Everything You Want to Know about MURS Radio
- Ham Talk
- Posted by Jackson Chen
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What is MURS radio?
MURS stands for Multi User Radio Service. It uses
a license-free group of 5 channels in the 151–154 MHz spectrum range, which were
previously in the industrial/business radio service and were known as the "color
dot" frequencies in Part 90 of the FCC rules. Different from similar service
GMRS, MURS is a low-power, short-range, license-exempt personal radio service.
Frequencies
CHANNEL | FREQUENCY | BANDWIDTH | POWER | MODE | DESCRIPTION |
MURS 1 CALL | 151.820 MHz | 11.25kHz | 2W | FMN | Common Use |
MURS 2 SAFETY | 151.880 MHz | 11.25kHz | 2W | FMN | Common Use |
MURS 3 EM | 151.940 MHz | 11.25kHz | 2W | FMN | Common Use |
MURS 4 BLUE • | 154.570 MHz | 20kHz | 2W | FM | Common Use/Blue Dot |
MURS 5 GREEN • | 154.600 MHz | 20kHz | 2W | FM | Common Use/Blue Dot |
Channels 1–3 must be used with “narrowband” FM – (2.5 kHz deviation; 11.25
kHz bandwidth). Channels 4 and 5 may use either “wideband” FM – (5 kHz
deviation; 20 kHz bandwidth) or “narrowband” FM. Source:
FCC
MURS channels 4-5 are shared with some business band radios who are
grandfathered in on these frequencies. Commercial radio manufacturers use a
“color dot system” to identify different radio channels, hence the “Blue Dot”
and “Green Dot” channels. CTCSS and DCS “privacy tones or codes” (which don’t
actually provide privacy) are allowed on MURS.
What are the differences between MURS and GMRS radios?
1. MURS radios are totally license-free to operate, while GMRS radios require
an FCC license.
2. MURS radios are less crowded.
3. MURS radios are with fixed 2 Watts output. GMRS radios are capable of up to
50 Watts power output, which means a longer range communication possibility.
4. MURS radios aren't able to hit repeaters for extending range, while some GMRS
radios do.
5. MURS radios don't work with FRS radios, while GMRS radios do.
6. MURS radios are with fewer channels.
What are the differences between MURS and FRS radios?
1. MURS radios are less crowded.
2. MURS radios are allowed to use removable antennas, while FRS radios aren't.
3. MURS radios transmit on the VHF band, which provides better coverage in rural
and outdoor areas. FRS works better in urban environments.
4. MURS radios don't work with GMRS radios, while FRS radios do.
5. MURS radios are with fewer channels. Handheld FRS units may have up to 22
channels.
When you decide to get your MURS radios. We recommend the
Radioddity MU-5
to you, which has lots of advanced features at a great price.
1. Sync Display & Dual Watch
2. UHF &VHF band, NOAA Scanner & Monitor
3. USB-C Charging
4. 250 Channels
5. VOX (hands free talking)
6. 9 Levels Squelch
7. Flashlight
8. SOS Alarm
3 comments
Ken
I take it that you can use channel 4 and 5. Those are shared frequencies. In other words be polite and don’t take the channel over, let others use it as well. Channel 1 is there to put out a call for someone and when communications has been made, both parties would move to channel 4 or 5.
Shawn
How can I find people or a group that also uses murs radio
Shawn
I just got my murs radio and trying to understand the channels and which one that I could communicate with everyone on. I understand that channel one is for call channel 2 is safety channel 3 is for emergencies and four and five I guess it’s for business use so I’m trying to do like a radio check to see how well it is and when I press on the key I antenna comes on on the screen but no bars like how strong the signal is