Pursuant to the provision of Act. No. 3846 as amended, Executive Order No. 546, and the existing International Radio Regulation and the purpose of the optimum radio frequency use and its efficient management, the following guidelines on radio frequency assignment are hereby prescribed:

1. Availability of radio frequency shall first be ensured before a user is permitted to purchase.  The Permit to Purchase issued by the Commission shall include a provisional Permit to Possess valid for forty-five (45) days of non-extendable basis.  Said permit shall be declared null and void and the proposed frequency (ies) recalled, unless permitee is able to submit a formal application for either issuance of Construction Permit when required or the issuance of a Radio Station license within the above forty-five (45) days.

2. Strict Compliance with accepted spectrum planning principles and licensing conditions through proper spectrum engineering standards shall be observed.

3. Only type approved/accepted equipment by the Commission shall be authorized to private Networks to Operate in the UHF/VHF narrow band.

4. All frequency assignment shall be on basis of shared usage unless otherwise authorized by the Commission.

5. Frequency plans shall be adopted using standardized channel separation and channel spacing.

6. Radio frequency channel shall be assigned to minimize interference due to intermodulation products.

7. To define the area/distance coverage, radio station shall only be authorized a maximum effective radiated power and/or allowable antenna height.

This Circular shall take effect immediately and any other Circulars inconsistent hereto are deemed amended or suspended.

Adopted: 13 Feb. 1990

(SGD.) JOSEFINA T. LICHAUCO Acting Commissioner
(SGD.) FLORENTINO L. AMPIL Deputy Commissioner	(SGD.) ALOYSIUS R. SANTOS Deputy Commissioner