Tektronix RFM150, Инструкция по эксплуатации, Страница: 49 / 278

Functional Overview
RFM 150 Instruction Manual 2–3
3. CHAN switches the instrument to channel entry mode. If CHAN
is used to terminate a keypad entry, it will switch the instrument
to the channel entry mode and tune the instrument to the keyed
channel.
4. MHz switches the instrument to frequency entry mode. If MHz is
used to terminate a keypad entry, it will switch the instrument to
frequency entry mode and tune the instrument to the keyed
frequency.
5. During a keypad entry, the backspace key will erase the character
preceding the cursor. A pending keypad entry can be aborted by
back spacing 1 click beyond an empty entry.
6. ENTER is used to terminate a keypad entry in channel or
frequency mode.
7. Keys F1 through F5 are referred to as function keys or soft keys
because their functions vary, based on the instrument operating
mode. In this manual, they are also referred to as F keys. Key
assignments are displayed along the bottom of the LCD screen.
Pressing one of the F keys will abort a keypad entry in progress.
8. The knob function varies, based on the selected instrument mode.
Knob functions include channel tuning, frequency tuning, speaker
volume, reference level, and span. In some modes, the knob
chooses among several items displayed on screen. In modes that
allow text string entry, the knob selects letters from a displayed
alphabet. ENTER must be pressed after each letter. The knob
overrides a partial keypad entry.
9. In meter mode, the speaker is automatically turned on to monitor
FM audio. To control the speaker volume in meter mode, select
the function key assigned to KNOB VOL and turn the knob. The
speaker also provides a warning for error conditions.
10. There are 10 menu keys, which provide access to on-screen
menus and submenus. Selecting any menu key will abort a
keypad entry in progress. The following is a general description
of menu functions:
H
LEVEL accesses the signal level measurements submenu. In
LEVEL mode, the five function keys are assigned to:
1 CHAN, PILOTS, 5 CHAN, ALL CHAN, and METER.
Functional Overview
RFM 150 Instruction Manual 2–3
3. CHAN switches the instrument to channel entry mode. If CHAN
is used to terminate a keypad entry, it will switch the instrument
to the channel entry mode and tune the instrument to the keyed
channel.
4. MHz switches the instrument to frequency entry mode. If MHz is
used to terminate a keypad entry, it will switch the instrument to
frequency entry mode and tune the instrument to the keyed
frequency.
5. During a keypad entry, the backspace key will erase the character
preceding the cursor. A pending keypad entry can be aborted by
back spacing 1 click beyond an empty entry.
6. ENTER is used to terminate a keypad entry in channel or
frequency mode.
7. Keys F1 through F5 are referred to as function keys or soft keys
because their functions vary, based on the instrument operating
mode. In this manual, they are also referred to as F keys. Key
assignments are displayed along the bottom of the LCD screen.
Pressing one of the F keys will abort a keypad entry in progress.
8. The knob function varies, based on the selected instrument mode.
Knob functions include channel tuning, frequency tuning, speaker
volume, reference level, and span. In some modes, the knob
chooses among several items displayed on screen. In modes that
allow text string entry, the knob selects letters from a displayed
alphabet. ENTER must be pressed after each letter. The knob
overrides a partial keypad entry.
9. In meter mode, the speaker is automatically turned on to monitor
FM audio. To control the speaker volume in meter mode, select
the function key assigned to KNOB VOL and turn the knob. The
speaker also provides a warning for error conditions.
10. There are 10 menu keys, which provide access to on-screen
menus and submenus. Selecting any menu key will abort a
keypad entry in progress. The following is a general description
of menu functions:
H
LEVEL accesses the signal level measurements submenu. In
LEVEL mode, the five function keys are assigned to:
1 CHAN, PILOTS, 5 CHAN, ALL CHAN, and METER.