JohnE

DMR.

It can, been there done that 2x in 40 yrs. resonant cable.

in the mean time take 6" off the cable and put a new connector on it see what that yields. if it works I'll explain it later

I'm going to say duplexer also, maybe the cables are backwards. Have seen that a couple of times. A celwave flat pack is deigned to fit inside that machine and has the provided jumpers. I have 2 of them as spares.

Laird Technologies B4505CS, been using this for a couple of yrs no complaints from HAM to T-band. was a replacement for the AS Mosaic that was stolen.

I'm just going to leave this here http://comms.kenwood.com/special/nx_5000/mobile.html

you should hear all the crap I get in NYC, on both sides hi and low. not to mention the range of languages and the colorful language.

did this for a customer who didn't want all his men BSing all the time. only foemen or supervisors could talk to them radios 3,4,5 ...... were set up like 2 and supers had 1.

in what sense given the weather where you are I might look into putting the cable in some PVC pipe. As to the cable itself at, 60' 400 will be ok. the next real step up would be 1/2 inch hard line. just my thoughts https://hosting.photobucket.com/albums/h358/erscom/off%20grid%20site/IMG_0239_zps7a34owh0.jpg

mobile to base antenna conversion https://www.pctel.com/antenna-product/base-station-adapters/

@25' 400 cable will be fine. you could go to FSJ 2 or 4 though but they are a little more fragile in terms of oops factor

look into the tk880H and 8180H both are ~40W radios. programming is strait forward

it radio and program dependent. my radios are Kenwoods and big M's all of that can be done in the RSS. also what N4GIX said.

I would personally spend some time listening to the channel before deciding. I spent days listening in the site where my machine resides before putting it on the air. As to the antenna the 1486 would be the choice as it is a strait up UHF antenna. I'm not a fan of the Tram/Comet antennas but they seem to be popular w/HAM's, then again I live in the LMR/PS world. what is the plan for cable? These are what I'm using. Not cheap and will last 20+ yrs on a site barring physical damage. https://d3ciwvs59ifrt8.cloudfront.net/3d2faca2-b31b-426a-8e30-d282d46d987b/8b99adb0-0d32-46b0-9f42-8c4580c6e3d2.pdf

:lol: :lol:

KB2ZTX, agreed I have several commercial sites that I maintain, only one of which has full back up power and one that has B/U for certain radios on the site. Only one of my three machines has full battery B/U for when the power goes out.

that is what "monitor" is for. most radios have a button for monitoring (open channel) on them. I do run my mobile in monitor most of the time as there are 4 other co channel users on there.

Its called hang time. the difference between the receiver closing and the transmitter unkeying. typically 2-3 seconds is the norm, some are longer or shorter and/or have tones to let you know someone has let go of the key. agreed

I will second Radioguy

http://domtoren.com/990/Bi-_or_Uni-directional_Repeater_cable_for_CDM_type_radios.pdf

its a good basic hand held

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I would consider CB more closely related to HAM than GMRS. as was said before for "most" users its a tool. I guess it all depends on why and what brought you to GMRS.

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if it was 16.5 I would say don't use it.14.5 isn't out that much I just don't think it will provide enough current to run the TX side. those old RS unit were only rated at 1.5 or 3 amps IIRC