RADIOCOMMUNICATION  BUREAU
Tlx:	421   000 UIT CH
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Circular-letter
CR/2			
					30 April 1993
				


         TO ADMINISTRATIONS OF MEMBERS OF THE ITU


Subject:Closure date for submission by administrations 
	of the seasonal High Frequency Broadcasting
	Schedule for the period November 1993 - February 
	1994 (D-93)

To the Director-General

Dear Sir, 

1.	I wish to inform you that in accordance with the 
provisions of No. 1749 of the Radio Regulations, the 
Radiocommunication Bureau has set  30 June 1993 as the 
closure date for the receipt of the above-projected 
seasonal Broadcasting Schedules.

2.	In view of the need to issue the Tentative 
Schedule to administrations two months ahead of the 
implementation date (No. 1760 of  the Radio 
Regulations) and considering the time required for 
reproduction and despatch, administrations are urged to 
send in their Schedules before the closure date and, 
so far as possible, before 15 June 1993.

3.	Late submissions not only may fail to be 
incorporated in the Tentative Schedule but could 
seriously affect its value to administrations and that 
of any recommendation made by the Bureau. Utilisation 
of an incomplete Tentative Schedule, moreover, would 
lead to confusion and difficulty as soon as it is 
published.

4.	The administrations are reminded that the 
prescribed form in Section A of Appendix 2 to the Radio 
Regulations, Geneva, 1979 is still to be used for 
submitting the seasonal Schedules.  In view of the 
extended use made of the computer for the treatment of 
the frequency assignment notices, the Bureau would not 
be able to treat information submitted on any other 
form. Only those frequencies which will be used for 
this particular seasonal period should be notified. 
Your attention is invited to IFRB Circular-letter No. 
785 of 12 June 1989 in which administrations were 
informed that seasonal Schedules submitted on diskette 
using the programme described in the circular-letter 
could also be accepted.

5. 	If the seasonal Broadcasting Schedules are not 
received by the prescribed date, the Bureau will be 
obliged to use the requirements which it included in 
the Tentative Schedule for the preceding season.

6.	With regard to the seasonal Schedule for the 
period November 1993  - February 1994 (D-93) the 
predicted value for the 12-month running mean sunspot 
number R12 is assessed to be 52.

		Yours faithfully, 




		Richard C. Kirby
		Director

Distribution: Administrations of Members of the ITU