JRC transmitter signal acquisition circuit

Abstract

The utility model relates to a JRC transmitter signal acquisition circuit which comprises two pulse signal reverse comparison circuits, an analog quantity transmitting circuit, a level processing circuit, a state display circuit and a protection isolation circuit. The circuit is used for processing analog quantity and digital quantity signals collected from a transmitter for signal collection, then inputting the signals into a PLC, processing related control instructions received from an upper computer to the PLC in the later period, inputting the signals into the transmitter for related operation, avoiding manual misjudgment, and improving the reliability of the system. And technical support is provided for subsequent monitoring alarm and state prompt.

Description

Technical Field

[0001] This patent application belongs to the technical field of transmitter signal acquisition, and more specifically, relates to a JRC transmitter signal acquisition circuit. Background Art

[0002] In view of the current situation that there are many types of existing transmitters, complex output frequency channels, and different working hours, the existing shortwave transmitter stations adopt the conventional control method of manual power on and off, manual patrol frequency change, and meter reading and recording. This method has the probability of human errors such as missed broadcasts and misbroadcasts, and the transmitter cannot be discovered in time when a fault occurs. In daily duty work, when a transmitter fault alarm occurs, due to the high noise in the machine room, the patrol frequency time cannot be fully covered, and other factors, the duty personnel sometimes cannot immediately know and deal with it, resulting in communication interruption. Therefore, it is necessary to design a JRC transmitter signal acquisition circuit, and use the acquisition circuit to produce a transmitter fault remote monitoring system based on the Internet of Things, collect and monitor the transmitter operating parameters and fault signals, display the relevant data on the duty desk monitoring interface, and push the real-time transmitter operation status and fault alarm information to designated staff through the Internet of Things cloud platform. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a JRC transmitter signal acquisition circuit, which can collect and monitor the transmitter operation parameters and fault signals, and provide technical support for subsequent monitoring alarms and status prompts.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A JRC transmitter signal acquisition circuit is used to collect analog signals and digital signals of a JRC transmitter, comprising a two-way pulse signal reverse comparison circuit, an analog quantity transmission circuit, a level processing circuit, a state display circuit, and a protection isolation circuit, wherein the two-way pulse signal reverse comparison circuit, the analog quantity transmission circuit, the state display circuit, and the protection isolation circuit are all connected to the level processing circuit;

[0006] The two-way pulse signal reverse comparison circuit includes a comparison chip U3; the analog quantity transmission circuit includes resistors R3 to R6, terminal P1, and terminals P3 to P4; the level processing circuit includes a trigger chip U1;

[0007] One end of the resistor R6 is connected to pin 3 of the terminal P1, and the other end is connected to pin 3 (+IN pin) of the comparison chip U3. Pin 2 (-IN pin) of the comparison chip U3 is connected to pin 1 of the terminal P1. Pin 1 (OUT pin) of the comparison chip U3 is connected to the resistor R3 and pin 3 of the trigger chip U1. Pin 5 of the comparison chip U3 is connected to the resistor R5, and pin 6 is connected to pin 2 of the terminal P1. Pin 7 of the comparison chip U3 is connected to the resistor R4 and pin 11 of the trigger chip U1. Pin 4 of the comparison chip U3 is grounded. The other ends of the resistors R3 to R5 are all connected to pin 3 of the terminal P1, and pin 8 of the comparison chip U3 is also connected to pin 3 of the terminal P1.

[0008] Terminals P3 to P4 are all connected to the protection isolation circuit;

[0009] Pins 1 and 13 of the trigger chip U1 are connected to the protection isolation circuit, pins 2 and 12 are connected to the status display circuit, pins 4 and 10 are connected to terminal P4, pins 6 and 8 are grounded, and pins 5, 9, and 14 of the trigger chip U1 are all connected to pin 3 of terminal P1.

[0010] Furthermore, the status display circuit includes a light-emitting diode LED1 and a light-emitting diode LED2. Pin 2 of the trigger chip U1 is connected to the light-emitting diode LED1 and the resistor R1 in sequence. Pin 12 of the trigger chip U1 is connected to the light-emitting diode LED2 and the resistor R2 in sequence. After the resistors R1 and R2 are short-circuited, they are connected to pin 3 of the terminal P1.

[0011] Furthermore, the protection isolation circuit is a photocoupler U2, and pins 1 and 3 of the photocoupler U2 are respectively connected to pins 1 and 13 of the trigger chip U1, and pins 2 and 4 of the photocoupler U2 are grounded; pins 8 and 6 of the photocoupler U2 are both connected to pin 1 of terminal P4, and pins 7 and 5 of the photocoupler U2 are correspondingly connected to pins 1 and 2 of terminal P3; pin 2 of terminal P4 is connected to pins 4 and 10 of the trigger chip U1.

[0012] Furthermore, the comparison chip U3 is NJM2904M, the trigger chip U1 is TC4013BP, and the model of the photocoupler U2 is ORPC-827B.

[0013] Furthermore, terminal P1 is WJ2EDGK, and terminals P3-P4 are WJ500V.

[0014] Further, the terminal P1 is electrically connected to the CFR-87-71 noise filter board of the exciter (excitation module) in the JRC transmitter, and the analog signals in the CFR-87-71 noise filter board include but are not limited to: transmitter output power Po, forward voltage signal Vf and reverse voltage signal Vr for calculating the transmission standing wave ratio, and the above analog signals are connected to the terminal P1 of the analog transmission circuit;

[0015] The digital signals of the JRC transmitter include but are not limited to: one or more of the transmitter power amplifier operation on PA ON, power supply overvoltage PSOV, power supply overcurrent PSOC, power supply fuse PS FUSE, transmitter power on PWR ON, and power amplifier alarm PA ALM. The above digital signals are connected to the trigger chip U1 of the level processing circuit.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are:

[0017] This device has a simple circuit, low production cost, and easy-to-replace parts. It can be used to collect and monitor the transmitter's operating parameters and fault signals in real time, reduce or even eliminate the workload of meter reading and recording, avoid the probability of human errors such as missed broadcasts and misbroadcasts, and provide technical support for the subsequent "displaying relevant data on the duty desk monitoring interface, and pushing real-time transmitter operating status and fault alarm information to designated staff through the Internet of Things cloud platform."

[0018] Using this circuit as a basis and combining it with actual practice, the remote monitoring of the shortwave transmitter can be realized, providing technical support for the construction of smart radio stations; relevant staff can selectively receive the alarm information pushed by the transmitter in real time, discover problems in time, and ensure real-time and smooth communication; the automation and intelligence level of the transmission system operation is improved, and the reliability and stability of the shortwave transmitter signal transmission work is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a circuit diagram of the utility model.

[0020] Figure 2 This is a fault signal acquisition diagram of the JRC transmitter of the present utility model.

[0021] Figure 3 The utility model is a JRC transmitter fault status monitoring system.

[0022] Figure 4 The utility model is a block diagram of the JRC transmitter fault status monitoring system.

[0023] Figure 5 This is an Internet of Things network diagram of the JRC transmitter fault status monitoring system composed of the present utility model. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the embodiments.

[0025] A JRC transmitter signal acquisition circuit, such as Figure 1, used to collect analog signals and digital signals of JRC transmitter, including two-way pulse signal reverse comparison circuit, analog quantity transmission circuit, level processing circuit, status display circuit, protection isolation circuit, two-way pulse signal reverse comparison circuit, analog quantity transmission circuit, status display circuit, protection isolation circuit are all connected with the level processing circuit.

[0026] The two-way pulse signal reverse comparison circuit includes a comparison chip U3; the analog quantity transmission circuit includes resistors R3 to R6, terminal P1, and terminals P3 to P4; the level processing circuit includes a trigger chip U1;

[0027] One end of the resistor R6 is connected to pin 3 of the terminal P1, and the other end is connected to pin 3 (+IN pin) of the comparison chip U3. Pin 2 (-IN pin) of the comparison chip U3 is connected to pin 1 of the terminal P1. Pin 1 (OUT pin) of the comparison chip U3 is connected to the resistor R3 and pin 3 of the trigger chip U1. Pin 5 of the comparison chip U3 is connected to the resistor R5, and pin 6 is connected to pin 2 of the terminal P1. Pin 7 of the comparison chip U3 is connected to the resistor R4 and pin 11 of the trigger chip U1. Pin 4 of the comparison chip U3 is grounded. The other ends of the resistors R3 to R5 are all connected to pin 3 of the terminal P1, and pin 8 of the comparison chip U3 is also connected to pin 3 of the terminal P1.

[0028] Terminals P3 to P4 are all connected to the protection isolation circuit;

[0029] Pins 1 and 13 of the trigger chip U1 are connected to the protection isolation circuit, pins 2 and 12 are connected to the status display circuit, pins 4 and 10 are connected to terminal P4, pins 6 and 8 are grounded, and pins 5, 9, and 14 of the trigger chip U1 are all connected to pin 3 of terminal P1.

[0030] Preferably, the status display circuit includes a light-emitting diode LED1 and a light-emitting diode LED2, pin 2 of the trigger chip U1 is connected to the light-emitting diode LED1 and the resistor R1 in sequence, pin 12 of the trigger chip U1 is connected to the light-emitting diode LED2 and the resistor R2 in sequence, and after the resistors R1 and R2 are short-circuited, they are connected to pin 3 of the terminal P1.

[0031] In practice, the protection isolation circuit is a photocoupler U2, and pins 1 and 3 of the photocoupler U2 are connected to pins 1 and 13 of the trigger chip U1 respectively, and pins 2 and 4 of the photocoupler U2 are grounded; pins 8 and 6 of the photocoupler U2 are connected to pin 1 of terminal P4, and pins 7 and 5 of the photocoupler U2 are connected to pins 1 and 2 of terminal P3 respectively; pin 2 of terminal P4 is connected to pins 4 and 10 of the trigger chip U1.

[0032] In terms of selection, the comparison chip U3 is NJM2904M, the trigger chip U1 is TC4013BP, the photocoupler U2 is ORPC-827B, the terminal P1 is WJ2EDGK, and the terminals P3~P4 are WJ500V.

[0033] Terminal P1 is electrically connected to the CFR-87-71 noise filter board (such as CFR-87-714 noise filter board) of the exciter / excitation module in the JRC transmitter, such as Figure 2 The analog signals in the noise filter board of the exciter CFR-87-71 include but are not limited to: transmitter output power Po, forward voltage signal Vf and reverse voltage signal Vr for calculating the transmitter standing wave ratio. The above analog signals are connected to terminal P1 of the analog transmitter circuit and connected to terminal JIII of CFR-87-71 through terminal P1.

[0034] The digital signals of the JRC transmitter include but are not limited to: one or more of the following: transmitter power amplifier operation on PA ON, power supply overvoltage PSOV, power supply overcurrent PSOC, power supply fuse PS FUSE, transmitter power on PWR ON, and power amplifier alarm PA ALM. The above digital signals are led out through the JII2 terminal, JII3 terminal, and JII4 terminal of CFR-87-71, and then directly connected to the trigger chip U1. The digital signal is a pulse signal that changes from 12V to 0V. Every two digital pulse signals are connected to a trigger chip U1.

[0035] In actual production, the two-way pulse signal reverse comparison circuit, analog quantity transmission circuit, level processing circuit, status display circuit, and protection isolation circuit are integrated into a level conversion module and applied as a physical object of the JRC transmitter signal acquisition circuit.

[0036] In this patent, in response to the needs and characteristics of remote monitoring of transmitter faults at the transmitting station, the staff installed a JRC transmitter signal acquisition circuit inside the transmitter to collect and monitor the transmitter's power on / off signals, output power, reflected power, power amplifier operating parameters, and various fault signals. The data is then transmitted to the duty desk monitoring display interface through communication methods such as RS232 / 485 bus or network IP access. After being processed by the host computer, it is transmitted to the IoT cloud platform. Through the access and management of the cloud platform equipment, it is possible to centrally monitor the data of various parameters of the transmitter's working status, collect and report fault alarm information, and when a transmitter fails, it can be recorded in real time and the transmitter can be protected by cutting off the high voltage, etc. The transmitter status and fault alarm information are pushed to relevant staff through the IoT cloud platform.

[0037] Therefore, based on this signal acquisition circuit, a remote monitoring system for transmitter faults based on the Internet of Things can be designed to collect and monitor the operating parameters and fault signals of the transmitter, display the relevant data on the monitoring interface of the duty desk, and push the real-time operating status and fault warning information of the transmitter to the designated staff through the Internet of Things cloud platform.

[0038] As Figures 3 - 5 , the transmitter signal acquisition system stores the processed real-time data of the transmitter into the database through the communication interface, and at the same time transmits the data to the configuration software, where it is compared with the alarm threshold of the abnormal operating state data of the transmitter set in the configuration software program. When the alarm threshold is triggered, it will be fed back to the PLC through the communication interface program to execute the corresponding actions in this alarm state.

[0039] The hardware connection of the entire JRC transmitter fault status monitoring system is as follows Figure 3 shown. The transmitters of the shortwave transmitting station are respectively arranged in the east and west machine rooms. According to the actual situation of the site equipment, the I / O modules of the PLC in the transmitter signal acquisition system are respectively installed at the lower part of the back of each JRS-700 series transmitter on site, and the CPU and communication modules are distributed and installed in the duty console with relatively less electromagnetic interference to achieve centralized control and decentralized management.

[0040] The JRC transmitter signal acquisition system is led out from the corresponding terminal blocks J111, J112, J113, and J114 at the rear of the JRC transmitter exciter module, as Figure 2 .

[0041] The relevant operating signals of the JRC transmitter are extracted from the CFR-87-714 noise filter board in the exciter unit. Among them, the analog signals: the transmitter output power Po, the forward voltage signal Vf for calculating the transmitter standing wave ratio, and the reverse voltage signal Vr are respectively introduced into the analog transmitter of the JRC transmitter signal acquisition circuit from the 14th, 17th, and 18th points of the J111 terminal block, and the signals are converted into 5-20 mA PLC input signals and connected to the analog input AI module; the digital signals: the transmitter power amplifier operation on PA ON, the power supply overvoltage PS OV, the power supply overcurrent PSOC, and the power supply fuse PS FUSE are respectively led out from the 12th, 13th, 14th, and 15th points of the J113 terminal block, and the transmitter power supply on PWR ON and the power amplifier alarm PA ALM are respectively introduced into the level conversion module in the JRC transmitter signal acquisition circuit from the 10th and 12th points of the J112 terminal block, and then the signals are sent to the DI input module of the PLC for data processing.

[0042] The JRC transmitter signal acquisition circuit of this patent is used to process the analog and digital signals collected from the transmitter, and then input them into the PLC; and process the relevant control instructions received from the upper computer and input into the PLC later, and input the signals into the transmitter for relevant operations.

[0043] Preliminary extended application example 1:

[0044] Such as Figure 3 , the relevant signals collected from the JRC transmitter are sent into the PLC through the DI and AI modules for data processing to realize the signal acquisition function. Later, through the DO digital output module of the PLC and a 24V intermediate relay, the relevant control signals such as the on / off signal to control the transmitter are sent into the corresponding interface board in the transmitter exciter to realize the logical operation control of the transmitter.

[0045] The CPU control master station of the PLC is connected to each I / O sub-station distributed in the machine room site through optical fiber or Modbus communication or EtherCAT bus, collects various analog and digital signals of the transmitter operation status, and later runs a preset program through the CPU and sends corresponding instructions to each transmitter through the output module, and relies on the action of the intermediate relay to realize the control of the transmitter by the PLC.

[0046] The communication between the PLC and the upper computer monitoring computer is realized by using an RJ45 Ethernet interface to achieve Ethernet communication connection, which can realize faster and more stable program / data download, has better real-time performance, supports the PLC to access the Internet, realizes operations such as remote search, online monitoring, uploading and downloading of the PLC, and can directly establish connections with each variable of the upper computer human-machine monitoring interface, with good operation convenience.

[0047] Extended function application example 2:

[0048] To meet the requirement that the transmitter status and fault alarm information can be pushed to relevant staff in real time, it is necessary to realize the remote uploading and downloading of programs and device data monitoring of the PLC and the monitoring screen through the Internet of Things network, such as the system Internet of Things network, such as Figure 4 .

[0049] Among them, the Internet of Things network module plays a connecting role in the entire JRC transmitter fault status monitoring system. It collects the data processed by the JRC transmitter signal acquisition system and the PLC below, and transmits the data to the Internet of Things cloud operation platform above. This module can select the XINJE A-BOX series products, which have simple network configuration, do not require professional technology, are easy to use, support technologies such as 4G full network communication, GPS global positioning, serial port transparent transmission function, and Ethernet VPN, and meet the requirements of the JRC transmitter fault status monitoring system based on the Internet of Things.

[0050] Finally, adjust the PLC program and HMI interface, and build them into the final IoT network of the JRC transmitter fault status monitoring system.

[0051] The main functions of the human-machine monitoring interface of the IoT network of the JRC transmitter fault status monitoring system are: status monitoring, fault alarm, and control operation. Through the human-machine interface established by configuration software such as Touch Win Pro, Kingview, and MCGS, the duty personnel can intuitively monitor the operating status of each JRC transmitter; by setting the OPC service, a data connection is established between the upper human-machine interface and the lower PLC, and the dynamic data of the PLC is reflected on the human-machine interface in real time. The duty operator can set and control each transmitter; by using the built-in database function of the configuration software, various parameters such as frequency, power, and standing wave ratio of the operating status of each transmitter are automatically recorded and a record table is created, and the fault alarms are recorded in real time to achieve data recording.

[0052] The preliminary plan is to connect 10 JRS-700 series transmitters in use at the transmitting station to the upper computer. The duty operator can click on the icon of the corresponding numbered transmitter through the display terminal operation to enter the real-time monitoring screen of the selected transmitter.

[0053] In the normal operation monitoring interface of the JRC transmitter, two circular charts are used to display the real-time forward power and reverse power of the current transmitter. The working mode and working frequency information of the selected transmitter are shown in the lower left corner. The fault lights of the power amplifier unit and the power supply unit are respectively in the lower right corner of the monitoring interface. When any alarm occurs in the transmitter, the transmitter stops working, and the relevant fault status is displayed on the monitoring interface.

[0054] It is also possible to build an IoT monitoring - remote cloud monitoring interface for the JRC transmitter, which is also called the JRC transmitter fault status monitoring system, such as Figure 4 、 Figure 5 As Function Application Example 3:

[0055] The JRC transmitter fault status monitoring system monitors the remote device data of PLC, touch screen, and human-machine monitoring interface based on the Internet of Things. Through the IoT network, remote dynamic monitoring, fault alarm, control operation, and data record query of JRC status information can be realized.

[0056] This system can select platforms such as Alibaba Cloud and XINJE Cloud Manufacturing to realize cloud data processing. The cloud service platform has the characteristics of no programming and no software installation, and can be quickly and conveniently connected. It can realize remote control of the device through WEB and APP at any time. The initial monitoring platform designed by the domestic XINJE Cloud Manufacturing platform can be used to directly monitor the remote data, set parameters, and control functions of the JRC transmitter fault status monitoring system through the cloud interface.

[0057] The JRC transmitter fault status cloud monitoring system configuration large screen can dynamically display the number of main and standby transmitters of the transmitter equipment at the transmitting station, fault records, maintenance information, etc., which is convenient for relevant staff to view remotely.

[0058] Relevant staff can also receive the alarm information of the transmitter at the transmitting station in real time through the alarm push of the WeChat official account. They can click Settings under the user name in the upper right corner of the device configuration interface in cloud manufacturing >> click Push >> turn on the WeChat official account alarm switch >> scan the WeChat public account code >> bind the platform push account.

[0059] From the above three application examples, it can be seen that as the basis, this circuit can assist in realizing the remote monitoring of the transmitters at the short-wave transmitting station, providing technical support for the construction of intelligent radio stations; relevant staff can selectively receive the alarm information pushed by the transmitters in real time, discover problems in time, and ensure the real-time smoothness of communication; it improves the automation and intelligence level of the operation of the transmitting system, and effectively improves the reliability and stability of the signal transmission work of the short-wave transmitter.

[0060] It can be seen from the signal acquisition circuit of this patent and its extended application embodiments that compared with the existing manual monitoring of transmitters, it has the following advantages:

[0061] It reduces the work intensity of the duty personnel;

[0062] When the transmitter alarms, it can push in real time, effectively preventing the problem that the communication is interrupted due to the downtime of the transmitter equipment and the duty personnel cannot discover it in time, and ensuring the real-time smoothness of the navigation support communication;

[0063] It realizes the start and stop of each transmitter in the monitoring network according to the plan, avoids the occurrence of missed broadcasts and misbroadcasts, and improves the reliability of the operation of the transmitting system;

[0064] The alarm data can be recorded and statistically tabulated in real time, realizing the paperless operation of the duty log and improving work efficiency.

[0065] Therefore, based on this signal acquisition circuit, more extended functions can be realized, and this circuit has extremely high popularization and application value.

Claims

1. A JRC transmitter signal acquisition circuit, used to collect analog signals and digital signals of a JRC transmitter, characterized in that: It includes two-way pulse signal reverse comparison circuit, analog quantity transmission circuit, level processing circuit, state display circuit, and protection isolation circuit, and the two-way pulse signal reverse comparison circuit, analog quantity transmission circuit, state display circuit, and protection isolation circuit are all connected with the level processing circuit; The two-way pulse signal reverse comparison circuit includes a comparison chip U3; the analog quantity transmission circuit includes resistors R3 to R6, terminal P1, and terminals P3 to P4; the level processing circuit includes a trigger chip U1; in One end of the resistor R6 is connected to pin 3 of the terminal P1, and the other end is connected to pin 3 of the comparison chip U3. Pin 2 of the comparison chip U3 is connected to pin 1 of the terminal P1. Pin 1 of the comparison chip U3 is connected to the resistor R3 and pin 3 of the trigger chip U1. Pin 5 of the comparison chip U3 is connected to the resistor R5, and the pin 6 is connected to pin 2 of the terminal P1. Pin 7 of the comparison chip U3 is connected to the resistor R4 and pin 11 of the trigger chip U1. Pin 4 of the comparison chip U3 is grounded. The other ends of the resistors R3 to R5 are all connected to pin 3 of the terminal P1, and pin 8 of the comparison chip U3 is also connected to pin 3 of the terminal P1. Terminals P3 to P4 are all connected to the protection isolation circuit; Pins 1 and 13 of the trigger chip U1 are connected to the protection isolation circuit, pins 2 and 12 are connected to the status display circuit, pins 4 and 10 are connected to terminal P4, pins 6 and 8 are grounded, and pins 5, 9, and 14 of the trigger chip U1 are all connected to pin 3 of terminal P1.

2. A JRC transmitter signal acquisition circuit according to claim 1, characterized in that: The status display circuit includes a light-emitting diode LED1 and a light-emitting diode LED2. Pin 2 of the trigger chip U1 is connected to the light-emitting diode LED1 and the resistor R1 in sequence. Pin 12 of the trigger chip U1 is connected to the light-emitting diode LED2 and the resistor R2 in sequence. After the resistors R1 and R2 are short-circuited, they are connected to pin 3 of the terminal P1.

3. A JRC transmitter signal acquisition circuit according to claim 2, characterized in that: The protection isolation circuit is a photocoupler U2, and the pins 1 and 3 of the photocoupler U2 are connected to the pins 1 and 13 of the trigger chip U1 respectively, and the pins 2 and 4 of the photocoupler U2 are grounded; Pins 8 and 6 of the photocoupler U2 are connected to pin 1 of terminal P4, and pins 7 and 5 of the photocoupler U2 are connected to pins 1 and 2 of terminal P3 respectively; pin 2 of terminal P4 is connected to pins 4 and 10 of the trigger chip U1.

4. A JRC transmitter signal acquisition circuit according to claim 1, characterized in that: The comparison chip U3 is NJM2904M, the trigger chip U1 is TC4013BP, and the model of the photocoupler U2 is ORPC-827B.

5. A JRC transmitter signal acquisition circuit according to claim 1, characterized in that: Terminal P1 is WJ2EDGK, and terminals P3~P4 are WJ500V.

6. A JRC transmitter signal acquisition circuit according to any one of claims 1 to 5, characterized in that: The terminal P1 is electrically connected to the CFR-87-71 noise filter board of the exciter in the JRC transmitter. The analog signals in the CFR-87-71 noise filter board include but are not limited to: the transmitter output power Po, the forward voltage signal Vf and the reverse voltage signal Vr used for calculating the transmission standing wave ratio; The digital signals of the JRC transmitter include but are not limited to: one or more of the following: transmitter power amplifier operation on PA ON, power supply overvoltage PS OV, power supply overcurrent PSOC, power supply fuse PS FUSE, transmitter power on PWR ON, and power amplifier alarm PA ALM.

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