Narco Avionics HT870, Руководство оператора

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4
5.3 Continued
7 50906-0001 The HT870 may be operated in both
(Cont.) receive and transmit modes while it is charging,
but ONLY when a NiCad battery pack has been
installed.
8 50926-0101 6 inch adapter cable which permits the
interfacing of aircraft type headphones and
microphones to the HT870. One end of the cable
connects to the HT870's top panel external
speaker/microphone connector; installed on the
other end of the cable are standard headphone
and microphone jacks. An external push-to-talk
switch must be supplied and installed by the
owner to complete the interface.
9 50908-0001 External speaker/microphone connector only.
Mates to the HT870's top panel external
speaker/microphone connector. This connector is
used when the owner wishes to design and
fabricate his own interface adapter cable (see
item 8).
6.1 HT870 MAINTENANCE INFORMATION
The HT870 is not field repairable. Should a service problem arise, write a
note explaining the problem. Include in the note you name, shipping address,
and type of shipping desired (UPS, Federal Express, etc.) Include the note
with the HT870 and ship prepaid to:
NARCO AVIONICS, INC.
270 Commerce Drive
Fort Washington Industrial Park
Fort Washington, PA 19034
Attn: Factory Service Dept.
7.1 USE OF EXTERNAL MICROPHONE
The use of a good noise cancelling microphone is highly recommended when using
the HT870 in an aircraft environment. The HT870's internal microphone is
rendered inoperative when an external microphone that has been connected to
the top panel speaker/microphone connector and the Internal/External switch is
in the "E" position.