Exhibit_2_-_Preliminary_Specification__Radio_.docx

Exhibit 2 Event ID 0000040133

STATE OF CALIFORNIA

BID SPECIFICATION

POLICE PURSUIT VEHICLE

RADIO TEST CHP

METHODOLOGY

Radio Suppression: All electronic and or electrical equipment of the vehicle shall minimize Radio Frequency Interference/Electromagnetic Interference (RFI/EMI) including, but not limited to the following range of radio frequencies currently in use by CHP vehicles:

Very High Frequency (VHF) Low Band: 39 - 46 Megahertz (MHz) Transmit and Receive VHF High Band: 150 - 174 MHz Transmit and Receive Radio: Ultra High Frequency (UHF) 450 - 512 MHz Transmit and Receive Radio: 700 - 800 MHz Transmit and Receive Canines: 303 - 304 MHz Receive Cellular/LTE: 896 - 901 MHz Transmit, 935 - 940 MHz Receive Mobile WiFi: 2.4 Gigahertz (Ghz) (IEE 802.11 standard) In-Car Camera Wireless Microphone: 902 – 925 Mhz Body Worn Camera Bluetooth 5.0 @ 2.4 Ghz

Electronic and/or electrical equipment installed on the vehicle shall have sufficient suppression of conducted and/or radiated electromagnetic energy to prevent performance degradation below the standards presented in this specification.

Vehicle systems and performance must be unaffected by radio frequency (RF) from vehicle-installed public-safety radio transmitters listed in section 1.2.2 and reciprocally, the radio system must not be affected by vehicle systems.

RADIO TESTING ACCEPTANCE CRITERIA:

a. Continuously operating vehicle systems must have minimal effect on the performance of the radio equipment. Receiver performance degradation due to EMI from any single device or vehicle operating condition shall not exceed:

· 16 decibel (dB) low-band (39 - 46 MHz) (Mitigated)

· 5 dB high-band (150 -174 MHz)

· 2 dB on any other band

b. Keying the radio transmitters must have no effect on vehicle systems or performance.

NOTE: Additional modified testing may be required.

Exhibit 2

RADIO TEST (EV-20 RADIO SYSTEM)

a. RADIO TESTING PERFORMANCE REQUIREMENTS

i. Acceptance tests will be conducted by the State of California, California Governor’s Office of Emergency Services (CalOES), Public Safety Communications (PSC) using state supplied radio equipment.

ii. The vehicle will be tested for Electromagnetic Interference (EMI) to the following installed radio equipment for the EV-20 Quad Stack radio system:

1. Kenwood NX-5600H-F3 VHF low-band (39 - 46 MHz) radio, with roof-mounted Panorama AVIN2217 antenna.

2. Kenwood VMX730BF VHF high-band (150 - 174 MHz) radio, with roof-mounted Comtelco A1111BS-XX antenna.

3. Kenwood VMX830BF UHF (450 - 512 MHz) radio, with roof-mounted PCTEL BMWU4002S antenna.

4. Kenwood VMX930BF 700/800 MHz radio, with roof-mounted Laird QWB760 antenna.

5. Pyramid SVR-P752M 700 MHz digital vehicular repeater with roof-mounted PCTEL Z3476 antenna.

NOTE: This equipment list is current for the Kenwood Quad Stack EV-20 System as of April 2024. Changes or additions to system equipment may occur.

iii. For the following tests that are to be performed with the engine running, the engine shall be operated at the following two speeds:

1. Idle Speed: Factory recommended engine idle speed.

2. High Speed: Unloaded engine at 2000 revolutions per minute.

iv. If any modifications to supplier proposed vehicle are made at the test site and on the day of the test, they shall be made prior to commencement of the session of Radio EMI Testing. Full documentation for any modifications including drawings, specification sheets and photos shall be provided by the supplier.

v. Items tested for EMI may include, but are not limited to:

1. Ignition on

2. Engine

3. Windshield wipers

4. Headlights and taillights

5. Brake operation

6. Power windows

7. Emergency flashers

8. Turn signals

9. Power steering system

10. Air conditioner

11. Direct Current to Alternating Current Power Inverter (if equipped)

b. RADIO TESTING METHODS

i. Radios, antennas, and accessories will be provided by CHP and installed by CHP Fleet Operations prior to testing conducted by the State of California, CalOES PSC.

ii. The following test procedure will be performed for each radio (VHF-low, VHF-high, UHF, 700/800 MHz and vehicular repeater):

1. Measure effective sensitivity (see Exhibit A) on pre-determined test channels with each potential EMI producer listed above in Paragraph 1.2.5 turned off, and then individually turned on, noting the level of degradation in decibels, if any, when the item is turned on.

2. Using a spectrum analyzer connected to the vehicle antenna or a test antenna, look for EMI emissions from each item listed above in Paragraph 1.2.5 on other than the test channels. If any are found in the public safety bands used by the radio under test, measure the radio effective sensitivity degradation on sample channels likely to be affected by those emissions.

3. While test driving the vehicle, the radios will be keyed, transmitters activated, and any interference to vehicle systems noted.

c. RADIO TESTING ACCEPTANCE CRITERIA

i. Conducted and/or Radiated EMI:

1. Continuously operating vehicle systems must have minimal effect on the performance of the radio equipment. Receiver performance degradation due to EMI from any single device or vehicle operating condition shall not exceed:

· 16 dB low-band (39 - 46 MHz) (Mitigated)

· 5 dB high-band (150 - 174 MHz)

· 2 dB on any other band

2. Keying the radio transmitters must have no effect on vehicle systems or performance.

Exhibit A – Effective Sensitivity Measurement Procedure

Test equipment used by CalOES PSC Special Projects Unit:

1. RF signal generator capable of frequency modulation at 1000 Hz test tone and standard Continuous Tone-Coded Squelch System (CTCSS) tones simultaneously (Reference Brand/Model: IFR 1200A/S or equivalent)

2. Directional Coupler (Reference Brand/Model: Mini-circuits ZFDC-20-4-N+ or equivalent)

3. Audio Analyzer/Signal-to-Noise and Distortion (SINAD) (SigMETER) (Reference Brand/Model: IFR 1200A/S or equivalent)

Measurement Procedure:

1. Modulate the RF generator with a 1 Kilohertz tone at 60 percent of full deviation for the channel being tested. If CTCSS is used, the deviation shall be +/- 500 Hz.

2. Connect the generator directly to the radio antenna connector and adjust the generator power level for 12 dB SINAD on the audio analyzer. Note this level in decibel-milliwatts (dBm); this is the basic sensitivity of the receiver.

3. Connect the equipment as shown above, with a 50 ohm (Ω) load in place of the antenna.

4. Adjust the generator for a 12 dB SINAD reading on the audio analyzer and note the generator power level in dBm.

5. Disconnect the 50Ω load and connect the antenna.

6. Re-adjust the generator level for 12 dB SINAD.

The effective sensitivity is the basic sensitivity plus the increase in dB, if any of the generator levels from step 4 to the level from step 6, necessary to reestablish 12 dB SINAD.

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