Yup, MARS mode allows the radio to transmit on frequencies higher than 450MHz, which is all of FRS/GMRS including repeaters and more.Hey @Indy, do you HAMS need the MARS mod to do line of site comms with us GMRS'ers, no repeater channels?
Yup, MARS mode allows the radio to transmit on frequencies higher than 450MHz, which is all of FRS/GMRS including repeaters and more.Hey @Indy, do you HAMS need the MARS mod to do line of site comms with us GMRS'ers, no repeater channels?
Thank you.UHF. If you are programing via frequencies, channel 4:00 is frequency 462.637.
UHF. If you are programing via frequencies, channel 4:00 is frequency 462.637.
Does that mean someone who doesnt have access to channels could use that channels exact frequency and communicate with us? In other words if im on channel 4 and you are on freq 462.637 can we talk? Or is that not how it worksUHF. If you are programing via frequencies, channel 4:00 is frequency 462.637.
Channels 8-14 are FRS only channels and are limited to 0.5 watts. 1-7 and 15-22 are shared FRS/GMRS channels. 1-7 is limited to 5 watts, but 15-22 can run up to 50 watts, with a license. 15-22 are also repeater channels if your repeater function is on.View attachment 225442
@Indy am I reading this correctly? From what I see we would be limited to .5-5 W on channgels 1-14 but then allowed to broadcast up to 50 after.
Midland and Cobra dumbed it down for us by assigning channel numbers for the frequencies, so with the chart @Alex01 posted, you can go to say channel 4 on your radio (which is frequency 462.637) and communicate with anyone on that frequency.Does that mean someone who doesnt have access to channels could use that channels exact frequency and communicate with us? In other words if im on channel 4 and you are on freq 462.637 can we talk? Or is that not how it works
Oh thats actually really cool. ThanksMidland and Cobra dumbed it down for us by assigning channel numbers for the frequencies, so with the chart @Alex01 posted, you can go to say channel 4 on your radio (which is frequency 462.637) and communicate with anyone on that frequency.
I need to type in channels manually. Since I can only turn my radio as low as 5 looks like I should stay off the mid-range channels. Aren't we handicapping ourselves though not transmitting on channels 15+? Your radio goes to 15w and mine 50.Midland and Cobra dumbed it down for us by assigning channel numbers for the frequencies, so with the chart @Alex01 posted, you can go to say channel 4 on your radio (wich is frequency 462.637) and communicate with anyone on that frequency.
How close are you to Mt. Tam, or somewhere that's high ground?Oh thats actually really cool. Thanks
Remind me again why the mxt275 skips channels 8-14?Channels 8-14 are FRS only channels and are limited to 0.5 watts. 1-7 and 15-22 are shared FRS/GMRS channels. 1-7 is limited to 5 watts, but 15-22 can run up to 50 watts, with a license. 15-22 are also repeater channels if your repeater function is on.
Mt tamalpies? Im about 22 miles awayHow close are you to Mt. Tam, or somewhere that's high ground?
8-14 are FRS only and the mxt275 is a GMRS radio.Remind me again why the mxt275 skips channels 8-14?
That is the down side to GMRS. You can't legally, under FCC rules, transmit above 5w on 1-7, but how many channels do you need? 15-22 can transmit up to 50w, with 122 privacy tones available, you won't run out of channels any time soon. Where it gets more complicated is when you want to use repeaters. A repeater has its own rx frequency and either a ctcss tone or a dcs tone. Some repeater require a split tone, one to tx and one to rx.I need to type in channels manually. Since I can only turn my radio as low as 5 looks like I should stay off the mid-range channels. Aren't we handicapping ourselves though not transmitting on channels 15+? Your radio goes to 15w and mine 50.
@Alex is correct. GMRS radios can't broadcast on those channels. Those are reserved for FRS radios only, and are limited to 0.5watts, so unless you are in a close group they are useless to most. The radios will do the work for you, so say you have a FRS radio that is also GMRS capable, if you use 8-14 the radio will only tx out at 0.5w. Most hand helds max out at 5w, and have fixed antennas, so their range is limited.Remind me again why the mxt275 skips channels 8-14?
So for exaple those cobra handhelds we had can use both, but dont have much range due to the fixed antenna and low wattage?@Alex is correct. GMRS radios can't broadcast on those channels. Those are reserved for FRS radios only, and are limited to 0.5watts, so unless you are in a close group they are useless to most. The radios will do the work for you, so say you have a FRS radio that is also GMRS capable, if you use 8-14 the radio will only tx out at 0.5w. Most hand helds max out at 5w, and have fixed antennas, so their range is limited.
Yup!So for exaple those cobra handhelds we had can use both, but dont have much range due to the fixed antenna and low wattage?
Once you get your license and get your feet wet with your new radio, we can see if the Walker repeater is powerful enough for us to communicate. I can find some higher ground at my end. Maybe we can try it on the Cow Mt run while you are traveling up SR101.Mt tamalpies? Im about 22 miles away