Motorola M12 Oncore User's Guide Page 8

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Chapter 3 – Receiver Description
Motorola GPS Products - Oncore User’s Guide
External Gain Range
ACTIVE ANTENNA CONFIGURATION
The recommended external gain (antenna gain minus cable and connector losses) for
the GT Oncore R3 model is 10 to 26 dB. The recommended external gain for the UT
Oncore R5 model is 10 to 33 dB. A typical antenna system might have an active
antenna with 24 dB of gain and six meters of cable with 6 dB of loss. The external
gain would then be 18 dB, which is within the acceptable range. For more
information, refer to the Active Antenna Applications Note.
Figure 3.3: Oncore Receiver
Revision 5.0 08/30/02
3.8
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