Communication device, E-mail terminal, and communication system

Abstract

To provide a communication device which enables a user to immediately recognize a reception of an APRS (Automatic Packet Reporting System) message even if the user is located away from the communication device, and an E-mail terminal and a communication system.SOLUTION: A communication device 100b comprises: a DSP which functions as a reception unit and automatic transfer means; a transmission / reception circuit and an antenna; a control unit which determines whether a transfer function is valid / invalid; and a LAN port. In a case where the reception unit receives an APRS message M1 which is transmitted by another communication device 100a, a transfer APRS message M4 including a QSY frequency which is an audio frequency used between the communication device and the other communication device is transferred to a preset transfer destination terminal 40 via an I-GATE 20 and an APRS server 30. When a response message including the QSY frequency is received from the transfer destination terminal, the automatic transfer means changes an audio communication frequency into the QSY frequency and transfers a received audio signal to the other communication device.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a communication device, an E-mail terminal, and a communication system, and more particularly to a communication device, an E-mail terminal, and a communication system that transmit and receive packet data.

Background Art

[0002] The APRS (Automatic Packet Reporting System: registered trademark) message function is used when it is desired to send a message to a specific counterpart station. APRS messages are transmitted and received as separate packet data different from beacons. The counterpart station receives the APRS message and returns an acknowledgment message (ACK) to the local station. The APRS message is transmitted up to 5 times at most until an acknowledgment of receiving the acknowledgment message (ACK) is notified.

[0003] When the local station receives an APRS message, when it is not possible to directly receive a user operation input, there is a message automatic response function that returns a preset response message to the counterpart station. This response message has "AA:", which means "Auto Answer message", added to the beginning thereof. Note that Patent Document 1 discloses a communication device related to such an automatic message response function.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The APRS message sender who has sent an APRS message can, through the message automatic response function, know the reception of the APRS message and the absence of the APRS message recipient. However, when the APRS message recipient is away from the communication device, even if the recipient recognizes the reception of the APRS message, the recipient cannot respond.

[0006] Therefore, an object of the present invention is to provide a communication device, an E-mail, and a communication system that can recognize the reception of an APRS message and respond even when the user is away from the communication device.

[0007] The communication device according to this embodiment includes a receiving unit, a control unit that determines whether the transfer function is valid or invalid, an automatic transfer means, and an Internet line connection unit that connects to an Internet line, and when the receiving unit receives an APRS message sent by another communication device, transfer information including the QSY frequency, which is the voice communication frequency used between the other communication device and itself, is set as the transfer destination through an APRS gateway station and an APRS server connected to the APRS gateway station, and the APRS message is transferred to the transfer destination terminal. When a response message including the QSY frequency is received from the transfer destination terminal, the automatic transfer means changes the voice communication frequency to the QSY frequency and transfers the voice

[0008] signal input from the transfer destination terminal via the Internet line to the other A transfer message, which is a message from another communication device transferred via a communication device, in an E-mail terminal that acquires it via the Internet line, when extracting the QSY frequency from the transfer message, uses the IP address included in the transfer message and sends a response message including the QSY frequency to the communication device via the Internet line, and when the voice communication frequency of the communication device is changed to the QSY frequency based on the response message, packetizes a voice signal and transmits it to the other communication device via the communication device.

[0009] The communication system according to this embodiment is a communication device that transfers a received APRS message via the Internet line, another communication device that is the source of the APRS message, and an E-mail terminal that is the transfer destination from the communication device, and the communication device, when receiving an APRS message transmitted by the other communication device, transfers the APRS message to the E-mail terminal set as the transfer destination via an APRS gateway station and an APRS server connected to the APRS gateway station, including transfer information including the QSY frequency, which is the voice communication frequency used between the other communication device and itself, and the E-mail terminal, when extracting the QSY frequency from the transferred APRS message, uses the IP address included in the APRS message and sends a response message including the QSY frequency to the communication device via the Internet line, and when the communication device changes the voice communication frequency to the QSY frequency based on the response message, ​​​​​​​​​When this is done, the E-mail terminal packetizes the voice signal and transmits it to the other communication device via the communication device.

Advantages of the Invention

[0010] According to this embodiment, even when the user is away from the communication device, the reception of the APRS message can be recognized and a response can be made.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 5A

Figure 5B

Figure 5C

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0012] Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings However, the present invention is not limited to the following embodiments. Also, for clarity of explanation, the following description and drawings are simplified as appropriate.

[0013] (Embodiment 1) Embodiment 1 will be described with reference to FIG. 1. FIG. 1 is a block diagram showing the configuration of a communication device according to Embodiment 1.

[0014] As shown in FIG. 1, the communication device 100 includes a control unit 1, a DSP 2, a transceiver circuit 3, and an antenna 4.

[0015] The control unit 1 controls each component of the communication device 100. As a hardware configuration, the control unit 1 may include, for example, an arithmetic circuit having a CPU (Central Processing Unit), and a storage device having a program memory and other RAM (Random Access Memory) and ROM (Read Only Memory) such as a data memory. The control unit 1 acquires data from each component of the communication device 100 and calculates various data by the arithmetic circuit according to the program stored in the storage device. The control unit 1 determines whether the transfer function and the automatic response function are set to be valid or invalid.

[0016] The DSP (Digital Signal Processor) 2 is a processor that performs digital signal processing. The DSP 2 is connected to the control unit 1, the transceiver circuit 3, the microphone 5, and the speaker 6. The transceiver circuit 3 is connected to the antenna 4.

[0017] The transceiver circuit 3 receives data transmitted by another communication device (not shown) via the antenna 4 ​​​Do so. The other communication device may have the same configuration as the communication device 100 or may have a different configuration. DSP2 acquires the data received by the transmission / reception circuit 3. The format of the acquired data may be a packet. The acquired data may indicate characters, positions, weather, etc. The acquired data may be in the form of a packet, or may be something indicating characters, positions, weather, etc. DSP2 demodulates the acquired data and decodes the string of packet headers included in the data, and supplies it to the control unit 1. DSP2, the transmission / reception circuit 3, and the antenna 4 function as a receiving unit. The control unit 1 analyzes the supplied packet. The control unit 1 assembles the packet data. DSP2 modulates the assembled packet data to generate a signal. The transmission / reception circuit 3 amplifies the signal generated by DSP2 and transmits it via the antenna 4. DSP2, the transmission / reception circuit 3, and the antenna 4 function as automatic transfer means.

[0018] The control unit 1 assembles the packet data. DSP2 modulates the assembled packet data to generate a signal. The transmission / reception circuit 3 amplifies the signal generated by DSP2 and transmits it via the antenna 4. DSP2, the transmission / reception circuit 3, and the antenna 4 function as automatic transfer means. The transmission / reception circuit 3 amplifies the signal generated by DSP2 and transmits it via the antenna 4. DSP2, the transmission / reception circuit 3, and the antenna 4 function as automatic transfer means. function.

[0019] Note that the communication device 100 may further include a microphone 5, a speaker 6, a GNSS module 7, a non-volatile memory 8, a LAN port 9, a display 10, a PTT switch 11, an operation unit 12, and an RTC 13.

[0020] The microphone 5 picks up the voice uttered by the user of the communication device 100 and converts it into an audio signal. DSP2 performs processing such as band-limiting on this audio signal to generate a modulated wave. The transmission / reception circuit 3 modulates the carrier wave with the modulated wave generated by DSP2 and transmits it via the antenna 4. The transmission / reception circuit 3 modulates the carrier wave with the modulated wave generated by DSP2 and transmits it via the antenna 4. .

[0021] When DSP2 acquires audio data, it D / A-converts the acquired audio data and demodulates it. And by combining them, an audio signal is generated. The speaker 6 emits sound based on the audio signal generated by the DSP 2.

[0022] The GNSS module 7 includes an antenna that receives radio waves from satellites for the Global Navigation Satellite System (GNSS) and a receiver that receives the GNSS signal output by the antenna. GNSS is, for example, GPS (Global Positioning System). The GNSS module 7 acquires position information indicating the position of the communication device 100 and supplies it to the control unit 1. When the communication device 100 is not movable with the user and is fixed at a predetermined position, the position information of the communication device 100 may be stored in the non-volatile memory 8. The non-volatile memory 8 is, for example, EEPROM (Electrically Erasable Programmable Read Only Memory). The non-volatile memory 8 may record, for example, APRS messages or transfer destination addresses of APRS messages. The display 10 may display predetermined information and be provided with touch keys. The PTT (Push To Talk) switch 11 is pressed by the user to perform an operation of speaking and transmitting an audio signal. When the PTT switch 11 is not pressed, the control unit 1 keeps the communication device 100 in the reception standby state, and when the PTT switch 11 is pressed, the control unit 1 keeps the communication device 100 in the transmission state. The operation unit 12 receives operation inputs from the user. The content of the operation inputs received may include, for example, enabling at least one of a transfer function and an automatic response function. When the communication device 100 is not movable with the user and is fixed at a predetermined position, the position information of the communication device 100 may be stored in the non-volatile memory 8. The non-volatile memory 8 is, for example, EEPROM (Electrically Erasable Programmable Read Only Memory). The non-volatile memory 8 may record, for example, APRS messages or transfer destination addresses of APRS messages. The display 10 may display predetermined information and be provided with touch keys.

[0023] The non-volatile memory 8 is, for example, EEPROM (Electrically Erasable Programmable Read Only Memory). The non-volatile memory 8 may record, for example, APRS messages or transfer destination addresses of APRS messages. The display 10 may display predetermined information and be provided with touch keys. The non-volatile memory 8 may record, for example, APRS messages or transfer destination addresses of APRS messages. The display 10 may display predetermined information and be provided with touch keys. The display 10 may display predetermined information and be provided with touch keys. The display 10 may display predetermined information and be provided with touch keys.

[0024] The PTT (Push To Talk) switch 11 is pressed by the user to perform an operation of speaking and transmitting an audio signal. When the PTT switch 11 is not pressed, the control unit 1 keeps the communication device 100 in the reception standby state, and when the PTT switch 11 is pressed, the control unit 1 keeps the communication device 100 in the transmission state. When the PTT switch 11 is not pressed, the control unit 1 keeps the communication device 100 in the reception standby state, and when the PTT switch 11 is pressed, the control unit 1 keeps the communication device 100 in the transmission state. The operation unit 12 receives operation inputs from the user. The content of the operation inputs received may include, for example, enabling at least one of a transfer function and an automatic response function. The content of the operation inputs received may include, for example, enabling at least one of a transfer function and an automatic response function. to be set to invalid. The RTC (Real Time Clock) 13 measures time to generate time information. This generated time information may be used as a timestamp .

[0025] (One operation example) Next, with reference to FIG. 2, one operation example of the communication device 100 will be described. FIG. 2 is a schematic diagram showing one operation example of an example of the communication device shown in FIG. 1. This operation example shows a message transfer function ( Forward function) for transferring an APRS message to an E-mail terminal that can be owned and operated by a user of the communication device 100. ( Forward function).

[0026] The terminals 100a and 100b shown in FIG. 2 are examples of the communication device 100 shown in FIG. 1. The terminal 100a is assigned the call sign "AAAAAA-7", and the terminal 100b is assigned the call sign "BBBBBB-7". Strictly speaking, the call sign is assigned to a wireless station including the communication device, but in this case, it will be treated as an agreement for explanation. In this operation example, the terminal 100b is preset to enable (ON) the message transfer function.

[0027] Upon receiving an operation input by the user of the terminal 100a, the terminal 100a transmits the transmission APRS message M1 to the terminal 100b. When the terminal 100b receives the transmission APRS message M 1, it transmits a reception confirmation APRS message M2 (ACK) to the terminal 100a. .

[0028] The terminal 100b transmits a transfer APRS message M4 (transfer information). The transfer APRS message M4 includes the transmission APRS message M1.

[0029] Also, the transferred APRS message M4 may include transfer information including the Internet connection destination information of the terminal 100b. The Internet connection destination information is information related to the remote operation on the terminal 100b side. The control unit of the terminal 100b may receive the remote operation of the terminal 100b from the E-mail terminal 40 set based on the Internet connection destination information of the terminal 100b. For example, it is the Internet mail address that the terminal 100b can receive, the IP address of the terminal 100b, etc. As an example of the remote operation of the terminal 100b from the E-mail terminal 40, as described later, there is a process of implementing the QSY function for setting the communication frequency of the terminal 100b using VoIP (see FIG. 7). Also, the terminal 100b may, by a remote operation from the E-mail terminal 40, when receiving a response message to the transmitted APRS message M1 included in the transferred APRS message M4 via the Internet connection section, permit the transmission of the response message as a response APRS message to another communication device that transmitted the transmitted APRS message M1. The I-GATE20 is assigned the call sign "CCCCCC-1". When the I-GATE20 receives the transferred APRS message M4, the I-GATE20 transfers the transferred APRS message M4 to the APRS server 30. Here, the I-GATE20 is used, but an APRS gateway station other than the I-GATE may also be used. Furthermore, the APRS server 30 transfers the transferred APRS message M4 to a predetermined Internet mail address (E-mail destination). The E-mail terminal 40 is this Internet mail address

[0030]

[0031] ​​​​​​​​​​​​​​It is only necessary to be able to receive the e-mail transferred to S. The E-mail terminal 40 is a personal computer However, for example, it may be a tablet, a smartphone, or the like.

[0032] The E-mail terminal 40 notifies the user of the terminal 100b of the transferred APRS message M4. Note that In many cases, the user of the E-mail terminal 40 and the user of the terminal 100b are the same person. Also, in many cases, it is assumed that the E-mail terminal 40 is located at a place where the user of the terminal 100b can operate it or is carried. Since the transferred APRS message M4, that is, the transferred information, includes the content of the transmitted APRS message M1, the user of the terminal 100b can confirm the content of the transmitted APRS message M1 from the transferred APRS message M4.

[0033] The E-mail terminal 40 has an application installed that enables remote operation of the terminal 100b and can transmit a response message to the terminal 100b via the Internet 50 and the modem 60 using, for example, commands. The E-mail terminal 40 accepts an operation input from the user of the terminal 100b, for example, an input to click an e-mail link. Then, the E-mail terminal 40 automatically sets the destination call sign and the message line number, and further, the PC application is started when a response message is input.

[0034] When the automatic response message function of the terminal 100b is set to be effective, the terminal 100b can replace the automatic response message M3 with a command message until the automatic response waiting time elapses. The terminal 100b transmits the automatic response message M3 to the terminal 100a.

[0035] As described above, when the terminal 100b receives the transmission APRS message M1, the transmission APRS message M1 can be transferred to the destination email address. Therefore, the user of the terminal 100b can immediately check the content of the transferred APRS message transferred to the destination email address using the E-mail terminal 40. Thus, even when the user of the terminal 100b is away from the terminal 1 00b and cannot confirm the reception of the transmission APRS message from the terminal 100b, the content of the transmission APRS message M1 can be immediately confirmed.

[0036] Note that when the message transfer function of the terminal 100b is set to invalid (OFF), the above described operation example is not implemented.

[0037] (Message Transfer Function Setting Screen) Next, a setting screen for setting the message transfer function will be described with reference to FIG. 3. FIG. 3 is a diagram showing an example of the setting screen.

[0038] As shown in FIG. 3, the setting screen 110 displays "APRS Message Forward", "OFF", "ON (E- mail1)", "ON (E-mail2)", "ON (E-mail3)", etc. The setting screen 110 is a specific example of the display 10 shown in FIG. 1 or a specific example of any one of the displays 10 of the terminals 100a and 100b shown in FIG. 2. The setting screen 110 is used to set the message transfer function. The setting screen 110 accepts an input from the user to select any one of "OFF", "ON (E-mail1)", "ON (E-mail2)", and "ON (E-mail3)". ​The setting screen 110 receives the input "ON (E-mail1)" from the user. If there are multiple configurable email addresses, it is preferable that they can be switched according to the situation. The number of configurable email addresses is three, but one or more is acceptable. If there are multiple configurable email addresses, it is preferable that they can be switched according to the situation. The number of configurable email addresses is three, but one or more is acceptable. If there are multiple configurable email addresses, it is preferable that they can be switched according to the situation. The number of configurable email addresses is three, but one or more is acceptable.

[0039] (Message reception processing) Next, with reference to FIGS. 4A and 4B, an example of the message reception processing of the terminal 100b will be described. FIGS. 4A and 4B are flowcharts showing the message reception processing. Next, with reference to FIGS. 4A and 4B, an example of the message reception processing of the terminal 100b will be described. FIGS. 4A and 4B are flowcharts showing the message reception processing.

[0040] Receive a packet (step ST11). Subsequently, determine the DTI (Data Type Identifier) for the received packet (step ST12). Receive a packet (step ST11). Subsequently, determine the DTI (Data Type Identifier) for the received packet (step ST12).

[0041] If the DTI is ":", the received packet is a message packet, so determine the destination call sign (step ST13). If the DTI is other than ":", since the received packet is not a message packet, end the message reception processing. If the DTI is ":", the received packet is a message packet, so determine the destination call sign (step ST13). If the DTI is other than ":", since the received packet is not a message packet, end the message reception processing. If the DTI is other than ":", since the received packet is not a message packet, end the message reception processing. If the DTI is other than ":", since the received packet is not a message packet, end the message reception processing.

[0042] Subsequently, determine whether they match by comparing the destination call sign and the local call sign as strings (step ST13). The local call sign is set in the communication device 100. Subsequently, determine whether they match by comparing the destination call sign and the local call sign as strings (step ST13). The local call sign is set in the communication device 100. Subsequently, determine whether they match by comparing the destination call sign and the local call sign as strings (step ST13). The local call sign is set in the communication device 100.

[0043] If it is determined that the destination call sign and the local call sign match (step ST13: YES), confirm that the received packet is an APRS message (step ST14). If the destination call sign and the local call sign do not match (step ST13 If it is determined that the destination call sign and the local call sign match (step ST13: YES), confirm that the received packet is an APRS message (step ST14). If the destination call sign and the local call sign do not match (step ST13 If it is determined that the destination call sign and the local call sign match (step ST13: YES), confirm that the received packet is an APRS message (step ST14). If the destination call sign and the local call sign do not match (step ST13 :NO), since the received packet is not a message addressed to the local station, the message reception process is terminated.

[0044] Subsequently, the destination station call sign is acquired (step ST15). Specifically, the call sign part of the destination station is extracted from the received packet and stored.

[0045] Subsequently, the message body is extracted from the received packet and stored (step ST1 6). Subsequently, the line number is extracted from the received packet and stored (step ST1 7). Subsequently, a packet of the reception confirmation APRS message M2 (ACK) is created and transmitted (s tep ST18).

[0046] Subsequently, it is determined whether the message transfer function (Forward function) is set to be valid (ON) or invalid (OFF) (step ST19). When the message transfer function is set to be valid (step ST19: YES), a message for E-mail is created (step ST20). Details of this step ST20 will be described later using the flowcharts shown in FIGS. 5A to 5C. When the message transfer function is set to be invalid (step ST19: NO ), the process proceeds to the determination of the automatic message response (step ST22). ) and proceeds to the determination of the automatic message response (step ST22).

[0047] Subsequently, the created message for E-mail is transmitted (step ST21).

[0048] Subsequently, it is determined whether the automatic message response function is set to be valid (ON) or invalid (OFF) (step ST22). When the automatic message response function is set to be valid (step ST22: YES), the elapse of the automatic response waiting time is monitored (step ST 45). 23:NO). When the automatic response waiting time has elapsed (ST23:YES), the process proceeds to the automatic response message response process (steps ST24 to ST26). The automatic response waiting time is set to a predetermined time. If the automatic message response function is set to invalid (step ST2 2:NO), the message reception process ends.

[0049] Subsequently, it is determined whether a command for the response message has been received (step ST2 4). If the command for the response message has not been received (step ST24:NO), a preset message is used as the automatic response message M3 for response (step ST25).

[0050] If the command for the response message has been received (step ST24:YES), the message of the command is replaced with a preset message and used as the automatic response message M 3 for response (step ST26).

[0051] (E-mail Message Creation Process) Next, with reference to FIGS. 5A to 5C, the E-mail message creation process will be described. FIG. 5 A is a flowchart showing the E-mail message creation process. FIG. 5B is a table showing the relationship between each step in the E-mail message creation process and the E-mail message. FIG. 5C is a diagram explaining each character string constituting the E-mail message. This E-mail message creation process is the detail of step ST20 shown in FIG. 4B and is a process of assembling an E-

[0052] mail message. It is a process of assembling an E-mail message.

[0053] Set one character of ":" (colon) for starting the setting of the destination call sign area (step S T31). Subsequently, set the character string "EMAIL" in the destination call sign area (step ST32). Since the destination call sign area is fixed at 9 characters, set four " " (spaces) following "EMAIL". To start setting the message body area, set one character of ":" (colo n) (step ST33).

[0054] Set the recipient's E-mail address at the beginning of the message body area (step ST3 4). The recipient's E-mail address is set by the APRS message forwarding function, and in the examples shown in FIG 5B and FIG 5C, it is "abc@def.com". Subsequently, set one character of " " (space) (step ST35).

[0055] Subsequently, set the reply destination's E-mail address (step ST36). The reply destination's E-mail a ddress is the Internet mail address of terminal 100b, and in the examples shown in FIG 5B and FIG 5C it is "def@def.com". Subsequently, similar to step ST35, set one character of " " (space) (step ST37).

[0056] Subsequently, set the IP address of terminal 100b (step ST38). This IP address is "111.222.33.44" in the examples shown in FIG 5B and FIG 5C. Subsequently, similar to step ST 35, set one character of " " (space) (step ST39).

[0057] Subsequently, set the QSY information (step ST40). This QSY information is shown in FIG 5B and FIG 5C ​​In the example shown, it is "430.000 MHz". Subsequently, similar to step ST35, one character of " "(space) is set (step ST41). (pace)

[0058] Subsequently, the received message is set (step ST42). This received message is "hello!" in the examples shown in FIGS. 5B and 5C. Subsequently, similar to step ST35 one character of " "(space) is set (step ST43).

[0059] Subsequently, the destination station call sign is set (step ST44). This destination station call sign consists of "de" and a character string indicating the call sign format, and is "de AAAAAA" in the examples shown in FIGS. 5B and 5C.

[0060] Finally, the line number is set (step ST45). This line number is "{00001" in the examples shown in FIGS. 5B and 5C.

[0061] (Response Message Command Creation Process) Next, the response message command creation process will be described with reference to FIG. 6. FIG. 6 is a flowchart showing the response message command creation process.

[0062] The response message command creation process is a process of assembling a response message. An example of the response message being assembled is shown next to each block shown in FIG. 6.

[0063] Response message parameters are set (step ST51). One character of ":" (colon) is set as the delimiter (step ST52). (colon)

[0064] ​Next, set the destination station call sign (step ST53). In the example shown in Figure 6, it is "AAAAAA". Similar to step ST52, set one character of ":" (colon) as the delimiter (step ST54).

[0065] Next, set the response message (step ST55). An example of the response message shown in Figure 6 is "TEST". Another example of the response message is the content indicating that the user of terminal 100b is away from terminal 100b when the response message is sent. Another example of the response message is the content indicating the time when the user of terminal 100b can handle terminal 100b again.

[0066] Next, set the response message line number (step ST56). An example of the response message line number shown in Figure 6 is "{00001".

[0067] As described above, a response message can be created. Control can be performed to send the content of the above response message to the E-mail address of terminal 100b.

[0068] (Processing for implementing the QSY function using VoIP) Next, with reference to Figure 7, the processing for implementing the QSY function using VoIP (Voice over Internet Protocol) will be described.

[0069] Note that as one of the Q codes internationally used in wireless communication, there is QSY which is used to change the operating voice communication frequency. The QSY function exchanges frequency information of the voice band using this QSY. In APRS, the QSY function is the communication protocol of APRS​ Use the format of AFRS (Automatic Frequency Reporting System) included in the protocol to exchange frequency information.

[0070] Specify the IP address of the terminal 100b shown in FIG. 2, and connect from the E-mail terminal 40 to the terminal 100b (step ST61). Subsequently, perform a TCP connection to the TCP number so that command communication can be performed (step ST62). The TCP number is, for example, "TCP: 6000". Subsequently, change to the QSY frequency (step ST63). Subsequently, perform a UDP connection to the UDP number (step ST64). The UDP number is, for example, "UDP: 60001". Subsequently, digitize the voice (step ST65) and perform voice communication (transmit and receive) with each other, and respond to QSY (step ST66). Thus, even if the user of the terminal 100b is away from the terminal 100b, the E-mail terminal 40 can be used to change the voice communication frequency used by the terminal 100b .[[]END]]

[0071] (One display example of the display) Next, with reference to FIG. 8, an example of a display of the display 210, which is an example of the display 10 of the communication device 100, will be described. .[[]END]]

[0072] As shown in FIG. 8, the display 210 includes display areas 10a to 10e. .[[]END]]

[0073] The display 210 displays the received frequency and the transmission frequency in the display area 10a. When an APRS message is received, the display 210 displays the APRS information in the interrupt screen and displays it in the display area 10a.​

[0074] The display 210 displays a cross key and an "ENT" (Determination) key in the center thereof in the display area 10b. This cross key and this "ENT" key are touch keys and accept operation inputs by the user. This operation input is for frequency change, character input, menu setting, etc. The display 210 displays a numeric keypad in the display area 10c. This numeric keypad is a touch key and accepts operation inputs by the user. This operation input is for frequency change, character input, etc. The display 210 displays a message for transmission that is being created or has been created in the display area 10d. The display 210 displays a "Message SEND" button in the display area 10f. This "Message SEND" button is a touch key and accepts operation inputs by the user. This operation input is for message transmission.

[0075] The display 210 displays a numeric keypad in the display area 10c. This numeric keypad is a touch key and accepts operation inputs by the user. This operation input is for frequency change, character input, etc. The display 210 displays a numeric keypad in the display area 10c. This numeric keypad is a touch key and accepts operation inputs by the user. This operation input is for frequency change, character input, etc.

[0076] The display 210 displays a message for transmission that is being created or has been created in the display area 10d. The display 210 displays a "Message SEND" button in the display area 10f. This "Message SEND" button is a touch key and accepts operation inputs by the user. This operation input is for message transmission. The display 210 displays a message for transmission that is being created or has been created in the display area 10d. The display 210 displays a "Message SEND" button in the display area 10f. This "Message SEND" button is a touch key and accepts operation inputs by the user. This operation input is for message transmission. The display 210 displays a "Message SEND" button in the display area 10f. This "Message SEND" button is a touch key and accepts operation inputs by the user. This operation input is for message transmission. The display 210 displays a "Message SEND" button in the display area 10f. This "Message SEND" button is a touch key and accepts operation inputs by the user. This operation input is for message transmission.

[0077] The display 210 displays a "TUNE" button in the display area 10g. This "TUNE" button is a touch key and accepts operation inputs by the user. This operation input is for QSY execution. The display 210 displays a "TUNE" button in the display area 10g. This "TUNE" button is a touch key and accepts operation inputs by the user. This operation input is for QSY execution. The display 210 displays a "TUNE" button in the display area 10g. This "TUNE" button is a touch key and accepts operation inputs by the user. This operation input is for QSY execution.

[0078] The display 210 displays QSY information in the display area 10e. This QSY information is the counterpart station call sign and the frequency to be changed. The display 210 displays QSY information in the display area 10e. This QSY information is the counterpart station call sign and the frequency to be changed.

[0079] Note that the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist thereof. Note that the present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist thereof.

Explanation of Reference Numerals

[0080] 100 Communication device 100a Terminal 100b Terminal 1 Control unit 2 DSP 3 Transceiver circuit 4 Antenna 5 Microphone 6 Speaker 7 GNSS module 8 Non-volatile memory 9 LAN port 10, 110, 210 Display (settings screen) 10a~10g Display area 11 PTT switch 12 Operation unit 30 APRS server 40 E-mail terminal 50 Internet 60 Modem M1 Transmitted APRS message M2 Received confirmation APRS message M3 Automatic response message M4 Forwarded APRS message ST11~ST26, ST31~ST45, ST51~ST56, ST61~ST66 Step

Claims

[Claim 1] A receiving unit; A control unit that determines whether a forwarding function is enabled or disabled; An automatic transfer means; An internet line connection unit for connecting to an internet line, When the receiving unit receives an APRS message transmitted by another communication device, the receiving unit The transmission information, including the QSY frequency, which is the voice communication frequency used between the APRS gate Set as a transfer destination via the way station and the APRS server connected to the APRS gateway station The APRS message is forwarded to the destination terminal that has been When a response message including the QSY frequency is received from the destination terminal, The automatic forwarding means changes the voice communication frequency to the QSY frequency and a voice signal input from the destination terminal to the other communication device via a voice line; Communications equipment.

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