Technisonic TDFM 7300 User Manual

AIRBORNE TRANSCEIVER

MODEL TDFM-7300

User’s Manual

July 2008

Technisonic Industries Limited

240 Traders Blvd, Mississauga, Ontario L4Z 1W7

Tel:[phone] Fax:[phone]

www.til.ca

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CAUTION

This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive gloves when handling
printed circuit boards.

WARNING: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this

device may not cause harmful interference and (2) this device must accept any interference received, including
interference that may cause undesired operation.

WARNING For compliance with FCC RF Exposure Requirements, the mobile

transmitter antenna installation shall comply with the following two
conditions:

1. The transmitter antenna gain shall not exceed 3 dBi

2. The transmitter antenna is required to be located outside of a vehicle and kept at a separation

distance of 1 m or more between the transmitter antenna of this device and persons during
operation.

NOTE

: This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference with radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Warning:

Changes or modifications not expressly approved by Technisonic Industries could void
the users authority to operate the equipment.

WARRANTY INFORMATION

The Model TDFM-7300 Transceiver is under warranty for one year from date of purchase. Failed units caused by
defective parts, or workmanship should be returned to:

Technisonic Industries Limited Technisonic Industries Limited
240 Traders Boulevard
Mississauga, Amherst,
Ontario L4Z 1W7 New York

Tel: [phone] Fax: [phone] Tel: [phone]

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Summary of DO-160C Environmental Testing for Technisonic Model TDFM-7300 Transceiver.

Conditions

Temperature and Altitude

Section Description of Conducted Tests

4.0

Equipment tested to categories C4
and D1.

Vibration

8.0

Equipment is tested without shock

mounts to categories B, M and N.
Magnetic Effect
Power Input
Voltage Spike
RF Emission

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 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 STC's 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 STC's 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 factory authorized 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
use.

www.til.ca for the latest issue of available STC=s and letter of authorization for

15.0

16.0

17.0

21.0

Equipment is class Z.

Equipment tested to category B.

Equipment tested to category B.

Equipment tested to category Z.

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SECTION 1

GENERAL DESCRIPTION

1.1 DESCRIPTION

The TDFM-7300 is an airborne low band VHF FM transceiver capable of operating between 30 and 50 MHz.

1.2 TECHNICAL CHARACTERISTICS

Specification
Model Designation: TDFM-7300

Physical Dimensions: Approx. 3.75" X 5.75" X 8.0”

Weight: ~6.0 lbs. (2.7 kg)

Operating Temperature Range: -30°C to +60°C

Power Requirement:

Audio Output Power (including sidetone): 600 mW into 600 ohms

Microphone Inputs: Carbon or Equivalent

Panel Back Lighting:
Voltage: 28 VDC or 5VAC (selectable)
Current: 10 uA

General

Memory Positions: 200
Tuning Increments: 2.5 kHz
Wide Band Channel Spacing: 20 kHz
Operating Mode: FM (F3E)
PL / CTCSS Tones: All Standard Tones RX & TX
DPL / DCS Codes: All Standard Codes RX & TX
DTMF: Transmit Encoder Only

Transmitter section VLO

Frequency range: (MHz) 30 – 50
Power Output: (Watts) 1 or 10 max.
Harmonic Attenuation: (dBc) -65
FM Hum and noise in dB (wideband): -40
Audio Distortion: <5%
Frequency Stability (ppm): ±2.5
Modulation Limiting ± 5 kHz

Characteristic

Voltage: 28.0 Vdc, ± 15%

Current: 500mA minimum / 5A maximum

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