Jim the 5 and 12.8GHz modules are the same part and the software/firmware set the upper freq limit. I assume at least the 12.8 GHz option must be unlocked/accessed most likely through the key pad. The 5GHz may be plug and play.
Thomas Knox > From: jsrobb...@earthlink.net > Date: Wed, 19 Mar 2014 18:00:09 -0400 > To: time-nuts@febo.com > Subject: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter > > I think I may need to clarify my prior posting. > > Both old and new Channel 3 boards work fine (and read correctly) in my older > 53132A counter. > > Both old and new Channel 3 boards fail to work properly in (and read 4x > actual) the newer 53132A counter. > > So I think the problem is in the newer main 53132A box. > > As far as my understanding of the division ratios, I understand my error now. > Thank you Dave (and some others). > > I have done some further testing and discovered one of HP/Agilent's little > tricks. The main counter board channel 3 ribbon cable socket pin numbering > does not conform to the channel 3 board ribbon cable socket numbering (they > are crisscrossed). (I can supply the shifted numbers if anyone is > interested.) > > However, my search for suspected unwanted zero ohm resistors left in the new > box (to set the counter up for a 5 or 12.5GHz channel 3) has resulted in no > joy and only a large headache and sore eyes:( > > Thanks everyone for trying to help here. It was supposed to be a "plug and > play" addition to my counter. So much for the plan. > > Jim Robbins > N1JR > _______________________________________________ > 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. _______________________________________________ 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.
