HP 3326A Operating And Reference Manual page 42

Linear Frequency Sweep
Start Frequency
START
The START FREQ (START FREQuency) key enables display, entry, or modification of
the linear sweep start frequency of the channel selected with the CHAN key. The indi-
cator above the START FREQ key illuminates when a start frequency value is displayed.
The displayed frequency value is changed with the numeric keypad and units keys, or
modified with the MODIFY controls. The MHz, kHz, and Hz units allow convenient entry
of frequency values. Frequency resolution is 1 pHz for frequencies below 100 kHz and
1 mHz for frequencies above 100 kHz. Start frequency values may be greater than the
stop frequency values for a sweep from a high frequency to a low frequency.
2 Channel Mode
Each channel start frequency is set independently. The frequency range of each chan-
nel is 0 to 13 MHz.
2 Phase or Pulse Mode
The start frequency of both channels is set to the same value by a change in start fre-
quency of either channel. The frequency range is 0 to 13 MHz.
2 Tone Mode
The channel B start frequency tracks changes to the channel A start frequency. The
channel A start frequency range is 0 to 13 MHz. The channel B start frequency can
have up to a 100 kHz offset from channel A with a maximum frequency of 13.1 MHz.
If a channel A frequency change forces the channel B frequency to less than zero, the
channel B frequency is displayed as a negative value while the channel B output fre-
quency is the absolute value of the displayed value.
Internal Phase Modulation
The start frequency range of channel A is 0 to 13 MHz. The start frequency range of
channel B is 0 to 5 kHz.
Internal Amplitude Modulation
The start frequency range of channel A is 0 to 13 MHz. The start frequency range of
channel B is 0 to 100 kHz.
H V Option
With the high voltage option enabled, the start frequency range is 0 to 1 MHz. In the
2 TONE mode, the maximum channel B start frequency is 1.1 MHz.
HP-16 Example:
"ST1.512525KHZ"