Technisonic Industries Limited TFM-530 User manual

TFM-530
VHF/VHF LO FM AIRBORNE TRANSCEIVER
(P/N’s 031216-1,2,3,4)
Installation and
Operating Instructions
TiL Document No. 03RE317
Revision B Issue 6
MARCH 2007
Technisonic Industries Limited
240 Traders Boulevard, Mississauga, Ontario L4Z 1W7
Tel: [phone] Fax: [phone]
www.til.ca
Copyright by Technisonic Industries Limited. All rights reserved.

IMPORTANT
INFORMATION
As of January 1st, 2013, the FCC will no longer allow transceivers to be delivered to the
USA that are capable of wide band (25kHz) channel spacing in the commercial 2 way
mobile / base sections of the VHF and UHF bands. TDFM-530 transceivers delivered to
the USA after this date will no longer support wide band operation on those bands. The
VLO band not affected.

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REVISION HISTORY
[ 03RE317 ]
REV SECTION
- PAGE - DESCRIPTION DATE
EDITED
BY
Rev N/C MAR 2003
Rev A
Rev B
Rev B
issue 1
issue 2
issue 3
issue 4
Issue 5 Global New document template, added headers /
footers, revision page and warranty page. MAR 2012 FM
Issue 6 Global Fixed footer
Jan 01, 2013 FCC narrowband notice added JAN 2013 SM

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iii
CAUTION ! STATIC SENSITIVE !
This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive
gloves when handling printed circuit boards.
FCC COMPLIANCE INFORMATION
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
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 2.15 dBi
2. The transmitter antenna is required to be located outside of a vehicle and kept at a
separation distance of 37 cm or more between the transmitter antenna of this device and
persons during operation.
WARNING AND DISCLAIMER
This manual is designed to provide information about the TFM-530. Every effort has been made to
make this manual as complete and accurate as possible.
WARNING
Changes or modifications not expressly approved by Technisonic Industries could void the user’s
authority to operate the equipment.
WARRANTY INFORMATION
The Model TFM-530 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
240 Traders Boulevard
Mississauga, Ontario L4Z 1W7
Tel: [phone]
Fax: [phone]

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Summary of DO-160C Environmental Testing
Summary of DO-160C Environmental Testing for Technisonic Model TFM-530, VHF and VHF Low
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 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 STCs and letter of authorization for use.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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TABLE OF CONTENTS
SECTION TITLE PAGE
SECTION 1 GENERAL DESCRIPTION
1.1 INTRODUCTION ............................................................................................. 1-1
1.2 DESCRIPTION ................................................................................................ 1-1
1.3 PURPOSE OF EQUIPMENT ............................................................................... 1-1
1.4 MODEL VARIATION ........................................................................................ 1-1
1.5 TECHNICAL CHARACTERISTICS ...................................................................... 1-2
SECTION 2 OPERATING INSTRUCTIONS
2.1 FEATURES...................................................................................................... 2-1
2.2 OPERATING INSTRUCTIONS ............................................................................ 2-2
2.3 PROGRAMMING INSTRUCTIONS ...................................................................... 2-4
2.4 PRIORITY AND SELECTIVE MEMORY CHANNEL SCANNING ................................ 2-4
2.5 SCANNING FUNCTION .................................................................................... 2-5
2.6 DIRECT FREQUENCY ENTRY MODE .................................................................. 2-5
2.7 RECEIVE FREQUENCY SIMPLEX FUNCTION ....................................................... 2-6
2.8 KEYBOARD LOCKOUT FUNCTION .................................................................... 2-6
2.9 VARIABLE FREQUENCY MODE FUNCTION ........................................................ 2-6
2.10 LED DISPLAY VARIABLE DIMMING MODE ......................................................... 2-6
2.11 90 SECOND TRANSMITTER TIMEOUT FEATURE ................................................ 2-6
2.12 QUICK GUARD PROGRAMMING FEATURE ......................................................... 2-6
2.13 PROGRAMMING CTCSS TONES ....................................................................... 2-7
2.14 PC MEMORY/PROGRAMMING DOWNLOAD CAPABILITY ..................................... 2-8
SECTION 3 INSTALLATION INSTRUCTIONS
3.1 GENERAL ...................................................................................................... 3-1
3.2 EQUIPMENT PACKING LOG ............................................................................. 3-1
3.3 TRANSCEIVER INSTALLATION ......................................................................... 3-1
3.4 INSTALLATION KIT - CONTENTS ..................................................................... 3-1
3.5 ANTENNA INSTALLATION ............................................................................... 3-1
3.6 INSTALLATION - PIN LOCATIONS AND CONNECTIONS ...................................... 3-1
3.7 WIRING INSTRUCTIONS .................................................................................. 3-6
3.7.1 Main Power +28VDC ..................................................................................... 3-6
3.7.2 Main Ground .................................................................................................. 3-6
3.7.3 PTT (Ground Keying) ....................................................................................... 3-6
3.7.4 Front Panel Back Lighting ................................................................................ 3-6
3.7.5 Audio Outputs (600 and 4 Ohms) ..................................................................... 3-6
3.7.6 Audio Output Ground ...................................................................................... 3-6
3.7.7 Mic Signal Input ............................................................................................. 3-6
3.7.8 Memory Up/Memory Down .............................................................................. 3-6
3.7.9 Data Input ..................................................................................................... 3-6
3.8 INTERNAL PROGRAMMING AND GUARD ENABLE/DISABLE JUMPER .................... 3-7
3.9 TRANSMITTER POWER ADJUSTMENTS ............................................................ 3-8

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3.10 TRANSMITTER MICROPHONE LEVEL ADJUSTMENT ........................................... 3-8
3.11 MAIN AND GUARD SQUELCH ADJUSTMENT .................................................... 3-10
3.12 TRANSMITTER DEVIATION ADJUSTMENT ........................................................ 3-10
APPENDIX
APPENDIX – POST INSTALLATION EMI TEST INSTRUCTIONS ............................. A-1
LIST OF FIGURES
FIGURE TITLE PAGE
2-1 Operator's Switches and Controls ..................................................................... 2-3
2-2 TFM-530 Transceiver PC Up/Download Cable - Wiring Diagram ............................ 2-9
3-0 Transceiver mounted view of 15 pin female and 9 pin male connector ................... 3-1
3-1 Outline Drawing for Model TFM-530 Series Transceivers ..................................... 3-2
3-2 Wiring Connections ........................................................................................ 3-4
3-3 Low Pass Filter Outline Drawing & Installation Detail ........................................... 3-5
3-4 Internal Enable/Disable Jumper Locations ........................................................... 3-7
3-5 External Adjustment Access Holes .................................................................... 3-9
3-6 Deviation Adjustment Potentiometer Location .................................................... 3-10
3-7 Deviation Adjustment Potentiometer Location .................................................... 3-12
LIST OF TABLES
TABLE TITLE PAGE
3-1 Pin Locations and Connections for TFM-530 Transceiver ..................................... 3-3

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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SECTION 1 - GENERAL DESCRIPTION
1.1 INTRODUCTION
This publication provides operating and installation information on the TFM-530 Transceiver
manufactured by Technisonic Industries Limited. The unit offers an extended frequency
range with selectable channel spacing and is intended for use (in the U.S.) only by
government agencies or contractors thereto, who have obtained licensing for operation in
the 138-150 MHz portion of the band. If the TFM-530 transceiver is used in CANADA, VHF
operation is restricted to the following sub bands: 138-144, 148-148.99, 149.005-
150.005 and 150.05-174 MHz.
1.2 DESCRIPTION
The TFM-530, Transceiver is a frequency agile, fully synthesized airborne transceiver
capable of operating in the 138 to 174 MHz and 30 to 50 MHz frequency range in 2.5 kHz
increments with either 25 kHz or 12.5 kHz channel spacing. The Transceiver can operate
without restriction on any split frequency pair in either band and also incorporates a two
channel VHF or VHF Low Band synthesized guard receiver.
The TFM-530 Transceiver provides 200 operator accessible memory positions per band,
each of which is capable of storing a transmit frequency, receive frequency, transmit
CTCSS tone or DPL code, receive CTCSS tone or DPL code, an alphanumeric identifier for
each channel and wideband (25 kHz) or narrowband (12.5 kHz) channel spacing
assignment. Operating frequency and other related data are presented on a 96 character,
four line LED matrix display. Data entry and function control are performed via a 12 button
keypad. Preset channels may also be scrolled and scanned through keypad function
activation. Data may also be entered via a Windows 95/98/NT/2000/ME/XP based
computer with the provided software and optional PC Up/download cable, P/N 993390-1.
1.3 PURPOSE OF EQUIPMENT
The TFM-530, VHF/VLO FM Transceiver is designed to provide secondary airborne
communications to facilitate operations which are typically performed in a low altitude
environment. The transmitter sections of this unit have a minimum of 8 watts and do not
exceed 10 watts output power, which may be reduced by a front panel switch to 1 watt, in
order to reduce interference to land based systems.
1.4 MODEL VARIATION
There are four variations of the Model TFM-530 Transceiver. All units offer identical
features and performance except for the following differences:
TFM-530, P/N 031216-1
TFM-530, P/N 031216-1 (5V),
TFM-530, P/N 031216-2
TFM-530, P/N 031216-2 (5V),
TFM-530, P/N 031216-3
TFM-530, P/N 031216-3 (5V),
TFM-530, P/N 031216-4
TFM-530, P/N 031216-4 (5V),
GREEN display, 28 V back lighting and VHF guard.
GREEN display, 5 V back lighting and VHF guard.
GREEN display, 28 V back lighting VLO guard.
GREEN display, 5 V back lighting VLO guard.
RED display, 28 V back lighting and VHF guard.
RED display, 5 V back lighting and VHF guard.
RED display, 28 V back lighting and VLO guard.
RED display, 5 V back lighting and VLO guard.
Both P/N's 031216-1 and 031216-3 are always provided with 28 Volt back lighting unless
a specific request is made for 5 Volt AC operation.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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1.5 TECHNICAL CHARACTERISTICS
Specification Characteristic
GENERAL
Model Designation: TFM-530
Frequency Ranges: 138 to 174 and 30 to 50 MHz
Tuning Increments: 2.5 kHz
Operating Modes: F3E simplex or semi-duplex
Channel Spacing: 25 or 12.5 kHz
Physical Dimensions (including heatsink): Approx. 8.0" X 3.75" X 5.75"
Weight: Approx. 5.1 Lbs (2.3 Kg)
Mounting: Panel Mount via Dzus fasteners
Operating Temperature Range: -40°C to +60°C
Power Requirement:
Voltage:
Current:
28.0 Vdc, ± 15%
Receive - 1.0 A Max.
1 Watt Transmit - 2.0 A Max.
8-10 Watt Transmit - 3.2 A Max.
8-10 Watt Dual Transmit - 5 A Max.
Frequency Selection: 200 memories per band programmed with:
a) Tx Frequency/Rx Frequency
b) Tx/Rx CTCSS tone or DPL code
c) 9 character alpha numeric title
CTCSS squelch/encoder (FM): All CTCSS tones available
DPL digital squelch/encoder (FM): All standard DPL codes
DTMF encoder: All standard DTMF tones
Audio Outputs: 0.5 Watts into 600 ohms
Speaker Output: 2.5 Watts min. into 4 ohms
Back Lighting: 28 Volts (standard) or 5 Volts (specify)
Display Colour: Green (standard) or Red (specify)
1 DPL is a trademark of Motorola Corporation

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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1.5 TECHNICAL CHARACTERISTICS (continued)
VHF RECEIVER
FM Sensitivity at 12 dB SINAD Better than 0.35 μV
AM Sensitivity at 12 dB SINAD Better than 1.50 μV
Adjacent Channel Selectivity -75 dB (25 kHz)
-70 dB (12.5 kHz)
Spurious Attenuation -90 dB
Third Order Intermodulation -70 dB
Image Attenuation -80 dB
FM Acceptance ± 6 kHz
Hum and Noise Better than 45 dB
Audio Distortion less than 5%
Antenna Conducted Emission less than -70 dBm
VLO (Low Band VHF) RECEIVER
Sensitivity at 12 dB SINAD Better than 0.5 μV
Adjacent Channel Selectivity -70 dB (25 kHz)
-60 dB (12.5 kHz)
Spurious Attenuation -80 dB
Third Order Intermodulation -70 dB
Image Attenuation -60 dB
FM Acceptance ± 6 kHz
Hum and Noise Better than 40 dB
Audio Distortion less than 5%
Antenna Conducted Emission less than -70 dBm
GUARD RECEIVER
All specifications identical to VHF or VLO receiver depending which is installed.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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1.5 TECHNICAL CHARACTERISTICS (continued)
VHF and VLO TRANSMITTER
RF Power Output 1 watt or 10 watts
Output Impedance 50 ohms
Maximum FM Deviation
(In narrowband mode)
±5 kHz (25 kHz mode)
±2.5 kHz (12.5kHz mode)
Spurious Attenuation -70 dB below carrier level
Frequency Stability ±2.5 ppm
Microphone Circuit Carbon or equivalent
Sidetone Output
Harmonic Attenuation
0.5W (max) into 600 ohms
-60 dB below carrier level
FM Hum And Noise -40 dB
Audio Input 50 mV at 2.5 kHz into
200 ohms input circuit for
±3.5 kHz deviation, adjust.
FM Audio Distortion < 5%
AM Audio Distortion less than 5%

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
2-1
SECTION 2 – OPERATING INSTRUCTIONS
2.1 FEATURES
The equipment has several important operating features which provide maximum flexibility,
performance and versatility. These features include:
1. VHF and VLO bands that can be configured to be operated independently or as a
single unit.
2. The unit can be set up as a crossband repeater, linking a VHF and VLO frequency in
both directions.
3. 200 memory positions per band which can each be programmed with a transmit and
receive frequency with 25 or 12.5 kHz channel spacing, Tx/Rx CTCSS tones or DPL
codes and a 9-character alphanumeric title.
4. 2 guard channels which can each be programmed with a Rx frequency with 25 or
12.5 kHz channel spacing, CTCSS Tx tone or DPL code and a 9-character
alphanumeric title.
5. Scanning of preprogrammed memories with selective memory scanning, in 5 scan
lists.
6. Priority scan of memory channel 1, if desired.
7. Direct frequency entry mode.
8. Receive frequency simplex function.
9. Switchable RF output power between 1 watt and 8-10 watts.
10. Lockout of keyboard to prevent inadvertent entries.
11. Variable frequency mode to manually scan up and down in 2.5 kHz steps.
12. LED display variable dimming mode.
13. Selectable 90 second Tx time out feature.
14. Quick download of any of the VHF memory positions to the guard memories.
15. PC Memory Upload or Download capability.
16. Configuration Menu - Pressing ENTER, RCL and FUNC together while turning the
radio on will put it into configuration mode. The programming features affected are:
a) DPL - Can be turned on or off with the MUP and MDN (4 and 7) keys. This only
removes the DPL entry step from the programming sequence and does not stop
memories that already have DPL codes from working. This also applies to the
rest of the on/off configurable items.
b) SCAN - Can be disabled. Selecting FUNC and SCAN will do nothing if Scan is
off. The scan list indicator (+) will still display if was previously programmed.
c) Rx CTCSS - Can be turned on or off from the programming sequence. This
affects only the CTCSS tones for receive.
d) FUNC 7 - Can be turned on or off. When off, the main memory channel can not
be dumped into one of the guard channels using function 7.
e) LAST MEM - If set to on, the last memory channel on the display will be what
comes up when the radio is turned on. If set to off, the last memory that
changes were made to will be what comes up when the unit is switched on.
f) DUALMODE - If set to on, the VLO and VHF bands are operated independently
and simultaneously. The radio is shipped with this feature OFF. Dual mode is not
available on a TFM-530 with a low band guard receiver installed.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
2-2
g) SIDETONE - The TX audio circuit becomes active allowing you to adjust the
sidetone level with the VHF volume knob. When the desired level is reached,
press ENTER and this level will be set for both VHF and VLO bands. The factory
setting is 23.
Important: You must set the side tone every time you go through the
configuration menu since the position of the knob is taken as the new level
regardless of whether or not you made an adjustment.
2.2 OPERATING INSTRUCTIONS (See Figure 2.1)
1. Switch power on by turning the main volume clockwise. Depending how the radio is
configured, either the last programmed or last displayed frequencies will appear on
the screen. The transceiver is now in normal operating mode.
2. Adjust the audio level by adjusting the VHF, VLO and GUARD volume knobs.
3. Pressing the squelch defeat button will open all receivers to confirm they work.
4. Read the display. The top line will indicate which VHF memory is selected followed
by a "+" if the memory position is included in a scan list, an alphanumeric message,
and the frequency of the VHF receiver. A small "n" before the frequency indicates
12.5 kHz narrowband channel spacing is in effect on this memory position. In the
receive mode, the frequency is followed by an "RT" if a RX CTCSS tone or RX DPL
code is programmed, or an "RX" if no Receive tone/code is programmed. Similarily,
in the transmit mode either a "TT" or "TX" is shown after the frequency. The
second line shows the same information for the VLO band. The third line indicates
information about the VHF or VLO guard receiver.
5. Only TX CTCSS tones or TX DPL codes may be programmed for the guard receiver.
At the beginning of each line, an LED indicates open squelch.
6. Set the VHF/VLO/GD switch to the desired band.
7. Set the G1/G2 switch to the desired guard channel.
8. Set the HI/LO switch to the desired RF output power.
9. Select the desired memory by using the M.UP and M.DN buttons, or the RCL button
and a three digit number followed by ENTER.
10. To transmit DTMF tones, use the keyboard keys while holding the PTT button on
the microphone. There is a 5 second PTT delay after pressing a key so that you may
press several DTMF keys in sequence without having to hold the PTT. The keyboard
returns to its normal function when the PTT is released.
The display always shows the status of both receivers and the transmitter. The light at the
left of each line indicates which receiver is receiving. The display also indicates the memory
channel in use and the guard channel in use. A "TX" (no TX tone/codes programmed) or
"TT"(either TX tone or code programmed) on the right side of the display indicates which
band is active when transmitting. The transmit frequency is also shown. In the receive
mode the display shows “RX” beside the receive frequency if no RX tone or DPL code is
programmed and “RT” if a CTCSS tone or DPL code is programmed.
While in any programming mode, all receivers continue to function. When the transceiver is
in either of the operating frequency or CTCSS tone/DPL code programming modes and you
must respond to a call, click the microphone PTT once (the radio will not transmit during
this click). This will cause the transceiver to revert back to the normal operating mode and
communications with the caller can proceed in the usual fashion.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
2-3
FIGURE 2.1 Operator’s Switches and Controls

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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2.3 PROGRAMMING INSTRUCTIONS
To program one of the 200 memory channels in one of the bands:
1. Select the desired band on the band select (VHF/VLO/GD) switch. This is required
before any of the programming modes or functions.
2. Press the FUNC key. The display will show the function prompt.
3. Press the PROG key. The display will show the current receive frequency with a
flashing cursor on the first or second digit (The first digit is always a one <1> on
the VHF band).
4. Type in the desired receive frequency. If you type in a frequency which is not a 2.5
kHz step, the nearest valid frequency will be automatically selected.
5. The curser will return to the second digit. You can retype the frequency if you have
made an error or press ENTER to continue.
6. The transmit frequency will be displayed with the curser on the second digit. Follow
the same method as in step 3 and 4.
7. The channel spacing increment of either 25.0 or 12.5 kHz is now displayed. Use the
M.UP and M.DN keys to select the desired channel spacing for the memory position,
then press ENTER.
8. The alpha-numeric title is now displayed. Use the M.UP and M.DN keys to scroll
through the alphabet, numbers and symbols. When the desired character is
displayed, press ENTER to advance to the next character. Press “1" to backspace.
9. Keep repeating step six until the last space is set. The display will show SCAN or
LOCKOUT to enable this memory position as part of a scan list or lock it out of the
scan list. Use the 1,2,3,4,5 and M.DN keys to toggle between these functions (for
details see paragraph 2.5). Once the desired condition has been selected, press
ENTER. The TFM-530’s display will show a "+" beside the memory channel number
if scan is enabled.
10. The display will now show the current memory number. Type in the 3-digit number
of the memory you want to save to (if different from displayed one) and press
ENTER.
11. You now have the option to program the guard frequencies by pressing FUNC or
press ENTER to return to normal operating mode.
12. If you pressed FUNC to program the guards, guard"1" transmit frequency will be
displayed with the flashing curser on the second digit. Enter the frequencies for
guard"1" receive/transmit and guard"2" receive/transmit as in step 3 and 4.
13. The alphanumeric labels for guard"1" and guard"2" are entered the same as in step
7 and 8. When the last character is entered, the radio returns to normal operating
mode.
2.4 PRIORITY SCANNING, SELECTIVE MEMORY CHANNEL SCANNING & SCAN LISTS
Instead of breaking up the 200 channels into blocks for scanning, the TFM-530 has 5 scan
lists per band. Any of the 200 channels can be assigned to any one or more of these 5 scan
lists. This means the channels do not have to be repeated to be in more than one block and
that you are not limited to the number of channels that you can scan at once.
The priority memory channel is always memory position number 1. The priority memory
channel is scanned every other step (i.e. 121314151) to ensure that no incoming messages
are missed. The priority channel can be locked out, which will result in the normal scanning
of the other memory positions.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
2-5
Selective memory scanning allows the user to select which of the 200 memory channels are
to be scanned or locked out when the scan function is invoked. To use this feature, follow
the PROGRAMMING INSTRUCTIONS found in paragraph 2.3. Once the screen displays
SCAN or LOCKOUT, use the 1,2,3,4,5 or M.DN keys to toggle to the desired condition. The
MDN button acts as a clear while pressing one or more of the above numbers adds the
memory to the corresponding scan list or lists. Press ENTER when you are happy with your
selection. In normal operating mode the display will later show a "+" beside the memory
channel number if it has been included in any of the 5 scan lists.
NOTE: Scanning can only be performed on one band (either VHF or VLO) at a time. When
the transceiver is in the single mode (combined VHF and VLO audio) and the scan feature
has been invoked on one band, it will be interrupted when transmitting on the other band.
In the Dual mode, you are able to transmit on the second band without affecting the scan
function on the first.
2.5 SCANNING FUNCTION (5 second talkback delay)
Select the band you wish to scan with the band switch. (you cannot scan the guard) To
start scanning of the memory channels, press FUNC then SCAN and then the number
(1,2,3,4,5) of the desired scan list.
The radio will scan through all the preset memory positions in the selected scan list (see
above paragraph for priority and selective scan features) and will lock on to the first active
channel in the scan sequence. It will remain on the channel until it becomes inactive.
Scanning will resume again after five seconds of inactivity. To exit the scan mode, press the
SCAN key. This will cause the radio to revert back to the normal operating mode.
If while scanning, you hear a call for you:
1. Respond to the call within 5 seconds. When scanning is interrupted by an incoming
signal, the channel will remain open for five seconds before resuming scanning.
2. During communications the five second timer is reset from the last Rx or Tx signal
encountered. The radio resumes scanning once the Rx or Tx activity has ceased for
more than five seconds.
The SCAN key must be pressed to exit the scan mode.
2.6 DIRECT FREQUENCY ENTRY MODE
This mode is designed to facilitate quick frequency selection during emergency and other
operational conditions requiring direct operating frequency selection. This operating mode is
disabled along with the programming mode when the internal disable jumper is set.
1. When the transceiver is in the normal operating mode, press FUNC and the desired
operating frequency i.e. 153.2750.
2. On the VLO band press FUNC and then 1 and the desired frequency i.e. 43.5500.
3. You will then be asked for 12.5 or 25.0 kHz channel spacing. Select with MUP or
MDN and press ENTER.
Please note in the above operation, after FUNC and "1" are entered, the LED display will
show memory channel "000" and then the remaining digits in the desired frequency are
shown as they are entered. No alphanumeric message can be entered in this mode.
Operation on the new frequency occurs in both transmit and receive (simplex only) modes.
If RX or TX CTCSS tones/DPL codes are required they must be programmed in afterwards.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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2.7 RECEIVE FREQUENCY SIMPLEX (TALK AROUND) FUNCTION
The receive frequency simplex function allows you to quickly change the transmit
frequency, when operating on a split pair (repeater/semi-duplex mode), to the receive
frequency to allow direct communications. i.e. If you are transmitting on 152.000 MHz and
receiving 152.555 MHz, select VHF on the band select switch and press FUNC then UP to
transmit on 152.555 MHz. To return to the split pair condition, you must recall the memory
channel again. This is quickly done by pressing M.UP for one step up, then back down one
step with the M.DN key.
2.8 KEYBOARD LOCKOUT FUNCTION
The keyboard can be locked out so that accidental pressing of keys does not change
frequency, etc., unknowingly to the operator. To lock the keyboard, press FUNC then
LOCK. This will disable all keyboard functions (except keyboard unlock) in the receive mode.
The DTMF function during transmit will not be affected. To unlock the keyboard, press and
hold the LOCK key for two seconds until the display indicates "UNLOCK".
2.9 VARIABLE FREQUENCY MODE FUNCTION
To enter variable frequency mode, press RCL, 0,0,0, then ENTER or enter a frequency in the
direct entry mode described above. The memory channel that you were just in will still be
valid but now you can manually adjust the frequency with the M.UP, M.DN, UP and DN
keys. The UP and DN keys will make the frequency count up or down in steps of 2.5 kHz.
The M.UP and M.DN keys will make the frequency count up or down in steps of 1 MHz.
You can not change the label. The frequency in this mode is not stored in memory. To exit
this mode, recall one of the 200 memory channels (i.e. RCL, 0,0,1). Variable frequency
mode is disabled when the internal entry disable jumper is set.
2.10 LED DISPLAY VARIABLE DIMMING MODE
1. With the transceiver in normal operating mode press the UP or DN keys to increase
or decrease the intensity of the LED display.
2. Once maximum intensity of the display is achieved, the UP key no longer functions.
Conversely once minimum intensity is reached, the DN key ceases to function.
2.11 90 SECOND TRANSMITTER TIME OUT FEATURE
A selectable 90 second transmitter time out feature is provided to prevent accidental
continuous transmission in the event of a faulty PTT switch. With this feature enabled the
transceiver will stop transmitting after the PTT is engaged continuously for 90 seconds. The
timer is reset by releasing then re-engaging the PTT switch. Press the FUNC then the M.UP
key. Use the M.UP and M.DN keys to select 90 SEC, which enables the feature, or NONE
which disables it.
2.12 QUICK GUARD PROGRAMMING FEATURE
A quick download of any of the 200 VHF or VLO memory positions (depending on which
type of guard is installed) into either of the guard memory positions can be accomplished.
Select the memory position whose contents you desire to download to a guard memory.
Select either GD1 or GD2 memory channel as desired. Press FUNC then 7. The guard
memory channel will now contain all the same information as the selected memory position.
This feature is disabled when the FUNC 7 mode is turned off in the configuration menu.

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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
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2.13 PROGRAMMING CTCSS TONES/DPL CODES
CTCSS tones (PL tones) or Digital DPL codes can be assigned to each memory channel. The
guard receiver squelch will operate on noise squelch only, but guard 1 and 2 transmit tones
or codes can be programmed. To program a tone/code to a memory channel:
1. Select the desired band on the band select switch.
2. Use the M.UP and M.DN keys to select the memory channel that you want to assign
a CTCSS tone or DPL code.
3. Press the FUNC key then the TONE key. The display will show "RX TONE:" and the
current tone number, as well as the tone frequency in Hz.
4. Use the M.UP and M.DN keys to select the tone number you require. The following
is a list of the available CTCSS tones:
The following is a list of the standard CTCSS tones:
Number Tone Number Tone Number Tone
01 67.0 26 162.2 51 177.3*
02 71.9 27 167.9 52 183.5*
03 74.4 28 173.8 53 189.9*
04 77.0 29 179.9 54 196.6*
05 79.7 30 186.2 55 199.5*
06 82.5 31 192.8 56 206.5*
07 85.4 32 203.5 57 210.7*
08 88.5 33 33.0* 58 218.1*
09 91.5 34 35.4* 59 225.7*
10 94.8 35 36.6* 60 229.1*
11 97.4 36 37.9* 61 233.6*
12 100.0 37 39.6* 62 241.8*
13 103.5 38 44.4* 63 250.3*
14 107.2 39 47.5* 64 No Tone
15 110.9 40 49.2* (carrier squelch only)
16 114.8 41 51.2*
17 118.8 42 53.0*
18 123.0 43 54.9*
19 127.3 44 56.8*
20 131.8 45 58.8*
21 136.5 46 63.0*
22 141.3 47 69.4*
23 146.2 48 159.8*
24 151.4 49 165.5*
25 156.7 50 171.3*
5. Press ENTER. "TX TONE" appears on the display. Repeat step 3.
6. Press ENTER. "RX DPL" appears on the display.
7. Use the keypad to enter the required octal 3 digit DPL (Digital Coded Squelch or
DCS) code. A list of all usable and unique octal 3 digit DPL/DCS codes follows:
(The tones marked with * are
nonstandard tones).

TECHNISONIC INDUSTRIES LIMITED
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TFM-530 Installation & Operating Instructions TiL 03RE317 Rev B Issue 6
2-8
A list of all usable and unique 3 digit DPL/DCS codes follows:
017* 051 116 156 243 266* 346 431 466 612 721
023 053* 122* 162 244 271 351 432 503 624 731
025 054 125 165 245 274* 356* 445 506 627 732
026 065 131 172 246* 306 364 446* 516 631 734
031 071 132 174 251 311 365 452* 523* 632 743
032 072 134 205 252* 315 371 454* 526* 654 754
036* 073 143 212* 255* 325* 411 455* 532 662
043 074 145* 223 261 331 412 462* 546 664
047 114 152 225* 263 332* 413 464 565 703
050* 115 155 226 265 343 423 465 606 712
•indicates GE Digital Coded Squelch (DCS) Code
8. Press ENTER. "TX DPL" appears on the display. Repeat step 7.
9. Press ENTER and the changes will be saved.
Note: When programming the guard tones, you will only be asked for transmit tones as
there is no receive tone or DPL capability on the guard receiver.
2.14 PC MEMORY PROGRAMMING UP/DOWNLOAD CAPABILITY
The TFM-530 transceiver can be programmed by a Windows based personal computer using
Technisonic software supplied on CD with each TFM-530.
Requirements:
1. PC compatible computer with a CD ROM drive, running Windows
95/98/NT/2000/ME/XP.
2. Bench power supply of 28 volts DC.
3. PC download cable, P/N 993390-1 which can be supplied or made from the wiring
diagram at the back of this section.
Connections:
1. With the PC turned off, plug the 25 pin male 'D' connector into a serial port.
2. Plug the 9 pin 'D' connector into the back of the TFM-530 transceiver.
3. Connect the power supply to the TFM-530.
Installing the MultiTDP Program:
The CD supplied with each radio contains software for all of Technisonic’s downloadable
transceivers. Place the CD into your drive and use Windows Explorer to open the MultiTDP
directory on the CD. Double click the MultiTDP.msi file. Follow the onscreen instructions to
install the program onto your hard drive. When the program is installed, it can be run by
selecting Programs from your Start menu, then select Technisonic from the submenu and
finally MultiTDP. If you are updating an existing MultiTDP with a new version, select
‘Remove old version’ when running the new install program. Then rerun the install program
and the new version will be installed.
Using the MultiTDP Program:
With the program running on your computer, a full MultiTDP instruction manual can be
loaded by selecting Documentation in PDF format under the Help menu. Otherwise, to get
started, pull down the File menu and select TFM-530. The program defaults to serial port
com1 but can be set to com2, 3 or 4 under the Com Port menu. The program is now ready
to use. You may want to upload data from the radio and edit channels or start a new data