WRTA578

That will work bt being LMR400 and foil wrapped still I wouldn't use it... I would go with a Heliax Cable "All HELIAX coaxial cables are jacketed for direct burial or for corrosive environmental conditions. Standard jacketing material is weather-resistant polyethylene suitable for use in extreme climates."

Thank You for your input.... Tuning a duplexer was something i steered away from for my whole life but thx to Cheap NANOVNA's and You Tube i was able to tackle it... I have 7 repeaters i bought at Gov Auction TKR-851's and all have duplexers I have tuned 2 for 462.6 and 2 for 462.7 so if a failure its a fast cable swap and in goes a whole new repeater.... still waiting on linking hardware so i can link my 2 running repeaters to make my group happy.... now if i could understand how to have 2 repeaters with duplexers on 1 antenna then i could offer to separate systems to my users

I am using a SAA-2N NANOVNA with the Nano VNA app for PC the notches vary from 85ish to 103ish i have tried to get them tighter but i believe my resolution just isnt good enough was just trying to save $200 for tuning from the shop I do like that my S21 was able to get to -0.96 so 1DB loss i assume for transmit and receive which is way better than my Chinese flat pack that is -2.3DB just wondering if you think it will be an improvement over my current installed Chinese Duplexer

First time tuning one on my own so asking the Experts in here is this OK? I know I am not using a 15K piece of equipment to tune it but is this OK as is or should i take it to a radio shop and see if we can deepen the notches more? its an RFS flatpack