|GMRS Repeater Output / Simplex (1)||462.550|
FRS Ch 1 (GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (2)||462.575|
FRS Ch 2(GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (3)||462.600|
FRS Ch 3(GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (4)||462.625|
FRS Ch 4(GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (5)||462.650|
FRS Ch 5 (GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (6)||462.675|
FRS Ch 6(GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (7)||462.700|
FRS Ch 7 (GMRS 5 w. allowed)
|GMRS Repeater Output / Simplex (8)||462.725|
|GMRS Repeater Input (1)||467.550|
FRS Ch 8 GMRS not allowed)
|GMRS Repeater Input (2)||467.575|
FRS Ch 9(GMRS not allowed)
|GMRS Repeater Input (3)||467.600|
FRS Ch 10 (GMRS not allowed)
|GMRS Repeater Input (4)||467.625|
FRS Ch 11 (GMRS not allowed)
|GMRS Repeater Input (5)||467.650|
FRS Ch 12 (GMRS not allowed)
|GMRS Repeater Input (6)||467.675|
FRS Ch 13 (GMRS not allowed)
|GMRS Repeater Input (7)|
FRS Ch 14 (GMRS not allowed)
|GMRS Repeater Input (8)||467.725|
I realize Most Hams do not like CBers but most of us started with CB radios and I feel like this is a good place for information on them and GPRS Radios.
This is from a thread on JK Forum:
With all the discussion around use of HAM radios off-road (along with the lack of any substantial proliferation) and the limits of CB radios we thought it would be worthwhile to explore what communication options we actually have. In order to do so we enlisted the help of a communications consultant who over the last 30 years has worked to design and implement the current 2 way system in use by the US Forest Service (who better to help with these questions than someone with experience providing life safety systems in the very terrain that we like to wheel in). After 2 months of bouncing ideas, testing equipment and evaluating needs and current infrastructure I thought it was time to bounce some ideas off you guys and see what the "real world" thinks. I appreciate your thoughts and feedback, 4 key points just to help stay on track:
1. I don’t mean for this to replace CB's in average rigs. CB radios are inexpensive easy to use and provide great jeep to jeep communications especially for groups of otherwise strangers who can all "go to channel 10" without problems.
2. I don’t mean to discount HAM radio operators, some of the individuals involved in this discussion are and have been amateur operators for many years. We considered and discussed HAM as a viable option however licensing details precluded it as barriers which would restrict use to greatly.
3. Most people associate GMRS with the little hand held walkie talkies at Wal-Mart. We do not, those are FRS radios and consumer marketing has blended them with GMRS because some share band with GMRS. We are not fans of those toy radios, while they do serve a purpose we don’t believe they are reliable enough for the trail.
4. While the majority of jeepers would be able to appreciate the value of GMRS as we will explain it we don’t feel the majority will adopt it. Cost will be the single largest hindrance but for the serious off-road enthusiast we think it is well worth the investment.
Ok hopefully those points will avoid a lot of unnecessary discussion, now the good stuff. GMRS is General Mobile Radio Service and is a band in the 460 MHz range of UHF reserved by the FCC for licensed civilian use. GMRS uses the same high quality FM radio equipment that Police, Fire and other life safety organizations depends on. GMRS operators can legally transmit with up to 40 watts of power (vs. 5 watts for CB and .5 watts for FRS walkie talkies), and most importantly for us GMRS can and currently do legally use retransmission stations or repeaters.
The licensing aspect of GMRS is one of the best things we have going for us. Like HAM radio the license requirement keeps the "average Joe" off that band keeping the frequencies clear of "Noise". Like HAM radio operators must obtain a license and call sign from the FCC in order to operate GMRS equipment. Unlike HAM NO TEST IS NECESSARY, pay the government $85.00 online and complete a online application and you will be licensed in 24-72 hours. Unlike HAM the license is good for your entire family so spouses and children can all operate the GMRS equipment under a single license with no additional cost. These two aspects we felt where significant reasons to choose GMRS over HAM as the best option.
GMRS equipment out of the box provides up to 4 times the transmission capabilities than CB radios. The clean band and increased quality of the equipment significantly increases the communications capabilities, generally speaking if you can gain altitude (hill top or ridge) you can reliably transmit out to the horizon providing a great emergency communication option. The ability to use and availability of existing private repeaters greatly increases communication options. We are currently reliably transmitting 60-70 miles from trails at elevation and mountain areas back into town using existing repeaters at no cost.
We have identified several repeaters in the Central California region covering some of our best trails. We have also obtained portable mobile repeaters capable of supporting off-road events and areas where necessary. A quick evaluation of the rest of California shows great coverage in both northern and southern California. Most of these existing repeaters and easily accessible assuming users are courteous and professional in their use. We would be willing to work with staging areas to contact and obtain permission for this infrastructure if there is licensed individuals in the staging area interested.
GMRS equipment new runs about $300.00 for good midrange stuff. These are permanently mounted mobile radios similar in form to a good CB radio. Portable radios are available or about $120.00 which by comparison to CB are still very good however we recommend permanently mounted and hard wired mobile radios for reliability. Used equipment is available on EBay almost cheaper than new CB radios but you need to be careful to programming requirements. Generally speaking these radios require some technically ability to program and are not plug and play. Usually you can work something out with the seller when buying something.
wiki cb radio
Citizens' Band radio (often shortened to CB radio) is, in many countries, a system of short-distance radio communications between individuals on a selection of 40 channels within the 27-MHz (11 m) band. The CB radio service is distinct from FRS, GMRS, MURS, or Amateur ("ham") Radio. In many countries, CB does not require a license and, unlike Amateur Radio, it may be used for business as well as personal communications. Like many other two-way radio services, Citizens' Band channels are shared by many users. Only one station may transmit at a time. Other stations must listen and wait for the shared channel to be available.
Over time, several countries have created similar radio services, with varying requirements for licensing and differing technical standards. While they may be known by other names, such as General Radio Service in Canada, they often use similar frequencies (26 to 28 MHz), and have similar uses, and similar difficulties with antennas and propagation. Licenses may be required, but eligibility is generally simple.
Some countries have personal radio services in the UHF band, such as the European PMR446 and the Australian UHF CB.
OriginsThe Citizens' Band radio service originated in the United States as one of several personal radio services regulated by the Federal Communications Commission (FCC). These services began in 1945 to permit citizens a radio band for personal communication (e.g., radio-controlled models, family communications, individual businesses). In 1948, the original "Class D" CB Radios were to be operated on the 460 MHz–470 MHz UHF band . There were two classes of CB: A and B. Class B radios had simpler technical requirements but were limited to a smaller range of frequencies. Al Gross, inventor of the walkie-talkie, started Citizen's Radio Corp. in the late 1940s to merchandise Class B handhelds for the general public.
Ultra-high frequency, or UHF, radios, at the time, were neither practical nor affordable for the average consumer. In 1958, the Class D CB service was moved to 27 MHz, and this band became what is popularly known as CB. There were only 23 channels at the time; the first 22 were taken from what used to be an Amateur 11-meter band, while channel 23 was shared with radio-controlled devices. Some hobbyists continue to use the designation "11 meters" to refer to the Citizens' Band and adjoining frequencies. Part 95 of the Code of Federal Regulations regulated the Class D CB service, on the 27 MHz band, as of the 1970s.
Most of the 460 MHz–470 MHz band was reassigned for business and public safety uses, but Class A CB is the ancestor of the present General Mobile Radio Service GMRS. Class B, in the same vein, is a more distant ancestor of the Family Radio Service. The Multi-Use Radio Service is another two-way radio service, in the VHF high band. An unsuccessful petition was made in 1973 to create a Class E CB service at 220 MHz, this was opposed by amateur radio organizations and others. There are several other classes of personal radio services for specialized purposes such as remote control devices.
In the 1960s, the service was popular with small trade businesses (e.g., electricians, plumbers, carpenters), as well as truck drivers and radio hobbyists. By the late 60s the advancement of solid-state electronics allowed the weight, size, and cost of the radios to decrease, giving the general public access to a communications medium that had previously been only available to specialists. Many CB clubs were formed, and a special CB slang language evolved, used alongside 10-codes similar to those used in the emergency services.
 Growing popularity in the 1970sFollowing the 1973 oil crisis, the U.S. government imposed a nationwide 55 mph speed limit, and fuel shortages and rationing were widespread. CB radio was often used, especially by truckers, to locate service stations with better supplies of fuel, to notify other drivers of speed traps, and to organize blockades and convoys in a 1974 strike protesting the new speed limit and other trucking regulations. The radios were crucial for independent truckers, many of whom were paid by the mile, which meant they were hurt even more than others by the 55 mph limits reduction of productivity. The prominent use of CB radios in 1970s-era films such as Smokey and the Bandit (1977), Convoy (1978), television shows like Movin' On (debuted 1974), The Dukes of Hazzard (debuted 1979), and popular novelty songs such as C.W. McCall's Convoy (1976) helped establish CB radio as a nationwide craze in the USA in the mid- to late-1970s.
Originally, CB required a license and fee (it was $20.00 in the early '70s; and $4.00 in the late '70s), and the use of a call sign, but when the CB craze was at its peak, many people ignored this requirement and used made-up nicknames or "handles". The many restrictions on the authorized use of CB radio led to widespread disregard of the regulations, most notably in antenna height, distance restriction for communications, licensing and the use of call signs, and allowable transmitter power. After the FCC started receiving over 1,000,000 license applications a month, the license requirement was dropped entirely.
Similar to the Internet chat rooms a quarter century later, the CB allowed people to get to know one another in a quasi-anonymous manner. As with the Internet, CB radio sometimes encouraged the worst characteristics of anononymity:
Most of what you hear on CB radio is either tedious (truck drivers warning one another about speed traps) or banal (schoolgirls exchanging notes on homework), but at its occasional—and illegal—worst it sinks a pipeline to the depths of the American unconscious. Your ears are assaulted by the sound of racism at its most rampant, and by masturbation fantasies that are the aural equivalent of rape. The sleep of reason, to quote Goya’s phrase, brings forth monsters, and the anonymity of CB encourages the monsters to emerge.
Originally, there were only 23 CB channels in the U.S.; the present 40-channel bandplan did not come along until 1977. Channel 9 was officially reserved for emergency use by the FCC in 1969. Channel 10 was often used for highway communications at first, then, it was Channel 10 east of the Mississippi River, and channel 19 west of the Mississippi; then later Channel 19 became the preferred highway channel in most areas, as it did not have adjacent-channel interference problems with channel 9. Many CB'ers called Channel 19 "the trucker's channel". While it does not have any official status, such as Channel 9, most highway travelers listen to Channel 19. It is still used by truck drivers, and therefore remains the best way to hear information regarding road construction, accidents, and police radar traps.
Initially the FCC intended CB to be the "poor man's business band radio". CB regulations were structured similar to those regulating the business band radio service. Until 1975, only channels 9–15 and 23 could be used for "interstation" calls to other licensees. Channels 1–8 and 16–22 were reserved for "intrastation" communications among units under the same license. After the interstation/intrastation rule was dropped, Channel 11 was reserved as a calling frequency for the sole purpose of establishing communications; however this was withdrawn in 1977. During this early time period, it was common for many CB radios to have these "interstation" channels 'colored' on their dial, whilst the other channels were 'clear' or 'normal'; with the exception of Channel 9 - it was usually colored Red.
It became very common for various towns to 'adopt' one of the "interstation" channels as their 'home' channel. This accomplised two things: first, this help prevent overcrowding on Ch 11, and second; this allowed a CB'er to go to that town's 'home channel' to try and contact another CB'er from that town, instead of a general 'call' on Ch 11.
Also, it was common for Single Sideband (SSB) users to use Channel 16 as 'their' channel. Due to the greater authorized output power of SSB radios (12 watts vs. 4 watts for AM radios) the SSB signal would overpower the weaker AM signal. Voluntary segregation of SSB operation to Channel 16 avoided problems and allowed SSB operators to find other SSB stations to chat with. With the FCC authorization of 40 channels, SSB operation shifted to Channels 36 through 40. Channel 36 became the unofficial SSB "calling channel" for stations seeking contacts, with long-winded conversations moving over to Channels 37 through 40. CB operators with AM-only radios were asked to not use Channels 36 through 40. In exchange, the higher powered SSB stations stayed off the remaining 35 channels so they could be used by AM stations.
In more recent years, CB has lost much of its original appeal due to development of mobile phones, the Internet, and Family Radio Service. The changing radio wave propagation for long-distance communications, due to the 11 year sunspot cycle, is always a factor for these frequencies. In addition, CB in some respects became a victim of its own intense popularity. Because of the millions of users jammed onto frequencies during the mid-to-late 1970s and early 1980s, channels often were intolerably noisy and communication became difficult. Many CBers started to use their radios less frequently or not at all after this period. Actual business users such as tow truck operators, plumbers, and electricians moved to the VHF business band frequencies. The business band requires an FCC license and usually results in the assignment of a single frequency, instead of 40 channels to choose from. However the advantages of fewer users sharing the same frequency, more authorized output power, clear FM modulation, and the consistent communications of VHF frequencies far outweigh the overcrowded CB channels.
The FCC’s Office of Engineer and Technology (OET) has evaluated the devices listed below and has concluded that these devices are not only amateur transceivers but can easily be altered for use as Citizens Band (CB) transceivers as well. As such, OET has further concluded that these devices cannot legally be imported or marketed within the United States for the reasons discussed below. Further, the FCC General Council has issued a decision in a specific case involving one manufacturer and has concluded that dual use CB and amateur radios of the kind at issue may not be approved under the Commission’s rules and are in violation of several rules including the RF power level limits of 47 CFR 95.639. (letter from Christopher J. Wright, FCC-OGC to John F. Atwood, US Customs Service, dated May 17, 1999).
Transceivers used in the Amateur Radio Service below 30 MHz do not require FCC authorization prior to being imported into or marketed within the United States, but transceivers for other services, including the CB Radio Service (CB), do require Commission approval. The transceivers listed herein and other similar models operate in the amateur "10-meter band" and are often referred to as "10-meter" radios or "export" radios. The amateur 10-meter band uses frequencies that are very close to the channels set aside for use in the CB service. Some of the transceivers that manufacturers call "10-meter" radios either operate on CB frequencies as manufactured and imported or are designed such that internal circuits can readily be activated by a user, a service technician or a dealer to operate on CB frequencies. According to Section 95.603(c) of the Commission’s rules, a CB transmitter is a transmitter that operates or is intended to operate at a station authorized for the CB service. 47C.F.R. § 95.603(c). The Commission’s equipment authorization experts in the FCC Laboratory have determined that the transceivers listed herein and other similar models at issue here are intended for use on the CB frequencies as well as those in the amateur service because they have built-in capability to operate on CB frequencies. This capability can be readily activated by moving or removing a jumper plug, cutting or splicing a wire, plugging in a connector, or other simple means. Thus, all the transceivers listed herein and similar models fall within the definition of a CB transmitter. See 47C.F.R. § 95.603(c). A CB transmitter must be certificated by the FCC prior to marketing or importation. 47 C.F.R. §§ 95.603(c); 2.803.
Moreover, the dual use CB and amateur radios of the kind at issue here may not be certified under the Commission’s rules. Section 95.655(a) states: "….([CB] Transmitters with frequency capability for the Amateur Radio Services … will not be certificated.)" See also Amendment of Part 95, Subpart E, Technical Regulations in the Personal Radio Services Rules, FCC 88-256, 1888 WL 488084 (August 17, 1988). This clarification was added to explicitly foreclose the possibility of certification of dual use CB and amateur radios, see id, and thereby deter use by CB operators of frequencies allocated for amateur radio use.
In addition, the Commission’s equipment authorization experts have determined that these devices violate or appear to violate a number of the rules governing CB devices. For example, they may use emission types not permitted, or emit RF power at a level in excess of the levels permitted in the CB radio service. See 47 C.F.R. § 95.639.
In view of the foregoing, the following "10-meter" transceivers are not acceptable for importation or marketing into/within the United States. Importation and marketing of these units is illegal pursuant to Section 302(b) of the Communications Act and Section 2.803 of the rules. Willful violations of the Rules and the Act may subject the violator to a monetary forfeiture of not more than $11,000 for each violation or each day of a continuing violation. The Commission continues to review this type of equipment, and additional makes and models may be added to this list in the future.
LIST OF TRANSCEIVERS
ILLEGAL TO IMPORT OR MARKET
NOTE FROM QTH.COM: This list was modified to include additional radios. Radios that were added are displayed with a hotlink to the documentation and/or reason for the addition
ALBRECHT - model: AE-497
COBRA - model: 200 GTL DX
DRAGON - model: SS-497
EAGLE - models: 2000 (same radio as the Saturn) and 5000 (same radio as the Saturn Turbo).
INTEK - model: Multicom-497
NORTH STAR - models: NS-3000 and NS-9000
PRESIDENT - models: Grant, J.F.K., Jackson, Lincoln, HR-2510 and HR-2600
PRO STAR - model: 240, 400
RANGER / RCI - models: AR-3500, RCI-2900, RCI-2950, RCI-2950-DX, RCI-2970, RCI-2970-DX, RCI-2980-WX, RCI-2985-DX, RCI-2995-DX, RCI-6300, RCI-6300 Turbo, RCI-6300F-25, RCI-6300F-150, RCI-6900, RCI-6900 Turbo, RCI-6900F-25, RCI-6900F-150, RG-99, Voyage VR-9000
STRYKER - model: 440
TEK - model: HR-3950
UNIDEN - models: HR-2510 and HR-2600
For further information concerning the listed transceivers or similar models, contact Ray LaForge or Gary Hendrickson at the FCC Laboratory, 7435 Oakland Mills Road, Columbia, MD 21046, (301) 362-3041 or (301) 362-3043 respectively, or E-mail: [email protected] and [email protected]
When asking the FCC about other Ranger radios that appear to be easy to modify for 11 meter operation, but are not specifically listed above, the reply received was:
Date: Mon, 04 Feb 2002 14:44:21 -0500Based on this information, other radios may be added to this list, if we receive information that they are extremely easy to modify for 11 meter operation.
From: "Gary Hendrickson" <[email protected]>
We have not had the opportunity to evaluate these two models of Ranger radios, so I can't specifically that they are illegal. We would be happy to evaluate these models, if a "virgin" unit could be obtained from the manufacturer. But until we have such an opportunity, we must assume that they are legal, in that they are not designed and intended to have the capability of easily being altered to operate outside of the amateur bands.
However, if you can determine, on your own, that out-of-band capability does exist, as defined in the other FCC information which you already have, then you could reasonable assume that they are not legal.
73, Gary Hendrickson
here is where I got mine CB world will help you out give them a call.
this is from an old post of mine when i got my CB:Uniden 520 xl $39.00 off ebay,new
Here is what I got from CBworld, it works perfect for me. The 18' coax has a PL259 connecter on one end that goes into the radio and a lug for the stud assembly for the antenna. I snaked it thru the tailgate no problem. I also ran a short ground wire from the tub of the jeep to the frame , I couldn't get my SWR's down until I did that. Grounding the antenna mount is most important. With the lug type connecter on this cable it has its own ground wire to screw on to the mount.
AUD402 Adjustable Universal CB Radio Mounting Bracket
Everhart TSM4-R Four Foot SUPER FLEX WAVECB Antenna , this is super flexable good antenna, trail tested
$11.50 . It does need to be tuned for the right swr, you will need a SWR meter and you will end up cutting a few inches of the wire off to make it right. You just take the pastic top off the top of the antenna and pull the inside wire out little by little and check the swr as you cut it to the right length.
KCB5SS Stainless Steel Lug Stud Antenna Mount $4.95
PL8X18 18 Foot RG8X Coax $16.99
K1A PUSH-N-TWIST Quick Disconnect Replacement for R1A $13.99
This table is the frequency chart for the legal Citizens Band Radio Service. There are 40 channels, designated 1 through 40. The service is AM but also allows for SSB operation on radios that are capable. CB, as it is called, is a two-way voice communication service for use in your personal and business activities. Expect a communication range of one to five miles. License documents are neither needed or issued. CB Rule 3 provides your authority to operate a CB unit in places where the FCC regulates radio communications, as long as you use only an unmodified FCC certificated CB unit (CB Rule 9). An FCC certificated unit has an identifying label placed on it by the manufacturer. Per the FCC, there is no age or citizenship requirement. You may operate your CB unit within the territorial limits of the fifty United States, the District of Columbia, and the Caribbean and Pacific Insular areas ("U.S."). You may also operate your CB on or over any other area of the world, except within the territorial limits of areas where radio-communications are regulated by another agency of the U.S. or within the territorial limits of any foreign government. You may also be permitted to use your CB unit in Canada subject to the rules of Industry Canada; other countries may also allow CB frequency use but it is your responsibility to verify that prior to use.
There are no height restrictions for antennas mounted on vehicles or for hand-held units (CB Rule 8). For structures, the highest point of your antenna must not be more than 20 feet above the highest point of the building or tree on which it is mounted, or 60 feet above the ground. There are lower height limits if your antenna structure is located within two miles of an airport. You may use any of the 40 CB channels on a "take-turns" basis. These channels must be shared by all CB users. There are no channels authorized in the CB Radio Service above 27.405 MHz or below 26.965 MHz. No CB channel is assigned to any specific individual or organization (CB Rule 7). Be cooperative. Keep your communications short. Never talk with another station for more than 5 minutes continuously. Then wait at least one minute before starting another communication (CB Rule 16). Use Channel 9 only for emergency communications or for traveler assistance. For complete information, see the Commission's Rules for the Citizens Band (CB) Radio Service, 47 C.F.R. 95.401-95.428. You may also find interest in the Family Radio Service (FRS) Frequency Table, General Mobile Radio Service (GMRS) Frequency Table, Multi-Use Service (FRS) Frequency Table, and the Wireless Medical Telemetry Service (WMTS) Frequency Table. Besides this CB service, the others in the same category (but not the same general purpose, are MURS, Multi-Use Radio Service, the Low Power Radio Service (LPRS) at 216-217 MHz, the Medical Implant Communications Service (MICS), the Family Radio Service (FRS) at 460 MHz, and the Wireless Medical Telemetry Service (WMTS).
As of January 4, 2011, the regulations concerning CB radio operation in the US remain in place as they have been since August 3, 2004.
|1||26.965 MHz||21||27.215 MHz|
|2||26.975 MHz||22||27.225 MHz|
|3||26.985 MHz||23||27.255 MHz|
|4||27.005 MHz||24||27.235 MHz|
|5||27.015 MHz||25||27.245 MHz|
|6||27.025 MHz||26||27.265 MHz|
|7||27.035 MHz||27||27.275 MHz|
|8||27.055 MHz||28||27.285 MHz|
|9||27.065 MHz||29||27.295 MHz|
|10||27.075 MHz||30||27.305 MHz|
|11||27.085 MHz||31||27.315 MHz|
|12||27.105 MHz||32||27.325 MHz|
|13||27.115 MHz||33||27.335 MHz|
|14||27.125 MHz||34||27.345 MHz|
|15||27.135 MHz||35||27.355 MHz|
|16||27.155 MHz||36||27.365 MHz|
|17||27.165 MHz||37||27.375 MHz|
|18||27.175 MHz||38||27.385 MHz|
|19||27.185 MHz||39||27.395 MHz|
|20||27.205 MHz||40||27.405 MHz|