TeeJet RX 400p - Manual (Page 74)

RX 400p
98-05044 4-32
R1
CHxx_SVxx
This is the receiver channel (0 to 12) and the
satellite number being tracked by that channel. This
information is parsed from the GPGSV NMEA
message.
EL xx
This is the elevation (0 ° - horizon to 90°- vertical) of
the satellite for the particular receiver channel
referenced on the top line of the display. This
information is parsed from the GPGSV NMEA
message.
AZ xx
This figure is the azimuth of the satellite, referenced
to North (0
° = 360° = North), for the particular
receiver channel noted on the top line of the display.
An azimuth of 90
° is directly East. This information
is parsed from the GPGSV NMEA message.
SNR xx
This is the signal-to-noise ratio (carrier to noise
ratio) of the GPS satellite signal, per receiver
channel of the internal GPS engine. The value of
the SNR per satellite depends on the gain of the
antenna used, length of coaxial cable, elevation of
the satellite, and also if there are any minor
obstructions between the satellite and the receiver’s
antenna, such as foliage. A higher SNR reading is
desirable. For best channel tracking performance,
the RX 400p requires an SNR of above
approximately 40. This information is parsed from
the GPGSV NMEA message.
Back@ When accessed using the button, this menu item
returns the menu system to the previous menu.