TH-D72A/E - N3UJJ

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2 HOW YOU ENJOY APRS WITH TH-D72A/E (WRITTEN BY BOB BRUNINGA, WB4APR)Although the information appears a bit cryptic, the fact that all voice repeater objects use this samestandard format makes it easy for the operator to understand the meaning. In this case, the localrecommended voice repeater in this area is the 147.105 (Maryland) repeater with a Tone of 107.2 Hz.The range is 25 miles and the weekly net time is Tuesday evenings at 8 p.m. The final 8 characters(for backwards compatibility to TM-D700A/E) announce that the club meetings are on the 3 rdThursday of every month. Again, a press of the “MENU” button and then selecting TUNE willinstantly take the radio to this channel. For full details on this function, refer to the following website:http://aprs.org/localinfo.html10 CONTENTS TH-D72A/EFrom The N3UJJ.COM Document Library
2 HOW YOU ENJOY APRS WITH TH-D72A/E (WRITTEN BY BOB BRUNINGA, WB4APR)HamfestsAnother very typical object that everyone loves to see is the HAMFEST object. This bright red APRSsymbol stands out smartly on any APRS display including the AvMap GPS display as shown above.At first glance, this object tells you the most important information: Where it is, and when. TheHFEST-DDn standardized object name includes the DATE in the DD digits. Only the day is shown(here it is on the 26th), but this allows for 2 weeks notice to everyone in the area and anyone drivingthrough. The final character “n” is chosen to make the symbol unique in the global APRS system.This makes for easy sorting of these objects. Simply go to http://aprs.fi/hfest* and see a list of allactive hamfests the world over!. The talk-in frequency is also listed for instant QSY with theTH-D72A/E TUNE function. I was on a cross-country trip one day on a weekend and just happenedto see one of these objects and was able to detour and spend an hour or two at this favorite hamradio pastime.To see how to beacon your local hamfest, refer to the following website: http://aprs.org/hamfest.htmlVoice over Internet Protocol (VoIP)Recognizing the huge potential for linking local ham radio over Internet, an added goal of APRSsince 2001 has been to facilitate the use of IRLP, EchoLink, and other VoIP systems. Just like theFrequency Objects, all ham radio VoIP systems are encouraged to announce their presence onAPRS. Within 10 minutes the node number, frequency, tone and other info are available to all APRSoperators on their radios as shown above. Again, a simple press of the TUNE function will QSY theradio for instant operation. The long-term goal of this VoIP and Frequency capability has been toenable APRS to be used for setting up end-to-end global voice contacts. Simply entering a callsignin a contact-request message will cause the APRS Internet system to handshake with the VoIPsystems to set up the call and send the necessary QSY messages and frequency information for theradio to instantly tune and complete the call. Think of it as a cellular system for ham radio where youdial by callsign instead of phone number. Both TM-D710A/E and TH-D72A/E were designed to beevolved with this capability!TH-D72A/E CONTENTS 11From The N3UJJ.COM Document Library
Page 1 and 2: TH-D72A/EFrom The N3UJJ.COM Documen
Page 3 and 4: About Registered Trademark• Windo
Page 5 and 6: CONTENTS1 DEVELOPMENT CONCEPT .....
Page 7 and 8: PROLOGUEAmateurs Building the New G
Page 9 and 10: 1 DEVELOPMENT CONCEPTFollowing is t
Page 11 and 12: 1 DEVELOPMENT CONCEPT1.3 Other New
Page 13 and 14: 2 HOW YOU ENJOY APRS WITH TH-D72A/E
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Page 23 and 24: 3 PREPARATIONS FOR OPERATING APRS3.
Page 33 and 34: 4 GPS4.1.2 Datum (Geodetic Survey S
Page 35 and 36: 4 GPS4.2.4 Settings for Geodetic Su
Page 37 and 38: “Time, Altitude, Travel direction
Page 39 and 40: 4 GPS4.3.5 Internal GPS Unit SaveIf
Page 41 and 42: 4 GPSPressing the [TNC] key again i
Page 43 and 44: 4 GPS4.3.9 Mark WaypointYou can reg
Page 45 and 46: 5 APRS SOFTWARE FOR YOUR PC5.1 UI-V
Page 47 and 48: 5 APRS SOFTWARE FOR YOUR PCFigure 5
Page 49 and 50: 6 OPERATIONAL EXAMPLES OF APRSWhile
Page 51 and 52: 6 OPERATIONAL EXAMPLES OF APRS6.1.4
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Page 61 and 62: 7 APRS NETWORKS7.1 APRS ServersIn t
Page 63 and 64: 7 APRS NETWORKS7.3 Let’s Send Ema
Page 65 and 66: 7 APRS NETWORKS7.4 Digipeaters (Dig
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7 APRS NETWORKSthe same time also h
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7 APRS NETWORKS7.5.3 STATE/ SECTION
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8 MCP-4A MEMORY CONTROL PROGRAM (FO
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8.3 Reading a FileThis section desc
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9 HOW TO UPDATE FIRMWARE9.3 How to
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10 MISCELLANEOUS TOPICS10.1 AvMap (
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11 APPENDIXRevision HistoryRevision
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We would like to extend our sincere
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