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Diamond Point International

Trimble Zelia - Combined GPS Receiver/Antenna Companion Module

GPS Receiver with Optimally Matched and Tuned Onboard Antenna


Integrating a GPS receiver and antenna in a tough electrical environment is a complex RF design problem. Tight space constraints often place the GPS antenna near strong transmitters, noisy power supplies and fast microprocessors. Getting it right often takes multiple expensive iterations and, in the end, engineers are frequently forced to compromise performance for time-to-market considerations.

Take Advantage of Trimble's 30+ Years of Experience

Trimble has been integrating GPS receivers and antennas in all types of devices for over 30 years and can help you bring your product to market faster. Trimble's integrated antenna and GPS receiver product, Zelia, is comprised of the Trimble Condor C1011 GPS receiver and antenna element on an easily integrated module.

Integrated Monopole Antenna

Zelia includes a linearly-polarized printed monopole antenna element. It is an omni-directional antenna ideal for portable device applications. The printed monopole takes up less space than a patch antenna, giving Zelia a smaller size overall. With this antenna design, Zelia can be installed either perpendicular to the ground plane or off the edge of the PCB, which means an even smaller footprint on the PCB.

Zelia Integrates Antenna, GPS Receiver, RTC & LNA

The integrated antenna element is paired with the Condor C1011 GPS Receiver. The C1011 provides NMEA input and output, and PPS timing output. The C1011 is the most compact Condor receiver. Built with the best components and the highest production quality standards, it delivers top tier positioning performance, accuracy, and sensitivity in signal acquisition and tracking. Zelia also provides an internal 32 kHz crystal for Real Time Clock (RTC) and an internal Low Noise Amplifier (LNA).

Zelia Fits Projects on the go

Zelia fits just right for performance dependent applications that are space constrained and time and cost sensitive. Zelia has an omni-directional antenna perfect for portability, an integrated GPS receiver module that delivers quality positioning performance, and a small footprint.


Product Specification

GeneralGPS L1 frequency (1575.42 MHz), C/A code, 22-channel continuous tracking
See Condor product for further information (Zelia uses Condor C1011).
Update rate1 Hz (default), up to 5 Hz
AccuracyPosition: 2 m
Altitude: 3 m
PPS: ±25 ns
AcquisitionRe-Acquisition: < 2 s
Hot Start: < 2 s
Warm Start: 35 s
Cold Start: 38 s
Operational LimitsAcceleration: 2 g
Velocity: 515 m/s (COCOM Limit)
SensitivityTracking: -160 dBm
Acquisition: -146 dBm
ConnectorsPCM edge connector, .8 mm pitch, 1 mm thick, double sided, 10 contacts each side
Mating connectors:
• Vertical socket P/N: SAMTEC MEC8-110-01-L-DV
• Right angle socket P/N: SAMTEC MEC8-110-01-L-D-RA1
Interfaces1 serial port (transmit/receive)
PPS1Hz timing pulse, output
Level: 2.8 V TTL level
Pulse Width: Configurable, 4.2 ?s default
ProtocolsNMEA 0183
Serial PortsUART: 2.8 V TTL level
Default baud rate: 9600, 8-N-1
Baud rates supported: 4800, 9600, 19200, 38400, 57600, 115200
NMEA MessagesDefault: GGA, GSA, GSV, RMC
Configurable by software
Pinout1 Do not connect
2 Ground Ground
3 VCC (main power)
4 Ground Ground
5 TXD UART (output)
6 Ground Ground
8 Reserved Pull to VCC via a 10 k Ohm resistor
9 VRTC (backup power)
10 Ground Ground
11 Do not connect
12 Ground Ground
13 RXD UART (input)
14 Ground
15 PPS Interface (output)
16, 18, 20 Ground
17, 19 Do not connect
OtherSBAS (WAAS, EGNOS, MSAS) capable
aGPS capable
On-board low noise amplifier
Integrated omni-directional antenna element


ElectricalPrime power: 3.0 V to 3.6 V, <43 mA typical @ 20 °C
Backup power: 2.0 to 3.6V, 5 ?A typical @ 20 °C
Mechanical16 mm x 36 mm
19.2 mm x 36 mm including edge connector
TemperatureTemperature range (operation): -40 to +85° C
Temperature range (storage): -55 to +105° C
Humidity5% to 95% RH non-condensing @ 60°C
Weight2.09 g
Vibration0.008 g2/Hz: 5 Hz to 20 Hz
0.05 g2/Hz: 20 Hz to 100 Hz
–3 dB/octave: 100 Hz to 900 Hz
MTBF5,389,092 hours
Warranty1 Year

Ordering Details

Board77794-00 Zelia antenna companion module

Available in sample qtys, 100 piece trays and 500 piece boxes
Accessories87655-10 Zelia + C1011 Starter Kit
Order Online Trimble Zelia - Order Online