I’d use LDF4.5-50a, (5/8” heliax), loss at 3650MHz is 3.5dB/100’. If its too stiff to bring right into the antenna and AP, then use short LMR-400 jumpers.
http://www.commscope.com/catalog/andrew/product_details.aspx?id=1330 On Dec 1, 2015, at 3:38 PM, Jay Weekley <par...@cyberbroadband.net> wrote: > Yes, 3.65ghz. Purewave/Mercury Networks just responded and you and George > are right. They said that we would see an 8-10 dBm difference between the > uplink and downlink RSSI. > > Mathew Howard wrote: >> This is at 3.65ghz? 5.6db sounds about right to me for 60'. It is a big >> performance hit, but if they do have 1/2 watt per port, you might be able to >> raise the tx power enough to still be close to the max EIRP... of course >> you'll still be losing 6db on the receive side. >> >> On Tue, Dec 1, 2015 at 3:41 PM, Jay Weekley <par...@cyberbroadband.net >> <mailto:par...@cyberbroadband.net>> wrote: >> >> Yes, from the base station to the sectors. >> >> Josh Luthman wrote: >> >> Is it LMR400 between the sectors and the radio gear? 5.6db >> sounds like a lot to me. >> >> I'd definitely ask Purewave. >> >> >> Josh Luthman >> Office: 937-552-2340 <tel:937-552-2340> >> Direct: 937-552-2343 <tel:937-552-2343> >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> On Tue, Dec 1, 2015 at 4:10 PM, Jay Weekley >> <par...@cyberbroadband.net <mailto:par...@cyberbroadband.net> >> <mailto:par...@cyberbroadband.net >> <mailto:par...@cyberbroadband.net>>> wrote: >> >> We are going to experiment with some Purewave equipment >> that we >> have had for a while and one of our possible locations is on a >> water tank which means some of the LMR-400 to the sectors >> may be >> quite long. The loss calculator provided by Purewave shows >> that >> the loss on 60 feet of coax is 5.6 dB with Cable Run >> Efficiency of >> 31.6 %. Is this acceptable? I haven't worked with coax >> much but >> that seems like that's a big performance hit considering >> the loss >> on 6 feet is .7 dB and a cable run efficiency of 89.1 %. >> What is >> the performance hit the actual signal strength at the on the >> actual wireless link? >> >> >> >> >
