Specifications

INPUT/OUTPUT— ELECTRICAL CHARACTERISTICS

Audio Input—20 millivolts to 3 volts; 600 ohm impedance.

Audio Output—0 to 3 voits adjustable; 600 ohm impedance.

Video Output—Standard TV video signal 1.4 volts p-p white positive into 75
ohms. compatible with standard S25 line CCTV monitor (625 lines in 50 Hz
countries).

TTY Loop Keyer Output—Transistor switched current loop keyer.

CW Keyer Output—Transistor switched to round for cathode or grid-block keying.
PTT Output-PTT line switched to ground during transmit.

Scope Outputs—Separate discriminator outputs for osciltascope monitoring.

INPUT/ OUTPUT— SIGNAL CHARACTERISTICS

Baudot—7.5 unit code (1 start. 5 data. 1.5
stop) A-Z,0 to9,!" = $&°Q-: BELL: .7/:
CR. LF, LTRS. FIGS, SPEEDS: 60. 66. 75. 100.
132 WPM.

ASCII—110 Baud, 11 unit code (1 start. 8 data, 2
stop) A-Z Upper and Lower case, 0-9,!"° = $%
"O° =-°@BELL+:0<>.77.
Morse—International Morse Code. A-Z. 0 to 9,
+. @::- 7, AR, AS, BT, KN, SK.

SSTV Output—Crystal controlled SSTV Audio—
FM 1200 Hz Sync, 1500 Hz Black. 2300 Hz
White, 3.0 voits p-p (adjustable) into 600 ohm
load. Horizontal sync 6 ms.. vertical sync 66

ms.

Notice: The Model 800 does not receive SSTV
pictures. An SSTV Scan Converter such
as the Robot Model 400 is required for
this purpose.

TRANSMIT MODES

BAUDOT. MORSE, ASCII

Continuous—Transmits each character as it is

entered on the keyboard.

Word—Transmits whole word when space bar

is depressed.

Line—Transmits entire line when complete.

Editing—Delete key causes backspace and

erases previous character.

Tune—Locks CW Keyer Output for transmitter

tuning.

Transmit Text Buffer—2SS characters.

Automatic CR, LF—Prevents splitting of words

at the end of each line (not used in Morse

Mode).

SSTV

Display—Real time display of transmitted

text. 36 or 18 characters (6 lines of 6 charac-

ters or 3 lines of 6 characters).

Cursors—"“Winking” cursor indicates the next

character position. Line cursor indicates which

portion of the display is being transmitted.

Editing—Cursor controls include up. down,

left. right and home to top of screen. CLEAR