the only obvious difference between the 8821A and 8821B seems to be the oscillator module I'm assuming the change to the 8 channel receiver would have occured simultaneously for both versions, and am wondering if that might not just have been based on availability rather than to take advantage of any technical enhancements. ----------------- Whoops, need to get better reading glasses! It was a 2002 datasheet stated the 8821 used an 8 channel receiver and in an October 2003 datasheet this had increased to 12 channels, I still suspect that these were changes inflicted by availability. Regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.