Midland Radio SD161 Users manual

SD-161 / SD-164

Data Radio

User Instruction Manual

FCC RF Exposure Compliance Requirements

The Federal Communications Commission (FCC), with its action
in General Docket 93-62, November 7, 1997, has adopted a
safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated
equipment. Topaz3 / Maxon subscribes to the same safety standard for the
use of its products. Proper operation of this radio will result in
user exposure far below the Occupational Safety and Health Act (OSHA) and Federal Communications Commission limits.

Power listed is conducted. This device must not exceed a maximum transmitting duty factor of 50%. The antenna(s) used
for this transmitter must be installed to provide a separation distance of at least 49cm (19 inches) from all persons, must not
be co-located or operating in conjunction with any other antenna or transmitter, and must not exceed a gain of 5 dBd for
SD-161 and 7 dBd for SD-164. Failure to observe these restrictions will result in exceeding the FCC RF exposure limits.

About your SD-160 Series Data Radio

The SD-160 Series of RF Link Modules from Topaz3 utilize the latest technology in their designs and manufacturing. SD­160 models are Phase Lock Loop Synthesizer (PLL) / microprocessor controlled and offer two (2) watts of power with 16­channel capability. Multiple functions including 1200 to 9600 baud rates, AC and/or DC audio coupling, GMSK, FFSK and
FSK modulation are standard in these fully programmable RF Link Module units. Programmable sub-audio squelch system
(CTCSS & DCS) and two-tone squelch system are added to the signal level detect squelch system (RSSI). GPS Data
handling is provided to interface and control an internal GPS receiver.

To assure satisfaction from the radio, we urge you to thoroughly read the operation and function information in this manual
before operating your SD-161/SD-164.

Applications of some of the functions described in this manual are determined by the system you use. Your Topaz3 dealer
will program your radio so that you have the greatest number of functions possible relative to your needs.

Should you have questions regarding the operation of the radio, please consult your Topaz3 Dealer.

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Specifications

GENERAL

Equipment Type
Performance Specifications
Band …………………………………………………………………… VHF(SD-161) / UHF(SD-164)
Channel Spacings …………………………………………………… 25 kHz, 12.5 kHz programmable
RF Output Power …………………………………………………… 2 watt only
Modulation Type …………………………………………………… F2D, F3E
Intermediate Frequency …………………………………………… 45.1 MHz & 455 kHz
Number of Channels ………………………………………………… 16
Frequency Source
Operation Rating …………………………………………………… Intermittent

Power Supply ………………………………………………………… Ext. Power Supply(12 VDC Nominal)

Temperature Range
Storage ………………………………………………………………… from - 40°C to + 80°C
Operating ……………………………………………………………… from - 30°C to + 60°C

Current Consumption
Standby (Muted) ……………………………………………………… < 65 mA
Transmit 2 Watt RF power

Frequency Bands:

Lock Time ……………………………………………………………… < 10 mS
TX to RX attack time

RX to TX attack time ………………………………………………… < 20 mS
Dimensions…………………………………………………………… (32 mm)H x (58 mm)W x (125 mm)D
Weight ………………………………………………………………… 253 grams

……………………………………………………… Data radio

…………………………………………TIA / EIA-603

…………………………………………………… Synthesizer

90 : 5 : 5 (Standby: RX: TX)

7.2V - 18.0V DC EXTREME

………………………………………… < 1.0 A

RX TX
VHF : V2 148.000 - 174.000 MHz 148.000 - 174.000 MHz
UHF : U2 450.000 - 490.000 MHz 450.000 - 490.000 MHz

………………………………………………… < 20 mS (No Power Saving)

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TRANSMITTER Specification

Carrier Power:

Sustained Transmission …………………………………………… Nominal conditions

Frequency Error

Frequency Deviation:
25 kHz Channel Spacing

12.5 kHz Channel Spacing………………………………………… Peak ±2.5, Min. ±1.9
Audio Frequency Response………………………………………… Within +1/-3dB of 6dB octave

Adjacent Channel Power
25 kHz

……………………………………………… ………………… < 70 dBc @ Nominal Condition

12.5 kHz

Conducted Spurious Emission …………………………………… < -60 dBc
Modulation Sensitivity
Hum & Noise:

25 kHz Channel Spacing

12.5 kHz Channel Spacing ………………………………………… > 40 dB (with PSOPH)
Modulation Symmetry ……………………………………………… < 10 % Peak Dev @ 1 kHz input

Load Stability

Peak Deviation Range Adjustment @ 1 kHz, Nom. Dev +20dB:
25 kHz Channel Spacing

12.5 kHz Channel Spacing

…………………………………………………………

……………………………………………………… < 0.75 kHz Nominal condition for UHF

…………………………………………… Peak ±5.0, Min. ±3.8

……………………………………………………………… < 60 dBc @ Nominal Condition

……………………………………………… 100mV RMS @ 60 % Peak Dev.

…………………………………………… > 40 dB (with no PSOPH)

………………………………………………………… No osc at ≥ 10:1 VSWR all phase angles and suitable

…………………………………………… Min. 3.5, Max. 6.0

………………………………………… Min. 1.5, Max. 4.0

Nom. Max. Min.

2W < 3W > 1.5W

Time : 5 10 30 Sec.
Power: >90% >85% >80%

±5.0 ppm Extreme condition for UHF

@ 300 Hz to 2.55 kHz for 12.5 kHz C.S.
@ 300 Hz to 3.0 kHz for 25 kHz C.S.

< 65 dBc @ Extreme Condition

< 55 dBc @ Extreme Condition

for nominal dev +20dB

antenna
No destroy at ≥ 20:1 all phase angle

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RECEIVER Specification

Sensitivity (12dB Sinad)

Amplitude Characteristic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±3 dB

Adjacent Channel Selectivity:
25 kHz Channel Spacing …………………………………………… > 65 dB @ Nom., > 55 dB @ Extreme Condition

12.5 kHz Channel Spacing ………………………………………… > 60 dB @ Nom., > 50 dB @ Extreme Condition
Spurious Response Rejection …………………………………… > 60 dB (100 kHz - 4 GHz)
Image Response ……………………………………………………… > 60
IF Response…………………………………………………………… > 60
Others. ………………………………………………………………… > 60
Intermodulation Response Rejection:

±25 kHz/ 50 kHz …………………………………………… ………… 60 dB
±50 kHz/ 100 kHz

Conducted Spurious Emission @ Nominal Conditions:
9 kHz - 1 GHz ………………………………………………………… < -57 dBm
1 GHz - 4 GHz.

RX Spurious Emissions (Radiated) @ Nominal Conditions
9 kHz - 1 GHz ………………………………………………………… < -57 dBm
1 GHz - 12.75 GHz

AF Distortion. ………………………………………………………… < 5% @ Nom., < 10 % @ Extreme condition
RX Hum & Noise:

25.0 kHz CP …………………………………………………………… < 40 dB No PSOPH

12.5 kHz CP
Receiver Response Time …………………………………………… < 16 mS
Squelch Opening Range:
Squelch Closing Range (Hysteresis):
Squelch Attack Time:

RF Level at Threshold ……………………………………………… < 40 mS
RF Level at Threshold + 20 dB …………………………………… < 30 mS

Squelch Decay Time
Antenna Socket Input Match
L.O. Frequency Temperature Stability
L.O. Frequency Aging Rate ………………………………………… ±2 ppm/ year

………………………………………………………… < -47 dBm

…………………………………………………………… < 40 dB with PSOPH

…………………………………………… Standard B.W < -118 dBm, Narrow B.W <-117 dBm

@ Nom. Condition
Standard B.W < -115 dBm, Narrow B.W <-114 dBm

@ Extreme Condition

…………………………………………………… 60 dB

…………………………………………………… < -47 dBm

…………………………………………… RF level for 6 to 14 dB Sinad

…………………………… 0 - 6 dB Sinad @ Nominal Condition

………………………………………………… 5 mS Min., 20 mS Max.

……………………………………… > 10 dB Return Loss

…………………………… 1st < 5 ppm, 2nd < 15 ppm from -30° to + 60° C

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Unpacking information

Remove and carefully inspect the contents of your package(s) for the following items:

Radio
Fused power cord
User manual

If any items are missing, please contact the Topaz3 dealer from which you purchased the radios, or contact Topaz3 at
phone number 1-800-821-7848 or local 1-816-891-6320.

SD-161 / SD-164 Features

• Synthesized Operation with 16 channel capability

• 2 Watt output power

• Programmable 12.5 / 25KHz channel spacing

• Channel scan

• Busy channel lockout

• Tx Time-out timer

• Power Save

• Marked Idle

• Tx Delay

• Data transmission and reception through GMSK modem

• Data transmission and reception through FFSK modem

• Support transmission of global position data

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Description of radio components

! Antenna connector
" DB-15 connector
# Power connector
$ GPS Antenna connector (option)
% LED (Busy / Tx indicator)

Exterior View

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maxon

Antenna installation

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CON407

RV401

RV402

RV403

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SW401

Digital Board

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Fasten the antenna to the radio by turning the antenna cable clockwise into the receptacle on left of radio when looking at
front of radio.

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