2654 INTERNATIONAL AGREEMENTS OTHER THAN TREATIES [62 STAT. ference to other stations affected will thereafter be cal- culated by the '50% exclusion' method without regard to the alternate method of calculation. "(f) The 50% root-sum -square rule is recognized as ap- plicable between any and all Class III stations on regional channels and between only Class II stations on clear channels. I suggest that, if an agreement in the sense of the foregoing para- graphs is acceptable to the Government of Canada, this note and your reply thereto in similar terms be regarded as constituting the terms of an understanding on the subject between the two Governments. Accept, Excellency, the renewed assurances of my highest consid- eration. For the Acting Secretary of State: GARRISON NOrTON Enclosures: Two Graphs as follows: 1. "10% Skywave Signal Range, 540 kilocycles to 1600 kilocycles". 2. "Angles of Departure versus Transmission Range". His Excellency HITME WRONG, Ambassador of Camada.
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