Tektronix 1705A, Instruction Manual

Page: 54 / 223

Operating Instructions
1705A Spectrum Monitor
2- 15
.
SPECTRUM
DISPLAY
READOUT MODE
ON
OFF
L-BAND
OFFSET
L.O. HIGH
>EXIT
USE SPAN KEYS TO MOVE CURSOR,
PRESS INPUT KEY TO SELECT.
MAIN MENU
READOUT MODE
READOUT POSITION
TEST
>EXIT
USE SPAN KEYS TO MOVE CURSOR,
PRESS INPUT KEY TO SELECT.
READOUT POSITION
OFFSET ADJUST
TEST
MEMORY
DAC
LED
KEY
>EXIT
USE SPAN KEYS TO MOVE CURSOR,
PRESS INPUT KEY TO SELECT.
DOWN
UP
EXIT/SAVE
[<SPAN]
[SPAN>]
[INPUT]
UP
DOWN
LEFT
RIGHT
EXIT/SAVE
[RES]
[VIDEO]
[<SPAN]
[SPAN>]
[INPUT]
SPAN/DIV
Figure 2-10: Using the 1705A menus. Main menu is entered from the spectrum display by pressing both SPAN/DIV
buttons simultaneously
NOTE
. The 1705A must be returned to the normal operating routine before the
front-panel push-button switches perform the label functions. Push the INPUT
push button as many times as required to bring up the spectrum analyzer display.
The 1705A readout normally displays the frequency of the L--Band or 70 MHz
input signal. The L--Band input is a downconverted signal between 900 to
2000 MHz, which by itself does not return meaningful information. Because of
this it may be easier to display the readout that corresponds to the actual satellite
Changing Readout
Frequency