HP 8340A Operating Manual page 56

SHIFT, FREERUN
Starts display self test.
SHIFT, M5
Cancels diagnostic functions.
INSTRUMENT PRESET
Restores standard conditions.
To get the desired CW frequency, press � : � };_ , \ ; · � , then
use the numeric keypad to enter your desired CW
frequency, followed by the frequency unit (GHz,
MHz). The frequency units (GHz, MHz, l<Hz, Hz)
are on keys located to the right of the numeric keys.
Try this example:
Check the ENTRY DISPLAY in the upper right hand
corner of the instrument, and the left FREQUENCY
MHz display, which will both show
345.123456 MHz (the ENTRY DISPLAY always
shows the most recently changed function, which
in this case is the CW frequency). Notice that this
microwave signal has a resolution at the Hz level!
Try other CW frequencies in the
GHz range. As you will see below, the CW fre­
quency can be 11tweaked11 by using the
and the but first save this CW configura­
tion for future recall. Press
this CW instrument configuration in memory regis­
ter
1.
KNOB, STEP keys
function.
ENTRY DISPLAY shows
active function.
KNOB sensitivity:
1. Press SH I FT, CW.
2. Use CW RES kBys to change sensi­
tivity.
3. Press CW to return to CW mode.
STEP KEYS, KNOB
The
that
DISPLAY window. When you were entering CW fre­
quencies in the last example, your keystrokes were
being displayed in the ENTRY DISPLAY window
and you could have used the
to control the CW frequency as well.
For example, enter the following:
CW: 12
The ENTRY DISPLAY will show this value in MHz.
Now alternately press the up-arrow an . d down­
arrow
10 MHz to 26.5
change in the ENTRY DISPLAY window. Press and
hold one of the
keys
, then to save
Next, alternately rotate the
counter-clockwise while watching the changing CW
frequency in the ENTRY DISPLAY. The
4
Scans by HB9HCA and HB9FSX
STEP KEY sensitivity:
1. Press SHIFT,CF.
2. Enter value,
control active
3. s�lect frequency unit.
4. Press CW to return to CW mode.
CW Operation:
1. Press CW.
2_ Enter value.
3_ Select frequency unit.
keys and the
currently being displayed in the ENTRY
keys while watching the frequency
keys for a repeat action.
affect the function
keys or
. .,_ . '/:\
clockwise and
f· . ff,:,')\.i:
is