WRXB215

So, general stuff first. Think of tones as a filter, that only lets signals through that carry a matching tone. These are ctcss (also called PL by Motorola, or QT by kenwood) and DCS (aka DPL or DQT). Repeaters will usually have it enabled on the input (what you transmit to).
Getting a hair more specific..Midland radios commonly need the repeater channels to be enabled in the menu; with that out of the way you'll see 1-22 (skipping 8-14, most likely ) and then find 15r-22r, which are set with the proper offset for repeater use. As far as tones, you want to be on the appropriate channel for the frequency of the repeater, (page 26 of the instructions has what channel is what frequency), then set the transmit tone; use the table on page 27 to see what tone exuals what code, and page 19 has the instructions on how to set the tones.
 
Looks like DPL 047 would be code 7 under dcs.
https://cdn.accentuate.io/81031332017/1623709961570/MXT115-Owners-Manual-11-16-2020.pdf

Welcome!
Rule #1: Have fun and don't get too hung up on the small stuff.

Haha, LOL!
Alexander the Great, Julius Caesar and Napoleon are watching a parade on Red Square in Moscow in 70-s.
Alexander: If I only had tanks like these I'd conquer all of Europe and also Asia!
Julius: If I only had missiles like these I'd rule the whole planet!
Napoleon: If I only had a propaganda machine like that one, nobody ever would know that I lost at Waterloo!

Just my (conspiracy theorists) opinion, it's the same answer for radio, firearms, and everything else the government touches... it's not about safety or the people; it's about control. 

I have never owned a Boafeng radio but recently purchased the UV9G for my neighbor. You can input frequencies in the Frequency mode and then save them to a memory channel. Then you have to switch back to channel mode and go to the channel where you saved the new frequency. You should then be able listen if the frequency is outside of GMRS or transmit if you have set up a repeater (GMRS). I don't have it in front of me but I am pretty sure that is what we did. I read the manual paragraph for switching from memory mode to Frequency mode and thought I must have read it wrong. Surly you don't have to turn the radio off, hold the menu button while turning the radio to switch...
Well, yes you do, and don't call me Shirley.

Need an inexpensive cup holder mount for your small GMRS mobile?  Try a 3" plumbers test plug.  I got mine at Menards.

I bought the UV-5R PLUS not long ago. It was originally a ham radio, I unlocked it, programmed it for GMRS, replaced the ‘stubby’ antenna with the Authentic Genuine Nagoya NA-771G 15.3-Inch Whip GMRS (462MHz) Antenna SMA-Female for BTECH and BaoFeng Radios and love it! I’ve also gotten the UV-9G HT and it works equally as well. 

@txrodehog thanks for showing a side-by-side comparison. I got my UV-5R and the letters on the number keys are really hard to read. It looks like the ones on the UV-9G are much easier to read. I've been thinking that my next radio might be a 9G and that photo puts me that much closer in the direction of the 9G.
P.S. I will click like on your post as soon as the system will let me. Too many reactions in the current 24hr period. 🙁

Welcome!
Rule #1: Have fun and don't get too hung up on the small stuff.

Welcome!
Rule #1: Have fun and don't get too hung up on the small stuff.

You have come to the right place if you have specific questions. There is a lot of knowledge in these hallowed halls. However, as with every corner of the interwebs, you will get good answers, correct answers, and opinions on things you didn't ask. The key is to be able to differentiate between them all.

Welcome! 
 
As far as pointers go, I have a couple that may help.
1.) GMRS is a "bring your own contacts" type of environment. If you call out and don't hear much (or nothing) don't let it discouraged you. 
2.) GMRS is in the UHF radio segment and is an RF line of sight service. So, when it comes to range, height is might. 
3.) In radio, all the magic is in the antenna. Don't get to hung up on power output.  That said, more power isn’t a bad thing. 
 
As far as setups/radios go, what is it you want to accomplish? Where and what you're doing, combined with your desire for simplicity or Bells and Whistles will determine what you need.

Welcome!
Rule #1: Have fun and don't get too hung up on the small stuff.

@back4more70 you are on a roll! Keep it up! 👍

Sure do.  Two cans and some string.  Privacy tones guaranteed!

I make mine at home.  Delish and cheap!

Midland is the Starbucks of the radio world 🤣

I’m very happy with the Ghost antenna mounted in roof at rear.

I would be looking at drilling the rock and then using epoxy anchors to fasten plates to the rock face and then bolting the tower to that.
We aren't talking about 'JB Weld' here either.  THere are high performance epoxy products on the market for doing this sort of thing and they work well.
But closely following the directions for the use of the chemical anchors is very important.  But remember that light poles next to the highway may well be using this method for connecting to the concrete wall they are sitting on.
 

That’s what I did. 👍

I would inspect it VERY THOROUGHLY AND CAREFULLY first. Depending on materials a cheap galvanized steel tower may have rusted through sections that can fail in a wind gust. Aluminum would be better.
Other things to look for are cracks in the main vertical supports.
 
Look at the welds where the zig-zag stiffing members attach to the main side supports. 
Another is at the top where the mast mounts to the tower.
Cheap towers are nice. But not when they fail, falling on the utility wires, house, garage or your ride. Maybe even you.

You referred to it as an antenna, but the rest of your question seems to indicate it might be a tower. I’ll answer it as if it is an antenna. My answer would be different for a tower. 
A picture of the antenna might help, but the things that come to mind first are as follows:
First I would put an antenna analyzer on it to see if it’s resonant anywhere close to the GMRS range of frequencies. Channels 2-13 were VHF (30-300 MHz), not UHF (300-3000 MHz). The UHF channels may have been covered by antenna also, but most TV antennas were targeted at VHF.
Second, TV antennas were designed to be 75 ohm. Most two way radio antennas are 50 ohm.  That’s not a bad problem, but may require some ingenuity.
Third, the structure of this antenna might be usable as a tower to raise a GMRS antenna.  That might be a useful thing!
Good luck!
 

Since this happens to be a common topic because people do illegally use digital voice on GMRS, here are some things that might help if anyone wants to really get into decoding digital voice - 

Nooelec SDR dongle $34
SDR console (free software)
DSD plus ($25? for the software)

Hook this into you computer, slap an antenna on your SDR (preferably an outdoor antenna) and start sweeping through the frequencies. When you come upon a digital signal, DSD plus will automatically start decoding what it is and will tell you exactly what they are running as far as time slots or if it is encrypted. The only thing it seems to have an issue with is Yaesu Fusion (something that seems to get used in areas where it isn't supposed to be used). After that, you should get a good idea who it is, especially if its a Ham. 9 times out of 10, Hams will do something dumb like this and not change their Ham Radio digital ID on the radio. DSD plus will pick it up.

Sounds about normal range for that location and antenna. If on the roof in the center you will probably get aa better signal but I'd just throw a 1/2 wave on your mount and be done with it. 

They are completely different antennas that serve different purposes, and both require a good ground-plan.
 
The Tram is a no-gain antenna, with a great pattern for hilly and mountainous areas, while the Midland is a high gain antenna, designed for use in areas that are relatively flat.
 
Regardless of what antenna you use, you have to be sure the element is clear of obstruction so it can work the best.