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DIGIPEAT

The quarterly journal of the Australian Amateur Packet Radio Association

Each quarterly issue of Digipeat contains details of AAPRA supported Digipeaters, a list of active ROSE switches and a list of current AAPRA members together with their QTH, Home BBS and ROSE switch number.


The editor always welcomes submission of articles, tidbits and network updates for publication.
Email the editor and see your name in print!
Our regular correspondent Aunt Harriet may also be contacted.

Contents of DIGIPEAT issues 52 to 65

Oct-Dec 97 | Jan-Mar 98 | Apr-Jun 98 | Jul-Sep 98 | Oct-Dec 98 | Jan-Mar 99 | Apr-Jun 99 |
Jul-Sep 99 | Oct-Dec 99 | Jan-Mar 00 | Apr-Jun 00 | Jul-Sep 00 | Oct-Dec 00 | Jan-Mar 01

Back issues of DIGIPEAT are available from AAPRA - even issues that are not listed here.
Price per issue: $5 including postage. Contact the Secretary.

January - March 2001

NOTICE OF SIXTEENTH ANNUAL GENERAL MEETING OF AAPRA

   Treasurer's Report
   President's Report

IN THE ROSE GARDEN

   Why is Packet thriving and evolving in Germany when it seems to be doing the reverse in Australia?

SOFTWARE LIBRARY UPDATE

   Spectrogram, a dual channel audio spectrum analyser has been added to the shareware library and the AAPRA CD-ROM. Updates to several other programs.

TAPR PRESIDENT'S OZ VISIT

   John Ackermann's positive comments about VK amateurs after his visit to Australia.

CLOVER II

   Details of another new digital mode.

WYONG 2000 Photo Gallery.

   Six photos of the AAPRA stand members, including VK2DP receiving his YAM modem prize.

DIGITAL RADIO IN THE NEW MILLENNIUM

   A thought provoking article by John Ackermann President of TAPR. The changes that computers have made and will continue to make in Amateur Radio.

PADDING AROUND

   The International Space Station
   APRS on the cheap
   APRS "LIVE" on the net
   High speed packet on 2.45 GHz.

AUNT HARRIET

   Aunty has had a touch of the vapours but should be back on deck next issue.

October - December 2000

IN THE ROSE GARDEN

   Why packet networks grow in some countries and shrink in others.

SOFTWARE LIBRARY UPDATE

   New shareware includes AirMail, Stream together with updates for several other programs and Introduction to Packet Radio by WB9LOZ..

COMPUTER SEX

   By which gender should computers be addressed?

MFJ1270B HEARING AID

   JMP-J link setting may affect the reliability of connections with the MFJ1270B TNC.

MFSK DX MODE

   A new weak signal DX mode for Radio Amateurs using a PC, Sound Card and STREAM shareware.

AUNT HARRIET

   Getting really comfortable with Packet procedures before going "live" On-Air.

July - September 2000

IN THE ROSE GARDEN

   Chopped 70 cm band requires changes to link transmitters & receivers.

SOFTWARE LIBRARY UPDATE

   New shareware includes IrfanView32, PureVoice Converter and T4, a DOS terminal program together with updates for several other programs.

AAPRA CD-ROM

   Introducing the NEW AAPRA Shareware CD-ROM which contains the complete collection of shareware and then some.

BLAKPAK BLAKWEEK

   A cautionary tale about DB9/DB25 adaptors when used for BlakPak style modems.

LARGE-SCALE PACKET RADIO NETWORKING

   Why we need large-scale networks and how to get them!

AUNT HARRIET

   Sending and receiving SPEECH packets using Pure Voice.

NEL Continuity & Coil TESTER

   A simple continuity tester that won't destroy sensitive components.

April - June 2000

IN THE ROSE GARDEN

   Something stirring in Tamworth. FPAC Rose Directory.

SOFTWARE LIBRARY UPDATE

   New Shareware includes Digipan, Radio Mirror, UI View, & World Time Clock together with updates for several other programs.

Flexnet for Remote Nodes

   Although dealing with the installation of a Flexnet Node much is equally applicable to FPAC/ROSE Nodes.

Future of the Amateur Service

   Extracts from a speech by Dale Hatfield (W0IFO) regarding the potential for Software Defined Radios to bring about a new era of amateur experimentation.

AUNT HARRIET

   Aunty continues her investigation of Cousin Hortense's problems trying to use Winpack and Packet Engine with a BayCom style modem.

January - March 2000

NOTICE OF FIFTEENTH ANNUAL GENERAL MEETING OF AAPRA

   President's Report
   Treasurer's Report

IN THE ROSE GARDEN

   A sad tale of the pitfalls in making replacement RS232 cables.

SOFTWARE LIBRARY UPDATE

   One new item in the library, JVCOMM32 1.00 and 7 updates reviewed.

THE NEED FOR SPEED

   An interesting approach to packet bulletin distribution incorporating HTML without the need for higher speeds.

DIGITAL DICHOTOMY

   Why is it "OK" to use the telephone network for Amateur Packet messages but NOT 'OK" for voice contacts?

AUNT HARRIET

   Aunty's cousin, Hortense has some fun trying to install some software she picked up at Wyong.

October - December 1999

IN THE ROSE GARDEN

   As BBSs are the largest users of the Network should they set it up and maintain it? Are HF links the answer?

EMPOWER YOUR FM92

   Review of the excellent UDM900 firmware EPROM replacement for the Philips FM92 VHF Transceiver.

WICEN OPERATIONS ON PACKET

   What part can packet play in emergency communications?

SOFTWARE LIBRARY UPDATE

   11 updates of the AAPRA Shareware Library detailed.

CLEANING UP THE MFJ 1270B

   Investigation of the electromagnetic radiation from the MFJ1270B and how to reduce it.

THE NEW YAM MULTISPEED MODEM

   Details on the NEW AAPRA 9600bd modem - it's history, features and functional description.

ALIGNMENT OF THE MFJ1270B & 1274

   A full procedure for this popular TNC.

AUNT HARRIET

   The UPS and DOWNS of Packet Radio.

July - September 1999

IN THE ROSE GARDEN

   Several interesting photographs showing the "inside" of VK2RNS.

SOFTWARE LIBRARY UPDATE

   Update information for 7 shareware programs.

Packet Radio Goes Bush

   VK2KFA describes the portable packet equipment he uses on WICEN activities.

Setting Your TNC's Audio Drive Level

   A detailed article on the WHY and the HOW to setting up your TNC's audio drive level accurately. In some cases this can almost double the range of you packet station.

AUNT HARRIET

   Aunty muses on where packet has been and where it's going.

April - June 1999

IN THE ROSE GARDEN

   Barry is looking for some PC monitors which will fit a 19 inch rack to tidy up the VK2RNS installation. VK2RNS now has the potential for 8 ports running FPAC Rose.

SOFTWARE LIBRARY UPDATE

   One new title and four updates this issue.

HELLSCHREIBER

   A detailed description of this fascinating digital mode by ZL1BPU. An "Old" mode becomes easy to implement thanks to the modern PC.

AAPRA MEMBERSHIP DATABASE

   Tables showing where AAPRA member are, which computer, TNC and software they use.

HIGH SPEED DATA ON POWER LINES

   Using the electricity power lines for internet connection. Can it happen here and how will it affect amateurs.

AUNT HARRIET

   Aunty untangles her TNC!

WHAT'S THIS MFJ

   Geoff's experiences "fine tuning" an MFJ-1270B

January - March 1999

IN THE ROSE GARDEN

    Suggestions for BBS traffic frequencies

NOTICE OF ANNUAL GENERAL MEETING

    The AAPRA AGM will be held at 11AM on Sunday, 2nd May 1999 at 59 Westbrook Avenue, Wahroonga, NSW
    AAPRA Income and Expenditure Statement
    President's Report
    Treasurer's Report

Software Library Update

WYONG 1999 Photo Page

BAYCOM/PENTIUM PROBLEM

    Another possible reason and solution

TWIN SPEED 1200/9600 OPERATION WITH ONE RADIO

    Gerard describes his dual speed setup which has been running for 6 years

MFJ TNCs

    Details on MFJ TNCs available from AAPRA

PSK31

    Information on the new digital mode which is spreading like wildfire on the HF bands

Aunt Harriet

    Aunty discusses some odd PMS problems

October - December 1998

IN THE ROSE GARDEN

    The problems that befall ROSE switches

The NEW AAPRA Web Site

    Launch of AAPRA web page
    URL, navigation, contents and use
    Site history and development
    e-mailing AAPRA committee members
    Future developments

PACKET PERCEPTIONS

    VK2BQ comments on the AAPRA website, BBSs and packet versus the Internet

TELETEXT

    Is there a silent revolution on your local BBS ?

Software Library Update

    New Titles
   [PicturePacket 1.12](Win95/NT) 2/12/98 by KW7KW

Twas the Night Before Christmas

    Christmas theme PC Version

Aunt Harriet

    Vintage packet programs hit problems on Pentium PCs?

BlakPak mod

    Simple mod improves sensitivity

July - September 1998

In the ROSE Garden.

    ROSE switches and FPAC

VK2XVW Weather Station

NEW BLAKPAK 1200bd MODEM

    USING A BayCom MODEM WITH WINDOWS 95
    WINTNC
    WinPack and Packet Engine

FM92 Revisited.

    More on the modification of this transceiver based on experience with several different models.
    Battery Back-up and a simpler mod for 9600Bd operation.

Possible TCM3105 replacement

Aunt Harriet

     Hints for Packet beginners.

April - June 1998

In the ROSE Garden

    Pactor Plot

AAPRA and Y2K

20th ANNIVERSARY OF AMATEUR PACKET RADIO

SOFTWARE LIBRARY UPDATE

    New Titles
    [APRS 8.17] (DOS) 10/6/98 by Bob Bruninga, WB4APR
    [WinAPRS 2.2.0] (Win) 15/5/98 by Mark and Keith Sproul
    [PC/FlexNet 3.3g] (DOS) by Gunter Jost, DK7WJ

A SIMPLE LITTLE TASK

    Problems with a 12V plug pak that wants to be a 12W transmitter !

HIGH SPEED PACKET WITH THE FM92

    Modifications to the FM92 for 9600Bd packet on 2 Metres
    Full adjustment and tuning details

Aunt Harriet

    The Internet and the future of Amateur Radio

January - March 1998

In the ROSE Garden

    Problems with a ROSE switch transmitter
    A novel UHF power meter used to track fault

Notice of AAPRA AGM

   President's Report
    Treasurer's Report

Shareware Library Update

No new titles but LOTS of updates

Beginners Corner

    Equipment
    Why call it Packet

The 1997 DCC in Baltimore

    Darryl VK2TDS reports on his visit to the Digital Communications Conference in USA and enthuses about APRS or the Automatic Position Reporting System

Aunt Harriet

    Mysterious Happenings with LCALLS

HAPN-T

    TNC200 Modifications

October - December 1997

In the ROSE Garden

    A progress report on the implementation of FPAC  in ROSE Switches

Software library update

    New Titles
        [Sally 1.07] (Win) 24/11/97 by Ted Harrison G8NPF
        [TstHWin 1.10] (Win95) 29/11/97 by Mario Travaglino IK1GKJ

What is Shareware?

Sydney ROSE Internet Gateway

AAPRA at the Wyong Field Day 1998

    The next Wyong Field Day will be different for AAPRA !

Beginners Corner

    Extracts from "An Introduction to Packet Radio"

Aunt Harriet

    PMS Commands.


Missing in Action

A regular feature in Digipeat is the list of equipment stolen from AAPRA supported Digipeaters.
It is repeated here in the hope that maybe you can help us trace these missing items.

YAESU UHF Transceiver Model FT712 Serial No. 8C050376
PHILIPS VHF Transceiver Model FM828 Serial No. 45459
PacComm Tiny2 TNC Serial No. T6782
PacComm Tiny2 TNC Serial No. T6784
PacComm Tiny2 TNC Serial No. T5359
POWER SUPPLY Serial No. FRY1501
PacComm DR200 TNC Serial No. 2231


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Last update to this page: 3/6/01