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Checking vswr, Vswr, Hecking – Ag Leader GPS 2500/2500B Operators Manual User Manual

Page 22

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The Microhard MHX920-FS radio in the GPS 2500B is capable of transmitting at an output power
ranging from 0.1 W (20 dBm) up to 1 W (30 dBm) in 1 dB increments. Setting the power to the maximum
(1 W / 30 dBm) for most applications is recommended.

Typical GPS 2500/GPS 2500B power consumption

C

HECKING

VSWR

Voltage standing wave ratio (VSWR) provides an indication of any RF cabling
or antenna problems and can be read on the base station menu interface.

VSWR has the following characteristics:

• The lower the number the better.

3. Scroll to and select Power.

4. Use the Up Arrow and Down Arrow buttons to display
the desired power and press Enter to select the power.

Radio TX Power Setting

Typical Total GPS 2500B Power

Consumption

Typical Battery Discharge Time of 18 Ah
SLA Battery

20 dBm (0.1 W)

7.2 W

31 hours

27 dBm (0.5 W)

9.0 W

25.0 hours

30 dBm (1 W)

10.4 W

21.5 hours

Receive mode only

5.7 W

39 hours

NOTE

Typically the rover (GPS 2500) is always in receive mode and the base station (GPS 2500B) is always in transmit

mode.

Step

Base Station Screen

Item

Rover Screen Item