skipp025 wrote: >Depends really.... > >9913 is a good cable to use if you run modest lengths, the cable >doesn't have to move a lot and you don't run really high power. > >Here's the dope... > >The coax is most often a very cost effective choice. The loss for modest >length runs is not bad. > >You should pay serious attention to the coax material and mechanical >construction issues for your specific application. The center >conductor is often mounted in foam or a hybrid air foam type layout, >which has a potential to become problematic. > >It is possible the center conductor can migrate out of alignment with >sharp radius bends and heated center dilectric problems. Because of >these two issues I'm not much of a fan about using any foam center >coax. There's also a crush problem I'm not going to address in this >post... > >But I have friends who run 9913 with great results. > >My coax choice before 9913 would be RG-214 mil spec. > >Stay away from LMR dissimilar metal type coax cables in/for >duplex (repeater) operation... > >cheers, >skipp > > Both 9913 and 9913F use dissimilar metal shield materials. They both use DuoFoil aluminum foil / polyester tape under tinned copper.
You may get lucky, but most folks end up with problems. Unless you feel very lucky, 9913 and the LMR series of coaxes should be avoided in duplex applications. Ed Yoho WA6RQD
