RF Path

May 5, 2024

- Fixed ITM upper frequency limit - Bug fixes

October 11, 2021

- Added support for iOS 15 - Bugs fixes

September 14, 2021

- This version added three propagation models - Okumura-Hata - COST-231 Hata Extension - COST-231 Walfish-Ikegami.  - The option to display maximum range rings around the transmitter and receiver site locations were added. Corrected bugs.

April 25, 2021

Version 3.0 adds: - Path model includes entering EIRP and receive system sensitivity to determine overall RSSI. - Detailed information for each point in the propagation path - Rain region affects (ITU and Crane rain fade models) - Decimal latitude/longitude, Degrees/Minutes/Seconds (DMS), Universal Transverse Mercator (UTM), Military Grid Reference System (MGRS) coordinate systems - Map search by address, location name, or coordinates (Lat/Lon, DMS, UTM, MGRS). - Ability to edit site locations - Display of calculated propagation noise floor - Bit Error Rate (BER) threshold selection - Modulation selection

April 24, 2020

Version 2.3 adds - Bug fixes - Support for Dark Mode - User Interface improvements - Added launch screen

November 30, 2019

Version 2.2 adds: - Edit location of transmitter or receiver locations. Select the site then press and hold the site icon. Drag the site icon to the deisred location. The "Save" button must be used to update the site location. - Displays nearest (approximate) address of the transmitter and receiver.

August 8, 2019

Version 2.1 adds: - Ability to turn plots on or off on the graphs for area predictions and point-to-point predictions. - Check for Internet connection before calculating point-to-point prediction. Version 2.0 added: RF Path now provides Point-To-Point path loss predictions between two latitude/longitude pairs (transmitter and receiver) in addition to providing general RF path loss predictions for an area coverage. The Point-To-Point predictions use the latitude/longitude pairs to retrieve the terrain profile between the points then calculates the loss prediction along that path. The transmitter and receiver locations may be set by either entering the latitudes and longitudes (in decimal format) directly into the input fields, or by selecting locations on a map. To set the transmitter and receiver locations on the map, first move the map the desired location then perform a long-press to first set the transmitter location. Move the map to the desired receiver location and perform a second long-press on the map to set the receiver location. Either location may be re-selected by using the "Remove Transmitter", "Remove Receiver", or "Remove All". After one of the locations is selected on the map a line is drawn from the set location to the second location on the map. Once the results are displayed, rotate your device to display a graph depicting the results. The graph for the area prediction shows the free space loss and the path loss for the confidence levels entered. The graph for the point-to-point prediction shows the free space loss, the path loss along the path, and the terrain profile.

July 19, 2019

Version 2.0 provides: - Point-To-Point Prediction Mode - Terrain profile between latitude/longitude pairs RF Path now provides Point-To-Point path loss predictions between two latitude/longitude pairs (transmitter and receiver) in addition to providing general RF path loss predictions for an area coverage. The Point-To-Point predictions use the latitude/longitude pairs to retrieve the terrain profile between the points then calculates the loss prediction along that path. The transmitter and receiver locations may be set by either entering the latitudes and longitudes (in decimal format) directly into the input fields, or by selecting locations on a map.

March 5, 2018