Automotive & Fleet
Vehicle-Mounted GNSS Antennas
Car-ceiling, one-line all-in-one, and shoulder-clip antennas for ADAS, autonomous driving, fleet management, and BDS-compliant military vehicle installations. Magnetic mount, wide-voltage input, GJB 1389 EMC variants.
Application Overview
Why Vehicle Antennas Are Their Own Category
Vehicles are a hostile GNSS environment: the car body blocks low-elevation satellites, the engine bay emits broadband RFI, other onboard radios (cellular, V2X, radar) create in-band interference, and installation must be quick, repeatable, and survivable to the next wash cycle. Vehicle-mounted antennas balance aerodynamics, EMC hardening, mechanical attachment, and multi-constellation reception all at once — and GNSource's vehicle line is designed for each of those trade-offs.
The TDXL-CZ2001 through CZ2004 car-ceiling series covers the single-band and multi-band split cleanly: CZ2001/2002 are cost-optimized BDS B1 + GPS L1 for fleet tracking; CZ2003/2004 step up to full BDS B1/B2/B3 + GPS L1/L2/L5 + GLONASS + Galileo multi-constellation for lane-level ADAS and autonomous driving. All CZ-series ship with magnetic mount and SMA output.
For integrated navigation + BDS short-message deployments — a common configuration in Chinese fleet, emergency-response, and maritime-adjacent vehicles — the CZBLS one-line family (3001/3002/3003/3005/4001/4002/4006) collapses both functions into a single dome with PA + LNA integrated, reducing feeders to one coax. CZBLS4002 supports wide-voltage 6–36 V for both 12 V and 24 V platforms, and CZBLS4006 is GJB 1389-2005 EMC compliant for Chinese military vehicles.
Key Specifications to Consider
Mounting
Magnetic is standard; screw, shoulder-clip, and roof-mount variants available.
Band Coverage
Single-band L1 for cost / multi-freq for lane-level ADAS.
Tx Capability
One-line CZBLS variants add L-band Tx for BDS short message.
EMC Certification
GJB 1389-2005 for Chinese military vehicle platforms.
Operating Voltage Range
Wide 6–36 V input accepts any vehicle bus.
Product Catalog
Vehicle-Mounted Antenna Models
11 models in this category. Click Request Quote on any row to pre-fill the inquiry form.
| Model | Type | Frequencies | Key Specs | Form Factor | Action | |
|---|---|---|---|---|---|---|
 | TDXL-CZ2001 | Mini Car Ceiling | GPS L1/L5 · BDS B1 · GLONASS G1 | Magnetic mount · 34dB LNA · IP67 · Phase center ±5mm | 65×58×24mm · 120g · SMA-KF | |
| TDXL-CZ2002 | Lightweight Car Ceiling | GPS L1/L5 · BDS B1 · GLONASS G1 | Magnetic mount · 34dB LNA · SMA output · IP67 | 65×59×27mm · 140g · SMA-KF | ||
| TDXL-CZ2003 | Mini Multi-Constellation Ceiling | BDS/GPS/GLONASS/Galileo multi-frequency | Full multi-constellation · 34dB LNA · Phase center ±5mm | 65×58×24mm · 120g · SMA-KF | ||
| TDXL-CZ2004 | Lightweight Multi-Constellation Ceiling | BDS/GPS/GLONASS/Galileo multi-frequency | Full multi-constellation · 34dB LNA · IP67 | 65×59×27mm · 140g · SMA-KF | ||
 | TDXL-CZBLS3001 | One-Line Car (B3/B2b) | BDS B3 · B2b · L (Tx) · S (Rx) | PA + LNA integrated · Magnetic + screw mount · 5W Tx | Ø130 × 48mm · 600g · TNC-KF | |
 | TDXL-CZBLS3002 | One-Line Car (B3) | BDS B3 · L · S | PA + LNA · Magnetic mount · 5W Tx | Ø100 × 48mm · 500g · TNC-KF | |
| TDXL-CZBLS3003 | One-Line Car (B3I/B2b) | BDS B3I · B2b · L · S | PA + LNA · Global short message · Magnetic mount | Ø100 × 48mm · 500g · TNC-KF | ||
| TDXL-CZBLS3005 | One-Line Shoulder Clip | BDS B3I · B2b · L · S | Shoulder clip + magnetic · Low-power 5–5.5V | Ø68 × 34mm · 200g · SSMA | ||
 | TDXL-CZBLS4001 | 5-Band One-Line | BDS B3I · B2b · B1I · L · S | 5-band · Cavity filter anti-jamming · Magnetic + screw | Ø185 × 52mm · 1.3kg · TNC-KF | |
| TDXL-CZBLS4002 | Wide-Voltage One-Line | BDS B3I · B2b · B1I · L · S | Wide voltage 6–36V · Bidirectional short message · 5W | Ø185 × 52mm · 1.3kg · TNC-KF | ||
| TDXL-CZBLS4006 | GJB-Compliant One-Line | BDS B3I · B2b · B1I · L · S | GJB 1389-2005 EMC · High-power limiter · 5W Tx | Ø185 × 48mm · 500g · TNC-KF |
TDXL-CZ2001
Mini Car Ceiling
- Frequencies
- GPS L1/L5 · BDS B1 · GLONASS G1
- Key Specs
- Magnetic mount · 34dB LNA · IP67 · Phase center ±5mm
- Form Factor
- 65×58×24mm · 120g · SMA-KF
TDXL-CZ2002
Lightweight Car Ceiling
- Frequencies
- GPS L1/L5 · BDS B1 · GLONASS G1
- Key Specs
- Magnetic mount · 34dB LNA · SMA output · IP67
- Form Factor
- 65×59×27mm · 140g · SMA-KF
TDXL-CZ2003
Mini Multi-Constellation Ceiling
- Frequencies
- BDS/GPS/GLONASS/Galileo multi-frequency
- Key Specs
- Full multi-constellation · 34dB LNA · Phase center ±5mm
- Form Factor
- 65×58×24mm · 120g · SMA-KF
TDXL-CZ2004
Lightweight Multi-Constellation Ceiling
- Frequencies
- BDS/GPS/GLONASS/Galileo multi-frequency
- Key Specs
- Full multi-constellation · 34dB LNA · IP67
- Form Factor
- 65×59×27mm · 140g · SMA-KF
TDXL-CZBLS3001
One-Line Car (B3/B2b)
- Frequencies
- BDS B3 · B2b · L (Tx) · S (Rx)
- Key Specs
- PA + LNA integrated · Magnetic + screw mount · 5W Tx
- Form Factor
- Ø130 × 48mm · 600g · TNC-KF
TDXL-CZBLS3002
One-Line Car (B3)
- Frequencies
- BDS B3 · L · S
- Key Specs
- PA + LNA · Magnetic mount · 5W Tx
- Form Factor
- Ø100 × 48mm · 500g · TNC-KF
TDXL-CZBLS3003
One-Line Car (B3I/B2b)
- Frequencies
- BDS B3I · B2b · L · S
- Key Specs
- PA + LNA · Global short message · Magnetic mount
- Form Factor
- Ø100 × 48mm · 500g · TNC-KF
TDXL-CZBLS3005
One-Line Shoulder Clip
- Frequencies
- BDS B3I · B2b · L · S
- Key Specs
- Shoulder clip + magnetic · Low-power 5–5.5V
- Form Factor
- Ø68 × 34mm · 200g · SSMA
TDXL-CZBLS4001
5-Band One-Line
- Frequencies
- BDS B3I · B2b · B1I · L · S
- Key Specs
- 5-band · Cavity filter anti-jamming · Magnetic + screw
- Form Factor
- Ø185 × 52mm · 1.3kg · TNC-KF
TDXL-CZBLS4002
Wide-Voltage One-Line
- Frequencies
- BDS B3I · B2b · B1I · L · S
- Key Specs
- Wide voltage 6–36V · Bidirectional short message · 5W
- Form Factor
- Ø185 × 52mm · 1.3kg · TNC-KF
TDXL-CZBLS4006
GJB-Compliant One-Line
- Frequencies
- BDS B3I · B2b · B1I · L · S
- Key Specs
- GJB 1389-2005 EMC · High-power limiter · 5W Tx
- Form Factor
- Ø185 × 48mm · 500g · TNC-KF
Flagship Military One-Line
TDXL-CZBLS4002 — Wide-Voltage 5-Band Vehicle Antenna with Bidirectional BDS
The TDXL-CZBLS4002 consolidates navigation reception (BDS B3I, B2b, B1I), receive-path S-band short messaging, and 5 W L-band short-message transmission into a single roof-mounted 185 mm-diameter unit — including integrated LNA, power amplifier, and front-end cavity filter for interference rejection. Wide 9–36 V input voltage range directly interfaces with both civilian 12 V/24 V and military 28 V vehicle power systems without external conditioning. Supports bidirectional BDS regional short messaging with 1000-character single-transmission capacity. Smart power management idles the PA when not transmitting, and front-end power limiting protects receiver LNAs from hostile or accidental high-power exposure. Designed for ship-borne, armored vehicle, command post, and special-purpose wheeled platform deployments.
- Operating bands
- BDS B3I · B2b · B1I · L (Tx) · S (Rx)
- Polarization
- RHCP (Rx) / LHCP (L Tx)
- Impedance
- 50 Ω
- Gain at zenith
- B3I ≥3.5 dBi · B2b ≥5.0 dBi · B1I ≥3.5 dBi · L ≥3 dBi · S ≥3 dBi
- Elevation gain (20°)
- ≥-3 dBi across all bands
- Phase center
- ±2 mm
- LNA gain
- 38 ± 2 dB (adjustable)
- LNA noise figure
- ≤2.0 dB
- LNA operating voltage
- +6V to +36V
- LNA current
- ≤120 mA
- PA input power
- ≥ -25 dBm
- PA output (P-1dB)
- 40 dBm (10W saturated)
- PA efficiency
- ≥35%
- PA operating voltage
- +9V to +36V
- PA current
- ≤4.5 A (Tx active)
- Short message capacity
- 1000 Chinese characters per transmission
- Connector
- TNC-KF (waterproof)
- Mounting
- Magnetic + screw locking
- Dimensions
- Ø185 mm × 52 mm
- Weight
- ≤1.3 kg
- Operating temperature
- -40°C to +70°C
- Storage temperature
- -55°C to +85°C
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FAQ
Vehicle-Mounted FAQs
Typical integration questions for ADAS, autonomous driving, GJB-compliant military vehicles, and fleet tracking installations.
Which models support ADAS and autonomous-driving lane-level positioning?
Multi-frequency TDXL-CZ2003 and CZ2004 — supporting BDS B1/B2/B3, GPS L1/L2/L5, GLONASS G1/G2, and Galileo multi-constellation — are recommended for lane-level ADAS positioning. Single-band CZ2001 / CZ2002 (BDS B1 + GPS L1) fit cost-sensitive fleet tracking and general navigation use cases.
Magnetic mount or screw mount?
CZ-series car ceiling antennas ship with magnetic mount as standard. One-line CZBLS variants (CZBLS4001, 4002, 4006) support both magnetic and screw mounting — selectable per order. The CZBLS3005 is specifically a shoulder-clip variant for wearable or portable applications.
Which vehicle-mounted antennas are GJB EMC compliant for military vehicles?
TDXL-CZBLS4006 is tested to GJB 1389-2005 — the Chinese military-vehicle electromagnetic-compatibility standard. It includes a high-power limiter for harsh environments near mobile radios and other high-power emitters mounted on the same vehicle.
Can one antenna cover navigation plus BDS short-message for fleet tracking?
Yes. TDXL-CZBLS3001, 3002, and 3003 integrate BDS navigation, L-band short-message transmit, and S-band receive with PA + LNA in a single dome antenna — reducing cabling, weight, and installation time on commercial fleets and emergency-response vehicles.
Do any variants support wide-voltage vehicle platforms?
TDXL-CZBLS4002 explicitly supports wide-voltage 6–36 V DC input, accommodating both 12 V and 24 V vehicle platforms without external regulation. Standard CZ-series antennas operate at 3.0–12 V DC, typically powered through the GNSS receiver's antenna bias feed.
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