Polhemus VIPER 4 - Nearest Source; Figure 16. Viper 16 Local Source Locations; Figure 17. Viper 16 Nearest Source, Example a; Figure 18. Viper 16 Nearest Source, Example B

USER MANUAL
Page 32 of 86 URM18PH392 Rev A. May 2020
FIGURE 18. VIPER™ 16 NEAREST SOURCE, EXAMPLE B
On a VIPER™ 16 system:
 Behaves as up to four independent 4-Sensor systems.
 Two–four Sources are plugged into Source ports 1-4.
 Sources must each operate at a different EM frequency*.
 One Source must be plugged into Source port 1.
 Sensors 1-4 report P&O with respect to their Local Source: Source 1.
 Sensors 5-8 report P&O with respect to their Local Source: Source 2.
 Sensors 9-12 report P&O with respect to their Local Source: Source 3.
 Sensors 13-16 report P&O with respect to their Local Source: Source 4.
*See warning note above.
3.5.3.1 NEAREST SOURCE
Viper 16™ flexibility allows variations on the Local- and Single-Source modes. Groups of 4 Sensors report P&O
with respect to the Nearest Source: The Local Source, or if no Local Source is detected, then the first Source
detected on a lower numbered Source Port.
 Applies to VIPER™ 16 systems only.
 Two or three Sources are plugged into any Source ports 1-4.
 One Source must be plugged into Source port 1.
 All Sources must operate at different EM frequencies*.
Examples A, B, and C below illustrate three of many possible combinations.
Example A:
 VIPER™ 16 behaves as independent 4- and 12-Sensor systems.
 Different freq. Sources are plugged into Source Ports 1 and 2.
 Sensors 1-4 report P&O with respect to their Local Source:
Source 1.
 Sensors 5-16 report P&O with respect to their Nearest Source:
Source 2.
Example B:
 VIPER™ 16 behaves as independent 12- and 4-Sensor systems.
 Different freq. Sources are plugged into Source Ports 1 and 4.
 Sensors 1-12 report P&O with respect to their Nearest Source:
Source 1.
 Sensors 13-16 report P&O with respect to their Local Source:
Source 4.
Example C:
 VIPER™ 16 behaves as three independent 4-, 8- and 4-Sensor systems.
 Different freq. Sources are plugged into Source Ports 1, 2, and 4.
 Sensors 1-4 report P&O with respect to their Local Source:
Source 1.
 Sensors 5-16 report P&O with respect to their Nearest Source:
Source 2.
 Sensors 13-15 report P&O with respect to their Local Source:
Source 4.
*See warning note above.
FIGURE 16. VIPER™ 16 LOCAL SOURCE LOCATIONS
FIGURE 17. VIPER™ 16 NEAREST SOURCE, EXAMPLE A
FIGURE 19. VIPER™ 16 NEAREST SOURCE, EXAMPLE C