Midland Radio SD174 Users manual

SD-174

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. 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 (19.29 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 7 dBc.

Failure to observe these restrictions will result in exceeding the FCC RF exposure limits.

About your SD-170 Series Data Radio

The SD-170 Series of RF Link Modules utilize the latest technology in their designs and manufacturing. SD-170 models are

Phase Lock Loop Synthesizer (PLL) / microprocessor controlled and offer two (2) watts of power with 16-channel 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-174.

Applications of some of the functions described in this manual are determined by the system you use. Your 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 Dealer.

Specifications

GENERAL

Equipment Type ……………………………………………………… Data radio

Performance Specifications…………………………………………TIA / EIA-603 & AS-4295

Band …………………………………………………………………… UHF

Channel Spacings …………………………………………………… 25 kHz, 12.5 kHz programmable

RF Output Power …………………………………………………… 5 watt / 1 watt programmable

Modulation Type …………………………………………………… F2D, F3E

Intermediate Frequency …………………………………………… 45.1 MHz & 455 kHz

Number of Channels ………………………………………………… 16

Frequency Source …………………………………………………… Synthesizer

Operation Rating …………………………………………………… Intermittent

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

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

9V - 18.0V DC EXTREME

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 ………………………………………… < 1.0 A

Frequency Bands:

RX TX

UHF : U2 450.000 - 490.000 MHz 450.000 - 490.000 MHz

Lock Time ……………………………………………………………… < 10 mS

TX to RX attack time ………………………………………………… < 20 mS (No Power Saving) RX to TX attack time ………………………………………………… < 20 mS

Dimensions…………………………………………………………… (32 mm)H x (58 mm)W x (125 mm)D

Weight ………………………………………………………………… 253 grams

TRANSMITTER Specification

Carrier Power: ………………………………………………………… Nom. Max. Min.

High …………………………………………………………5W < 6W > 4.5W Low …………………………………………………………1W < 1.5W > 0.8W

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

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

Frequency Error ……………………………………………………… ±5.0 ppm Extreme condition for UHF

Frequency Deviation: 25 kHz Channel Spacing…………………………………………… Peak ±5.0, Min. ±3.8

12.5 kHz Channel Spacing………………………………………… Peak ±2.5, Min. ±1.9

Audio Frequency Response………………………………………… Within +1/-3dB of 6dB octave

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

Adjacent Channel Power 25 kHz ………………………………………………………………… < 70 dBc @ Nominal Condition

< 65 dBc @ Extreme Condition

12.5 kHz ……………………………………………………………… < 60 dBc @ Nominal Condition < 55 dBc @ Extreme Condition

Conducted Spurious Emission …………………………………… < -60 dBc

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

Hum & Noise: 25 kHz Channel Spacing …………………………………………… > 40 dB (with no PSOPH)

12.5 kHz Channel Spacing ………………………………………… > 40 dB (with PSOPH)

Modulation Symmetry ……………………………………………… < 10 % Peak Dev @ 1 kHz input

for nominal dev +20dB

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

antenna No destroy at ≥ 20:1 all phase angle

Peak Deviation Range Adjustment @ 1 kHz, Nom. Dev +20dB: 25 kHz Channel Spacing …………………………………………… Min. 3.5, Max. 6.0

12.5 kHz Channel Spacing ………………………………………… Min. 1.5, Max. 4.0

RECEIVER Specification

Sensitivity (12dB Sinad) …………………………………………… Standard B.W < -118 dBm, Narrow B.W <-117 dBm

@ Nom. Condition

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

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

Adjacent Channel Selectivity: 25 kHz Channel Spacing …………………………………………… > 70 dB @ Nom., > 60 dB @ Extreme Condition

12.5 kHz Channel Spacing ………………………………………… > 60 dB @ Nom., > 50 dB @ Extreme Condition

Spurious Response Rejection …………………………………… > 70 dB (100 kHz - 4 GHz)

Image Response ……………………………………………………… > 70 dB

IF Response…………………………………………………………… > 70 dB

Others. ………………………………………………………………… > 70 dB

Intermodulation Response Rejection: ±25 kHz/ 50 kHz ……………………………………………………… > 70 dB ±50 kHz/ 100 kHz …………………………………………………… > 70 dB

Conducted Spurious Emission @ Nominal Conditions: 9 kHz - 1 GHz ………………………………………………………… < -57 dBm 1 GHz - 4 GHz. ………………………………………………………… < -47 dBm

RX Spurious Emissions (Radiated) @ Nominal Conditions 9 kHz - 1 GHz ………………………………………………………… < -57 dBm 1 GHz - 12.75 GHz …………………………………………………… < -47 dBm

AF Distortion. ………………………………………………………… < 5% @ Nom., < 10 % @ Extreme condition

RX Hum & Noise:

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

12.5 kHz CP …………………………………………………………… < 40 dB with PSOPH

Receiver Response Time …………………………………………… < 16 mS

Squelch Opening Range: …………………………………………… RF level for 6 to 14 dB Sinad

Squelch Closing Range (Hysteresis): …………………………… 0 - 6 dB Sinad @ Nominal Condition

Squelch Attack Time: RF Level at Threshold ……………………………………………… < 40 mS RF Level at Threshold + 20 dB …………………………………… < 30 mS

Squelch Decay Time ………………………………………………… 5 mS Min., 20 mS Max.

Antenna Socket Input Match ……………………………………… > 10 dB Return Loss

L.O. Frequency Temperature Stability …………………………… 1st < 5 ppm, 2nd < 15 ppm from -30° to + 60° C

L.O. Frequency Aging Rate ………………………………………… ±2 ppm/ year

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 dealer from which you purchased the radios, or contact us at phone number 1-

816-241-8500 or Fax. 1-816-241-5713.

SD-174 Features

• Synthesized Operation with 16 channel capability

• 1 / 5 Watt programmable 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

Description of radio components

 Antenna connector

 DB-15 connector

 Power connector

 GPS Antenna connector (option)

 LED (Busy / Tx indicator)

Exterior View

CON407

RV401

RV402

RV403

SW401

Digital Board

maxon

Antenna installation

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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