home *** CD-ROM | disk | FTP | other *** search
- Cat Scan Version 3.0
-
- Computer control for the Yaesu FT890 transceiver
-
- Copyright (C)1995-7, Brian E. Cauchi, 9H1JS. All rights reserved.
-
-
-
- CONTENTS
- 1. Introduction
- 2. Station database
- 3. Advanced scanning facilities
- 4. Short-cuts
- 5. Command line interface
- 6. CAT interface schematic
- 7. Conditions for use
- 8. Contact information
-
-
- 1. INTRODUCTION
-
- CatScan provides computer control for the Yaesu FT890 (and similar)
- transceivers. It complements the facilities found on the radio, and adapts the
- radio better to a radio facsimile monitoring environment.
-
- It provides a simple way to use a Station database, and to browse the bands
- selectively.
-
- It has Advanced scanning facilities, to help you find the best signal on the
- bands.
-
- It has Short-cuts to otherwise awkward functions, such as Direct frequency
- key-in, Write memories to radio and Side-band/filter toggle.
-
- It has a Command line interface so that scripts can be used to control the
- radio from within other programs.
-
-
- 2. STATION DATABASE
-
- The station database is a text file, containing a list of records. Each
- record consists of fixed length fields. Only the Frequency, Callsign and Flags
- fields are of significance to CatScan. Additional fields (UTC, Service,
- LPM/IOC) are provided for descriptive purposes.
-
- The Frequency field contains the carrier frequency in kHz. The Callsign
- field, containing the callsign, is used to select records when the Call-query
- filter is set.
-
- The Flags field contains one or more characters indicating the type(s) of
- service. It is used to select records when the Flags-query filter is set.
- Specific flags are of special significance to CatScan.
-
- The F flag denotes that the service is Facsimile, and the appropriate 1.9kHz
- offset is applied to the operating frequency when in single side-band mode.
-
- The * flag denotes that the record is Marked. Unlike other flags, which are
- fixed, it may be set manually by pressing *. It is also set automatically by
- the Scan and Mark function.
-
-
- 3. ADVANCED SCANNING FACILITIES
-
- For best results, it is recommended that AGC is set to Fast, and the RF gain
- control is set fully clockwise, when scanning facilites are utilised.
-
- Memory Scan
- 1. Scans active database records.
- 2. Scanning stops when the S-reading reaches the set S-level.
- 3. May be used to log signal activity continuously to the file 'catscan.log'.
-
- Limit Scanning
- 1. Scans a band of frequencies continuously. Scanning stops when the S-reading
- reaches the set S-level, and commences after 5 seconds without signal.
- 2. Ideal for scanning AM broadcast bands and CB channels.
- 3. Channels may be browsed manually by using the Left/right arrow keys.
-
- Sweep Scan
- 1. Scans the band 0.1-30MHz and logs signal readings at 100kHz intervals, to
- the file æsweep.logÆ.
-
- Get Best Signal
- 1. Scans all active database records
- 2. Updates the memory channels of the radio.
- 3. Optionally marks records whose S-reading reaches the set S-level.
- 4. Selects strongest signal
-
-
- 4. SHORT-CUTS
-
- Direct frequency key-in
- Simply type in the frequency on your computer keyboard, and press Enter. Any
- numeric key press triggers this function automatically.
-
- Write memories to radio
- Active database records (up to a maximum of 32) are written to each memory
- channel. Both the front and rear location of each memory are updated, however,
- the rear memory is loaded with an alternate mode that would be most
- appropriate. Unused memories are cleared.
-
- Toggle side-band/filter
- This function toggles LSB/USB, CW/CW-Narrow and AM/AM-Narrow. If in LSB/USB
- mode, the appropriate 1.9kHz offset is applied to the operating frequency if
- the F flag is set.
-
-
- 5. COMMAND LINE INTERFACE
-
- CatScan S[weep]
- This is the command line equivalent of the Sweep Scan function.
-
- CatScan <Callsign> <Mode> [Flags]
- This is the command line equivalent of the Get Best Signal function. It allows
- the user to apply a query on callsign and flags, and to set the operating mode.
- The default log file is updated.
-
- CatScan <Freq kHz> <Mode> [Fax]
- This allows the user to set the frequency and operating mode directly. The
- default log file is updated.
-
- Remarks
- An asterisk in <Callsign> matches all callsigns.
- <Mode> is one of LSB, USB, CW, AM, FM
- An asterisk in [Flags] selects records marked in a previous session.
- The [Fax] flag applies the appropriate single side-band shift (±1.9kHz)
-
-
- 6. CAT INTERFACE SCHEMATIC
-
- <catscan.tif>
-
- This circuit uses a few, readily available, low cost parts. It is phantom
- powered, drawing current from the computerÆs RS-232 port.
-
- Pin numbers shown apply to the Yaesu FT890, and may be different for other
- models.
-
- It is strongly recommended to use screened cables.
-
-
- 7. CONDITIONS FOR USE
-
- This program is licensed for noncommercial use only. It may be copied
- and used by anyone as long as it is distributed in whole and without profit.
- The collection of files on the distribution disk must be distributed in an
- unmodified form. Unlicensed commercial distribution is prohibited.
-
- The author provides absolutely no warranty. The program is supplied "as
- is", and you may use it at your own risk. In no event will the author be liable
- for any damages arising out of the use of this program.
-
- Bug reports, suggestions and feedback are welcome. For contact
- information, see below.
-
-
- 8. CONTACT INFORMATION
-
- Postal address: Brian E. Cauchi,
- Gawhra, Domenico Cachia Street,
- Birkirkara BKR06, MALTA.
-
- Email address: briane@geocities.com
- Web page: http://www.geocities.com/SiliconValley/2504
-
-
-
- Cat Scan for the Yaesu FT890 - User's manual - End of file
-
-
-
-