Hi, Thanks for your info. Though a bit complicated, it is still doable.
By the way, how to measure the cable fault location without the 11807 software? Thanks and Regards, Dickson Fu VR2WHF --- In Repeater-Builder@yahoogroups.com, "ve7fet" <yahoogro...@...> wrote: > > First you'll need a return loss bridge. No replacing that. > > The 11807 software can make things a little prettier, but you can still do > return loss quite easily. Distance to fault is going to be a bit more > challenge, but it can be done too. > > Return loss is the easiest to set up. You'll need to set up the tracking > generator/spectrum analyzer for the range you want to measure. Use the Duplex > Output and connect it to the Source port on the RLB. Use the Antenna Input > and connect it to the Reflected port on the RLB. > > You optionally may want to put a 6dB pad in between the Duplex Out and RLB > Source port. > > With the DUT port open on the RLB, you should have a trace on the spectrum > analyzer over the range you are sweeping. > > Now, you can turn up the output power of the Duplex Port until the trace gets > close to the reference level at the top, or go into the menus on the spectrum > analyzer and do a Save A and then a A-B to null out the sweep. > > Now, when you put a good load on the DUT port, you should get a return loss > down ~40dB or so. > > Hook up the DUT you want to sweep and go. > > Yes, this is quick and dirty, but it gets the job done when you are not > looking for fractions of a dB... > > > Lee > > --- In Repeater-Builder@yahoogroups.com, "Dickson" <dicksonfuhk@> wrote: > > > > Hi all, > > > > Without the RF Tools provided by 11807E opt 100 on HP 8924C, how to measure > > return loss and cable fault? > > > > The 11807E opt 100 provides the IBASIC program that can show the return > > loss profile over the range of frequency and indicates the max/min return > > loss and the corresponding frequency. > > > > Thanks and Regards, > > Dickson Fu > > VR2WHF > > >
