Frequency - HP E1340A User Manual

[SOURce:]FREQuency:DOWNload :COMPlete
Subsystem Syntax
154 HP E1340A Command Reference
The minimum possible frequency is 0 Hz. The maximum possible
frequency depends on the frequency of the currently selected reference
oscillator source (
SOURce:ROSCillator:SOURce
( SOURce:FUNCtion:SHAPe
Sine Wave Output: the maximum possible frequency is the current
reference oscillator frequency multiplied by .34924596548 (15 MHz
when the 42.94967296 MHz internal reference oscillator is used).
Square Wave, Ramp, and Triangle Outputs: the maximum
possible frequency is the current reference oscillator frequency
multiplied by 0.0232830643654 (1 MHz when the 42.94967296 MHz
internal reference oscillator is used).
SOURce:FUNC:SHAPe:USER:
depends upon how many segments are being output. For
SOURce:FUNCtion:USER A | B | C | D | HOP_AB
is output, and the maximum possible frequency is the reference
oscillator frequency multiplied by .34924596548 (15 MHz when the
42.94967296 MHz internal reference oscillator is used). For
SOURce:FUNCtion:USER AB
maximum possible frequency is half the above value. For
SOURce:FUNCtion:USER ABCD
maximum possible frequency is one-fourth the above value.
Waveforms in the HP E1340A are generated by indexing through
4,096 points of memory data (8,192 for
or 16,384 for SOURce:FUNCtion:USER ABCD
waveform period. At the frequency of (reference oscillator
frequency / memory points) each point is output for exactly one
reference oscillator period. At lower frequencies, some or all points
are output for multiple clock periods, with all points being output for
the same number of clock periods at frequencies that are a power of
two (2, 4, 8, etc.) less than the above. At higher frequencies, some
points are skipped on each repetition.
[SOURce:]

FREQuency

:CENTer < center_freq
[:CW|:FIXed] <
:FSKey < frequency1
mode
:MODE <
:SPAN < freq_span
start_freq
:STARt <
:STOP < stop_freq
) and the waveform shape
), according to the following rules:
the maximum possible frequency
, two segments are output, and the
, four segments are output, and the
SOURce:FUNCtion:USER AB
>
frequency >
> , < frequency2 >
>
>
>
>
, only one segment
) within the specified
Chapter 7