Here's a quick question :
I'm in the process of installing a GMRS repeater in my home due to the rather high location of the building. (on top of a mountain). To start the "project", I ran approximately 125' of LMR-400 (actual Times Microwave brand, not an off-shore knockoff) and terminated the " antenna end" (currently coiled up in the attic) with an "N" connector soldered on.... I wanted to run larger "Heliax" hard-line (min. 7/8", but decided to cut costs a bit -- hopefully not a long-term mistake)
I was forced to install the repeater in the basement due to cooling concerns and also wanted it install it in a rack fairly close to my generator, etc... , so I simply ran the feedline in a spare "attic to basement" Carlon "Innerduct" run that I had installed when I did my electrical rough-in (prior to drywall installationk, I ran alot of emt & pvc & innerduct for "future use" <G> along with a few hundred thousand feet of wire between cat6, RG6QS, fiber & coax for cctv cameras in addtion to ton of NM for lighting & branch ckts.etc. ) . Alongside the LMR, I ran a piece of #4 THWN stranded copper for grounding/bonding and left a coil at each end.
Here's my dilemna: I want to add an additional UHF repeater and a VHF (both bus. band) repeater at the house. I have plenty of spare conduit and/or innerduct running from attic to basement, but don't know whether or not to use LMR400 again, spend the extra $$ for Andrews Heliax -- or -- I happen to have 1000' of Belden RG-11 PVC jacketed 75 ohm coax and tooling to install compression fittings on it ("F" connectors though... so I'd have to adapt over to "N" or other connector to attach to the radio gear).
Any suggestions? The VHF repeater will not be going in for a year or so. Until then, I'll probably be installing a simplex base with a more economical antenna as a temporary solution. (Eventually, I'll probably be installing Quantar repeaters w/ Super Station Master antennas for all 3 systems.)
And.. Assuming I rule out hardline completely: How would 100-150' of RG-11 compare to LMR-400 in terms of impedence matching/swr/attenuation - loss / etc??
Thanks in advance !