Technisonic TDFM-7300 VHF Low Band Transceiver User Manual TDFM 7300 User s Manual
Technisonic Industries Limited VHF Low Band Transceiver TDFM 7300 User s Manual
User Manual
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AIRBORNE TRANSCEIVER
MODEL TDFM-7300
User’s Manual
July 2008
Technisonic Industries Limited
240 Traders Blvd, Mississauga, Ontario L4Z 1W7
Tel:(905) 890-2113 Fax:(905) 890-5338
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.
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: (905) 890-2113 Fax: (905) 890-5338 Tel: (716) 691-0669
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.
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Summary of DO-160C Environmental Testing for Technisonic Model TDFM-7300 Transceiver.
Conditions
Section
Description of Conducted Tests
Temperature and Altitude
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
15.0
Equipment is class Z.
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 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 www.til.ca for the latest issue of available STC=s and letter of authorization for
use.
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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 Characteristic
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:
Voltage: 28.0 Vdc, ± 15%
Current: 500mA minimum / 5A maximum
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
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Receiver section VLO
Sensitivity: (uV) 0.35
Selectivity: (dB) -75
Intermodulation: (dB) -70
Spurious Attenuation: (dB) -80
Image attenuation: (dB) -70
Hum and Noise: (dB) -40
Audio Distortion: <5%
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SECTION 2
OPERATING INSTRUCTIONS
2.1 GENERAL
A 5-line display and a keypad and a rotary knob provide the operator control of the unit. The knob has multiple
functions including volume, and channel. The microphone, key line and headphone audio can be wired
separately for each of the 4 bands therefore switching from band to band is performed at an audio panel such
as the Technisonic A71X series.
2.3 POWER SWITCH
To switch the transceiver on, press and hold the knob until the radio powers up. The display will show
TECHNISONIC and the software version installed followed by the model number along with which RF modules
are installed. The display will then show the normal display. To switch off the transceiver at any time, press
and hold the knob for 2 seconds until the display shows OFF then release. If it is desired that the radio turns on
with the radio master in the aircraft, a power jumper may be installed (see installation instructions) such that
the radio is always on. The battery master must be used to turn the radio off with this jumper installed.
2.4 KNOB
The knob is a rotary encoder, which turns endlessly, meaning its actual position is not important. The knob also
has a push button incorporated in it so you can press the knob as well as turn it. The knob will start out as a
volume control. Pressing the knob again will change its function to act as the channel selector. Pressing the
knob again causes the keypad function to change from function keys to number keys. The knob in this mode
acts as a volume control. Another knob press will bring you to the recall mode. In the recall mode, typing in the
channel number will bring you quickly to that channel without scrolling through channels in between. Pressing
the knob again brings it back to the volume control mode. The current function of the knob is shown at the
bottom right of the display.
2.5 SOFT KEYS AND HOME
The transceiver has three soft keys, which assume the function shown on the menu above them on the
display. Menu items include:
PWR - Selecting PWR will allow the power output of the radio to be set to high or low.
SCAN – Selecting SCAN will invoke the radio to scan the channels previously programmed into the
scan list.
FPP – Front Panel Programming mode. Allows you to program channels with TX/RX frequencies,
channel name, tones or codes.
At any time while in one of these functions, you can escape back to the normal mode by pressing the HOME
key.
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2.6 FUNC KEY
Pressing the FUNC key will bring up the first functions menu:
F1-F4 = Channels – Pressing one of these keys will load a preprogrammed channel.
4 = Record – Pressing 4 will cause the transceiver to record the next message received on the band
selected.
5 = Playback – Pressing 5 will play the last message recorded.
Pressing the FUNC key again will bring up the second menu. The following functions are available:
2 = Configuration – Enters the configuration menu (see 2.18 configuration menu). This is the same
menu that can be invoked during boot up.
4 = F1-F4 Programming – Allows you to program a channel and zone to the F1 to F4 keys.
5 = Simplex Repeat – When turned on, the band selected will become a simplex repeater. Simplex
repeat (sometimes called parrot repeat) will record an incoming message and immediately retransmit
the message on the same frequency.
2.6 MUP AND MDN KEYS (Memory Up and Down Keys)
Pressing these keys allow you to scroll up and down through the 200 available channels. The function of the
rotary knob is automatically set to CHAN.
2.8 BRT AND DIM KEYS
Use these keys to dim or brighten the display. The radio powers up at full brightness for normal use but can be
dimmed for night operations.
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SECTION 3
INSTALLATION INSTRUCTIONS
3.1 GENERAL
This section contains information and instructions for the correct installation of the TDFM-7300 Transceiver.
3.2 EQUIPMENT PACKING LOG
Unpack the equipment and check for any damage that may have occurred during transit. Save the original
shipping container for returns due to damage or warranty claims. Check that each item on the packing slip has
been shipped in the container.
3.3 INSTALLATION
The TDFM-7300 Transceiver is designed to be Dzus mounted and should be installed in conjunction with an IN-
7300 installation kit. See Figure 3-1 for an outline drawing of the unit with dimensions to facilitate the
installation.
3.4 INSTALLATION KIT - CONTENTS
The IN-7300 installation kit (P/N 059615-1) consists of:
1. One 25 pin Cannon D mating connector (female) complete with crimp pins and hood.
2. One 9 pin Cannon D mating connector (female) complete with crimp pins and hood.
3. 4 BNC connectors.
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FIGURE 3-1 Outline Drawing for Model TDFM-7300
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3.6 INSTALLATION - PIN LOCATIONS AND CONNECTIONS
J1 - 25 Pin D Connections - Use FEMALE Connector
Pin #
Description
1 Ground
2 Main Power +28 VDC
3 Mic 1
4 Audio 1
5 PTT 1
6 Mic 2
7 Audio 2
8 PTT 2
9 Mic 3
10 Audio 3
11 PTT 3
12 TX Data
13 RX Data
14 Ground
15 Main Power +28 VDC
16 Channel Up
17 Channel Down
18 LH Data
19 SB9600 Busy
20 OPTB+
21 CTS Out
22 Boot DIN
23 RTSBIN
24 RS232DIN
25 Panel Backlighting
TABLE 3-1
J2 - 9 Pin D Connections – Use FEMALE Connector
Pin #
Description
1 Ground
2 Audio Combined
3 PTT 4
4 PTT Combined
5 Audio 4
6 Mic 4
7 Mic Combined
8 On Power
9 Speaker Combined
TABLE 3-2
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P1 - 15 Pin (high density) D Connections – Use FEMALE
Connector
Pin #
Description
1 4 MHz
2 8 MHz
3 10 MHz
4 20 MHz
5 40 MHz
6 Audio 5
7 No connection
8 No connection
9 No connection
10 Tune Indicator
11 Speaker 5
12 Tune Enable
13 Ground
14 PTT5
15 Mic 5
TABLE 3-3
3.7 INSTALLATION - WIRING INSTRUCTIONS
Figure 3-2 shows all required connections and recommended wire sizes for the TDFM-7300 transceiver.
3.8 MAIN GROUND – J1 PINS 1 AND 14
Both pins should be connected to ground. The main ground is internally connected to the chassis.
3.9 MAIN POWER +28 VDC – J1 PINS 2 AND 15
Both pins should be connected to +28 volts DC +/- 15%.
3.10 MIC 1, 2, 3, 4 AND 5 – J1 PINS 3, 6, 9, J2 PIN 6 AND P1 PIN 15
The microphone input signals shall be connected using shielded wire with the shield connected to ground
(pin 1 or 14). It is recommended for best results to leave the other end of the shield floating to prevent
ground currents unless you are connecting to an audio panel with floating hi and lo inputs (like the
Technisonic A710 or A711 series) in which case the shield must be connected to the lo input.
3.11 AUDIO 1, 2, 3, 4, 5 AND COMBINED – J1 PINS 4, 7, 10 J2 PINS 5, 2 AND P1 PIN 6
Audio outputs are 600 ohms impedance against ground. The output power is 600 mW maximum.
Unused outputs do not have to be terminated and should be left unconnected.
3.12 PTT 1, 2, 3, 4, 5 AND COMBINED – J1 PINS 5, 8, 11, J2 PINS 3, 4 AND P1 PIN 14
The PTT lines should be floating when in receive and grounded for transmit. The input has a pull up resistor
to 5 volts. Connecting an audio panel that wishes to see more, may result in no receive audio. Connect a
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1N4006 diode in series with the cathode towards the audio panel in this case.
3.13 TX DATA AND RX DATA – J1 PINS 12 AND 13
These pins provide RS-232 serial communications for use with the RC-7300 remote control head if
installed. Consult the RC-7300 installation manual for details.
3.14 CHANNEL UP AND CHANNEL DOWN – J1 PINS 16 AND 17
These pins can be used to scroll up and down through the zone/channel/mode/talk group selections for the
band currently displayed on the screen. The inputs normally floating are grounded to activate. Two push
buttons or a center off, SPDT, spring loaded toggle switch are typically used on these inputs. If both pins
are grounded simultaneously, the next band will be selected.
3.15 LH DATA, SB9600 BUSY, OPTB+, CTS OUT, BOOT DIN, RTSBIN AND RS232DIN – J1 PINS 18
THROUGH 24
These pins are used for programming or updating the transceiver using Motorola Customer Programming
Software (CPS™) or encryption key loading and are left unconnected. They may be used to update the radio
once it is removed from the aircraft. These pins are also brought out to the TDFM-7300’s front panel mini-
DIN connector to allow programming in the aircraft.
3.16 PANEL BACKLIGHTING – J1 PIN 25
Connect to aircraft panel dimming bus. The transceiver is capable of supporting 28 VDC or 5 VAC
backlighting circuits. Select 28 volts DC or 5 volts AC via the configuration menu (see section 2.18). No
damage will occur if the wrong setting is made.
3.17 ANTENNA TUNER CONTROL LINES – P1 PINS 1, 2, 3, 4, 5, 6, 10 AND 12
These connections are to control an antenna tuner system such as the Foxtronics FLX-3050B. Connect
according to the manufacturer’s instructions. In the case of the FLX-3050B, the tune indicator which is
normally connected to a light, can be connected to pin 10 so that the tuning indication will show on the
TDFM-7300 display.
3.18 POWER JUMPER
The radio must be turned on manually each time the avionics bus is switched on. If it is
desired that the radio comes on with the radio master in the aircraft, remove the right
side panel from the radio and install the supplied 0.1” jumper across JP1 (two pins) near
the rear of the radio on the right side of the MCU board. The radio is shipped with the
jumper on only one of the two pins. If you attempt to turn off the radio with the jumper
installed across the two pins, it will just come back on again in 5 seconds.