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§ 1704.3. Transponder Transmit and Receive Antennas.

21 CA ADC § 1704.3Barclays Official California Code of Regulations

Barclays California Code of Regulations
Title 21. Public Works
Division 2. Department of Transportation
Chapter 16. Compatibility Specifications for Automatic Vehicle Identification Equipment
Article 5. Transponder Specifications
21 CCR § 1704.3
§ 1704.3. Transponder Transmit and Receive Antennas.
Currentness
(a) Antenna Polarizations.
The transponder transmit and receive antennas shall have EM field components that are predominantly horizontally polarized transverse to normal traffic flow. Horizontal, linear, circular or elliptical polarizations are allowed.
(b) Antenna Field of Views.
The transponder transmit and receive antennas shall have a field of view which is a 90° cone in front of the vehicle. The projection of the horizontal component of the cone's axis shall be parallel to the lane and the vertical component of the cone's axis shall be 35° horizontal.

Credits

Note: Authority cited: Section 27565, Streets and Highways Code. Reference: Sections 27564 and 27565, Streets and Highways Code.
History
1. New section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2. Amendment of subsection (a) filed 5-1-98; operative 5-31-98 (Register 98, No. 18).
3. Renumbering of former section 1704.3 to section 1703.3 and renumbering of former section 1705.3 to section 1704.3 filed 11-28-2017; operative 1-1-2018 (Register 2017, No. 48).
This database is current through 4/19/24 Register 2024, No. 16.
Cal. Admin. Code tit. 21, § 1704.3, 21 CA ADC § 1704.3
End of Document