Vhf radio propagation software

This windows free software is a tool used to predict the performance of a radio system. Calculations radio mobile rf propagation simulation software. Radio propagation prediction software an overview, article, tutorial about the basics of radio propagation prediction software for use on the hf bands for predicting broadcast coverage, as well as the possibility of establishing two way radio communications, maritime mobile radio communications, and for many more applications. The program simulates rf propagation and is for free to the amateur radio community. Radio propagation between locations within the grayline region of the world is often greatly enhanced. Nautel limited hacketts cove, ns canada abstract broadcasters are often confronted with questions about fm, tv and stl propagation, such as is it more effective to raise my antenna 100ft, or increase the. He is passionate about vhf uhf 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 ve3va3 and new brunswick ve9.

Qradiopredict radio propagation prediction and simulation tool for vhfuhf, based on the irregular terrain model, also known as longleyrice. Our software features land mobile vhf, uhf 800mhz, microwave, etc. This beacon system is a well thought out and nicely. Radio mobile rf propagation simulation software radio. Acehf professional propagation software for hf radio operators. Dx toolboxs grayline map makes it easy for you to determine where those locations are.

What a beauty my guess you 3dprinted the case, did a small lithium powered job with gps and basic hmi is done through oled and the front buttons. A abstract this paper presents and compares measured propagation data taken at four unlicensedband frequencies. Rf propagation is the transmission of radio signals from a transmitter to a receiver. A free vhf uhf coverage mapping and pointtopoint analysis tool to help you determine how far a new transmitter is going to go, or what happens if you change transmitter power, antenna location, or antenna height and gain. Dx toolbox shortwave ham radio hf radio propagation. This algorithm became the basis for the governments irregular terrain model itm software, which, in turn, was adopted by the fcc as the approved method for computing service contours and interference between fixed stations. Propview propview uses the included ioncap propagation prediction engine to forecast the minimum and maximum useable frequencies between two locations over a specified 24 hour period. The sting in its tail is the proposed relegation of amateur radio to secondary status of the widely used twometer band 144 mhz to permit its usage by aircraft. By correlating hops with the position at each end of the hop, distances can be inferred. Tap is used by federal agencies, statelocal public safety departments, energy companies, utilities, and consultants to evaluate radio transmitter sites. A free online vhfuhf propagation tool for technical and nontechnical users charles w. In addition to creating a pretty light show mostly in upper latitudes, ham radio signals scatter off of these particles and can greatly enhance propagation on the vhf and uhf ham radio bands. I hope that this website will be your guide for radio mobile and in to the exciting world of radio planning. High frequency and vhf radio propagation data, solar and geomagnetic realtime and historic data, as well as forecasts.

Radiolink propagation prediction calculate path losses of a pointtopoint radio link. It displays not only the current status of the hf and vhf bands, but also additional solar and terrestial progatation related data. These tools are part of the new nautel rf toolkit, available free online at the website. Propagation prediction programs and forecasts radio society. As you know, higher frequencies travel primarily lineofsight. Here is a brief overview describing the range of wireless data communication coverage for various wireless technologies. Currently it works on linux and windows 32 bit vista tested. The map is created using latlong info, and hops from node to node that data travels. Sunspot numbers on april 2529 were 11, 14, 12, 0 and 24, giving a weekly average of 8. Understanding mountain radio signal paths mendo radio. Terrain analysis package tap radio propagation software. Tap rf radio microwave design, analysis, and planning software. Hf propagation is a handy little ad supported windows phone 7 application to inform ham radio operators and short wave listners about the current band conditions. Vhf radio frequencies software free download vhf radio.

Jan 20, 2020 radio propagation radio propagation is the study of how radio waves travel from a transmitter site to a receiver site through the atmosphere. A free online vhf uhf propagation tool for technical and nontechnical users charles w. A comprehensive propagation resource compiled by tomas hood, editor of the propagation columns of cq, cq vhf, popular communications, and monitoring times magazines. Solar weather, sunspot activity, geomagnetic, aurora, ionospheric reports via. Arrl propagation classifications for vhfuhf propagation modes are tropospheric refraction and ducting including lineofsight paths, divided into in three categories. Use this handy radio propagation tool to create and save colorful coverage maps. Conventional vhfuhf analog trunking and traditional twoway radio. A common core of software is used by all the programs but different propagation algorithms are used for different classes of radio systems. Softwright, a gsa contract holder, is the developer of the terrain analysis package tap pcbased terrestrial rf propagation software. Radio mobile radiomobile is an excellent and very detailed radio path mapping software, vhf uhf propagation predictor. Understanding the effects of varying conditions on radio.

Hamcap hf propagation prediction tool for amateur radio. Qradiopredict is an experimental software for vhf uhf propagation prediction and radio coverage analysis. High frequency hf propagation models 230 mhz irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation model gierhartjohnson airground millimeterwave propagation. Nautel has partnered with rf engineer roger coude, the author of radio mobile1 to provide simple, fast online vhfuhf coverage mapping and point to. Create terrain profiles using digital elevation models. Irregular terrain model itm longleyrice 20 mhz 20 ghz if77 wave propagation model gierhartjohnson airground. Radio mobile updated radiomobile is an excellent and very detailed radio path mapping software, vhf uhf propagation predictor. Hf propagation prediction tool for amateur radio system requirements.

Solar weather, geomagnetic, aurora, ionospheric reports via ealerts and webpage. G0kyas monthly propagation forecast and analyses mac forecaster for mac from black cat systems propview propview uses the ioncap propagation prediction engine to forecast the minimum and maximum useable frequencies between two locations over a specified 24 hour period. Grayline propagation has been used by expert ham radio operators and dxers for years to catch elusive stations. Current sunspot cycle activity, space weather, solar storm. The basic concepts behind hf propagation using the ionosphere are easy to understand, and a study of it is not only fascinating, but also very useful for anyone involved in hf radio communications in any way. Arrl propagation classifications for vhf uhf propagation modes are tropospheric refraction and ducting including lineofsight paths, divided into in three categories. Qradiopredict is an experimental software for vhfuhf propagation prediction and radio coverage analysis. High levels of aurora can also make hf ham radio propagation via polar routes difficult. 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 ve3va3 and new brunswick ve9. Remember you need a amateur radio licence if you are going to be transmitting. Propagation comparisons at vhf and uhf frequencies xiaohu zhang, student member, ieee, thomas weston burress, keith b. The backbone of vhf amateur radio may be under threat. Nov 30, 2014 don is a 16year veteran of the telecommunications industry and a licensed canadian ham radio operator since 1988.

It uses data gathered by automatic packet reporting systeminternet service aprsis from packet stations in the amateur radio service. Software tools for the planning of vhf, uhf and microwave systems. Dec 16, 2014 hf propagation prediction tool for amateur radio system requirements hardware. Back in my younger days i worked a lot of 50 mhz, 144 mhz, 220 mhz, and 432 mhz. Raveons data radio modems are longrange fcc certified data radios designed for telemetry, scada, avl, wireless data, mobiledata, remote control applications. This beacon system is a well thought out and nicely implemented beacon network with a set of. I worked some eme earthmoonearth, or moon bounce during those days back in the 70s and early 80s.

Send formated dx spots indicating clearly both locators and the type or propagation. Propagation of rf signals american radio relay league. The radio coverage tool is based on the longleyrice vhfuhf its model2, and includes a nearly 1 terabyte digitized worldwide terrain database, based on nasa shuttle radar terrain mapping data as well as other sources. Don is a 16year veteran of the telecommunications industry and a licensed canadian ham radio operator since 1988. Broadcast fcc part 73 vhf and uhf propagation for tv and fm broadcasting carey fcc part 22 generates a family of curves defined by the fcc for land mobile radio propagation hatadavidson propagation in 30 1500 mhz using height above average terrain haat. Radio mobile online is a radio wave propagation prediction tool created and maintained by roger coude, ve2dbe, which is dedicated for use by the ham radio community. Winprop radio planning tool with highly accurate wave propagation models for rf coverage prediction in rural, urban, indoor, tunnel, stadium scenarios. This is a list of my vhfuhf century club program vucc totals.

Vhfuhf propagation planning for amateur radio repeaters. Oct 08, 20 a free vhf uhf coverage mapping and pointtopoint analysis tool to help you determine how far a new transmitter is going to go, or what happens if you change transmitter power, antenna location, or antenna height and gain. The characteristics of a propagating rf signal largely depends on the radio frequency, geographic terrain, foliage, buildings, and varying weather conditions. Radio propagation prediction, radio coverage analysis and.

As a form of electromagnetic radiation, like light waves, radio waves are affected by the phenomena of reflection, refraction, diffraction, absorption, polarization, and scattering. As indicated on the radio mobile online website, it uses digital terrain information and a mathematical model to simulate radio transmissions between two fixed sites or between a. Vhf radio frequencies, free vhf radio frequencies software downloads, page 3. Winprop software for wave propagation and radio planning. Radio signals are affected by terrain elevation between the sites, and obstructions, including trees, buildings, etc. High frequency and vhf radio propagation data, solar and geomagnetic realtime and historic data, sunspot activity reports, as well as forecasts. While listening or planning to work a dx station, the radio amateur would like to know what are the current propagation conditions, know if the propagation is open toward a specific location at a specific time, or at what time the band will be open for a specific pointtopoint circuit. A free online vhfuhf propagation tool for technical and non. Jan 20, 2020 to this website dedicated to radio mobile. Propagation prediction programs and forecasts radio. Uses openstreetmap tiles or public sattelite imagery as background.

Cu, remko pe1mew click on the subject of your interest in. Radio propagation prediction software electronics notes. Ionospheric propagation is the main mode of radio propagation used in the mf and hf portions of the radio spectrum. The most foundational level of understanding lies in mastering wireless rf coverage. Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another, or into various parts of the atmosphere. The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending of vhf, uhf andor microwave radio waves. This software by roger coude ve2dbe predicts the performance of vhf and uhf radio systems. Tap is comprised of individually licensed software modules, which may be. These will be the first bands to show the effects of es. Vhfuhf radio propagation in mountainous terrain can be difficult and sometimes may seem impossible. Other frequencys are used for broadcast of radio and tv vhf and uhf, 50800 mhz and a small portion for pamr and pmr networks. Radio propagation radio propagation is the study of how radio waves travel from a transmitter site to a receiver site through the atmosphere. Hf high frequency and vhf radiowave propagation center. This isnt a complete guide to vhfuhf propagation, but it at least gives you a flavour of two modes to look out for.

I have always had an interest in the vhfuhf weak signal segment of our ham radio hobby. The rest of information is useless and it doesnt interest anybody. Review of propagation prediction programs voacapbased. Free online vhfuhf propagation tool for technical and non. Vhfuhf propagation radio society of great britain main. The international amateur radio union iaru has adapted the north california dx foundation beacons system as the defacto structured network of hf radio cw beacons for propagation assessment for use by radio amateurs for monitoring radio propagation prospects on the hf radio dx bands. Microdem also has a couple of additional radiorelated functions. Unlike hf, they do not reflect off the ionosphere, so their range can be rather limited although knowledgeable dxers know special tricks, like meteor scatter. Irregular terrain model itm longleyrice 20 mhz 20 ghz if77. Feb 25, 2015 qradiopredict is an experimental software for vhf uhf propagation prediction and radio coverage analysis. Vhf radio systems have better coverage than uhf systems due to the better bending of vhf frequencies. Nov 25, 2019 the international amateur radio union iaru has adapted the north california dx foundation beacons system as the defacto structured network of hf radio cw beacons for propagation assessment for use by radio amateurs for monitoring radio propagation prospects on the hf radio dx bands. A free online vhfuhf propagation tool for technical and.