IRImplementing rule
ETSO-C170
HIGH FREQUENCY (HF) RADIO COMMUNICATIONS TRANSCEIVER EQUIPMENT OPERATING WITHIN THE RADIO FREQUENCY 1.5 TO 30 MEGAHERTZ
1 Applicability
This ETSO gives the requirements which High Frequency (HF) Radio Communications Transceiver Equipment Operating Within the Radio Frequency 1.5 to 30 Megahertz that are manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking.
This ETSO cancels ETSOC31d 'High Frequency (HF) Radio Communications Transmitting Equipment Operating within the Radio Frequency Range 1.530 Megahertz' and ETSO -C32d 'High Frequency (HF) Radio Communications Receiving Equipment Operating within the Radio Frequency Range 1.530 Megahertz'.
2 Procedures
- 2.1 General
Applicable procedures are detailed in CS-ETSO Subpart A.
- 2.2 Specific
None.
3 Technical Conditions
- 3.1 Basic
3.1.1 Minimum Performance Standard
Standards set forth in the Radio Technical Commission for Aeronautics (RTCA) Document DO-163, Minimum Operational Performance Standards - Airborne HF Radio Communications Transmitting and Receiving Equipment Operating within the Radio-Frequency Range of 1.5 to 30 MHz, dated 09/03/1976.
3.1.2 Environmental Standard
See CS-ETSO Subpart A paragraph 2.1.
- 3.1.3 Computer Software
See CS-ETSO Subpart A paragraph 2.2.
- 3.1.4 Electronic Hardware Qualification
See CS-ETSO Subpart A paragraph 2.3.
3.2 Specific
- 3.2.1 Failure Condition Classification
See CS-ETSO Subpart A paragraph 2.4.
Failure of the function defined in paragraph 3.1.1 of this ETSO has been determined to be a minor failure condition.
- 4 Marking
4.1 General Marking as detailed in CS-ETSO Subpart A paragraph 1.2. 4.2 Specific None
5 Availability of Referenced Document
See CS-ETSO Subpart A paragraph 3. [Amdt ETSO/7]
IR · ETSO-C170 — CS-ETSO · ED Decision 2012/009/R · CS-ETSO Easy Access Rules · EAR revision 14 Aug 2026