View source for Icom ID-52 Repeater Experiments

= Introduction =

[https://www.hamradioschool.com/post/fm-repeaters-an-introduction FM Repeaters - An Introduction]

= Acknowledgements =
Big thank you to Joe and Julie from '''School Amateur Radio Club Network'''.
* '''Julie''' VK3FOWL 
* '''Joe''' VK3YSP
* School Amateur Radio Club Network® '''VK3SRC'''
* Web: www.sarcnet.org
* Email: info@sarcnet.org

= Repeater Book App =

Repeater Book App

[[File:Repeater Book App IMG 6537.PNG]]

Local Repeaters

[[File:Repeater Book local repeaters IMG 6535.PNG]]

Repeater Book - Specific station

[[File:Repeater Book specific station IMG 6533.PNG]]

= ICOM ID-52D Add Repeater - Instructions = 

* [https://youtu.be/PyBWcrhuAaQ 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.

== Formatting MicroSD card ==
* Click on '''MENU'''.
* Select '''SET > SD Card > Format'''
* Format OK '''YES'''.
* Formatting will take 10 seconds.

== Recording Voice ==
* Click on '''MENU'''
* Select '''Voice > Record'''
* '''PTT''' - Push to Talk will start voice recording.

== Recording a Conversation - QSO ==
* Click on '''MENU'''
* Select '''RECORD > QSO Recorder > <<REC Start>>'''
* This will record a session whenever PTT is pressed or a transmission is received on the radio.
* Stop recording with '''Menu > QSO Recorder > <<REC Stop>>''' 


== Recording QSO Audio ==
Recording a QSO audio on an Icom ID-52 refers to the capability of the Icom ID-52 handheld transceiver to record the audio of a QSO (conversation) that takes place during amateur radio communication. The ID-52 is equipped with a voice recording feature that allows you to capture and save the audio of your conversations with other amateur radio operators. This feature can be useful for various purposes, including:

* '''Logging and Documentation''': Recording QSO audio enables you to log and document your communications. You can review the recordings later for reference, to confirm details of the contact, or for keeping a record of your amateur radio activities.
* '''Verification''': In some cases, recording QSOs can serve as a means to verify or confirm contacts, especially for contests, awards, or verifying rare stations. You can provide evidence of your QSOs if needed.
* '''Training and Learning''': Amateur radio operators, especially those in training or learning about the hobby, can benefit from recording their QSOs. They can review their conversations to improve operating skills, learn about propagation, and practice contesting or DXing.
* '''Enjoyment''': Some operators simply enjoy capturing their QSOs as a hobby and for personal enjoyment. It allows them to relive interesting or memorable conversations.

The Icom ID-52 typically offers a recording function that allows you to start and stop recording during a QSO, and the recorded audio is saved on the device for later playback. You may need an external memory card to store the recorded audio, depending on the device's memory capacity.

Please note that when recording QSOs, it's essential to respect privacy and legal regulations regarding audio recording in your region. Always obtain consent from other parties involved in the QSO before recording.

= Repeaters around Melbourne =

== Best Repeaters for Tech School ==
* RHF - Melbourne East, Olinda
* RSE - Melbourne East, Glen Waverley
* RMS - Sassafras, Olinda
* RMN - Kinglake Central, Kinglake

== VK3RHF - Melbourne North West, Mt Macedon ==
* Receive frequency 438.875 MHz
* Transmit frequency 431.875 MHz
* 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 MHz
* Offset frequency -5.0 MHz
* FM Carrier
* 26.1 South east
* Tested - OK

== VK3 RCC - Melbourne, CBD East ==
* Receive frequency 438.025 MHz
* Offset frequency -5.0 MHz
* Repeater tone FM 91.5 Hz
* 16.7 km South West

== VK3 RAJ - Ferntree Gully, Upwey ==
* 439.7500 MHz
* -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

= Q-Codes =
* '''QSO''' - A conversation. '''I had a great QSO'''
* '''QSY''' - Change frequency. '''QSY to 146.425 (2m FM Simplex)'''
* '''QRZ''' - Who is calling? '''This is VK3 ZUW'''

= 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

= International Phonetic Alphabet =
* A - Alpha
* B - Bravo
* C - Charlie
* D - Delta
* E - Echo
* F - Foxtrot
* G - Golf
* H - Hotel
* I - India
* J - Juilet
* K - Kilo
* L - Lima
* M - Mike
* N - November
* O - Oscar
* P - Papa
* Q - Quebec
* R - Romeo
* S - Sierra
* T - Tango
* U - Uniform
* V - Victor
* W - Whisky
* X - X-ray
* Y - Yankee
* Z - Zulu

= 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.

== Co-Linear Dual Band Antenna ==
A co-linear dual-band antenna is a type of antenna designed to operate on two different frequency bands simultaneously. It is particularly common in applications like amateur radio, two-way radios, and wireless communication systems where the ability to transmit and receive signals on multiple frequency bands is essential. This type of antenna has multiple radiating elements, typically two, aligned in a straight line. Here are some key characteristics and features of a co-linear dual-band antenna:

* '''Dual-Band Operation''': Co-linear dual-band antennas are specifically designed for dual-band radios, which commonly operate in the VHF (Very High Frequency) and UHF (Ultra High Frequency) bands. These antennas can transmit and receive signals on both bands.

* '''Radiating Elements''': They consist of two vertical radiating elements that are typically arranged in a collinear configuration. These elements are usually half-wavelength dipoles for each frequency band.

* '''Phasing Section''': Between the two radiating elements, there is a phasing section that ensures that the signals are properly in phase for optimal radiation patterns and gain. This section may include phase lines or stubs.

* '''Connector''': Co-linear dual-band antennas are equipped with a connector that allows them to be easily connected to a radio or transceiver.

* '''Gain and Performance''': These antennas are designed to provide gain in both frequency bands, improving signal strength and coverage compared to a simple monopole antenna. The phasing section and collinear configuration contribute to their performance.

* '''Compact Design''': Despite their dual-band capability, co-linear dual-band antennas are often relatively compact and suitable for portable and mobile applications.

* '''Mounting''': They can be mounted on various structures, such as vehicles, towers, or masts, depending on the specific application.

* '''Omnidirectional''': Co-linear dual-band antennas are typically omnidirectional, which means they radiate and receive signals equally in all directions, making them suitable for applications where the source of signals may be in different locations.

These antennas are versatile and widely used in scenarios where both VHF and UHF bands are essential for communication, such as public safety, emergency services, amateur radio, and dual-band transceivers for ham radio operators. Their dual-band capability and omnidirectional nature make them valuable for reliable communication in various situations.