At what point does one require a distribution amp? My TBolt currently provides a reference clock for 2 instruments, and I know of no issues. Since the unit came with the 1:2 Mini-Circuits splitter, I expected this to be the case. If I switched to a ZFSC-4-1<http://www.minicircuits.com/pdfs/ZFSC-4-1+.pdf>1:4 splitter say, to add a reference to a 3rd instrument, at what point does this become an issue if the insertion loss is only -6dB on any port? HP provides both the input impedance and the capacitive load for a 5334 counter, which is nice, but this does not seem to be a standard or norm per se in the T&M industry. OTOH, I don't want to over think this though :-) Russ

On 04/18/2013 09:55 AM, Russ Ramirez wrote: > At what point does one require a distribution amp? My TBolt currently > provides a reference clock for 2 instruments, and I know of no issues. > Since the unit came with the 1:2 Mini-Circuits splitter, I expected this to > be the case. If I switched to a > ZFSC-4-1<http://www.minicircuits.com/pdfs/ZFSC-4-1+.pdf>1:4 splitter > say, to add a reference to a 3rd instrument, at what point > does this become an issue if the insertion loss is only -6dB on any port? > HP provides both the input impedance and the capacitive load for a 5334 > counter, which is nice, but this does not seem to be a standard or norm per > se in the T&M industry. > > OTOH, I don't want to over think this though :-) > > Russ > _______________________________________________ > 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. > I have a FlexRadio 1500, Racal 1992 counter, HP 3586, Advantest U3641, and Gigatronics 6061A daisy-chained off my Thunderbolt. Don't throw out those BNC T connectors. The Gigatronics terminates the 10 MHz so a splitter or something may be required if I add another instrument that terminated the 10 MHz input. You need to use lab grade cables if you don't wish to interfere with WWV on 10 MHz., -- Chuck Forsberg WA7KGX caf@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430