Maxon SL7000 Quick start guide

SL7000 SERIES HANDHELD
TRANSCEIVER
OPERATIONAL DESCRIPTION

SL7000SERIES HAND HELD
2
TABLE OF CONTENTS
1. SPECIFICATIONS 3
2. DESCRIPTION OF UNIT 5
3. THEORY OF OPERATION 7
4. ALIGNMENT PROCEDURE 9
5. CLONING 21
6. PROGRAMMING 22
7. EXPLODED VIEW 36
8. PARTS LIST 37
9. PCB LAYOUT AND CIRCUIT DIAGRAMS 51
10. BLOCK DIAGRAM 63

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INTRODUCTION
The SL7000 Series of portable radios from Maxon, utilizes the latest technology in its design and
manufacturing. Both the VHF and UHF models are PLL (Phase Lock Loop Synthesizer)
/ microprocessor controlled, and offer 1 or 4 / 5 watts of power with 256 channel capability.
Multiple functions including Scan, CTCSS / DCS signaling and 12.5 & 25 kHz
channel spacing are standard in these fully programmable wide bandwidth handheld units.
The SL7402 offers many advanced features found in more expensive Land Mobile Radios.
1.SPECIFICATIONS
GENERAL
Equipment Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hand portable
Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF/ VHF
Channel Spacings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.5 kHz, 25 kHz programmable
RF Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF 4 / 1 watt/ , VHF 5 / 1 watt
Modulation Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F3E
Audio Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mW (Ext with 8 ohm)
600 mW (Int with 6 ohm)
Intermediate Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46.35 MHz & 450 kHz
Number of Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Frequency Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesizer
Operation Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intermittent
90 : 5 : 5 (Standby: RX: TX)
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rechargeable , li-ion polymer
Battery, 7.4 VDC
TEMPERATURE RANGE
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From - 40° C to + 80° C
Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From - 30° C to + 60° C
CURRENT CONSUMPTION
Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 1 mA
Standby (Muted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 50 mA (Battery Save On)
< 120 mA (Battery Save Off)
Unmuted, 100 % Max AF Power . . . . . . . . . . . . . . . . . . . . . . . . . < 400 mA
Transmit 4 / 5 Watt RF Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2.0 A
BATTERY LIFE (5-5-90% Duty Cycle)
1550 mAh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hrs @ 4 / 5 W
FREQUENCY BANDS RX TX
VHF: 136.000 - 174.000 MHz 136.000 - 174.000 MHz
UHF: 400.000 - 470.000 MHz 400.000 - 470.000 MHz
DIMENSIONS
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (120mm)H x (53 mm)W x (32.5 mm)D
with battery pack
WEIGHT
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290g (with1500mAh li-ion polymer battery)
TRANSMITTER
Carrier Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF VHF
High : 4.0W 5.0W
Low: 1.0W 1.0W
AUDIO FREQUENCY DEVIATION
Without Subaudio Tone Modulation:
25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±5.0 kHz

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12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±2.5 kHz
With Subaudio Tone Modulation @ 10 % Peak Deviation
25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±5.0 kHz
12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. ±2.5 kHz
Audio Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Within +1/-3dB of 6dB octave
ADJACENT CHANNEL POWER
25 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 70 dBc
12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 60 dBc
Conducted Spurious Emission. . . . . . . . . . . . . . . . . . . . . . . . . . . . < -36dBm
Transmitter Audio Distortion (Without CTCSS) . . . . . . . . . . . . < 5% @ 1 kHz
Hum & Noise:
12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 40 dB (with PSOPH)
25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 40 dB (with no PSOPH)
Load Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No osc at ³ 10:1 VSWR all phase angles
and suitable antenna
Peak Deviation @ 1 kHz (Nom. Dev +20dB)
25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. 5.0 kHz
12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Max. 2.5 kHz
RECEIVER
Sensitivity (12dB Sinad) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UHF: < -117 dBm(.31μV)
VHF: < -118 dBm(.28μV)
Amplitude Characteristic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±3 dB
Adjacent Channel Selectivity:
25 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >70 dB
12.5 kHz Channel Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >60 dB
Spurious Response Rejection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB
Intermodulation Response Rejection . . . . . . . . . . . . . . . . . . . . . . 65 dB
Temperature Stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0005% (-30°C to +60°C)
Conducted and Radiated Spurious Emission. . . . . . . . . . . . . . . . Per FCC and IC Rules and Regulations
AF Distortion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 5%
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 dB/octave de-emphasized response in
the range 300 Hz - 3000 Hz
RX Hum & Noise:
25 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 40 dB
12.5 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 40 dB
RX TONE DEMODULATION CHARACTERISTICS
SUBAUDIO TONES - CTCSS
Tone Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Hz to 250.3 Hz
Non-Standard Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz to 260 Hz
Due to continuing research and development the company reserves the right to alter these
specifications without prior notice.

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2. DESCRIPTION OF UNIT
Front Panel
No.
Description
No.
Description

Power On/Off, Volume Control S/W

Up/Down / Select Button

Rotary Selector

LED Indicator

Emergency Button

LCD Display

Monitor Button

Default Programmable Keys

PTT Key
1 Emergency Key
2 Power on / off and Volume Control Switch
Turn the transceiver on by rotating power on / off and volume control switch clockwise and control the volume.
3 Whip Antenna.
Insert the threaded end of the antenna into the connector on top of the radio. Rotate the
antenna clockwise to fasten it.
4 Tx / Rx IndicateLED(3colour’s)
Red
On
Transmitting
programming and cloning write
flashing
Low battery










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Green
On
sub-tone when receiving
programming and cloning read
flashing
Different sub-tone when receiving
Orange
On
Receiving, monitoring cloning
5 External Earphone/MIC and Programming Jack Socket
6 Speaker
7 Tx Output H/L
8 Function
9 Squelch (SQ)
10 Channel Select Button
Select the desired channel with pressing Up and Down button, pressing and holding down morethan 1second
makes the channelmoving fast. Andyou can choose Onor Off infunctionmode
11 PTT(Push To Talk)
Button Hold down totransmit, release to receive.
12 Monitor Button
Press to monitor. Holding down over 2seconds keeps monitoringfunction on, and press shortly again
or PTT Button to stop.
13 Lcd display
No.
Description

CH, Group, Name, Message etc. Display Digit

Scroll Indicator

RSSI Indicator

Monitor Indicator

VOX On/Off Indicator

Scrambler On/Off Indicator

Compander On/Off Indicator

Bell Indicator

Call Indicator

Key Lock On/Off Indicator

Battery Gauge












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3. THEORY OF OPERATION
INTRODUCTION
SL7000 is 256 channel portable FM transceiver constructed with a microprocessor controlled, temperature compensated
Phase Locked Loop (PLL) frequencysynthesizer. The radio features a double conversion receiverand a direct FM
transmitter modulator. A special integrated circuit provides support to sub-audible signaling (CTCSS & DCS) and most of
the receivingpartsare switched off periodicallyin the power savermode to reduce batterycurrent drain during standby.
The BlockDiagram RF and Control Circuit Diagramsfor SL7000 shall be used in associate with thefollowing circuit
description.
CIRCUIT DESCRIPTIONS
1) PHASE-LOCK LOOP (PLL) CIRCUIT
* REFERENCE OSCILLATOR
The reference oscillator in the Frequency Synthesizer IC401, uses the TCXO401 as a stabilized source of
15.3MHz. The reference oscillator frequency drives the divider in the Frequency synthesizer to produce a
comparison frequency.
This comparison frequency is selected by decoding the first three bits of the data input from microcomputer.
* PROGRAMMABLE DIVIDER
The programmable divider in IC401divides the VCO output . It consists of a two-modulus pre-scalar with a 7bit
control register followed by a 11-bit internal programmable divider. The overall division ratio is selected by a single
19-bit word located on the serial data bus.
* PHASE COMPARATOR
The digital-type phase comparator in IC401 compares the divided VCO frequency with the comparison frequency.
It generates a correction voltage that is applied to a low-pass filter consisting of R616,R624,R625, C613,C616,
C619. This voltage is applied to the VCO circuit. The phase comparator also provides the lock detect signal .
* VCO CIRCUIT
The VCO circuits contains a separate RX VCO (Q651,D651,D652) and TX VCO (Q661,D661,D662,D663,D664). The oscillated
signal is amplified at the buffer amplifiers (Q686,Q687)and is then applied to the T/R switch (D696,D697). Then thereceive 1st
LO (Rx) signal is applied to the 1st mixer (Q831)and the transmit (Tx) signal to the amplifier circuit (PA MODULE unit; Q701).
A portion of the signal from the buffer amplifier (Q686) is fed back to the PLL IC) via the doubler circuit (Q681)
as the comparison signal.
2) TRANSMITTER
* MIC AMP CIRCUIT
Voice signal from the microphone are applied to microphone amplifier IC355. IC311 is configured as a low-pass
filter that has a 6dB/oct response between 300Hz and 3kHz and eliminates harmonics above 3 kHz. and The
pre-emphasized audio signal.The filtered AF signals from the IC311 are applied to the FM/PM switch (IC202), and pass
through the low-pass filter (IC201). The filtered signals are applied to the D/A converter (IC203). The output signals from the
D/A converter (IC203) are applied to the modulation circuit (D662).
* VCO AND AMPLIFIER
The VCO signal output is switched by diodes D696 and then amplified by Q701, Q711, Q721 and then fed to
power amplifier Q731.
* POWER AMPLIFIER CIRCUIT
Q731 is provided with approximately 7.4 DC power source.
The power detector circuit (PA MODULE unit; D761,D771) detects the transmit power output level and converts it into DC
voltage.The output voltage is at a minimum level when the antenna impedance is matched with 50 Ωand is increased when it
is mismatched. The detected voltage is applied to the differential amplifier IC791, and the “PA_TUNNING_2” signal from the
D/A converter controlled by the MCU is applied to the other input for reference. When antenna impedance is mismatched, the
detected voltage exceeds the power setting voltage. Then the output voltage of the differential amplifier IC791 controls the
input bias voltage of the drive (PA MODULE unit;Q721,Q731)
The signals from Q731 is supplied through a low-pass filter made up of L201, L202, L203 and C201-C206, C214

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to antenna switch D202 then applied to Antenna Connector.
3) RECEIVER
* ANT SWITCHING CIRCUIT
Signals from antenna connector fed to the antenna switching circuit . In receive mode, D201 is turned off, which
isolates the antenna from the transmitter circuit, so that the incoming signals are fed to the RF amplifier through
L209.
* RF AMPIFIER CIRCUIT
The signal, from the switching circuit, is fed to the RF amplifier Q861 through a band pass filter made up of coil,
varicap diode and capacitor.
* FIRST MIXER CIRCUIT
The amplified signals are fed to Gate 2 of the first mixer Q831 through C851.
First local oscillator signal is supplied to Gate 1 of Q831 from the VCO circuit through C841 to convert the RF
signal into the 46.35MHz first IF signal.
* IF CIRCUIT
The first IF signalfrom Q831 isfed to the matched paircrystal filter, X821,then the signal is amplifiedinQ821. This signal
isfedto IC801, which is composed of the second mixer, limiter amplifier, quadrature detector and activefilter circuit.
The second local oscillator at 45.9 MHz is produced at the PLL circuit by tripling it’s reference frequency 15.3 MHz.
and is fed to the second mixer with the first IF signals to convert into 450kHz second IF signals.
The second IF signals leave through pin 3,and are fed to external ceramic filters X802 then back to IC801 (pin 5)
to be amplified and detected. The detected AF signals are output from pin 9.
* Squelch (mute) CIRCUIT
The squelch circuit switches off the power amplifier when no audio signal is present. The squelch circuit consists of
a 16 kHz band pass filter and a noise detector circuit.
* Speaker Audio Amplifier CIRCUIT
After signal detection and audio filtering, the low level audio is returned to the RF circuit via VR371. This is then
routed to Pin 4 of IC371, (TA7386F), to provide speaker audio. IC371 is enabled by a logic high applied to
Q372which in turn enables Q371, applying power to Pin 2 of IC371.

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4. ALIGNMENT PROCEDURE
Measurement Condition
The following sections describes the alignment procedurefor SL7000LMR transceiver under the following reference
environment conditions:
Temperature : 25 ºC(77 ºC)
Relative Humidity : 65%
Power Supply Voltage : 7.4VDC
Required Test Equipment
The following list of equipmentis recommendedfor use insetting up the radio properly.Please ensure the test equipment
are calibrated according to the manufacturer’s instructions:
EQUIPMENT
GRADE AND RANGE
EQUIPMENT
GRADE AND RANGE
DC power supply
Output voltage: 7.2 V DC
Current capacity : 5 A or more
Audio generator
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
FM deviation meter
Frequency range : DC–800 MHz
Measuring range : 0 to ±10 kHz
Attenuator
Power attenuation : 20 or 30 dB
Capacity : 10W
Frequency counter
Frequency range : 0.1–300 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity : 100 mV or better
Standard signal
generator (SSG)
Frequency range : 100–800 MHz
Output level : 0.1 μV to 32 mV
(–127 to –17 dBm)
Digital multimeter
Input impedance : 10 MΩ/V DC or better
AC millivoltmeter
Measuring range : 10 mV–10 V
RF power meter
Measuring rang : 1–10 W
Frequency range : 100–800 MHz
Impedance : 50 Ω
SWR : Better than 1.2 : 1
Oscilloscope
Frequency rang : DC–20 MHz
Measuring range : 0.01–20 V
Transmitter Circuit Adjustment
-Crystal frequency
On receivingmode, check Crystal output is at 15.3MHz
-Transmitter Frequency
Connect RF Power meterto ANT1, Activate PTT totransmit on 440.025MHz. Check transmitting frequency error is
within +/- 300Hz.
-Transmitter Output Power
Activate PTT totransmit on 440.025MHz, Set program tx_tun2 for4W power output at ANT1. And Set program
tx_tun2 for 1W power output at ANT1 after changing Low power output mode.
-Transmitter Sub-Audible Tone Deviation
Set radioto transmiton 440.025MHz, withCTCSS code 01 (150.4Hz) and no audio modulation. Adjust Set program
tone for 0.5KHz deviation.
-Transmitter Deviation Limit
Set radioto transmiton 440.025MHz, withCTCSS code 01 (150.4Hz) and no audio modulation.
Atthe external microphoneinput, inject 1KHztone at –20dBm. Adjust Set program modfor2.1KHz deviation.
Receiver Circuit Adjustment
-FM Demodulator Adjustment
Set radio to receive on440.025MHz, No CTCSS or DCS. Connect RF Signal Generator to ANT1, Set generator to
440.025MHz at –60dBm (50) output with 1KHz tonemodulation at 1.5KHz Deviation.
-Receiver Squelch Adjustment
After checking the receiver sensitivity, furtherlower the RF Signal Generatoroutput to 8-14dBSINAD and observe
the squelch circuit operates. Adjust Set program sqlc if necessary.

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Test Equipment Setup

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ATE(Auto Test)
* Purpose
-ATE checks automatically whether the transceiver is content with the specification or not .It also adjusts internal
values automatically(Auto Tuning) if the transceiver isn’t content withthe specification.
* System Requirements
-CPU: Intel Pentium2 or higher(Pentium3 or higher recommended)
-Operating System:MicrosoftWindows 98, ME, 2000, XP
-Communication: Serial COM port(9pin)
* Equipment Setup
S.S.G. 2
S.S.G. 1
8920
* S.S.G 1 and S.S.G. 2 is used for testing 2-signal and IMD.
ATE JIG PC
Radio

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* Test Flow Chart
Start ATE
Check all of items
Initialization
Check the next item
PASS Auto Tuning*
PASS BAD
Finish ATE
Stop ATE
* The adjustable items: TX Power, Max Deviation, Sub-audio Tone Deviation, Squelch
The rest of items can’t tune. The result will be BAD if ATE fails to check these items.
GOOD
NO
NO
NO
YES
YES
YES

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* Test Items
Start ATE
TX Power
TX Frequency
MIC Sensitivity
TX Distortion
TX Hum & Noise
Sub-audio Tone Deviation
ACP
RX Distortion
RX Hum & Noise
Audio Sensitivity
Squelch
2-Signal Test*
IMD
Finish ATE
Max Deviation
TX Test
RX Test
* 2-signal test items: ACL, SRA, Image Rejection, Co-channel Rejection, Blocking
Option

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* Auto Tuning
-7000 series ATE Program has afunction which adjusts internal values automaticallyif the transceiverisn’t content
with the specification.Autotuningfunction divides intotwo partsfindingthe suitable values and storing the values to
EEPROM.The transceiver proved tobe a defectiveif ATE program can’t adjust orfind suitablevalues. The
adjustableitemsareasfollows. TXPower, Max Deviation,Sub-audioTone Deviation, Squelch, etc.
* ATE Program Usage
-Starting ATE Program
To run ATEprogram, please double click 7000 series ATE iconin
To start ATE program, Double clickthe SL7402_ATEiconon the desk top or click Start Programs 
SL7402_ATE SL7402_ATE. After startingthe program, themodel selection windowis appeared.
After the model selection, click the OK button. Thenthemain windowwith channelfrequency and ASIC default
value and specificationinformation of corresponding the model will be appeared.

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Please confirm that the audio enable button is off before transceiveron.
Clickthe start button after setting the transceiver toATEmode and connecting the every equipmentcorrectly. To set
the transceiver toATE mode, push and hold the PTT keyand monitor button at the same time andtransceiver on.
At this time, the rotary selector must be 16’th channel position. When the transceiver enters the ATE mode, ‘TEST’
message will be displayed on the LCD for one second.
The windowfor inputting of serial number will be appearedafter clicking of start button.
To start the autotesting, click the ok button after inputting of serial number. If the transceiver is not on or the
connectionis not correct, error message will be displayed.
When theTX part testing isjust started, the message to enable TX audio will be appeared.
When the RX part testing is just started, the message to disable TXaudio will be appeared.

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When all of the test items are passed, askingmessage of the result printing will be appeared
If the current test item isfailed, the test will be stopped and askingmessage of the continuing of the test will be
appeared.

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Including autotuningtest items are TX Power, Max Deviation, Sub-audioTone Deviation, Squelch. If these items
arefailed then enter the auto tuning process automatically. After auto tuning process, the test will becontinued. If
the resultafter autotuning isfail,the transceiver will be a failure.

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-ATE Option
ATE program uses 16 predefined channels. To see the channels information, click ATE Option Frequency
Table on themenu bar.
To see the specification of the current model, clickATEOption Specification onthe menu bar.

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-Save and Load the Result
After thetest you cansave the result of the test byclickingof theFile Save ATEFile on themenu bar. (Normally,
the result data of the test is automatically savedin ‘C:\AutoTest’.)
To open the saved result data, clicktheFile OpenATEFileon the menu bar.
-Print
To print thetest result, click theFile Print.
-ATE Frequency List
SL-7402
Ch. No.
RX Frequency
TX Frequency
Ch. Space
Power
Sub-audio Tone
1
400.025
400.075
N
L
-
2
400.025
400.075
N
H
-
3
400.025
400.075
S
L
-
4
400.025
400.075
S
H
-
5
440.025
440.075
N
L
-
6
440.025
440.075
N
H
-
7
440.025
440.075
S
L
-
8
440.025
440.075
S
H
-
9
469.025
469.075
N
L
-
10
469.025
469.075
N
H
-
11
469.025
469.075
S
L
-
12
469.025
469.075
S
H
-
13
469.025
469.075
N
L
CTCSS: 151.4
14
469.025
469.075
N
L
DCS: 023
15
469.025
469.075
S
L
CTCSS: 151.4
16
469.025
469.075
S
L
DCS: 023

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SL-7102
Ch. No.
RX Frequency
TX Frequency
Ch. Space
Power
Sub-audio Tone
1
136.025
136.075
N
L
-
2
136.025
136.075
N
H
-
3
136.025
136.075
S
L
-
4
136.025
136.075
S
H
-
5
155.025
155.075
N
L
-
6
155.025
155.075
N
H
-
7
155.025
155.075
S
L
-
8
440.025
155.075
S
H
-
9
173.025
173.075
N
L
-
10
173.025
173.075
N
H
-
11
173.025
173.075
S
L
-
12
173.025
173.075
S
H
-
13
173.025
173.075
N
L
CTCSS: 151.4
14
173.025
173.075
N
L
DCS: 023
15
173.025
173.075
S
L
CTCSS: 151.4
16
173.025
173.075
S
L
DCS: 023