On Saturday, January 11, 2020 at 12:31:14 PM UTC-8, JS wrote:
On Saturday, January 11, 2020 at 9:49:32 AM UTC-8, wrote:
What brand/model 12v GPS antenna is being used, reasons?

R

Linx Antenna Factor
ANT-GPS-SH-SMA (with SMA connector)
ANT-GPS-SH-MCX (with MCX connector)
ANT-GPS-SH-MMX (with MMCX connector)

Each GPS engine provides phantom power, and the voltage from each is added. If you use a standard puck the voltage from 2 or 3 engines will be too high.
The Linx has higher gain with higher phantom voltage (up to 12v).
System Gain: 28dB (typ. includes 4dB
cable & filter loss)
Noise Figu 1.8dB @ fo, 2dB max.
Input Voltage: +2.5VDC to +12VDC
Jim

Dear customer,

Linx Technologies is announcing the end-of-life of the ANT-GPS-SH-SMA, ANT-GPS-SH-MCX and ANT-GPS-SH-MMX Series of antennas, and the launch of the SH2 Series GPS antennas.Key components critical to the design of the SH Series antennas have been discontinued by the IC manufacturer.

SH2 Series are DC 5V


Richard