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That’s not enough information. Are you talking about the speaker output? How are you generating the tone?

Got my GMRS license last week - WRWF929 Got my first radio in from amazon Downloaded Chirp and uploaded a list of local repeaters. I am a legend in my own bath tub!!! LOL! Still in listen and learn mode. But having a ton of fun!

What tone? Connected how? I haven't had a Raspberry Pi since the Raspberry Pi 3 came out years ago, but back then I did need to add an external USB sound card to mine. Things may have changed since then. What exactly are you trying to do with it that is causing it to emit a tone at all? Like SShannon said, you've given us just enough information so we have no idea what the heck you're doing.

Correct. Most Itinerant frequencys do not need coordination but you should do your own. Getting a UHF repeater pair the same as the warehouse across the street is not the best. And yes it has been done.

I've seen one license state "farming and s**t spreading" listed as their justification for a frequency

This is correct, applications for new Part 90 licenses on itins only can be directly submitted to ULS without coordination

If they are motivated enough to break into the safe, and then the vault in the safe and steal the info or the keyloader, I will know about it of course and have to rekey anyway. The reason for all that is simple. I have my keys and the keys for others there as well. And like I said, it's a little overkill, but the safes are in place for other reasons. And besides that, I don't keep ALL my firearm's in the safe at all times. Ohio is now a Castle Doctrine state and there are other security measures in place to access the gun vault that would alert me within seconds of a breach of the perimeter, structure and room the vault is located. Figuring that the outer vault is a 2 hour T n T (torch and Tool) rated enclosure I don't worry a lot about it. I had a buddy that got called about his front door being open on his house by the Sheriff years ago that had some of the same hardware I have. He told them the firearms in that safe due to the caliber exceeded the ratings for standard body armor (300 WinMag and above). They established a perimeter and brought in the SWAT team to clear the house. Turns out it was nothing. The door didn't latch that morning and the wind just blew it open. This was determined after the fact by reviewing the video of the door. Of course newer systems have motion recognition and email alerting with pictures inform the system owners of these types of things in almost real time. Some of those systems are now open source and freely downloadable and require inexpensive IP camera's to setup. They are also smart enough to segregate area's within the overall view of the camera (create an active perimeter) so a camera pointed in the front yard doesn't trip when a car on the road doesn't trip an alert but a car in the driveway or other motion in the active perimeter will trip an alarm and send an email to me. And that's stuff you can just go download and install on a spare computer and build a network of 'cheap' camera's with. If you get into the high end stuff, and the pricey camera's they will do LPR (license plate recognition) facial recognition and can be integrated with access control, physical alarm systems, phone, radio and cloud based monitoring and alerting so the video and photographic evidence of an event is elsewhere and not delete-able. I don't go THAT far, but I do have dual DVR's (digital video recorders) with one being off site at a remote location that see's everything the other one does and sends the same emails. Since Motorola decided to get into the access control and video surveillance business, I got the nod to be the guy at my office to learn all this crap. And of course learning it means doing it somewhere. Sort of a hands on training. When you are sitting in meetings and your phone beeps when Amazon drops a package on your door step with a photo from your video system it happened, they figured I would be the guy to learn the product. I just haven't convinced them to let me borrow the facial rec camera's yet.

Question, if the application is for a nation wide Itinerant frequency does it still have to go through a coordinator? I thought I read it doesn't.

For less than the cost of 1 Wouxun radio, you could strap 2 CDM750 (or 1250) mobiles back-to-back and get 3 times better results.

To get a commercial license or LMR license you need a reason. A home repair shop is a valid excuse and will allow you to apply for a frequency. In the LMR world a license is mostly for 1 frequency. Not a huge block like GMRS or Ham. In public safety world you can apply for multiple as well as in business LMR. Location will dictate what frequencies are available in your area and what sections of frequencies you can apply for. All Part 90 frequencies require coordination so even if you fill out the 601 your self it needs to go to a frequency coordinator for approval prior to the FCC. There are various frequency coordinators for public safety, business, etc. Each one will require a fee on top of your FCC fee. When I did alot of these for work we would quote $500 for 1 frequency. Many came in around that but the last channel I did was $250 per frequency (460/465 mhz) so it was $500 just in coordination plus FCC fees as well as our fees for our work. Public Safety still pays coordination fees, but is exempt mostly from the FCC fee. The other major issue is location. Some locations have no frequencies available and frequency reuse happens. Also above Line A requires all FCC licenses to go to Canada. Our last SAR frequency was in Canada for almost 2 years until we got approval.

In all fairness I think he wanted to cover all the bases and tried to avoid most of the objections. He does have a sort of dry sense of humor, entertaining to watch. There are some points he makes in the videos that I think are wrong or disagree with, but nobody is perfect.

Who ever came up with that had a major brain F--t. In all fairness it was likely done due to the band getting crowded with all sorts of modes and specific uses. With only 4MHz of bandwidth that can get allocated quick. On UHF the usual 430-450 gives one 20 MHz of bandwidth to use. South of Line-A it's 420-450. For example the vast majority of digital voice operations you'll find on UHF. Most likely due to more room to accommodate it.

The FT60R I had for five years was one of the best HT's I ever owned. When COVID hit in March 2020, we got sent home to work, we're still working at home and looks like we will be for the rest of my working life. So I sold it. I regret selling every radio I have ever sold...and that's been a bunch. Leaning hard toward the KG-S88G for GMRS. I don't really need a 2m/440 HT around here. No one to talk to and not much going on other than drive time, and I don't have any drive time now.

It looks like you are trying to use the Carlson Rule. Carson’s Rule is an estimation of the maximum bandwidth. The bandwidth will be proportionate with the audio signal amplitude, but with a maximum bandwidth estimated by Carson’s Rule, the bandwidth would be 2(5 kHz + 3 kHz) = 16KHz, not 15KHz. Unfortunately, on the VHF amateur bands, channel spacing is 15KHz across most of the country. This leads to a lot of bleed-over when there are conversations happening on adjacent channels. There are about 10 states that use 20KHz, which is better. UHF is 12.5KHz for NFM and 25KHz for FM on the amateur bands and GMRS, which is a bit more comfortable with regard to prevent/avoiding interference.

That’s the “Hello, World” of two way radios! Good job!

A friend asked me to fix his MFJ 269D Pro. I fixed it yesterday. Someone had broken the N female socket on the top. That was not designed to make it easy to fix!

The antenna will be fine... fair price. I would buy an authentic MXT400 v2 (or newer) over the 115 because if you are going to be talking to repeaters, programming the repeater channels to operate wide band will ensure your audio levels are proper and there will be less noise in your signal. Wouxun KG905g would be my recommendation. The S88g is great, too, but after taxes and shipping it may be over $150.

To the best of my knowledge Yaesu and Elecraft don't make a part 95 approved radio (I'm not telling). Here is a little more on wide vs narrow though it's pretty much as @wayoverthere and @KAF6045 have explained. https://www.ailunce.comhttp//www.ailunce.com/blog/what-is-the-difference-between-narrowband-and-wideband-on-gmrs-radios

Bandwidth is the amount of space a single /signal/ is allowed to take up. The MXT-115 uses 12.5kHz NFM -- the same bandwidth as FRS. GMRS is authorized 20kHz (though most rigs these days tend to bluff it at 25kHz -- especially as the modulation mode tends to be 16k, vs 11k for narrowband). It makes for a difference in the audio quality going between the two bandwidths (regular FM will be clipped by an NFM receiver, while an NFM signal won't be using the full dynamics of an FM receiver).

I hedge my info to bring out "some people" so all the normal people can laugh at them... I'm glad to see that it's still working.

If you want to operate the radio on Part 90 frequencies, yes. A commercial license can't be obtained to operate on the Part 95E GMRS frequencies. You must have a GMRS specific license. Also if the radio has encryption that also can not be used on GMRS. He was very carefully avoiding the issue of the radio not having Part 95E certification, it does have Part 90. In that case technically you need a commercial license to legally operate the radio on commercial Part 90 frequencies. He made that statement because he knew there would be a flood of comments pointing out the lack of Part 95E certification and the requirement to have a commercial license to legally operate the radio. Apparently he does have some Part 90 frequencies he is licensed to use, thus having the radio, which "just so happens" to have GMRS frequencies programmed into it. With some of the YouTube content creators you must be very careful about what they say. They hedge their comments and some of the info they hand out is misleading at best and just plain wrong at the worst. Unfortunately there are a few that seem to have a large following and have given bad info at times that soon spreads like a virus.

I hold an "H" license, my wife doesn't, I do not know everything. She thinks I am a nerd, but I am a good cook and provider so she keeps me. Got my GMRS license this week. I got it because on "H" bands I am a CW operator. I don't even own a VHF or UHF radio at this time. We are going to buy, eventually, 2 decent GMRS HTs and I would like to eventually establish a GMRS base station in our location. I thought I might want to build a repeater, but that urge has passed. I am in the foot print of INDY 600 so we don't really need an open repeater here. Good, saves me money for other toys. I have been monitoring GMRS freqs for about a year, I feel like I know some of you already, and for the most part everyone seems to get along and are very friendly. So I have requested access to a couple repeater systems, and await the reply patiently. I look forward to being on the system, and being able to communicate with my wife when she is not within cell phone reach. I am perfectly happy to be mentored on the proper protocols of GMRS use. I have a child living in Mooresville and one in Decatur Township (Indianapolis) and I plan on getting them to jump on the GMRS bandwagon if this works out well for my wife and I. ?

Why not help your friend get his Tech license? Then you could use the existing repeaters to stay in touch.

Hmmmm..... Don't know what what I'm doing wrong..... I'm hitting 46.4 to 50.8 watts on all high channels.... on a ground plane.... in the attic..... with LMR400 coax.... able to talk good and clear on all high channels and repeaters..... Checked two of the three GMRS-50-V2 units I have, and both get the same watts, etc! I guess I'll have to check the third mobile unit when it gets back, just to be sure..... But, so far, I think they're great. I also have two GMRS-V2 units, and have checked them both for wattage out...... Hmmmm... both doing about 4.3 to 4.9 watts out...... Maybe...... I don't know for sure....just maybe..... all five units that I'm running are great radios that do what they say they'll do........ I'm happy with BTech GMRS-50V2 50 watt units (I have 3 units in use) and the handhelds GMRS-V2 (I have 2 units in sporatic... sometimes use). Anyway, TMO.

LOL... Too funny... OK why not. This is all repeater related. This is a watered down version 1.) Think before you xmit, if you can't think of anything to say avoid the PTT button. 2.) Q codes (thanks to group poster for that reminder) 3.) Weather, Arthritis, Space fillers (see #1). This situation is caused by user boredom, and can be cured by primary productive activities. 4.) Keep it short... Think "utility". (probably get hollered at for putting it in quotes) OK teaser done. Gotta go, I will check back in here next week unless banned already. All is OK no matter what and I mean that! Thanks! P.S. On the thought of language use, A friend of mine once told a couple coworkers they "sure looked homely". They were not happy. He is from Ireland, and it was in fact very much a complement. Damn hubris! It seems the world is out to get everyone....lol

Don't trouble yourself. Seriously. Don't.

I love how folks get on forums and try to change services that have been in place for years to make it do what they want to do vs finding a service to do what they want to do.

CCR radio with poor shielding. A quality LMR radio would not do that. There is a reason many commercial repeaters are not cheap. Filtering and shielding in repeaters is very important. You could have grabbed a GR1225 or VXR7000 repeater cheaper that you spent on the 2 mobiles.

Short answer: No, you can not. You are only allowed to used frequencies that are allocated for Amateur Radio (if you have Amateur Lincese). 158.452 is not one of them. Long answer: For starters, see the frequency allocations: https://en.wikipedia.org/wiki/Amateur_radio_frequency_allocations and http://www.arrl.org/frequency-allocations Or in graphic form: http://www.arrl.org/graphical-frequency-allocations

Almost forgot: A lot of sad-hams like to slum on GMRS - so turn on your roger beep, then kerchunk the repeater a few times - They'll come at you like The Walking Dead...

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.

If you are using this in repeater mode you need a tuned duplexer for the repeater pair you are using. DO NOT TRUST CHINA'S DUPLEXERS as they seem to fail time and time again, not to mention they are never tuned properly from the factory. I would say this is likely where your issue lies.

The tone is to high when I am connected to my PI. It is fine when I am not connected. How do you make changes to tone.