See page five for an explanation of the process... http://206.209.106.106/datasheets/Miscellaneous/54100a-4.pdf
Again, doable, but messy. Lee --- In Repeater-Builder@yahoogroups.com, "Dickson" <dicksonf...@...> wrote: > > 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" <yahoogroups@> 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 > > > > > >
