gortex2

Nice we looked at a nice LJ that was actually automatic, but with my time on the road didn't think I'd have time to get everything done before April so a 3/4 done jeep was what we got. Luckily one we found was a one owner 100% mall crawler (whinch doesnt even have power cables to it). We plan to remove all the mall stuff and put some real stuff on it. Just ordered new BFG MT last night for all the way around. Going to miss the old school MT...

Well I guess when I told wife we need to do multiple repairs on the JK she decided a new one was better...so picking up a 2018 Rubicon later this week. So instead of axles, lockers, its just radios and wrap...My kinda work for winter months !

I use a multicoupler on soime but the basic ones just use a T. If you have really good signal that works ok. The ones with marginal coverage go thru the splitters.

Looks like lots more jeeping next year on my horizon. Wife just signed up for 4 JJUSA events. So on top of other events we do we will be doing more of the JJUSA stuff. Guess I got alot of work to do on the rig this winter.

The bronco has the same issues us with jeeps have fought for years. Do some searching for jeep mounts and you will find ideas. While I run the 1/4 wave or smaller antennas for my use many on hear say the Midland MXTA26 to be a good comprimise for distance on a mount near the hood or spare tire. I dont have a use for distance as I either use my repeater or am talking to the jeep in front or behind me.

All the laird antenna's I use are wrapped to the base. Dont go around the antenna.

So first thing you need to do is get it on a antenna outside of your test room. Hook it up to an outside antenna. Your most likely desensing not only the radio but the repeater as well. Subscriber aka portable radio.

All my users on those repeaters use older Midland gear. Works very well for their useage. Even my APX stuff has both narrow and wideband to accomidate when needed. One of the repeaters has been like that for almost 15 years.

I just change as needed on my midlands. I find its a waste of time to preprogram stuff that may or may not even be there. KISS method for me.

How do you know its not transmitting ? What antenna system are you using ? What is your test procedure and what subscriber are you uising ?

In the LMR world we use 1/2" LDF for jumpers at the antenna regardless of size of feedline. Then from polyphaser to repeater/combiner/duplexer 1/2" superflex or 1/2 LDF depending on the PIM rating needed. My 7/8" feedline terminates with 7/8 din, then 1/2" LDF to the DB408 on one of my towers. Most antenna jumpers are 6' long but that all depends on the side arm needed on the tower. My DB408 is on top of tower so I use a 3' jumper.

I run 3 of my repeaters as narrowband repeaters. They are out there.

I have the exact duplexer on 2 of my repeater sites Yes each can is a PASS/REJECT. I am doing exactly what I said at one site with no decense or issues. RX antenna into duplexer. RX duplexer port to RX on Quantar. TX port on duplexer with dummy load. TX Antenna to TX port on Quantar. My seocnd site has 2 of the cavities on the RX side only (PASS 467, reject 462) with no issues. It a cavity. We use those same exact units in multicouplers all the time (in Public Safety). If you put the VNA into the antenna port on the duplexer you should see no change regardless of a transmitter or dummy load. If you do the duplexer isn't tuned correctly.

The issue is windows on mac. Do you have someone with a windows PC you can use to verify. I have no issues win W10 or 11 with programming on the MTX

Simpler solution is to move the new antenna to the duplexer and put a dummy load on your TX port. Then run your TX antenna directly to the repeater. You dont need the filter on the TX side and you also wont affect the RX foltering by just not using the TX side of the dulexer. Putting the dummy load on it will eliminate any interfearance. All of my GMRS repeaters are on multi couplers that just have bandpass filters and TX line direct to antenna.