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AI    [Home]

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Antennas    [Home]

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        DOSS-Automatic-Antenna-Rotator
        Kenrotor-KR400-Antenna-Rotator
        Yaesu-Antenna-Rotators
            Yaesu-G1000DXC-Rotator
            Yaesu-GB232B-Serial-Interface
    Antenna-Theory
    Antenna-Towers
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        Emtron-EAT-300-Antenna-Tuner
        KitsAndParts-SWR-bridge
        LDG-Electronic-Z11-Auto-Tuner
        MR100-Digital-Antenna-Analyzer
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        QRP-ATU-Kit
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        G5RV
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            MLA-30+-Receiving-Loop
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            The-OCF-Dipole
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            23cm-Yagi
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        23cm-PA1296-43-3.6AUTHD
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APRS    [Home]

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AREDN    [Home]

    AREDN

Baluns-Unun-Transformers-Filters-Chokes-and-Toroids    [Home]

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            Duplexer-SGQ-450-25W-UHF
            Telewave-Preselector-Cavity
        Filters
        SMPSU-Grounding-and-Filtering
        vk-amps-Low-Pass-Filter
    Toroids

bin    [Home]

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Books-Training-Turtorials    [Home]

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Circuit-Design    [Home]

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Coaxial-Cables    [Home]

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Codes-and_Alphabetics    [Home]

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Contests-and-Logging    [Home]

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Digital-Modes    [Home]

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                Monday-Night-Net-2023-03-06
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        M17
        M17-nakhonthai-Analog-Hotspot-Gateway-Project
        M17-VK4GJD-Hotspot-Modification
        M17-VK4GJD-RT3S-Modification
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        Brisbane-P25-Project
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Earthing    [Home]

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    Marine-Earthing-Systems
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    svxlink

Electronic-Components    [Home]

    Capacitor-220pF-15KV-Ceramic-Monolithic
    Capacitors
        220pF-15kV-Ceramic
    Electron-tube-VT-121-VHF-and-UHF-Triode
    USB-C-Cables-Pinouts
    Variable-Capacitor-223F-Style-Dual-20pF-for-FM-Radio
    Variable-Capacitor-ALPS-JAPAN-4-Gang-Air-adjustable-20pf-320pf

Electronic-Devices    [Home]

    7-Inch-HDMI-LCD-Touch-Display-Monitor
    AC-220V-Variable-Voltage-Regulator
    Apple-MacBook_Pro_Model_A1278
    Automotive-Switches
        Toyota-Dash-Switch
    Batteries
        Lithium-Batteries
            Lithium-Cell-Charging-Theory
            Optimum-Ion-Lithium-Battery-SCAM
    Battery-Capacity-Tester
    Battery-Meters
        PZEM-015-Multifuctional-Battery-Meter
        WU100-Battery-Watt-Meter
    Cameras
        12MP-Smart-HD
        Foscam-FI8905W-IP-Camera
    Carbon-Car-Systems
    Datong-Morse-Tutor
    Diplexer-MFJ-916B
    HamShield-Transceiver-on-Arduino
    HDD-Toshiba-1808
    HDMI-7-inch-touch-screen
    LCR-T4-ESR-Meter
    Mesh-WIFI-Router
    Microphones
        Logitech-USB-HHC-0518
        Vivitar-Cardioid-Condenser-USB-Microphone
    Modbus-Controller-for-G-8-Channel-Relay
    Modems
        4G-LTE-A-Outdoor-Router
        hAP-ac-lite-RB952ui
        Huawei-E5186s-61a
            Huawei_E5186s-61a
        TG799vac
    Mystery-Devices
        Mystery-Device-02
            Grid-Dip-Meter-Unknown
    Network-Switch-Controller
    Nextion-HMI-LCD-Display
    Over-Voltage-Protection
    Parrot-Voice-Recorders
        Argent-ADS-SR1
    PSU-Power-Supply-Units
        Alinco-DM-330FXE
        Alinco-DM-330MV
        Alinco-DM-430E
        Astron-SS-25-Power-Supply
        Dell-AC255AS-00
        HP-DL580G5-DPS-1200FBA
        HP-DPS-700CB-A
        Manson-SPA8330B
        RD6012W-Voltage-Converter
        RFI-sm240-12-20-PSU
        Samlex-SEC-1335M
        SEC1212-13.8V-10A
    Relays
        Multi-Channel-Relay-Modules
    Siesmic-Detectors
    Signalking-SK-999WN-Ralink-3070
    Spot-Welder
    Stepper-Motors
        Stepper-Motors-NEMA-Sizes
        Stepper-Motor-TB6560-Driver
    Surge-Protection
        Surge-Protector-HX-POE2000E-Network-with-POE
        Surge-Protector-N-type-CA-23RP
        Surge-Protector-Polyphaser-IS-B50HU-C0-Coax
        Surge-Protector-UHF-CA-35RS
    SWR-Heathkit-AM-2
    Thermostats
        Wilhi-WH7016C-Thermostat
    TInySA
        TinySA
    Transistor-Tester
    Ubiquiti-900Mhz-Data-Link
    UPS-and-PDUs
        APC-AP8959EU3
        Eaton-9130-3000
        Powerware-5115-1000
    USB-Tester
        GY19760-USB-Monitor
        USB-Port-Testing-Module
        USB-Resistor-Testing-Load
    Wireless-Router-TOMLOV-8881

Electronic-Modules    [Home]

    4-Channel-Level-Shifter
    6-channel-coax-switch
    ACS712-Current-Sensing-Module
    ADF7021-High-Performance-Narrow-Band-Transceiver-IC
    AT35-Constact-Current-Buck-Boost-Module
    B1205LS-1W-DC-DC-Isolator
    BC417-Bluetooth-to-Serial
    CC2531-USB-ZigBee-Module
    C-Media-CM119A-USB-Audio-Controller
    Cytron-30A-5-30V-Single-Brushed-DC-Motor-Driver
    DC-BS003F3P6-Voltage-Alarm
    DC-Charge-Control-YX-X1208
    DC-DCM120100C-Bat-Meter
    DC-LM2596S-DS2596-1.5V-30V-Stepdown-with-LED
    DC-LM2596S-HCJ-IPM-V2-DC-Stepdown
    DC-LM358-Low-Voltage-Alarm-XU1001
    DS1307-Tiny-RTC
    DS18B20-Tempreature-Sensor
    DS3231-ZS042-AT24C32-I2C-Precision-RTC
    ESP8266-ADS1115-analog-to-digital-converter
    ESP8266-Battery-Sheild
    ESP8266-D1-Mini
    ESP8266-Development-Board
    ESP8266-ESP-01S-Single-Relay-Module
    ESP8266-MCP231017-i2c-io-port-expander
    ESP8266-MicroSD-Shield
    ESP8266-oled-D1-Mini-Wemos
    ESP8266-Relay-Shield
    ESP8266-Wifi-Module
    GPS-Active-Antenna
    GPS-Neo-7M
    GY-271-HMC5883L-3-Axis-Compass-Module
    GY-BMP280-Tempreature-Pressure-Sensor
    JK11-Adjustable-Cycle-Timer-Delay
    LCD-2004A-20X4-HD44780
    LCD-PCF8574-i2c-spi-Bus-Interface
    Lightning-AS3935-Franklin-Detector
    Lithium-Battery-Voltage-Tester
    LM386-QEV9780-Mono-Audio-Amplifier-Module
    MA5532-AS3935-Lightning-Strike-Detector
    MAX3232-RS232-to-TTL-Tiny
    MCP23017-SPI-I2C-IO-expander
    MCP4725-DAC-12bit
    MH-LDR-Photoresistor-Module
    Morse-Code-Decoder-K115680BSJH
    MPL3115A2-I2C-Precision-Altimeter
    MT88700S-DTMF-Encoder-Decoder
    NE555-Square-Wave-Pulse-Generator
    oled-6-pin-128x64-0-96-inch
    PCF8591_8-bit_ADC_and_DAC
    PCF8591-YL-40-Module
    Pizo-Buzzer-MH-FMD-Module
    PSU-DC-MT3608-DC
    PSU-MB201-Robot-Breadboard-PSU
    PSU-TL494-400W-15A-DC-DC-Step-up-Constant-Current
    PSU-XH-M229-ATX-Breakout-Module
    PSU-XH-M602-Mains-Relay-Battery-Monitor
    QMC5883L-GY-271-Three-Axis-Compass
    RFID-RC522
    SA818S_1W_Embedded_walkie_talkie_module_V1.1
    Signal-Generators
        QRP-Labs-ProgRock-2
        Si5351-IC2-Clock-Generator
    sr-201-Web-Server-Switch
    TB6560-Stepper-Motor-Driver
    USB-CM108-5.1-Channel-Sound
    USB-C-PD-Decoy
    USB-IP6505-QIC-Charger
    USB-MP1584-5V-3A-Single-Output
    USB-PSU-4-Port-5A-in-Case
    USB-PSU-4-Port-KIM055L-Style-TPS40057
    USB-PSU-Dual-Flat-5V-3A
    USB-PSU-Dual-Output-LM2596S
    USB-PSU-MH-KC24-charging-module
    USB-PSU-XY-3606-Single-Port
    USB-RS232-PL2303HX-Serial-Adapter
    USB-to-TTL-UART-YP-05-FTDI-FT232L
    W1209-Tempreature-Control-Relay
    W1701-Tempreature-Control-Relay
    WL101-341-443Mhz-Modules
    X-Phase-QRM-Eliminator
    YH11066B-Voltage-Monitor

FreeDMR    [Home]

    FreeDMR

Frequences-Repeaters-Nets    [Home]

    27Mhz-Citizen-Band-Frequencies
    Coverage-Maps
    Nets
    Repeater-Locations
    VHF-Marine-Frequencies
    VK4RMC-70cm-Repeater

HF-Digital-Modes    [Home]

    ALE
    FreeDV

Home-Automation    [Home]

    CC2531-Zigbee-CC2540-Sniffer-Wireless-Dongle

Home-Automation    [Home]

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Interference    [Home]

    Interference

Internet    [Home]

    Internet

IRLP    [Home]

    IRLP

Lightning    [Home]

    hbld
        Firmware-Upgrade
        GPS
        Grafana
        Home-Brew-Lightning-Detector
        MPL3115A2-Pressure-Sensor-Upgrade
        Nextion-HMI-LCD
        Splat2-Project
        Splat-Board
    Lighting-Detection

Linux    [Home]

    ajax
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    desktop-icons
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        dhcpcd
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    Discord
    dmrconfig
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    fiddler
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        gnu-plotutils
    gpsd
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    RPi
        Raspbian-Network-Setup
        RPi-Notes
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        Micro-SD-Test
    Secure-Shell-Setup
    Serial-Ports
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            md380-tools
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    VPS
        VPS-Setup
    WoeUSB-Win-boot-UBSs
        Windows-Bootable-USB
    yad
    zerotier
        zeroteir

Maps-and-Zones    [Home]

    Maps-and-Zones

Meshtastic    [Home]

    Meshtasic

Microwave    [Home]

    23cm-Band
    23cm-Beacons-and-Repeaters-near-Brisbane
    SG-Labs-23cm-Transceiver

MMDVM    [Home]

    Building-a-Simplex-Hotspot-Hardware
    Building-a-Simplex-Hotspot-Software
    DMR-Signal-Processing-Notes
    JumboSpot
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    MMDVM-DMR-Configuration
    MMDVM-Hardware-Concept
    MMDVM_HS_Dual_Hat_Duplex
    MMDVM_HS_Dual_Hat_Duplex_No2
    MTR2K-STM32-DVM
    Mutli-Mode-Digital-Voice-Modem
    Pi-Star
    Pi-Star
        pistar-scripts
    Repeater-Builders-STM32-DVM
        RB-STM32-DVM
        RB-STM32-DVM-to-IC-FR4000-Cable
        RB-STM32-DVM-to-IC-FR6000-Cable
        RB-STM32-DVM-to-TB7100-Cable
        RB-STM32-DVM-to-Yeasu-DR-1X-Cable
    Rodger-Clarkes-Zumspot-Build
    TB7100-Config-for-RB-STM32-DVM
    TB7100-RB-STM32-DVM-Troubleshooting
    TB7100-to-RB-STM32-DVM-Build

Morse-Code    [Home]

    Morse-Code

Network-Matching    [Home]

    Network-Matching

Organisations-and-Contacts    [Home]

    Bayside-District-Amateur-Radio-Society
        Bayside-District-Amateur-Radio-Society
        Mt-Cotton
    Brisbane-Amateur-Radio-Club
        Antennas-at-Brisbane-Amateur-Radio-Club
            VK4RBA
        Brisbane-Amateur-Radio-Club
            Brisbane-Amateu-Radio-Club
    Central-Highlands-Amateur-Radio-Club
    Darling-Downs-Amateur-Radio-Club
    Licence-Lookups
    Seychelles-Amateur-Radio-Association

Parks-and-Peaks    [Home]

    Field-Trip-with-VK4MGL

Parks-and-Peaks    [Home]

    Parks-and-Peaks

Projects    [Home]

    Coax-Switch-6-Way
    Digital-SWR-Meter
        Digital-SWR-Meter
        ON7EQ-Digital-SWR-Meter
    DMR-Repeater-Build-for-BARC
    Gaunella-Current-Balum-1-to-1
    GPSDO
        Alan-Cashin-GPSDO
        BG7TBL-GPSDO
    hbld
        GPS
        Splat2-Project
    nema-rpi-multiplexer
        
    QRP-ATU
    Rotator-Mechanical-Builds
    Terminal-Connectors-DIY

PV-Solar-Generator-Systems    [Home]

    Camping-Panel
    Lithium-Battery-Chemistry
    My-Photovoltaic-Generator-Systems
    Optimum-Ion-Lithium-Battery
    PV-panels
    SinoSolar-Panels
    SiriusForce-250Watt-Flexible-Panels
    SolarKing-100Ah-Battery-Rebuild
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        Victron-Venus-OS
    Wansun-250W-Flexible-Panel

Radio-Programming-Cables    [Home]

    6-cables
        6-Cables
    8-cables
    OPC-1122-FR4000
    OPC-592-F310-FR4000

Radio-Transceivers    [Home]

    Anytone-AT-D578UV-PRO
        AT-D578UV-Pro
    AnyTone-AT-D868
    Argent-Data-Systems-ADS-SR1-Simplex-Repeater
    Barrett-SB250
    BC-312-C-Receiver
    FlexRadio-6400
    GME-TX840A-UHF-CB
    Hermes-Lite-2
    Hotspots
        Installing-Pi-Star-image
        The-VK4RDB-DMR-Repeater
    ICOM
        CI-V-Interface
        IC-208H
        IC-705
        IC-7300
            IC-7300
            IC-7300-set-timer-script
            wsjt-x-on-IC-7300
        IC-970
        IC-FR4000-UHF
        IC-FR5000-VHF
        IC-FR6000-UHF
    Linear-Amplifiers
        DIY-Linear-Amp
            HF-MINIPA
        Hardrock-50-HF-Power-Amp
        MRF186-RF-Power-Amplifier-Kit
        RM-Italy-KL405-Amp
        XF-LPF-HF-Low-Pass-Multi-Band-Filter
    Motorola
        DM-4600
        MTR2000
        VX-4600
    Quansheng
        UV-K6
    QYT
        QYT-KT-8900
            QYT-KT-8900-Radios
    Radioddity
        GD77S
        OpenGD77
    Retevis
        Installing-the-RT3s-Code-Plug-Software
        Programming-the-RT3s
        Retevis-RT3s
        RT3s-Digital-Contacts
        RT3s-Firmware-Upgrade
        RT3s-Setting-Audio-Level
        RT3s-Windows10-Driver
            RT3S-Windows10-Driver
    SG-Lab
        Transverter-1296-144-V2.3
    Simoco
        SRM9000
            Loading-Profile-Data-from-csv-files
            Programming-Cable
            SRM9030plus-Head
            SRM9030
            SRM9030-Teardown
    Tait-Radios
        Tait-Line-Interface-Kits
        Tait-T2000-Radios
        TB7100-Repeater
            Tait-Radios-XMAD13-H5
            Tait-TB7100-Repeater-TBBH5H5
        TB9400-Repeater
    Ten-Tec-RX320D-DSP-Receiver
    Xiegu
    Yaesu
        DR-1X
        DR-2X
        FT1500M
        FT-7800R
        FTM-400XDR-DE

Remote-Radio-Control    [Home]

    Building-a-Repeater-Station
    GS232B-Commands
    Installing-RemoteHF-Linux
        Linux-Remote-HF-Install
    K3NG-Controller
        K3NG-Rotator-Controller
    Remote-Radio-Control-Applications
    Rotator-Server-FIles
        Yaesu-Rotators
    Rotator-Server-Project
        Rotator-Server-Project
    Specification-for-Site-Remote-Control-Radio-Station
    VK4MWL-Power-Supply
    VK4MWL-Remote-HF
    wfview

Satellites    [Home]

    Earth-Geometry
    Satellites

SDR-Software-Defined-Radio    [Home]

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    msiSDR
    piHPSDR
    Quisk
    RTL-SDR-Realtek-RTL2832u-Rafael-R820T2
    RTL-SDR
    SDRAngel-Docker-Build
    SDRSharp

Single-Board-Computers    [Home]

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        arduino-cli
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        Nano-V3.0-ATmega328P
        Serial-Programming
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        I2C-Bus
        SPI-Bus
    GPS-Programming
    Modbus-TCP
    Python-Programming
    Raspberry-Pi
        DS18B20-Temperature-Sensor
            DS18B20-Tremperature-Sensor
        HighPi-Fan
        My-RPis
            Macmini
            R01-barc-asl
            R02-hsd
            R03-asl-vk4pk
            R04-hd2
            R05-asl-vk4rba
            R06-RB-STM32
            R07-k3ng
            R08-venus
            R09-splat
            R10-touch
            R11-talwalpin
            R12-kowinka
            R13-hs4
            R14-Zero-W
            R15-RemoteHF
            R16-shari
            R17-TB7100
            R18-stm32
            R19-stm32
            R20-hs1
            R21-hs2
            R22-hs3
            R23-wspr
        OpenAuto
        Raspberry-Pi-Cluster
        RaspberryPi-Zero-W
        RPi-4-USB-C-PSU
        RPi-Android
        RPi-Fan-Controller
        RPi-SIM-Card-Module
    Short-Wave-Listening
    STM32-NUCLEO-F767ZI
    STM32-NUCLEO-H755ZI-Q
    Wemos-ESP8266

Slow-Scan-TV    [Home]

    Slow-Scan-TV

Test-Equipment    [Home]

    50-Ohm-HF-RF-Sampler
    Motorola-R2001D-Communications-Analyzer
        Motorola-2001D-Communications-Analyzer

Training-and-Presentations    [Home]

    00-Digital-Mobile-Radio
    00-Digital-Mobile-Radio
        10-Intro
            10-DV-Modes
                10-Amateur-Modes
            10-DV-Modes
            10-DV-Modes
                20-Commercial-Modes
                30-Mobile-Phones
        10-Intro
        10-Intro
            15-What-is-DMR
            20-Vobcoder
            30-DMR-Radios
            40-DMR-History
            50-DMR-Servers
                10-DMR-Repeaters
                20-DMR-Reflector
                30-DMR-Masters
            50-DMR-Servers
        20-VKDMR
            10-VKDMR
            20-DMR-Radios
                10-DMR-Radios
            20-DMR-Radios
        20-VKDMR
        20-VKDMR
            30-RadioID
            40-Network-Access
        30-Code-Plugs
        40-Station-Setup
            10-Firmware-RT3S
            20-RT3S-Codeplug
            30-RT3S-CPS-Exercise
        40-Station-Setup
        50-MMDVM
        60-Operating-DMR
        70-Future-DMR
        80-BARC-DMR
        90-Tutorials
            10-Digital-Future
            20-Editing-the-RT3S-Codeplug
            30-Editing-a-Codeplug-with-OpenRTX
            40-Install-Pi-Star
        90-Tutorials
        menu

Vector-Network-Analysers    [Home]

    miniVNA-Tiny
    Nano-Saver
    NanoVNA
    Smith-Charts

VLF    [Home]

    VLF

VOIP-Telephones    [Home]

    hard-phones
        Polycom-VVX500
    Providers
        Extended-Freedom
        Hamshack-Hotline
        HamsOverIP
    soft-phones
        thelinkbox

WSPR-Weak-Signal-Propagation-Reporter    [Home]

    International-WSPR-Beacon-Project
    kchilton-WSPR-TX-Config
    Serial-Communication
    VK4PK-Whispering-Pi-v2
    VK4PK-WSPR-RX-Site
    VK4PK-WSPR-TX-Site
    VK7JJ-web-pages
    WSPR-QRPi-HA7DCD
    wspr
    Zachtek-API
    Zachtek-Interface-App
    ZachTek-WSPR-Transmitter
    Zachtek-WSPR-TX-XP-Plus
    Zachtek-WSPR-TX_XP