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Summary of Contents for Ritron DTXM-460-0BN6I-M-FIPS
- Page 1 RITRON, INC. 10-2021 RITRON MODEL: DTXM-460-0BN6I-M-FIPS PROGRAMMABLE FM TRANSCEIVER MODULE USER MANUAL...
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Page 2: Table Of Contents
TABLE OF CONTENTS DTXM MODULES INTRODUCTION GENERAL MODEL IDENTIFICATION FCC/IC REGULATIONS SPECIFICATIONS GENERAL TRANSMITTER RECEIVER DTXM INPUT/OUTPUT CONNECTOR ACCESSORIES OPERATION CHANNEL SELECTION POWER SUPPLY VOLTAGE CURRENT DRAIN vs SUPPLY VOLTAGE DUTY CYCLE/KEY-DOWN LIMITATIONS OPERATING MODES PROGRAMMING PC PROGRAMMING KIT LOADING THE PROGRAMMING SOFTWARE COMPUTER SOFTWARE COPYRIGHTS USING THE PROGRAMMING SOFTWARE PROGRAMMER MENUS... -
Page 3: Introduction
INTRODUCTION GENERAL The RITRON DTXM Plus modules are programmable 2-way radios, which operate either in the VHF or UHF professional FM communications bands as well as a number of other bands in the 220 MHz and 350 MHz region. Each of four channels can be programmed to contain a unique set of operating frequencies. -
Page 4: Fcc/Ic Regulations
F designates the regulator option I=Internal regulator (10-16 VDC operation with regulated RF power amplifier) D=No regulator (7.5 VDC operation) L=RF PA is unregulated, but the remainder of the modem is regulated (10-watt versions) Example: A DTXM-460-OBN6I would be a UHF module for operation between 450 and 470 MHz with a BNC RF connector, narrow (12.5 kHz channel spacing) IF bandwidth, 6 watts maximum output power, and an internal regulator to allow operation from 10 to 15 volts. - Page 5 This 2-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide communications between two or more users over a distance. It uses radio frequency (RF) energy or radio waves to send and receive calls. RF energy is one form of electromagnetic energy. Other forms include, but are not limited to, electric power, sunlight and x-rays.
- Page 6 Ritron accessories supplied or designated for this product. Use of other accessories may not ensure compliance with the FCC’s RF exposure guidelines, and may violate FCC regulations. • For a list of Ritron approved accessories see this user manual, or visit the following website which lists approved accessories: www.ritron,com...
- Page 7 INFORMATIONS DE SENSIBILISATION ET DE CONTRÔLE À L'EXPOSITION AUX ÉNERGIES RF, ET INSTRUCTIONS OPÉRATIONNELLES POUR LES EXIGENCES D'UTILISATION PROFESSIONNELLE DE LA FCC: AVANT D'UTILISER CETTE RADIO À 2 VOIES, LISEZ CES INFORMATIONS IMPORTANTES SUR LA SENSIBILISATION ET LE CONTRÔLE À L'ÉNERGIE RF ET LES INSTRUCTIONS OPÉRATIONNELLES POUR VOUS ASSURER LA CONFORMITÉ...
- Page 8 Tableau 1. Puissance nominale et distance latérale recommandée pour l'antenne quart d'onde, gain unitaire, plan de masse: Puissance nominale de latérale minimale recommandée DTXM-460-0BN6I-M-FIPS Distance radio bidirectionnelle de l'antenne émettrice 6 watts 8 pouces (20 cm)
- Page 9 RF de la FCC et peut enfreindre les réglementations FCC. • Pour une liste des accessoires approuvés par Ritron, consultez ce manuel de l'utilisateur ou visitez le site Web suivant qui répertorie les accessoires approuvés: www.ritron, com...
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Page 10: Specifications
SPECIFICATIONS GENERAL DTXM-460-0BN6I-M-FIPS FCC ID: AIERIT51-46006 IC ID: 1084A-RIT5146006 FCC Rule Parts Industry Canada Rule Parts RSS-119 Frequency Range 450-470 MHz Number of Channels Transmit/Receive Spacing Up to the span of the sub-band Mode of Operation Simplex or Half Duplex... -
Page 11: Transmitter
TRANSMITTER Operating Bandwidth 450-470 MHz RF Output Power(internally adjustable) 6 watt version 1 to 6 watts (2.5 watts min. recommended) Duty Cycle 5 to 100 % depending upon voltage and power level (see chart elsewhere in manual) RF Load Impedance 50 ohms Modulation Distortion (per TIA/EIA 603) 5 % max. -
Page 12: Receiver
RECEIVER Operating Bandwidth 450-470 MHz Sensitivity (12 dB SINAD @ 1 kHz w de-emphasis) 0.25 uV (-119.0 dBm) RF Input Impedance 50 ohms nominal Adjacent Channel Selectivity +/- 12.5 kHz w/ narrow IF 60 dB min. Spurious and Image Rejection IF/2 60 dB min. -
Page 13: Dtxm Input/Output Connector
DTXM INPUT/OUTPUT CONNECTORS DB-15 Connector Pinout Pin Number Name Description Comments Audio/Mic In External Audio Input Wideband input for data. Audio Out Auxiliary Output Wideband output for data. Speaker Audio PA Output Output of audio PA. Channel Select low bit Not used- Firmware disabled RSSI Receive Signal Strength... - Page 14 RAW SUPPLY- Supply voltage input. +10VDC to +16VDC. DISC OUT- Buffered Discriminator Audio with DC Bias. RD- Connect via RITRON DTXP-PCPK PC Programming Kit to computer for programming the unit. TD-Connect via RITRON DTXP-PCPK PC Programming Kit to computer for programming the unit.
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Page 15: Accessories
ACCESSORIES Note: Programming kits are for use by authorized service/maintenance personnel only. The Programming Kit for DTXM Plus radios (via compatible computer) is model DTXM-PCPK-1- M-FIPS. It includes: 1) Programming Software, DTXM-PCPS-1-M-FIPS. 2) DB-9 to DB-15 connector cable with power cable. 3) 9-Pin to USB Adapter, 2147C002. -
Page 16: Operation
OPERATION CHANNEL SELECTION The DTXM module supports four channels. The desired channel is selected from RS-232 communication. Radio defaults to Channel 1 with no connection. POWER SUPPLY VOLTAGE The DTXM-460 unit uses a 7.5 volt RF power module. Two supply voltage options are available for these units depending upon whether the control/loader board has a regulator installed. -
Page 17: Duty Cycle/Key-Down Limitations
Also, a fan option is available from Ritron which can significantly increase the duty cycle, up to 100% at room temperature in some cases. Contact Ritron for additional information on these options and special instructions on attaching heat sinks without compromising the mechanical integrity of the RF PA module. -
Page 18: Operating Modes
AC coupled, but can be modified for DC coupling. This requires replacing a coupling capacitor with a zero-ohm resistor. Contact Ritron for details on this modification. The AUDIO OUT is always de-emphasized, but its gain can be programmed. This output can drive 8- ohm speaker-type loads. -
Page 19: Programming
The end user/system integrator would then bear the responsibility of obtaining certification or operating in a frequency band where certification is not required. Contact RITRON for details. Note: Most modems will connect directly to the DTX without requiring any special modifications or programming. -
Page 20: Computer Software Copyrights
RITRON, Inc. except for the non-exclusive, royalty fee license to use that arises in the sale of a product, or as addressed in a written agreement between RITRON, Inc. and the purchaser of RITRON, Inc. products. - Page 21 FREQUENCY SELECTION 6.5.1 The Frequency page has fields for transmit and receive frequencies of each channel, and for the selection of the operating mode of NXDN Super Narrow, NXDN Narrow, and Analog. Channel information can be entered by clicking on the appropriate box and entering the desired frequency. The frequency chosen must be within the operating range of the radio and on a frequency for which the synthesizer is capable of channeling i.e.
- Page 22 NXDN 6.5.3 The NXDN page programs the settings for NXDN operation for each individual channel. RX RAN- Sets the value of the RAN Code (0-63) for the receiver. RX Group ID- Sets the value of the received Group ID(1-65,519). Squelch Type- Sets the unmute condition of the receiver. Off- The radio will unmute when it has received a digital signal on the programmed frequency.
- Page 23 NXDN (TX)- Disable Mic Pre-Amp- When checked(disabled), TX Audio Gain is reduced by 11dB. Mic Pre-Amp Gain(0-255)- Adds up to 11dB to the TX Audio input. Vocoder Gain- Additional 22dB of gain for the TX Audio level. Analog (TX)- Disable Mic Pre-Amp- When checked(disabled), TX Audio Gain is reduced by 11dB. Mic Pre-Amp Gain(0-255)- Adds up to 11dB to the TX Audio input.
- Page 24 SUMMARY 6.5.7 The summary page summarizes the information about the radio. Model- Ritron Model Number of the radio. Firmware Version- Firmware loaded into the radio. Manufacture Date(Wk/Yr)- Date at which the radio completed te QC Test process, Customer ID- User Programmed ID, up to 35 characters.
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Page 25: Maintenance
The parts within the shield are low failure items; repair or replacement should not be required unless the RF board is mishandled. If failure of a part within the shield is deemed to have occurred, the RF board should be returned to RITRON for service or replacement. -
Page 26: Hardware Options
The AUX OUT output is normally AC coupled through C399. If DC coupling is desired, an 0805 size SMD zero ohm jumper resistor (RITRON P/N 47100000) must be soldered in the location of MR384. (In lieu of a zero ohm jumper, a small piece of wire may be carefully soldered between the pads.) The AUX OUT DC level then becomes nominally 1.67 volts.
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