It's all the other things like local topography and where you can/can't actually put an antenna that determine a repeaters viability. (b) This is a repeater input frequency and may be used only by licensed GMRS users.
#Gmrs repeater frequencies license
That stuff, the hardware part, is relatively simple. GMRS 467.7250 22 (b) 8 (b) GMRS yes (b) prohibited 50 watts (f) not applicable (d) (a) No GMRS license is required in order to transmit on this frequency if FRS limits and restrictions are followed. An effective and useful repeater setup takes a lot more than a pair radios and a duplexer. (1) The transmitter output power of mobile, repeater and base stations must. It goes through some of the Pros/Cons and real world limitations of a personal repeater. The maximum transmitting power depends on which channels are being used and.
Start by reading this thread over on MYGMRS. From there you can simply pick an unused input, the one with the weakest signal or one with the least traffic, and set your repeater with different CTCSS/DCS codes to reduce interference. You'll want to monitor the repeater input frequencies(not sure if the 805 will do that) to see which ones are being used/not being used in your area. "I want to know so I know what my options are for a future repeater." but it is a good way to keep the less savvy off your repeater. If all of the repeater inputs are in use in an area it is kinda douchey, since the repeater is now tying up two standard repeater pairs. Midland - MXT115, 15 Watt GMRS MicroMobile Two-Way Radio - 8 Repeater Channels, 142 Privacy Codes, NOAA Weather Scan + Alert & External Magnetic Mount. Where I am, with GMRS being relatively dead, no one would even notice.
I do think the FCC would look down on it though because GMRS is 'channelized'. I'm not sure on the legality of it, but I haven't seen anything in the regs that explicitly says you can't do that. For this reason, channels 1-14 are known as interstitial channels, and have reduced power output and bandwidth requirements as a result, they must fit and play nicely between the main GMRS. Unlike most current GMRS Part 95 only radios(Your 805's/Retevis RT76's/Midlands), it is entirely possible to program surplus radios with such a repeater split. Channels 8-14 are actually located between GMRS channels as well, in this case the repeater input frequencies which we’ll discuss in a later section. They could be using legal surplus business radios(Kenwood/Motorola/Maxon/Icom/Ritron) that are type accepted for both Part90 & Part95. "So is.somebody bending the rules to use their own set of frequencies that can only be programmed in a open type ham radio like uv5rs"
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