Technical Parameters and Equipment Requirements
- Frequency channels allocated for SRRS are on a shared, non-interference basis.
- Use of linear amplifiers/boosters and external antennas is strictly prohibited.
- SRRS equipment must have fixed, non-extendible frequency range, be portable, have a maximum output power of 3 watts, use frequency modulation for voice emission, and be duly type approved or accepted.
- Frequency band allocated: 325.0000 - 325.4875 MHz using a 12.5 KHz channeling plan.
- Equipment must conform to detailed technical specifications provided in Attachment A.
- Equipment meeting specifications allowed after type approval/acceptance.
Application Procedures for Type Approval and Type Acceptance
- Applicants must submit fully accomplished application forms along with required fees.
- For Type Acceptance: submit type acceptance fee, certified foreign type approval certificates, test reports, full technical documents, and color photographs showing internal and external equipment.
- For Type Approval: submit type approval fee, model or prototype with test accessories, full technical documents, and color photographs.
- Application forms are available from the NTC.
- Equipment labeling with detailed drawings is required to ensure proper markings.
Importation and Dealer Regulations
- Import permits and special permit numbers are granted only to NTC-authorized radio dealers.
- Special permit fees apply per SRRS unit.
- Dealers and manufacturers must submit periodic sales and stock reports including serial and permit numbers.
Licensing, Fees, and Special Permit Issuance
- A one-time special permit fee of PHP 1,000 per unit imposed upon authorized dealers.
- Each SRRS unit purchased from authorized dealers is issued a special permit number serving as the permit to operate.
- Type Approval fees include PHP 150 filing fee, PHP 5,000 laboratory fee, and PHP 1,200 certificate fee.
- Type Acceptance fees include PHP 150 filing fee and PHP 1,200 certificate fee.
Administrative Sanctions
- Unauthorized purchase, possession, or operation without SRRS special permit is penalized under existing radio laws.
- Unauthorized sale of SRRS units by unaccredited dealers and failure to submit sales reports are similarly sanctioned.
Effectivity and Revisions
- The Circular takes effect 15 days after publication.
- It may be revised, revoked, or amended by the Commission in the interest of public service.
- Any inconsistent prior circulars or regulations are superseded.
Technical Standards and Specifications (Attachment A)
- Scope: Covers multi-channel portable radios for localized communication.
- Max transmitter power: 3 watts; channel spacing: 12.5 kHz.
- Operates on frequency band 325.0000 to 325.4875 MHz with shared single-frequency channels.
- Radio cannot operate on unauthorized frequencies or be altered to do so.
- Markings required both externally and internally as specified.
- Emission type: Frequency Modulation (FM) only.
- Modulation limiting ±2.5 kHz; Frequency error ±3 ppm.
- Conducted spurious emissions must be attenuated according to formula.
- Must have Continuous Tone Code Squelch system with at least 10 distinct tones.
- Unique antenna fittings required; prohibited fittings include BNC, type N, PL/SO series.
- Standard and extreme test conditions specified including temperature, voltage, and modulation tests.
- Transmitter and receiver tests detail carrier power, modulation limits, spurious emissions, and frequency error.
- Measurements and limits established to ensure compliance with technical standards.