Correctly Cut and oriented Correctly, your signal will tag your target at some time during this day. Patriot Radio Channels. Because those organizations may very well be non-viable in grubby times. You may connect a MURS radio to an external or exterior antenna. At MURS frequencies, signals bend over hills better, but GMRS signals are better at bouncing off of surfaces and penetrating into/escaping out of buildings. The above graph shows the distance range comparison between two base stations using a basic antenna mounted on the roof of a suburban house with a height of about 20ft above ground level. I bring this up, because in order for this to be truly educational information, it must be true. For simplex radio to radio communication without a repeater station to re-transmit your signal, a horizontal antenna works better in deep valleys, provided you have an amplifier to boost your send and receive signal.
For a better experience, please enable JavaScript in your browser before proceeding. It may be way better for whatever form of data communications needed for a certain application at a certain time of day when the rubber meets the road.. It is reasonably priced while still letting its users enjoy its pre-programmed sixteen general mobile radio service (GMRS) channels. Second Media Corp., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada.
A forum community dedicated to survivalists and enthusiasts. Perseverance is key but Luck is acceptable. What is meant is we will communicate the same information on channel 9 AM, 19 USB and 19 LSB which will be done at the same time so as no matter which you are tuned to either AM or SSB, you will receive information on one. Shop the ITS Store for exclusive merchandise, equipment and hard to find tactical gear.
For vehicle-to-vehicle operation with external (roof-mount) antennas, MURS should provide, GMRS handheld radios have typically two to five watts transmitter power. GMRS vehicular units transmit typically with ten to 50 watts. 6104 W Pioneer Pkwy Ste 212Arlington, TX 76013[email protected]. I’ve been playing with the idea of doing a “survival radio” facebook page, but never have the time to figure out just how to do that. And it does a near perfect job of bringing the topic to a higher plane of consideration, and addresses some of the “band plan” ideas and preparations in the event of said grubby times… IE; “if it hits the fan, here’s the plan”.. or, “let’s meet here” is also addressed.
So, to answer your question, 20ft away, is about 0.004 mile (1/250th of a mile). Many GMRS radios can communicate through repeater stations for extended range (typically up to twenty miles or more, sometimes. Barry Green Some radio gear advertisements tout the maximum possible distance in perfect conditions, an often misleading specification that only technicians can achieve if they are both on mountain peaks or going through repeaters. Program Your Radio Frequencies for Freedom! The non-hardware changes will come in our OBSERVANCES of laws, “band plans”, established modes used in what part of the RF spectrum,, FCC restrictions and licensing, along with efforts and reasons for tracking down “violators” by whatever governing entity attempting to control “society”..
Distance on VHF will be somewhat less if a small rubber ducky antenna is used on the pedestrian radio instead of a full size antenna. The FCC, the ARRL et al should be totally ignored ONLY for the purposes of this study. All communications must also yield to any emergency communication on the same channel. I’m jus sayin — Currently-mandated operational limitations such as RF output power level, mode bandwidth, time of day/season and other variables are artificially imposed by governments and man.
It often leads to complex answers and heated discourse because so many factors influence the distance of radio communications…. Mostly obsolete as of September 28, 2017. Don’t forget though – licensing is required for GMRS use and in our opinion that 20-mile range is optimistic. The above graph shows the distance range between two pedestrian radios with whip antennas. Depending on the surrounding terrain, MURS units connected to roof-mounted antennas might even outperform full-power (50 watt) GMRS mobile units, although the GMRS units should have a greater range in open terrain. Another hidden benefit of MURS frequencies are the PL codes (Private Line codes) or CTCSS (Continuous Tone Coded Squelch System) which are sub-audible tones that allow users to operate on the same channel without hearing chatter directed to other users. nor is it “legal” to use on 11Meters — yet thousands of CB’ers and licensed hams, DO use them there, in spite of the laws on the books. Most now will allow for LSB as it is easier to do, adds no cost. Setting up radio stations at your base location is a no-brainer. As a HAM, I can tell you that there are a lot of licensed folks on the air that are not reliable – it;s like any other hobby, there are good and not so good members. It is not accurate, and can never be, until some brave patriot who has all that different gear uses it in ways that break current mandates. Having a license and interacting with a regular group of HAMs, you’ll know in an emergency which information is reliable and which is not, mostly because you’ll know who to trust. CB radio freeband (outside of the 40 channels) SSB can be a good practice for HAM radio. Communication distance can be greatly improved over this by advanced gain antenna systems or a high pole or a tower at the base station. In the real world, people want to know the normal dependable average range of a radio. It might be simply a differences in semantics, although I have to agree that to people new to RF physics, could get the wrong idea, simply because of the way its explained. Thanks for the post. Sometimes it better if the whole world doesn’t know what you are saying. Compared with FRS (Family Radio Service) at 460 MHz: Compared with GMRS (General Mobile Radio Service) at 460 MHz: Compared with CB (Citizens Band Radio) at 27 MHz: Keep in mind on all these comparisons that MURS has it’s benefits, but GMRS requires an FCC license to operate on. Change ), You are commenting using your Google account. Change ). MURS (at 150 MHz) permits four times more power (2 Watts TPO instead the 0.500 Watts ERP limit for FRS). Finally, its an impossible goal to put all this information in one place anyway. ( Log Out / Finally, most antennas are vertical orientation.
Longer range antennas, can be used on many bands with an antenna tuner. MURS radios can now be commonly found online at retailers such as Amazon.com and are starting to increase in popularity as more people find out what they’re missing. Short range radios–cheap reliable, easy to set up.
FRS radios must employ a non-detachable antenna. It is also become to our attention that the AM SSB is becoming more popular in the 4WD communities and truck Transport users . once the stuff hits the fan , you need not worry about FCC or laws, its on you to communicate in any way possible , so do what you have to do to be safe and informed. Gary. If you want your readers to understand things correctly, they need to be provided with accurate information. ‘Zackly. NONE of those were meant to be linked at the source as it stands now, with all the governing bodies dictating what can/cannot be used, but who knows? Thanx for the cool page, though. JavaScript is disabled. This thread is convoluted. And yes,I realize this is why the results are currently so skewed in my view. Because MURS isn’t as popular, channels won’t be as busy.
However, its popularity is being stifled by the fact that there really aren’t that many MURS radios to choose from. The original post here is very well laid-out. Survivalist Radios: Ham vs CB vs FRS vs MURS vs GMRS, HAM Prepper SHTF Survival Channel 146.550 FM Simplex, PMR446 Radios ------ PMR Prepper Channel 3. However, the POSSIBILITIES of effective communications WILL change to be functional… as-needed/ when needed. Medical Bag Updates: Repacking & Maintaining Over the Counter Medications, Go-To Preparedness Bags and Food Selections, Consider the Three P’s Before Packing for Your Next Trip, Foot Care: Treat Your Feet the Right Way to Avoid Blisters. The graphs compare the most commonly available 2-way radios such as ham, CB, FRS, MURS, and GMRS. ( Log Out / On the page describing “Freeband” and CB radio, you describe the difference in using USB as opposed to LSB modes. So I understand why we have this result. Program Your VHF UHF Transceivers for Disaster Preparedness with FRS GMRS PMR MURS BUSINESS WEATHER MARINE HAM Channel Frequencies SHTF Prepper Radio Frequency Lists SHTF Survivalist Radio Frequency Lists Propagation conditions, sunspots, LOS, and so many other factors play a huge factor in commo. This estimate is based upon radio-to-radio direct communications without the use of a repeater.
All Rights Reserved. (3) GMRS repeater input only. Having issued a distress call @ 470 Miles on 1/12th of one watt with a HF RT unamplified through a Doublet Antenna in a RTTY Rig during Desert Storm, my observation is that the cut and orientation of the directional Antenna is the most critical factor for long distance communication. MURS Radio.
Not to contradict you.. but in real world testing I have been doing since December with my GMRS (licensed) setup.. Not to contradict you.. but in real world testing I have been doing since December with my GMRS (licensed) setup..
The stipulations for MURS use provided by the FCC restrict any transmitter in excess of two watts, but any type of antenna is allowed as long as the tower height (with antenna) is no greater than 60 feet high.
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