Download - Intro to d-star - katyars.com
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INTRO TO D-STAR Katy Amateur Radio Society Bill Pellerin, KE5XV
Hal Fuglaar, N5BXP
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DIGITAL (VOICE) RADIO (GENERALLY)
• D-Star –
• Developed for amateur radio
• Open standard
• DMR – developed for commercial communications
• DMR presentation March 13
• Inexpensive radios
• C4FM – Yaesu proprietary
• Installed base?
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D-STAR IS…
• Digital Smart Technologies for Amateur Radio
• Digital voice – encoder is in the radio
• D-Star is an open standard developed by the JARL
• Any manufacturer can build a D-Star radio
• Allows data transmission
• Allows position transmission compatible with APRS
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Much of what you already know about repeater use applies to D-Star
…but there are some things you need to learn to use D-Star
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WHAT YOU ALREADY KNOW
Two operators can
communicate with
each other directly
radio-to-radio.
Simplex.
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WHAT YOU ALREADY KNOW
Repeater
Two operators can
communicate
with each other
through a digital
repeater.
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D-STAR REPEATER CONNECTED TO A GATEWAY
Repeater Radio
Unit (RF)
Gateway
Computer
• All Signals are digital
• Gateway computer connects repeater radio to
internet
• …which opens up lots of new possibilities!
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REFLECTOR CONNECTS MULTIPLE REPEATERS
Repeater 1
Reflector (really a
computer
somewhere)
Repeater 2
Repeater 3
Internet
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REFLECTOR OPERATIONS
• It’s the repeater that’s connected to the reflector, not your radio
• Any repeater can connect to any reflector anywhere in the world
• Repeater operators allow users to link repeaters to any reflector (although they sometimes have a ‘default’ reflector)
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ID-51A PLUS SCREEN DISPLAY, OTHER RADIOS HAVE SIMILAR DISPLAYS
• Your signal is forwarded
to the reflector to which
the repeater is
connected
• If the repeater isn’t
connected to a
reflector, your
transmission remains
‘local’
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THE FOUR INFORMATION FIELDS UNDER THE COVERS
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THE UR/’TO’ FIELD
• Think of this as a command line field • (Out of the box setting)
• CQCQCQ – means ‘do nothing’; forward my transmission • I (letter I, 8th position) – means ‘tell me the status of the
repeater I’m using – is this repeater linked? Where?’ • E – Echo test PTT, talk, listen • U – Unlink the repeater from a reflector • REF004BL – link the repeater to reflector 004B • (Almost) never have a call sign in the UR field
• Specifies ‘call sign routing’ or ‘repeater node routing’ –usually BAD
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THE R1 (REPEATER 1) / ‘FROM’ FIELD
• (Out of the box setting)
• The call sign and module of the repeater you’re using
•W5HDR – this is the repeater at TranStar
•B – the B module (440 MHz) • The A module is 1.2 GHz • The C module is 144 MHz
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THE R2 /‘FROM’ FIELD
• (Out of the box setting)
• Specifies what happens with your transmission
• Blank – the repeater repeats your transmission (RF), but it’s not sent to the Internet and to any reflector that might be connected to this repeater.
• W5HDR G – your transmission is forwarded to the repeater’s gateway (i.e. to the Internet). This means it’s going to the reflector to which the repeater is connected.
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IF YOU BUY A ID-51A+ OR +2 TODAY
• It has local D-Star and analog repeaters programmed into the radio out-of-the-box
• It has a GPS receiver so it can determine which repeaters are near you!!
•You only need to know ONE thing
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YOUR CALL (AND, OPTIONALLY, YOUR NAME)
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YOU DON’T NEED TO KNOW
•CTCSS tones – not used for digital
•Repeater names, frequencies, offsets (they’re pre-programmed into the radio)
•Which repeaters are closest to you (the radio will tell you; also for analog)
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YOU MUST ENTER…
•Owner’s call sign and a 4 letter message (message is optional) –
usually your name or your radio type.
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HOW TO GET ON THE AIR
•Register your call – allows your transmissions to be forwarded on the Internet – easy and free.
•Houston area: [email protected]
•Only needs to be done ONE time ever
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RADIOS FOR D-STAR
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ID-51A, PLUS/ANNIVERSARY, PLUS 2
• 2 meter and 440
• Analog and D-Star
• 5 watts max
• Repeater list pre-installed
• GPS receiver allows ‘near me’
repeater selection
• Price: $339 for Plus
• Price: $469 for Plus 2
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OTHER RADIOS
• IC-7100 – HF + VHF/UHF + D-Star $919 ($100 rebate)
• IC-5100 – VHF/UHF mobile $519
• ID-4100 – Brand New – $460
• IC-9100 – HF + VHF/UHF (D-Star option) $2340
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ID-4100 – ANNOUNCED, JUST NOW AVAILABLE
• $460 – bracket extra
• Similar interface to ID-51, 5100, 7100
• Feature set similar to ID-51A Plus2 Handheld
• 50 Watts
• GPS option
• Bluetooth option
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KENWOOD THD-74A
• Triband (2m, 220 MHz, 440MHz)
• Color display
• D-Star and APRS support
• HF SSB/CW/AM receive
• Excellent audio
• $609
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NO RADIO NEEDED!!! You can get on D-Star without a radio. (Great for travelers.)
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EXTERNAL DIGITAL ENCODER
• DVDongle
• DV3k
• DV4Mini (AMBE)
USB Headset (Logitech et al)
USB
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DV-DONGLE / DV3K-DONGLE / DV4MINI AMBE
• Free software
•Access to any
reflector in the
world
• Less than $150
(DV3k)
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RADIO W/PERSONAL HOTSPOT
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HOT SPOTS
•Radio required
•Hotspot is a low power transceiver (personal repeater)
•Connects to a computer
•Provides access to the internet
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DVAP/DV4MINI – DIGITAL VOICE ACCESS POINT
• Free software
•2M or 440 Mhz
•DVAP Price $250
•DV4mini Price $129 (UHF) (no antenna)
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DVMEGA (TRANSCEIVER)
•Add-on boards for Arduino, Raspberry Pi, Bluestack
•Not for a Windows/Mac comp • ..except with a Bluestack
•Act like a DVAP
• Support D-Star and DMR, C4FM
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DVAP/DV4MINI/DVMEGA
• DVAP
• DV4mini
• DVMega
Antenna
WiFi
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DVAP/DV4MINI/DVMEGA
• DVAP
• DV4mini
• DVMega
Antenna
Raspberry Pi
WiFi
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DVAP/DV4MINI/DVMEGA
• DVAP
• DV4mini
• DVMega
Antenna
Raspberry Pi
WiFi
Cell Network
Phone
provides
WiFi
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DVMEGA
DVMega
Antenna
BlueStack
Bluetooth
or USB
Cell Network
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BLUEDV SOFTWARE (IOS)
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APRS.FI
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CENTRAL HOUSTON REPEATERS
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OTHER FUN THINGS TO DO…
•You can send photos from your Android device via D-Star
•You can send text messages via your Android device
• Slow speed access to the Internet
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RESOURCES
• “Houston Digital Radio” – Facebook group
• Documents – how to set up radios, links to web sites
• Meeting announcements –
• Conversations
• Programming files
• Digital Radio monthly meeting at Transtar (on Old Katy Road), 4th Monday, 7:00 p.m.
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RESOURCES
• DSTARINFO.com
• Conferences – videos from D-Star class at Dayton Hamvention
• Closest repeaters – zip code or city name
• Nets schedule – Texas D-Star Net Tuesday night, 8:00 p.m. (local) Reflector 4B
• Reflectors list – 235 reflectors world wide
• Downloads – programming files
• Much more
• DSTARUSERS.org
• REPEATERBOOK.com – filter by D-Star repeaters
• Yahoo Groups – DStar_Digital, DVAP Dongle, DV Dongle
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RESOURCES
• Software for programming your radio
• ICOM – free software (you need to buy or build a cable)
• Kenwood – free software provided by manufacturer
• RT-Systems – Purchase with cable, updates D-Star repeater lists
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QUESTIONS?
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DEMO – HAL – N5BXP