Shahr-e Bābak PMR Network Design

Design and simulation of a Private Mobile Radio (PMR) network for Shahr-e Bābak City, Iran, using Radio Mobile software.
The project features VHF and microwave link configurations, optimized repeater placement, and comprehensive coverage analysis (~99.78% area coverage).

Project Overview

This project aims to deliver a robust, wide-area PMR network for both digital voice and data transmission.
The network covers a 100 km × 100 km area with Shahr-e Bābak at the center, providing reliable communication between users and the operations center.

Network Design

VHF Links

• Frequency: 166 MHz
• Modulation: ETSI Digital Mobile Radio (DMR)
• Mobile Units: Motorola DM4000e (40 W, sensitivity 0.18 µV)
• Repeaters: Motorola SLR5500 (50 W, gain 5 dBi, height 10 m)

Microwave Links

• Frequencies: 7–38 GHz (depending on link distance)
• Configuration: Each repeater connects to at least two others for redundancy
• Antennas: THP 08 100 D WB, gain 36.7 dBi, diameter 0.8 m

Results

• Coverage Area: ~9978 km² (99.78% of target region)
• Safety Margin: ≥ 10 dB above modulation threshold for all links
• Repeaters Used: 3 strategically placed at elevated sites
• Microwave Connectivity: All links clear line-of-sight

Project Files

• PDF & PPTX Report – Detailed technical documentation and presentation
• Radio Mobile Files – .dat, .net, .geo, .inf, and coverage maps (.bmp)

Key Features

• Wide-area digital voice & data PMR network
• Optimized repeater placement for cost-efficiency
• Dual VHF & microwave link design
• High reliability with redundancy
• Scalable for future expansions