Ritron DTX Plus Series User manual

DTX Plus Series
Ritron RF Telemetry-
The Wireless Connection
Synthesized Telemetry Transceivers
Features
Small, rugged, and dependable
synthesized RF transceivers for
OEM or end user applications. . . . . . . . . . . . . . .

1999-2001 Ritron, Inc. All Rights Reserved
❑ Narrow band (12.5 kHz) or wide band (25 kHz) models
❑ Broadband TX/RX design: 26 MHz VHF, 20 MHz UHF
❑ 6 Watt (VHF) and 3/6/10 Watt (UHF) models
❑ Frequency ranges: 136-162 MHz VHF
148-174 MHz VHF
400-420 MHz UHF
450-470 MHz UHF
❑ Compact size (only 3.6"L x 2.3"W x 1.0"H)
❑ Frequency stability standard @ 1.5 ppm for
fixed applications
❑ Ultra fast TX/RX attack times
❑ Controlled Envelope
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TX keying
❑ Dual Transmit and Receive Audio paths
❑ Meets FCC and IC (Canada) standards**
❑ Programmable Electronic settings and adjustments
❑ Programmable High/Low Output Power
❑ SMD Component Design
❑ Custom frequency ranges available
❑ Made in the USA
The DTX Plus Series is ideal for any system design where high
performance RF specifications, fast TX/RX attack times, and
compact size are a requirement. High specifications permit
integration into systems demanding the utmost performance in
congested frequency environments.
This compact design makes the DTX Plus Series perfect as a retrofit
to RNet and JSLM installations. Direct modulation with low
distortion and low group delay result in a low bit-error-rate (BER)
for enhanced system integrity and reliability. The Swift Lock
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synthesizer-loading algorithm reduces unit turn-on-time to less
than 15ms for high-speed data throughput rates and Controlled
Envelope
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keying reduces adjacent channel “keyclicks” resulting
in spectrum-friendly operation.
Capable of half- and full-channel spacing operation, the DTX Plus
Series can be installed in systems where refarming compliant
narrow band frequencies have been assigned.
If dependability, reliability, and low-cost are important factors in
your RF Telemetry requirements, call RITRON at 800-USA-1-USA.
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DTX PLUS.p65 1/12/02, 8:39 AM1

**IC approval pending as of this printing
Specifications subject to change without notice. Specifications are typical for most applications using good RF propogation and installation practices.
RNet is a trademark of Dataradio,Inc.
TRANSMITTER VHF UHF
Operating Bandwidth 26 MHz 20 MHz
RF Output Power 1-3, 1-6, or 1-10 watts depending upon model
Duty Cycle 5 to 100 % depending upon power and
temperature
RF Load Impedance 50 ohms 50 ohms
Audio Distortion ≤5% max ≤5% max
Modulation Frequency Response (+1/-3 dB ref 1 kHz)
At MIC IN (ref pre-emphasis curve) 50 Hz-2500 Hz 50 Hz-2500 Hz
At AUX IN w/o pre-emphasis 50 Hz-2700 Hz 50 Hz-2700 Hz
Transmitter Attack Time: ≤15 ms ≤15 ms
Spurious and Harmonics: ≤-20 dBm ≤-20 dBm
FM Hum and Noise
12.5 kHz channel operation ≥40 dB ≥40 dB
25 kHz channel operation ≥45 dB ≥45 dB
Current Drain
1 watt ≤1.0 A ≤1.0 A
6 watt ≤2.4 A ≤2.4 A
10 watt version (13.7 VDC supply) N/A ≤2.4 A
RECEIVER
Operating Bandwidth 26 MHz 20 MHz
Sensitivity
(12 SINAD w de-emphasis) ≤0.28 uV ≤0.28 uV
RF Input Impedance 50 ohms 50 ohms
Adjacent Channel Selectivity
+/- 12.5 kHz w/narrow IF ≥60 dB ≥60 dB
+/- 25 kHz w/wide IF ≥70 dB ≥70 dB
Spurious and Image Rejection ≥70 dB ≥70 dB
Intermodulation Rejection ≥70 dB ≥70 dB
FM Hum and Noise
12.5 kHz channel operation ≥40 dB ≥40 dB
25 kHz channel operation ≥45 dB ≥45 dB
Conducted Spurious ≤-57 dBm ≤-57 dBm
Receive Attack Time ≤15 ms ≤15 ms
Noise Squelch Attack Time ≤13 ms ≤13 ms
RSSI Squelch Attack Time ≤5 ms ≤5 ms
Audio Distortion ≤5% ≤5%
Audio Response at AUX OUT
12.5 kHz channel operation 100 Hz to 3.5 kHz 100 Hz to 3.5 kHz
25 kHz channel operation 100 Hz to 5 kHz 100 Hz to 5 kHz
Receive Current Drain ≤80 mA ≤75 mA
DTX Plus Series
Synthesized Telemetry Transceivers

DTX PLUS SPECIFICATIONS
GENERAL VHF UHF
FCC Identifier AIERIT12-150 AIERIT11-450
Number of Channels 8 8
TX/RX Spacing (w/in frequency range) 26 MHz max 20 MHz max
Mode of Operation Simplex or Half Duplex
Channel Increment (Synthesizer step size) 2.5 kHz 5/6.25 kHz
Emissions Bandwidth
Narrow Mode 11 kHz 11 kHz
Wide Mode 16 kHz 16 kHz
Frequency Stability (- 30°to +65°C) 1.5 ppm 1.5 ppm
Supply Voltage (VDC)
3 and 6 watt versions 7.5 or 11-16 w/internal regulator
10 watt version 11.5 to 15
RF Input/Output Connector BNC BNC
Power/Data Interface 15 pin subminiature D type
Operating Temperature -30°to +65°C-30°to +65°C
Maximum Dimensions (L x W x H) 3.6 ″ x 2.3″x 1.0″
Weight 6 oz 6 oz
Pin # Name Description
1 CS0 Channel Select low bit
2 CS1 Channel Select mid bit
3 CS2 Channel Select high bit
4 MIC IN Microphone Input
5 CSN High/Low Power
or Channel 1/2
6 RAW SUPPLY Power Supply Input
7 AUX IN Auxiliary Input
DTX-154/454 INPUT/OUTPUT CONNECTOR
Pin # Name Description
8 AUX OUT Auxiliary Output
9 PGN IN/OUT Programming I/O
10 CTS Clear to Send
11 RX MON Monitor
12 AUDIO OUT Audio PA Output
13 DCD Carrier Detect
14 PTT RTS Push to Talk
15 GND Ground
AVAILABLE MODELS:
DTX Plus Module DTX Plus RF Board
Model Frequency Model Frequency
DTX-154-G 136-162 MHz DTX-154-G-DD 136-162 MHz
DTX-154-O 148-174 MHz DTX-154-O-DD 148-174 MHz
DTX-454-G 400-420 MHz DTX-454-G-DD 400-420 MHz
DTX-454-O 450-470 MHz DTX-454-O-DD 450-470 MHz
Various power and voltage options are available. Please contact the Ritron Sales Department for
your specific requirements.
RF and CTROL BOARD MODULE
www.ritron.com
Ritron, Inc., 505 West Carmel Drive, Car mel, IN 46032 • PH: 317-846-1201 • FAX:[phone] • Email: [email protected]
PN: 14610015 Rev B 01-12
Ritron is a registered trademark of Ritron, Inc.
MADE IN THE
USA
RF BOARD ONLY
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Dependable, reliable, and low-cost
synthesized RF transceivers for
OEM or end user applications. . . . . . . . . . . . . . . . .
Dimensions shown in inches
DTX PLUS.p65 1/12/02, 8:40 AM2