SteveShannon

Unless specifically called out a handheld is regulated the same as a portable or a mobile. Thus, while not practical, you could have a 50 watt handheld on some of the channels.

Yes, part A applies to all of the other subparts. Part A says that radios must be certified specifically in accordance with the requirements of the subparts but that there may be exceptions to that requirement. Part A goes on to say that the exceptions must be listed in the subparts and gives two linked examples. But if you click on the link to the example of the exception listed for GMRS, that exception no longer exists. Thus, there is no longer an exception that allows transmitters certified for other services, such as 90, to be used for part 95E.

There’s a very good reason why references must made and that’s because of the risk of having conflicting information in different places. Incorporating by reference allows a regulator to state a requirement once. I do agree that requirements should be stated as simply as possible. Unfortunately, that’s still not as simple as many people would like.

Well said, and I agree; this discussion should be taken to a separate thread so the OP can get what he needs.

I don’t agree. Although the numbers of two examples of exceptions are listed, one from subpart C (RCRS) and from part E (GMRS), the actual exception belonging in the GMRS subpart no longer exists and thus cannot apply. 95.335(a) clearly says that an exception must be listed in the applicable subpart.

Yes, they’re allowed. We share portions of the 70 cm amateur allocation with other users, including TPMS.

Thanks.

I haven’t looked into this but hopefully they have a software program that can control it from a pc.

Correct, except GMRS is subpart E. Also, a GMRS radio which transmits data are required to have a non-removable antenna and may not transmit the data through a repeater.

I think it’s really saying that a radio may be made that’s certified for multiple services as long as it’s properly certified for each of those services and not capable of transmitting on non-certified services such as ham. So a radio could be certified for parts 90 and 95e and used for both by a properly licensed person.

You’re misunderstanding the regulations. All of the FRS frequencies are also GMRS frequencies and may be used by GMRS radios as long as the regulations regarding power, bandwidth, and station type are obeyed. There’s nothing wrong with following the rules.

No, programming tones is not a modification. In fact for a certified GMRS radio, none of the ordinary changes made from the panel constitutes a modification. If you “unlock” the radio to allow it to transmit on a frequency outside of the 30 GMRS frequencies designated by regulations that would be considered a modification.

The only reason for certification is to allow you to transmit. There are many certified GMRS radios that are capable of receiving hundreds of non-GMRS frequencies. If you wish to be compliant with the rules when transmitting, yes, you must use a GMRS certified radio. I have never looked into the FCC ID of the UV5RM, so I don’t know if it has GMRS certification or not. Baofeng does manufacture 95E certified radios.

More specific to GMRS is this paragraph: 95.1761 GMRS transmitter certification. (a) Each GMRS transmitter (a transmitter that operates or is intended to operate in the GMRS) must be certified in accordance with this subpart and part 2 of this chapter. (b) A grant of equipment certification for the GMRS will not be issued for any GMRS transmitter type that fails to comply with the applicable rules in this subpart. (c) No GMRS transmitter will be certified for use in the GMRS if it is equipped with a frequency capability not listed in § 95.1763, unless such transmitter is also certified for use in another radio service for which the frequency is authorized and for which certification is also required. No GMRS transmitter will be certified for use in the GMRS if it is equipped with the capabilities to operate in services that do not require equipment certification, such as the Amateur Radio Service. All frequency determining circuitry (including crystals) and programming controls in each GMRS transmitter must be internal to the transmitter and must not be accessible from the exterior of the transmitter operating panel or from the exterior of the transmitter enclosure. (d) Effective December 27, 2017, the Commission will no longer issue a grant of equipment authorization for hand-held portable unit transmitter types under both this subpart (GMRS) and subpart B of this part (FRS). (e) Effective December 27, 2017, the Commission will no longer issue a grant of equipment authorization under this subpart (GMRS) for hand-held portable units if such units meet the requirements to be certified under subpart B of this part (FRS).

Radio specs are submitted by the manufacturer to the FCC and the FCC issues a certification. Look and see if the radio has been certified. A certification identifier should appear on a label attached to the radio. However, you’ll soon learn that as long as you make any attempt whatsoever at following the rules the FCC will never know or care.

Just get the same size screws from the bins at Ace, Home Depot, or Lowe’s. Because the old screws already tapped the threads you no longer need self-tappers.

I’ve reported your post to the owner. He’s the only person who can help.

Not continuously.

With a 30 second period it sounds like it’s part of some signaling system. For a while various devices were sold that used FRS/GMRS frequencies for non personal radio purposes. Baby monitors, home weather stations, etc. Perhaps it’s something like that. Nothing prevents transmitting multiple CTCSS tones simultaneously with strings of data that include DTCSS codes, especially if those codes are being used to carry other data rather than access codes. Because they’re very short and audible CTCSS tones and DTCSS codes are extremely simple to inadvertently include in a transmission if a transmitter isn’t explicitly filtering them out. Our radios do that; they intentionally filter them out before adding specific ones in while transmitting. Someone’s home control system easily might not. Given the fact that you are able to anticipate when it’s going to be heard you should be able to track it.

Very good point.

This is exactly correct. It doesn’t matter which of the GMRS/FRS channels 1-22 you’re on; if you’re using a GMRS radio you’re required to be operating with a license. If you’re using an FRS radio you do not need a license.

Code editors do not unwind an executable to structured source code like you can inspect in an open source project.

Horsecrap

Why not? At least with open source I can see what’s in the code.

Treadmills make great clothes hangers… A good way to get started is to pick up a Radioddity db20g and swap it to 2 meters and 70 cm. It’s inexpensive and versatile. Most people like them. It’s 20 watts but for those two bands that’s usually enough.