Enter Prepared Message


Most of the prepared messages are obvious to amateur radio operators. The operator's choice, (G or H), are whatever was input by the user with the BASIC loader program. The three input message options (V/W, X/Y and 1/2) allow the user to inpiit a message with the first letter (V, X or 1) and to transmit by pressing W, Y or 2. Normally V is used to input the call letters and handle of the station being worked, and W to transmit this message. Pressing K automatically sends the I.D.

message, plus DE your call letters in fifteen-word per minute Morse code. This satisfies the FCC requirement that each teletype station identify itself once every ten minutes in Morse.

The CLEAR/EDIT HI-MEM function allows the operator to edit the received message, or to input and edit a HI-MEM message. Edit commands are just like those in Electric Pencil. Pressing 3 clears HI-MEM, 4 gives edit instructions, and 5 goes directly to the edit mode. The HI-MEM message is transmitted by pressing the numeral 6. Upon returning to the transmit mode (and each time from RECEIVE MODE), the program automatically advises the number of HI-MEM bytes remaining on the video display.

Model I and Model III Compatibility

This program includes its own object code keyboard decoding routines. As such, program operation is identical for both the Model I and Model III TRS-80. The only major difference between the Model I and Model III are the ROM CALLs. CAIiLs to 28A7H in the Model I are now CALL 021BH in the Model III with 03 delimiter.

Richcraft has intentionally not used memory locations 20936 through 28999 to allow for future growth. Options currently planned for this area in memory include automatic, unattended MSO (message storage operation) and remote tuning and/or control of the ICOM series of transceivers, including the models 730 (HF bands), 551 (6 meter band), 251A (2 meter band), and 451 (3/4 meter band).

You must have a Model I or Model III with 48K memory, a port zero encoder/decoder such as the Telesis VAR/80, and a teletype terminal such as the Flesher TU-170. Obviously, an amateur receiver and transmitter is also required. If 425 and/or 850 cycle frequency shift keying is desired, HAL Communications terminal units are recommended.

This is an excellent book and program. For the time being it is not available in 16K, though Richcraft is considering a version for release next year. This cassette version, if it comes to pass, will be produced by Richcraft's West German licensee, 'The Ingenieurb├╝ro fur Datentechnik' in Leverkusen, F.R.G., who now translate and publish the German language editions of Volumes, one through five of The Disassembled Handbook for TRS-80. M

Ed. note: The handbook is available from Richcraft Engineering, Ltd., Drawer 1065, Chataugua, NY 14722, for $20 or $49 with disk postpaid.

TRS-80 Models I & III


DANCE $100.00

Build a computer business out of your own home! This program matches people attending a local school or social dance based upon statistical analysis of their answers to a questionairre. Prints tickets to the dance with matches printed on them. Recover the price of the program in just one dance!

CHECK $75.00

Keeps track of your disbursements. Stores a Check Number, Date, Payee, Amount, and Code Number for up to 2600 checks.

0 0

Post a comment