Define radio systems with predefined settings and gear to quickly create coverage maps. John vk5dj publishes a number of software products, including the rd logger, a vhfuhf yagi calculator, a repeater controller, a weather data converter and a beam indicator. The procedure to sign up for the repeater coordinator program will be. Repeaters allow us to communicate effectively with ham stations at distances. For more sophisticated radio coverage analysis, theres radio mobile images taken from the radio mobile website. The data represents the repeaters frequency, offset, ctcss, pl and notes such as if it supports irlp, echolink, autopatch, etc.
If the sysop has entered his repeater location information, the map in at the bottom right of the screen will show a green dot and zoomed in the area of the repeater. The simplest method to communicate on a ham radio is simplex. Hover on the top right icon on the map, and click the plot checkbox. Amateur radio ham radio repeater map levinecentral. The files include most of the 2m and 70cm analogcapable repeaters above. Our billing api works with most billing software programs. Refraction, however, is not taken into account so the two meter coverage is usually better than predicted, while the seventy centimeter coverage and above is fairly close. The shuttle radar topography mission is detailed enough to predict some radio shadows caused by large buildings. A terrestrial rf path analysis application for linuxunix.
Arrl, the national association for amateur radio 225 main street newington, ct, 061111400 usa tel. Va3xpr coverage map ham radio amateur dmr mobile online uhf. The standard time stations below will give you some indication of propagation conditions on ham radio frequencies. Give it a location anywhere in the us and it will generate a map showing potential signal strength in all directions from a transmitter site. We pride ourselves on welcoming radio hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Can be used as a repeater site planing tool and radio coverage analysis.
How to use a ham radio repeater simplex communications. Repeater mapping travel search, terrain analysis qrz forums. Grig supports the most commonly used cat commands that are implemented by hamlib, and integrates well with other ham radio. They were made with a wouxon kguv3d handheld, but the data should be able to be imported into any radio supported by the software. Repeaters approximate transmit coverage received by an average base station or stationary mobile radio. This means that you have the same channel for transmitting and receiving. Rather than buy one of the newer icom radios the issue for me was keeping abreast of new repeaters including d.
Primarily intended for vhfuhf, it can help plan repeater coverage or plan emergency communications. Rfinder now includes coverage maps american radio relay. The following links provide maps which show the signal strength receive levels from drc repeaters. Klink is a group of repeaters in kansas that provide seamless coverage over a large portion of.
Amateur radio operators in estimating pointtopoint link and repeater coverage. Packed with loads of rf power, this dual fancooled unit is perfect for amateur radio applications 2m, 1. This channel should not be used to chew rag talk on, but only to. Maps can be created for nearly every frequency range. A second nov will cancel the effects of the first variation in effect removing authorisation to operate the repeatergateway. All programming softwarekits can be found here, or on the product support page under the support menu. There is a book called the repeater map book that has repeaters listed on a map, from which you could deduce coverage to some extent.
He is passionate about vhfuhf repeater communications, especially using digital modes and he has owned and operated a number of ham radio repeater installations over the years, including ones in both the provinces of ontario. Our maps are based on actual rf propagation, topography, and land cover data. The outputs resulting from the program are under the entire responsibility of the user, and the user should conform to restrictions from external data sources. Coverage map below is a coverage map, which shows the approximate mobile coverage area for the va3xpr repeater. If you are using the supplied rubber duck then i would not expect the coverage map to be accurate.
The papa system is a membersupported widearea amateur radio network of interlinked analog fm, dstar, dmr, and system fusion repeaters, providing extensive coverage of the southern california region and beyond. We have reliable communications from the border with mexico to north of santa barbara, and from the arizona border to maritime. Im not even going to try to cover the capabilities of this program, since there are a lot of them, its not necessarily the easiest program to use, and im not an expert in radio engineering. Radio mobile online online rf propagation simulation software. The earth intercept method produces an estimated coverage map that, depending on the frequency of the source, can be between 95% to 99% accurate. The much higher repeater antenna increases the line of sight distance between your station and the repeater antenna tremendously.
Newest repeatercoverage questions amateur radio stack. It is intended to be highly generic presenting the user to the same graphical user interface regardless of which radio is being controlled. The data represents the repeaters frequency, offset. This repeater provides excellent coverage from turtle bay, kahuku to kahana valley, along oahus north east shore. Just remember that if your antenna is in fact at 5 12 feet, then a repeater antenna may be at 50 to feet or more above the flat ground beyond the horizon. The projected coverage map was built using radiomobil software targeted to articulate the coverage for handitalkies at 5w. Remember the station it hears on the input frequency of its receiver may be on a hand held radio and only a few blocks from the machine or it could be a mobile radio in a vehicle out on the fringes of the repeater coverage area or a base station running a high gain antenna and 100 watts from the next county or in some cases, the next state. Generated results are simply recommendations that, when referred to, are at the complete risk of the individual. Antenna and propagation modeling fedora documentation. Radio mobile is dedicated to amateur radio and humanitarian use. We are working every day to make sure our community is the best radio hobbyists site. Most amateur software is from overseas, but australian amateurs have also been active in the field. This information is critical as simplex nodes for internet linking, crossband repeaters and homebrew repeaters crop up worldwide using various new out of the.
Our simple to use system will allow you to create tower coverage maps for any geographical area in the entire world. Don is a 16year veteran of the telecommunications industry and a licensed canadian ham radio operator since 1988. This new capability will make repeater coordinators more efficient, as they will easily be able to see repeater coverage maps side by side for both coordinated and uncoordinated machines. Radio mobile online is a development of roger coude in which he. So far, the projected coverage map and the reality match accurately. This study is also the repeaters approximate receive coverage by a base station or stationary mobile radio with gain antenna transmitting at 50 watts using the main 100hz ctcss tone. Depending on the details entered and the time of day to which you have requested the rf coverage map to be generated, it may take anywhere from a few minutes to 20 minutes to produce the coverage map. Curation of software for amateur radio applications. I need some help with programming dp3400 portable and a dm3600 base radio.
An amateur ham radio repeater is a device that can receive a radio frequency signal and retransmit it on either a different frequency or with greater power or both. Once you have entered all of this information, radio mobile online will begin generating the rf coverage map for your transmitter location. All repeater novs are issued on a rolling 3 year term. If you are not currently using dmr and want to verify coverage in your area, you can tune into the va3xpr repeater transmit frequency on 442. Useful for mobile, handheld and base station amateur ham radio tranceivers, receivers and scanners by kenwood, icom and yaesu. Rsgb emerging technology coordination committee ukrepeaters maps. But, keep in mind that they transmit at much higher power levels than the ham radio maximum legal power limit in other words, when you can receive a signal from chu or wwv, it does not necessarily mean that the closest amateur radio. There are a number of computer programs to predict the coverage of base stations, repeaters, etc. These maps have been prepared by w6oav, using the freeware software radio mobile. Repeaters, gateways, nodes etc are licensed by means of a notice of variation nov on an individuals amateur radio licence.
Low level 4000 6000 7000 8000 9000 0 search help files. I have the leads and the software if anyone needs to borrow them. This search is designed to show wide area, open access repeaters along the selected route. I entered rfinder via rt systems programming software for my ic92d. Resources listed under rf coverage category belongs to software main collection, and get.
These maps have been prepared by w6oav, using the freeware software radio mobile, by ve2dbe the assumptions used for. Radio line of sight calculator for use on vhfuhf ham bands. Splat is a program for analyzing radio propagation over real terrain. This is the next site that will receive internet linking in the near future. For a radio coverage study, a colored plot over a topographical map is produced. Although commercial use is not prohibited, the author cannot be held responsible for its usage. Ham radio repeaters software free download ham radio. You have to know the repeater is there, it has to be operating, you have to know the access code, and someone has to be listening to it. The splat program uses an extensive database of terrain data from the us geological survey. Unfortunately, most of those are really only an approximation. The worldwidedx radio forum was originally established in 2001.