ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
B406-4 (453-5004)
Page 13 of 70
25-62-03
TASK 25-62-03-990-804
4.
Frequency Allocations
SUBTASK 25-62-03-990-001
A.
Application
1)
This section addresses the 406.0-406.1 MHz transmitter window and the specific frequency band
allocations residing above 406.025 MHz, beginning with 406.028 MHz, which are assigned or reserved
within the 406.0-406.1 MHz distress frequency window.
SUBTASK 25-62-03-990-002
B.
Discussion
1)
The 406 MHz transmitter frequency of the B406-4 ELT was originally 406.025 MHz. In order to comply
with COSPAS-SARSAT frequency allocation requirements, changes to the 406 MHz frequency may occur
since the original release of this product.
2)
While the original B406-4 ELTs covered by this manual transmit on 406.025 MHz, current B406-4 ELTs
may not. The product identification label on each ELT specifies the transmitting frequencies of the
individual ELT. The 406 MHz component may be 406.025, 406.028, 406.037 MHz, etc. Allocation of
frequencies, based on beacon population per specified frequency band, is controlled by
COSPAS-SARSAT.
3)
The frequency references throughout this manual for the 406 MHz component should be considered the
baseline and the specific frequency indicated on the ELT product label should be substituted if it differs
from 406.025 MHz.
