User's Manual

TFM-550 Installation & Operating Instructions TiL 99RE262 Rev A Issue 8
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CERTIFICATION SUMMARY
Summary of DO-160C Environmental Testing for Technisonic Model TFM-550, Low-band VHF, High-
band VHF and UHF Transceiver:
Conditions Section Description of Conducted Tests
Temperature and Altitude 4.0 Equipment tested to categories B2 and D1.
Vibration 8.0 Equipment is tested without shock mounts to
categories B, M and N.
Magnetic Effect 15.0 Equipment is class A.
Power Input 16.0 Equipment tested to category B.
Voltage Spike 17.0 Equipment tested to category B.
RF Emission 21.0 Equipment tested to category Z.
INSTALLATION APPROVAL NOTE
Presently, no TSO standard exists for airborne FM transceivers. To make it easier for installation
agencies to provide their customers with an approved installation supported by an effective Airworthiness
Approval, Technisonic has secured Supplemental Type Certificate (STC) Approvals (both US and
Canadian) on its Airborne FM products for many helicopters currently being delivered in the US and
Canada as well as a number of single engine fixed wing aircraft. The above referenced DO-160C test
data is also on file and available from Technisonic to support approval requirements in airframes for which
Technisonic does not possess an STC.
Approved aircraft types are listed in the attachments to the formal STC documents. These STCs are the
exclusive property of Technisonic and require the written authority of Technisonic for their use. To assist
Factory Authorized Technisonic Dealers in the certification process, we have placed copies of our
Canadian and US STCs on our web site along with a letter of authorization for their use. These
documents may be downloaded and used as support for the technical submission to FAA or Transport
Canada. Only authorized factory dealers/installers are permitted to download and make use of these
documents on behalf of their customers (end users) in support of regulatory agency approval. Please
refer to the Technisonic web site www.til.ca for the latest issue of available STCs and letter of
authorization for use.