And to think this guy is one of the few that offers Part 95 certified GMRS repeaters,wonder if he thinks they are for business use to........
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MURS is for Business Users Only!
- Thread starter Dantian
- Start date
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And to think this guy is one of the few that offers Part 95 certified GMRS repeaters,wonder if he thinks they are for business use to........
Should have checked Part 95 first...
MURS is limited to specific accepted radios, one of 5 frequencies narrow, with two of them also available wide (technically a total of 7), no more than two watts, and can be used for either business or personal communications.
From the FCC website, http://www.fcc.gov/encyclopedia/multi-use-radio-service-murs-0: FCC Encyclopedia
Multi-Use Radio Service (MURS)
The Multi-Use Radio Service (MURS) is in the 151 – 154 MHz spectrum range. The most common use of MURS spectrum is short-distance, two-way communications using small, portable hand-held devices that function similar to walkie-talkies.
Similar services include General Mobile Radio Service (GMRS) and Family Radio Service (FRS).
Background
The Multi-Use Radio Service (MURS) dates back to 2002 when the FCC changed the service rules for five industrial/business frequencies known as the “color dot” frequencies from Part 90 to Part 95 of the FCC rules.
Licensing
The Multi-Use Radio Service (MURS) is licensed by rule. This means an individual license is not required to operate a MURS device. You can operate a MURS device regardless of your age and for personal or business use so long as you are not a representative of a foreign government.
The FCC service rules for the Multi-Use Radio Service (MURS) are located in 47 C.F.R. Part 95.
Channels
There are five MURS channels and the channels are either 11.25 kHz or 20.00 kHz each.
151.820 MHz (11.25 kHz)
151.880 MHz (11.25 kHz)
151.940 MHz (11.25 kHz)
154.570 MHz (20.00 kHz)
154.600 MHz (20.00 kHz)
-------------------------
General MURS Provisions:
§ 95.1301 Eligibility.
§ 95.1303 Authorized locations.
§ 95.1305 Station identification.
§ 95.1307 Permissible communications.
§ 95.1309 Channel use policy.
§ 95.1311 Repeater operations and signal boosters prohibited.
§ 95.1313 Interconnection prohibited.
§ 95.1315 Antenna height restriction.
The highest point of any MURS antenna must no be more than 18.3 meters (60 feet) above the ground or 6.10 meters (20 feet) above the highest point of the structure on which it is mounted.
§ 95.1317 Grandfathered MURS Stations.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.147.18&idno=47
(h) No MURS unit, under any condition of modulation, shall exceed 2 Watts transmitter power output.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.147.14&idno=47
§ 95.632(a) The MURS transmitter channel frequencies are 151.820 MHz, 151.880 MHz, 151.940 MHz, 154.570 MHz, 154.600 MHz.
(b) The authorized bandwidth is 11.25 kHz on frequencies 151.820 MHz, 151.880 MHz and 151.940 MHz. The authorized bandwidth is 20.0 kHz on frequencies 154.570 and 154.600 MHz.
(c) MURS transmitters must maintain a frequency stability of 5.0 ppm, or 2.0 ppm if designed to operate with a 6.25 kHz bandwidth.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.148.25&idno=47
(d) No transmitter will be certificated for use in MURS if it is equipped with a frequency capability not listed in § 95.632.
MURS is limited to specific accepted radios, one of 5 frequencies narrow, with two of them also available wide (technically a total of 7), no more than two watts, and can be used for either business or personal communications.
From the FCC website, http://www.fcc.gov/encyclopedia/multi-use-radio-service-murs-0: FCC Encyclopedia
Multi-Use Radio Service (MURS)
The Multi-Use Radio Service (MURS) is in the 151 – 154 MHz spectrum range. The most common use of MURS spectrum is short-distance, two-way communications using small, portable hand-held devices that function similar to walkie-talkies.
Similar services include General Mobile Radio Service (GMRS) and Family Radio Service (FRS).
Background
The Multi-Use Radio Service (MURS) dates back to 2002 when the FCC changed the service rules for five industrial/business frequencies known as the “color dot” frequencies from Part 90 to Part 95 of the FCC rules.
Licensing
The Multi-Use Radio Service (MURS) is licensed by rule. This means an individual license is not required to operate a MURS device. You can operate a MURS device regardless of your age and for personal or business use so long as you are not a representative of a foreign government.
The FCC service rules for the Multi-Use Radio Service (MURS) are located in 47 C.F.R. Part 95.
Channels
There are five MURS channels and the channels are either 11.25 kHz or 20.00 kHz each.
151.820 MHz (11.25 kHz)
151.880 MHz (11.25 kHz)
151.940 MHz (11.25 kHz)
154.570 MHz (20.00 kHz)
154.600 MHz (20.00 kHz)
-------------------------
General MURS Provisions:
§ 95.1301 Eligibility.
§ 95.1303 Authorized locations.
§ 95.1305 Station identification.
§ 95.1307 Permissible communications.
§ 95.1309 Channel use policy.
§ 95.1311 Repeater operations and signal boosters prohibited.
§ 95.1313 Interconnection prohibited.
§ 95.1315 Antenna height restriction.
The highest point of any MURS antenna must no be more than 18.3 meters (60 feet) above the ground or 6.10 meters (20 feet) above the highest point of the structure on which it is mounted.
§ 95.1317 Grandfathered MURS Stations.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.147.18&idno=47
(h) No MURS unit, under any condition of modulation, shall exceed 2 Watts transmitter power output.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.147.14&idno=47
§ 95.632(a) The MURS transmitter channel frequencies are 151.820 MHz, 151.880 MHz, 151.940 MHz, 154.570 MHz, 154.600 MHz.
(b) The authorized bandwidth is 11.25 kHz on frequencies 151.820 MHz, 151.880 MHz and 151.940 MHz. The authorized bandwidth is 20.0 kHz on frequencies 154.570 and 154.600 MHz.
(c) MURS transmitters must maintain a frequency stability of 5.0 ppm, or 2.0 ppm if designed to operate with a 6.25 kHz bandwidth.
http://www.ecfr.gov/cgi-bin/text-idx?c=ecfr&SID=f5a07bcae6ed8304417bbe48c60ac722&rgn=div8&view=text&node=47:5.0.1.1.5.5.148.25&idno=47
(d) No transmitter will be certificated for use in MURS if it is equipped with a frequency capability not listed in § 95.632.
D
DaveNF2G
Guest
Don't tell us, tell the guy who runs Ritron!
LOL.
LOL.
...or his marketing, engineering and legal departments.
rapidcharger
Member
Just another radio salesman talking out his yin-yang.
Nothing to see here.
Nothing to see here.
D
DaveNF2G
Guest
Comments on the UC video are "moderated," which seems to take several days. I'm waiting to see when/if my comment shows up. I didn't even post anonymously like the other two that have appeared so far.
The Wal-Mart in my area use the motorola radio showed in the video.
What is funny is the cp110 manual PDF on page 9 says "to operate on these frequencies you are required to have a license from the FCC" lol either error or the PDF was created prior to murs being public use. What is interesting to me is I thought for a device to be murs compliant certified the antenna cannot be removable? Yet the cp110 is removable. I know it applies for FRS radios. Thought it was same for murs even though no one follows it lol.
KB7MIB
Member
Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)
The antenna may be removed on MURS radios. The rules state that for the radio to be acceptable for MURS use, it cannot be capable of any channels other than the 5 authorized, or be capable of a power output of more than 2 watts. Many people ignore that.
The antenna may be removed on MURS radios. The rules state that for the radio to be acceptable for MURS use, it cannot be capable of any channels other than the 5 authorized, or be capable of a power output of more than 2 watts. Many people ignore that.
nd5y
Member
I think you got that backwards. The MURS version of that radio is new. The manual is probably for all versions and they didn't update it.
MURS radios are allowed to have external antennas. FRS radios are not.
W2NJS
Member
IMHO that's the best and funniest comment so far.
rescuecomm
Member
MURS channels = Motorola Urban Retail Store Channels. Keep Off.
Bob
Bob
Eureka! That 'splains why the stores get so testy when you use 'their' channels. Mother told them so, and Mother cannot err!
Yes they do. Our hell-mart managers get mad if somebody transmits on 'their frequency'. Before the radio cops start I don't cause interference, I avoid their channel if I use my own radio. Our store uses murs only radio rdm 2070d which I think is made just for hell-mart. I bought a rdm 2080d (murs only radio) and the software would not let me program the rdm 2070d the store uses. Interestingly my 2080 has a scramble feature which is only voice inversion, but still.
bill4long
Member
How would they even know, unless you were using the same CTCSS as them?
The rules say users are suppose to "cooperate" to minimize interference. Use a different CTCSS and/or a different channel, and you would most likely have no problems.
Fyi, most walmarts use carrier squelch, hence the reason they are prone to hear other users so it's their problem. I don't think the corporate beans in Bentonville,Ark. discovered ctcss yet.
73,
n9zas
bill4long
Member
Fyi, most walmarts use carrier squelch, hence the reason they are prone to hear other users so it's their problem. I don't think the corporate beans in Bentonville,Ark. discovered ctcss yet.
The WalMart around here uses 77 hz CTCSS and the Sam's club (owned by WalMart) down the street uses 88.5 hz CTCSS. And yes, if the don't use some sort of squelch other than carrier, then it's their problem if they hear unwanted signals. And it's incumbent on them to "cooperate" and fix it.
Darth_vader
Member
- Joined
- Apr 5, 2013
- Messages
- 327
The one by me (http://wikimapia.org/#lang=en&lat=45.623905&lon=-122.562082&z=18&m=bs) uses 94.8 Hz on "Green Dot" (MURS 5). This was discovered using the R-CTS scan function on my UV-5R.
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