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RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LD2 | data sheet

09/2018 - Revision B | Page 15/20

Command List

All values are in hexadecimal notation unless other-

wise noted.

Param. Default Min

Max

Name

Description

S04

02

01

0A

Sampling rate

Sampling rate = value*1280Hz

Only valid after reset.

S05

10

01

40

Start up learn

Number of FFT blocks that are used to learn the noise threshold average at start up.

01: no average at start up, fastest start up time

40: best average at start up, slowest start up time

Only valid after reset.

S06

01

00

03

Function of miscella-

neous output

Configurable functions of the miscellaneous output pin. The functions directly repre-

sent the detection register.

Value

Function

Logic Low

Logic High

00

Detection

No detection

Valid detection

01

Direction

Backward/receding

Forward/approaching

02

Range

Low speed range

High speed range

03

Micro detection

No detection

Valid micro detection

Detailed information about the functions can be found in the command description of

the parameter R00.

S07

1E

14

50

Minimum

threshold offset

Defines the minimum threshold offset in dB with the ground line as reference.

S08

0A

01

30

Minimum

threshold margin

Defines the minimum margin between the noise average and the threshold curve.

S09

0A

00

FF

Threshold noise

adaption speed

The speed of the noise average threshold adaption can be set with this parameter.

The value defines after how many FFT blocks the noise threshold average is adapted

again.

S0A

01

00

01

Use FFT average

FFT averaging flag to reduce random noise.

00: averaging off

01: averaging on

Doubles the response and reaction time if enabled.

S0B

01

00

01

Use sensitivity

potentiometer

Flag to enable the usage of the analogue input for the sensitivity.

00: use digital sensitivity setting of parameter D01

01: use potentiometer input for sensitivity setting

S0C

01

00

01

Use hold time poten-

tiometer

Flag to enable the usage of the analogue input for the hold time.

00: use digital hold time setting of parameter D00

01: use potentiometer input for hold time setting

S0D

00

00

01

Use micro detection

for retriggering

Flag to enable the usage of the micro detection to retrigger the detection algorithm.

00: micro detection retriggering disabled

01: micro detection retriggering enabled

Table 8: Class S 8-Bit system parameters