The Explorer 73 Amateur Radio Today August 1992

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Antenna Info.

W4RNL Antenna INFO. HF,VHF,Antenna Modeling Feedlines, Etc.

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Phil's old Radios

Homebrew RF AMP Info WB0NNI





Slow Scan TV Free(MMSSTV)



F.C.C. Part 97

Visit Star Downloader - The best download manager!

I have built the KK7UG Interface
Can be used with CW,RTTY,
SSTV,PSK31,etc.FB Homebrew
with detailed instructions.

Isolating Sound Card Inerface by KK7UG

Free Logging

XMLog Download


U.S A.Callsign Lookup
Using F.C.C. ULS
free Database.
Install Freeware
and download database
warning this is a 65MB
database make sure
you have Disk Space
May take up to 6Hrs on
a slow Dialup Connection:


HAMSCOPE Free Download

  • PSK31 (BPSK and QPSK,
  • RTTY
  • ASCII (both 7 bit and 8 bit protocols using MMTTY)
  • MFSK16
  • PACKET (HamScope uses George Rossopoulos'  Engine)
  • CW

SIMPLEX is a program which manages a simplex or duplex repeater. It requires Win95 or later, 16 Mb of RAM and a sound card.

In Simplex mode, the repeater uses the same receive and transmit frequency. It records and replays alternatly the received signals. This mode allows anybody who possesses a single transceiver to transform its station into a repeater. 
The station will be able to repeat packet frames without the need of a TNC.
Your friends will be able to perform modulation and decommutation testing through your station while your are doing some gardening. Any modulation may be recorded (SSB, FM, Packet, SSTV, PSK31 etc).
Friends who cannot access a duplex repeater will be able to contact some more correspondants through your station.

In Duplex mode, the program acts just like a classical duplex repeater or transponder with tone opening, chat timer, beacon message etc. The program may replace a hardware repeater logic. 
The duplex repeater mode requires separate receiver and transceiver working on different frequencies in the same band.
The duplex transponder mode requires two differents transceivers working on two different bands.
A more detailled description will be found in the chapters Simplex Mode, Duplex Repeater Mode and Duplex Transponder Mode.

Whatever the chosen mode, SIMPLEX is sensitive either to audio signals or radio signal to initiate the record process. A radio signal is for example a squelch DC signal sent by your transceiver which goes high when carrier is received by the receiver and resets low when the frequency is clear. In the later case, record will start on carrier detection just like a hardware repeater.
SIMPLEX may be used with CW, SSB, FM, SSTV or any other modulation mode.

SIMPLEX allows you also to play up to 11 different audio wave messages, 6 of which being looped if desired. This will provide an efficient help to contesters as a parrot.

It is an intelligent parrot.


Program overview

Main features of LogPa:

  • Making multiple logs for different calls. For example a main log for at home, dx-pedition logs, clubstation log, contest log.

  • Logging functions:

    • Entering QSO offline/online.
    • Checking the database for qso before. Giving all qso b4 with same callsign or all qso's with the same dxcc entity.
    • Give information about qso's b4 with dxcc entity on bands/modes.
    • Calculating direction for antenna short- and longpath and distance.
    • For Russian callsigns searching for Oblast/Republic name.
    • Support for 9 modes. CW, SSB, RTTY, FM, AM, AMTOR, SSTV, PACTOR, PSK31.
    • Support for Yaesu FT1000mp and Kenwood radio's.
    • Built-in QSL-manager database.
    • Easy searching of qslcards received from buro and set the qso to qsl rcvd.
    • Printing any size envelope labels for sending direct qslcards.
    • Printing graphical qso rate for a period of 24 hours.
    • Internet browser for Dx summit dxcluster on the internet.
    • Dxcluster support thru packet radio by a tnc or thru internet by telnet. All spot will be put in a filtered list and matched against the database for mode/band needs of particular dxcc entity
    • Backup of database files.
    • Direct printing of labels/qslcards from within the program.

  • Export/import facilities:

    • Export to ADIF format.
    • Export to text file.
    • Exporting qso info for QSL cards into an ADIF or text file.
    • Import from ADIF format.
    • Import from Cabrillo format.
    • Import from Tr-Log contest logger.
    • Import any logpa database.

  • Report facilities:

    • Reporting how many dxcc entities you have per band and per mode.
    • Reporting how many usa states you have per band and per mode.
    • Reporting how many canada province. you have per band and per mode.
    • Reporting how many zones you have per band.
    • Make reports of contacts in the log. depending on date/band/mode/zone/qslrcvd/qslsent/qslmgr/dxcc entity.
    • List of worked clubmembers (hsc and agcw member list added). Easy to self extend.
    • Qslcard reports for keeping track of needed cards from certain dxcc entities.
    • Reports a list of all dxcc entities with worked/confirmed per band.

  • Callbook cd:

    • RAC CD-ROM (Flying horse).
    • QRZ CD-ROM.

  • Encode and decode Psk31 signals. Thanks to Moe Wheatley AE4JY PSKCore.dll

  • A database where you can store your QSL-managers info.

    • Import of comma seperated text files are possible.

  • No help file, sorry.






This mix of fun, public service, friendship and convenience is the main feature of amateur radio. The "ham" part of ham radio is really a shortcut way of saying just the first syllable of amateur radio. Hams start out in amateur radio for many reasons, but they all have in common a basic knowledge of radio technology, regulations and operating principles. They get this knowledge by studying for licensing exams -- hams have licenses (after passing an exam) from the Federal Communications Commission (FCC) and use frequency bands assigned by the FCC.


"Ham: a poor operator. A 'plug.'"

That's the definition of the word given in G. M. Dodge's "The Telegraph Instructor" even before radio. The definition has never changed in wire telegraphy. The first wireless operators were landline telegraphers who left their offices to go to sea or to man the coastal stations. They brought with them their language and much of the tradition of their older profession.

In those early days, every station occupied the same wavelength-or, more accurately perhaps, every station occupied the whole spectrum with its broad spark signal. Government stations, ships, coastal stations and the increasingly numerous amateur operators all competed for time and signal supremacy in each other's receivers. Many of the amateur stations were very powerful. Two amateurs, working each other across town, could effectively jam all the other operations in the area. Frustrated commercial operators would refer to the ham radio interference by calling them "hams."

Amateurs, possibly unfamiliar with the real meaning of the term, picked it up and applied it to themselves in true "Yankee Doodle" fashion and wore it with pride. As the years advanced, the original meaning has completely disappeared.



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