Navman la000508 User Manual

LA000507G © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.

The Jupiter 20 receiver is programmed to deliberately lose track if any of the following limits are 

exceeded:

Velocity:     500 m/s max
Acceleration:  4 G (39.2 m/s

2

) max

Vehicle jerk:   5 m/s

3

 max

Altitude:     18 000 m max (referenced to MSL)

The position and velocity accuracy of the Jupiter 20 are shown in Table 3‑4, assuming full 

accuracy C/A code (Clear/Acquisition). These values are the same in normal operation and 

when TricklePower is active.

horizontal CEP

2.1 m

2.2 m

horizontal (2 dRMS)

5.2 m

5.5 m

vertical VEP

2.5 m

2.5 m

velocity 2D (2 sigma)*

0.1 m/s

0.15 m/s

4.1.1 Primary power
The Jupiter 20 GPS receiver is designed to operate from a single supply voltage, meeting the 

requirements shown in Table 4‑1.

input voltage

2.9 to 3.6 VDC

2.9 to 3.6 VDC

2.9 to 3.6 VDC

current (typ) at full power (3.3 V)

75 mA

85 mA

80 mA

current (max)

100 mA

100 mA

100 mA

current (typ) at 20% TricklePower

TM

35 mA

60 mA

35 mA

battery backup voltage

2.4 V to 3.6 V

battery backup current

<10 µA typ at 25°C

maximum rise time

unlimited

ripple

not to exceed 50 mV peak to peak

4.1.2 Low supply voltage detector
The module will enter a reset mode if the main supply drops below 2.8 V.

4.1.3 VCC_RF power supply
The VCC_RF (pad 20) provides a regulated 2.8 V power source. The specifications for this 

supply are as follows:

voltage: 2.8 V ± 2%

current max: 25 mA for J20/J20S; 5 mA for J20D