User manual

ManualsBrandsVOLTCRAFT ManualsLaboratory Test EquipmentDigital 70 MHz 4-channel 250 null 10 null 8 Bit Digital storage (DSO), Spectrum analyzer

COMMAND DETAILS

35

#42000

Header identifier

Indicates the number

of characters that will

encode the number of

data points (ie. 2000

= 4 characters) after

which the raw data

will follow.

Indicates the number

of bytes that follow

(for the raw data).

ASCII

Raw Data:

Each two bytes (in hex) encodes the

vertical data of a data point. The data

is signed hex data (2’s complement, -

32768 ~ 32767).

Waveform Raw Data Example:

Header raw data……….

Hex:

23 34 32 30 30 30 00 1C 00 1B 00 1A 00

1A 00 1B ………..

ASCII/Decimal:

#42000 28 27 26 26 27…….

The actual value of a data point can be

calculated with the following formula:

(Decimal value of hex data/AD

Factor) * vertical scale.

Note: AD Factor is fixed as 25. The

vertical scale is returned with the

acquisition settings that precede the

raw data.

For example if the raw data for a point

is 001C (=28 decimal) then,

(28/25) x 0.5 = 0.56V