Lscott

Yup, it's a multi-multi-band radio. 🤣 You can transmit on a half dozen VHF and UHF frequencies all at the same time. 🤐
I had a buddy at work who got one of those super cheap BF-888's UHF radios to experiment with it. There is a hack to program in some VHF frequencies. He tried it. It worked all right. Then I tuned my radio for the third harmonic. Oh-oh... I could hear him even better on the third harmonic spur! Well that ended that experiment. Never used that radio again.

What if they don't drive? 😳

You can try removing the antenna on the radio. That's a cheap kind of signal attenuater. Do that when the signal gets real strong with the antenna connected. When you get close enough to the source the radio should respond even without the antenna connected.
One other trick is flip the radio over so the antenna is horizontal. The source antenna is likely vertical and the cross polarization results in may cases another 20db attenuation. Then rotate in a circle. When the signal is minimum either the end of the antenna is point nearly towards the source or directly away from it. Try that in several locations and that can help pin down the area.

Awesome - gonna do this now. 

You can try removing the antenna on the radio. That's a cheap kind of signal attenuater. Do that when the signal gets real strong with the antenna connected. When you get close enough to the source the radio should respond even without the antenna connected.
One other trick is flip the radio over so the antenna is horizontal. The source antenna is likely vertical and the cross polarization results in may cases another 20db attenuation. Then rotate in a circle. When the signal is minimum either the end of the antenna is point nearly towards the source or directly away from it. Try that in several locations and that can help pin down the area.

You can try removing the antenna on the radio. That's a cheap kind of signal attenuater. Do that when the signal gets real strong with the antenna connected. When you get close enough to the source the radio should respond even without the antenna connected.
One other trick is flip the radio over so the antenna is horizontal. The source antenna is likely vertical and the cross polarization results in may cases another 20db attenuation. Then rotate in a circle. When the signal is minimum either the end of the antenna is point nearly towards the source or directly away from it. Try that in several locations and that can help pin down the area.

You can try removing the antenna on the radio. That's a cheap kind of signal attenuater. Do that when the signal gets real strong with the antenna connected. When you get close enough to the source the radio should respond even without the antenna connected.
One other trick is flip the radio over so the antenna is horizontal. The source antenna is likely vertical and the cross polarization results in may cases another 20db attenuation. Then rotate in a circle. When the signal is minimum either the end of the antenna is point nearly towards the source or directly away from it. Try that in several locations and that can help pin down the area.

Flex-N-Gate is licensed for 462.5125MHz per FCC database. Emission is narrow band FM.
Plant location in database is BATTLE CREEK, MI CALHOUN County.
https://wireless2.fcc.gov/UlsApp/UlsSearch/licenseFreqSum.jsp?licKey=3494581
I wonder if somebody was miss programming radios for DMR and they ended up at the R.O. location.
 
 

I don't know. I think there are some reviews on YouTube on the topic. I would also do some research on-line to see if there is anything. As popular as they seem to be somebody likely has done some recent testing. 
One other place to check is the FCC site. If the radio is legally sold in the US it should, required, to have an FCC ID. Using that you can look up the grant and test reports. The grant by the way will likely just show just a certification for Part 15, not 97. The FCC's main concern is the radio is blocked from receiving cell phone frequencies.
You can do an informal, crude, test using another radio. TX on 146.0MHz on the test radio. Then using a second radio some short distance away tuned for 438.0MHz, that's the third harmonic, and see if you can pick up a signal.  If you can you likely have a problem. If not the radio "might" be acceptably clean, at least on VHF. It's no guarantee it's OK on UHF however.
Dual band radios typically have two transmit "chains", power amp stages and filters, for each band. Both need to be checked. 
You can try the same kind of test on UHF but you'll likely will need a scanner that can tune up around 1.2GHz to 1.5GHz to catch the third harmonic.
Your final option is try at a local Ham Radio club. Somebody there might have a spectrum analyzer, I have a model in mind on my wish list to get sooner or later, or access to one. You can see if a test of your radio can be arranged. I'm sure you won't be the first person in a club who wants to know if their cheap radio meets FCC emission limits.
 

That's the usual offset, however the rules don't require it. Note the FCC rules simply state what frequencies can be used for communications through a repeater, sections A and C, but don't mention a required offset.
https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E/section-95.1763
Some have used a non-standard offset, still using the official frequencies, as a means to keep many users off a repeater since many radios "assume" a fixed 5MHz offset with no option for changing it. That leaves just those people with commercial grade radios that allow programming in separate TX and RX frequencies.

MDC "whacker tone"

Sent from my SM-A136U using Tapatalk

I don't know. I think there are some reviews on YouTube on the topic. I would also do some research on-line to see if there is anything. As popular as they seem to be somebody likely has done some recent testing. 
One other place to check is the FCC site. If the radio is legally sold in the US it should, required, to have an FCC ID. Using that you can look up the grant and test reports. The grant by the way will likely just show just a certification for Part 15, not 97. The FCC's main concern is the radio is blocked from receiving cell phone frequencies.
You can do an informal, crude, test using another radio. TX on 146.0MHz on the test radio. Then using a second radio some short distance away tuned for 438.0MHz, that's the third harmonic, and see if you can pick up a signal.  If you can you likely have a problem. If not the radio "might" be acceptably clean, at least on VHF. It's no guarantee it's OK on UHF however.
Dual band radios typically have two transmit "chains", power amp stages and filters, for each band. Both need to be checked. 
You can try the same kind of test on UHF but you'll likely will need a scanner that can tune up around 1.2GHz to 1.5GHz to catch the third harmonic.
Your final option is try at a local Ham Radio club. Somebody there might have a spectrum analyzer, I have a model in mind on my wish list to get sooner or later, or access to one. You can see if a test of your radio can be arranged. I'm sure you won't be the first person in a club who wants to know if their cheap radio meets FCC emission limits.
 

That's the usual offset, however the rules don't require it. Note the FCC rules simply state what frequencies can be used for communications through a repeater, sections A and C, but don't mention a required offset.
https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E/section-95.1763
Some have used a non-standard offset, still using the official frequencies, as a means to keep many users off a repeater since many radios "assume" a fixed 5MHz offset with no option for changing it. That leaves just those people with commercial grade radios that allow programming in separate TX and RX frequencies.

It's programmed to be +5.000 MHz for the repeater channels on commercially sold GMRS radios, but the regulations don't actually require that.  They simply say that radios transmit to repeaters on the 467 MHz Main Channels and receive on the 462 MHz Main Channels.  Some repeater owners have chosen to deviate from the 5.000 MHz offset.  It's not technically non-compliant, but it effectively makes it very difficult for commonly available GMRS radios to be used.
I don't know why they do that, but I suspect a bias against inexpensive GMRS radios. So, they end up with inexpensive ham radios instead. 🤷‍♂️

That's the usual offset, however the rules don't require it. Note the FCC rules simply state what frequencies can be used for communications through a repeater, sections A and C, but don't mention a required offset.
https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E/section-95.1763
Some have used a non-standard offset, still using the official frequencies, as a means to keep many users off a repeater since many radios "assume" a fixed 5MHz offset with no option for changing it. That leaves just those people with commercial grade radios that allow programming in separate TX and RX frequencies.

You need more than just a solar panel. The battery pack they use is a Lithium Ion type and has very specific charge requirements. That is satisfied by the charger base. You need a solar panel and some type of regulator to keep the input to the charger base within specifications. DO NOT try to charge the battery pack directly off the solar panel!
Most solar panels for low to medium power applications output up to 20 to 22 volts DC, likely way to high for the charger base. You can use a DC to DC converter with a wide input voltage range and a fixed output voltage to feed the charger base.
The Baofeng charger base has an input of 10 VDC, 12 VDC would likely work OK. Then you need  DC to DC converter that would take a wide input voltage range from the solar panel and output a fixed 12 VDC. One example, don't take this as a recommendation, is at the following link.
https://www.digikey.com/en/products/detail/mean-well-usa-inc/SPBW06F-12/7707012
Datasheet specifications.
https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2289/SPBW06%2CDPBW06_Ds.pdf
The input voltage range is 9 to 36 VDC so this should cover a 5 watt solar panel. You can find some 5 watt solar panels on line. I've attached some photos of a few I have. You'll likely pay around $20 to $30 for one. You'll also need some cable and connectors to wire in the DC to DC converter and connect to the charger base.
 

Solarverter.pdf Solarland SLP005-12.pdf 5 Watt No Name Light Aluminum Frame Solar Panel.pdf

I don't know. I think there are some reviews on YouTube on the topic. I would also do some research on-line to see if there is anything. As popular as they seem to be somebody likely has done some recent testing. 
One other place to check is the FCC site. If the radio is legally sold in the US it should, required, to have an FCC ID. Using that you can look up the grant and test reports. The grant by the way will likely just show just a certification for Part 15, not 97. The FCC's main concern is the radio is blocked from receiving cell phone frequencies.
You can do an informal, crude, test using another radio. TX on 146.0MHz on the test radio. Then using a second radio some short distance away tuned for 438.0MHz, that's the third harmonic, and see if you can pick up a signal.  If you can you likely have a problem. If not the radio "might" be acceptably clean, at least on VHF. It's no guarantee it's OK on UHF however.
Dual band radios typically have two transmit "chains", power amp stages and filters, for each band. Both need to be checked. 
You can try the same kind of test on UHF but you'll likely will need a scanner that can tune up around 1.2GHz to 1.5GHz to catch the third harmonic.
Your final option is try at a local Ham Radio club. Somebody there might have a spectrum analyzer, I have a model in mind on my wish list to get sooner or later, or access to one. You can see if a test of your radio can be arranged. I'm sure you won't be the first person in a club who wants to know if their cheap radio meets FCC emission limits.
 

Yup, it's a multi-multi-band radio. 🤣 You can transmit on a half dozen VHF and UHF frequencies all at the same time. 🤐
I had a buddy at work who got one of those super cheap BF-888's UHF radios to experiment with it. There is a hack to program in some VHF frequencies. He tried it. It worked all right. Then I tuned my radio for the third harmonic. Oh-oh... I could hear him even better on the third harmonic spur! Well that ended that experiment. Never used that radio again.

I don't know. I think there are some reviews on YouTube on the topic. I would also do some research on-line to see if there is anything. As popular as they seem to be somebody likely has done some recent testing. 
One other place to check is the FCC site. If the radio is legally sold in the US it should, required, to have an FCC ID. Using that you can look up the grant and test reports. The grant by the way will likely just show just a certification for Part 15, not 97. The FCC's main concern is the radio is blocked from receiving cell phone frequencies.
You can do an informal, crude, test using another radio. TX on 146.0MHz on the test radio. Then using a second radio some short distance away tuned for 438.0MHz, that's the third harmonic, and see if you can pick up a signal.  If you can you likely have a problem. If not the radio "might" be acceptably clean, at least on VHF. It's no guarantee it's OK on UHF however.
Dual band radios typically have two transmit "chains", power amp stages and filters, for each band. Both need to be checked. 
You can try the same kind of test on UHF but you'll likely will need a scanner that can tune up around 1.2GHz to 1.5GHz to catch the third harmonic.
Your final option is try at a local Ham Radio club. Somebody there might have a spectrum analyzer, I have a model in mind on my wish list to get sooner or later, or access to one. You can see if a test of your radio can be arranged. I'm sure you won't be the first person in a club who wants to know if their cheap radio meets FCC emission limits.
 

You're entitled to your opinion, but public disregard for the FCC rules is discouraged on this forum.

@Lscott Interesting how the schematic for the UV-5R is a single page. The schematic for that old Kenwood I have is several pages like that. Thanks for sharing.

I don’t think you have turned on us, but you have gotten to the point where you have expressed a disregard for the regulations and it’s clear you don’t understand (or even want to understand) why they exist. 
There are four sets of frequencies in GMRS. The requirements for bandwidth and RF power (and how measured) vary considerably with some of the frequencies (interstitial) wedged tightly in between others from other sets.
You claim the right to transmit on these frequencies with whatever radio you want to use, but you don’t know what you don’t know. 
So, that’s kind of off-putting to people who are trying to help you learn. 

You're entitled to your opinion, but public disregard for the FCC rules is discouraged on this forum.

I was at the Ham swap a while back in Fort Wayne Indiana. Part of the free test bench, used for checking used radios people buy before leaving, had a Rigol spectrum analyzer setup. The link below is the model I believe they were using at the time, DSA-815.
https://www.rigolna.com/products/spectrum-analyzers/dsa800/
Some people were solicited specifically so they could test their radios as an informal survey. The results were socking for some people when they saw the results.
The original classic UV-5R was well known for poor filtering of harmonics on the output. I found the attached VHF spectrum tests for one on-line and a copy of the schematic, likely the first generation design, for the radio.
UV-5R VHF Harmonics Test.pdf SCHEMATIC Baofeng UV-5R.pdf

We all had high hopes for you. From what I could tell, you seemed genuinely interested in GMRS and radio in general. But now, after holding your hand for all this time, giving you advice that you asked for, answering all your questions, and generally welcoming you into the realm, you seem to have turned on us. Good luck with your journey.