Icom ID-52 Repeater Experiments

Introduction

FM Repeaters - An Introduction

Repeater Book App

Repeater Book App

Local Repeaters

Repeater Book - Specific station

ICOM ID-52D Add Repeater - Instructions

• ICOM ID-52D Add Repeater
• Get into VFO Mode
• Use the top knob to change the freqency.
• To alternate between higher and lower frequencies click the VFO button
• Click on the Menu button
• Select Set using the middle button
• Select DUO/TONE
• Select Repeater Tone
• Use knob to change tone (e.g. 91.5)
• Then select TSQL Freq
• Click on VFO button to escape from Menu

• Click on QUICK button
• Select DUP - Duplex
• Select DUP-
• Select TONE

Add to Memory

• Hold down MR key
• Select WRITE To NEW CH new channel
• Find blank channel
• Push middle button
• Click YES to write to new channel.

Edit name of Memory Channel

• Change to Channel mode (Memory Mode) by clicking on MR button
• Find Memory
• Hold down MR to Edit
• Select Edit with the middle button
• Click QUICK button
• Select NAME
• Enter characters for name
• Press QUICK to exit
• Select <<Write>> to save changes.

Set Squelsh

• Push down SQL button.
• Adjust using Top knob

Escape from Menu

• Press VFO button.

Power setting

• Click on LO button (right indicator button)
• Adjust power level from Low to High.

Repeaters around Melbourne

VK3RHF - Melbourne North West, Mt Macedon

• Receive frequency 438.875
• Transmit frequency 431.875
• 70cm
• FM
• Offset frequency -7.0 MHz
• Repeater tone 88.5 Hz
• 53.3 km North West
• First contact 19 Oct 2023
• Tested - OK

VK3 RSE - Melbourne East, Glen Waverley

• Receive frequency 439.9000
• Offset frequency -5.0 MHz
• FM Carrier
• 26.1 South east
• Tested - OK

VK3 RCC - Melbourne, CBD East

• Receive frequency 438.025
• Offset frequency -5.0 MHz
• Repeater tone FM 91.5 Hz
• 16.7 km South West

VK3 RAJ - Ferntree Gully, Upwey

• 439.7500
• -5 MHz
• FM 91.5 Hz
• 34.5 km South East

VK3 RML - Ferntree Gully, Ferny Creek

• 146.7000 MHz
• -0.6 MHz
• FM 91.5 Hz
• 33.7 km South East

VK3 RMS - Sassafras, Olinda

• 438.2250 MHz
• -5.0 MHz
• FM 91.5 Hz
• 34.1 km South East

VK3 RMC - Dandenong Sth, Narre Warren

• 439.875 MHz
• -5.0 MHz
• FM 91.5 Hz
• 43.8 km South East

VK3 REC - Sassafras, Olinda

• 147.1750 MHz
• +0.6 MHz
• FM 91.5 Hz
• 34.2 km South East

VK3 RHF - Melbourne East, Olinda

• 438.750 MHz
• -5.0 MHz
• FM 88.5 Hz
• 34.2 km South East

VK3 RSP - Rosebud, Arthur's Seat

• 146.675 MHz
• -0.6 MHz
• FM 88.5 Hz
• 75.7 km South

VK3 RSU - Melbourne, Police Academy Site

• 438.100 MHZ
• -7.0 MHz
• FM 91.5 Hz
• 26.2 km South East

VK3 RMN - Kinglake Central, Kinglake

• 146.850 MHz
• -0.6 MHz
• FM 91.5 Hz
• 29.7 km North East

VK3 RPU - Rosebud, Arthur's Seat

• 439.850 MHz
• -5.0 MHz
• FM 91.5 Hz
• 75.9 km South

VK3 RMU - Healsville, Mt St Leonard

• 147.375 MHz
• +0.6 MHz
• FM 91.5 Hz
• 43.8 km East

VK3 RSB - Healsville, Mt St Leonard Tower

• 439.550 MHz
• -5.0 MHz
• FM 91.5 Hz
• 43.8 km East

VK3 RGL - Geelong North, Mt Anakie

• 147.000 MHz
• -0.6 MHz
• FM 91.5 Hz
• 72.3 km West

VK3 RMM - Mount Macedon, Mt Macedon

• 147.250 MHz
• +0.6 MHz
• FM 91.5 Hz
• 52.9 km North West

VK3 RBO - Bendigo, White Hills

• 438.025 MHz
• -5.0 Hz
• FM Carrier
• 124 km North West

Eltham, Kangaroo Ground

• VK3RMH
• 70cm
• 438.32500 Rx
• 433.32500 Tx
• -5.0 MHz
• FM
• 91.5 Hz

Melbourne, CBD East

• VK3RCC
• 438.02500
• -5.0 MHz
• FM
• 91.5 Hz

2 Metre Band - Simplex Mode

• 146.50 - National Voice Calling Frequency
• 146.425 - 146.600 - FM Simplex (25 kHz channels)
• 146.55 - one example of an FM Simplex frequency

Terminology

Half-Duplex

The term "half-duplex" refers to a communication mode or method in which data transmission can occur in both directions but not simultaneously. In a half-duplex communication system, devices or parties can transmit data, but only one at a time. While one device is transmitting, the other device(s) must listen and wait for their turn to send data. This is in contrast to full-duplex communication, where data can be transmitted simultaneously in both directions.

A common example of a half-duplex communication system is a walkie-talkie or a two-way radio. When one person is talking into the walkie-talkie, the other person must wait until the first person finishes speaking before responding. They cannot talk at the same time because the communication is half-duplex.

Half-duplex communication has its advantages in situations where only one device can transmit at a time, reducing the chances of data collisions and simplifying communication protocols. However, it can also result in increased latency and reduced overall data transfer rates compared to full-duplex communication, where devices can transmit and receive data simultaneously.

Co-linear

The term "co-linear" refers to objects or elements that are arranged in a straight line. In the context of antennas, "co-linear" typically refers to multiple radiating elements or conductors aligned in a straight line, usually along a common axis. These elements are designed to work together to achieve a specific antenna configuration or radiation pattern.

Co-linear antennas are popular in applications where multiple radiating elements are used in parallel to enhance performance, gain, or radiation characteristics. For example, in a co-linear dual-band antenna, two radiating elements are aligned in a straight line to support two different frequency bands, effectively extending the antenna's capabilities.

The "co-" prefix in "co-linear" signifies the idea of "together" or "in conjunction," indicating that the elements are aligned and work in harmony to achieve a common purpose. This term is widely used in the field of antenna design and telecommunications to describe antennas with multiple elements aligned along a common axis.