Rainbow Electronics EB-230 - Manual (Page 8)

EB-230 Data Sheet
Ver 1.3 8
4 Application Information
4.1 GPS Antenna Recommendations
Follow below recommendations when choosing GPS antenna for EB-230 for best
system performance. Transystem also offers active antenna products for optimal
performance with EB-230. For details, please contact your Transystem sales contact
directly.
• Use active antenna that works with 3V power supply
• Receiving frequency 1575.42 ± 1.032MHz
• Polarization RHCP (right hand circular polarized)
• Output impedance = 50 Ohm
• 15dB
≦ LNA Gain ≦ 20dB
• Noise figure ≦ 2.0dB
•
Connector: surface mounted on main PCB, Ipex or MMCX
4.2 Application Circuit
【 Note1】: GPS Status (pin#4) can be used as GPS position fix indicator.
【 Note2】: V12RTC (pin#15) could connect to 1.0 ~1.5Vdc power supply directly.
【 Note3】: Separate V30D (pin#3) from V30A (pin#16) for optimal performance.