The latest version of U5 LINK in 2021, upgraded patch technology, imported advanced FIDI FT-232RL USB interface chip, plug and play, heavy industry and heavy materials supporting finished cables, simple and standardized interface, complete full mode LINK.
(Note: upgrade to black shell, black panel)
Shipping list:
A total of 1 interface box, 5 wires.
1 × U5-8X7 host;
1 × USB cable (genuine HP original large magnetic ring is really shielded);
2 × DELL original audio cable (true shield);
1 × Professional customized DATA data cable (true shielding);
1 × CAT remote control cable (true shield).
USB driver, please go to FIDI official website to download:
http://www.ftdichip.com/Drivers/VCP.htm
By absorbing the reasonable improvement suggestions put forward by the majority of HAM, BH4TDV combines rich manufacturing experience, responds to the international mainstream plug-and-play concept, strengthens the design, optimizes the interface, and launches the 2021 new version of the MINI link U5 radio communicator, which is plug-and-play and small in size. Portable, compatible with multiple working modes, suitable for multiple application environments.
Performance profile:
*Original imported high-end FIDI FT-232RL USB interface chip
*SMD process
*Original imported 6N137 high-speed communication optocoupler, the communication speed is as high as 115200.
*Supporting mechanism finished data line connection cable, plug and play
*Radio remote control interface support: full photoelectric isolation, CAT remote control supports 115200 stable high-speed communication
*Complete signal support: including TXD\RXD\RTS\DTR\CTS signal.
*Support SQL control, CTS signal introduction
*Special customized high-quality audio isolation transformer, with shielding isolation, no hum
*Plug and play, no need to set up, no need for external power supply
*Standardized voice/data radio interface: DATA (MINI DIN 6 specification)
*Standardized CAT remote control interface: CAT (MINI DIN 8 specification)
*Professional wave soldering processing, high level of technology.
*Digital-analog optimized ground wiring structure.
Support radio model:
YAESU: FT-891 FT-991 FT-817\857\897\7800\8800\8900\100D etc.
ICOM support: IC-2710, 2720, 2820 and 703 (data interface only, PACKET), 706 (data interface only, PACKET), 7000 (data interface only, PACKET), etc.
KENWOOD support: TM-V71, TS-480 (only DATA), etc.
Hand station: support
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Application wiring example:
FT-817 857 897 Only use DATA instance:
FT-7800\8800\8900\100D and other UV radio stations, ICOM: IC-2710, 2720, 2820 and 703 (only UV), 706 (only UV), 7000 (only UV), etc. The same connection.
FAQ:
1. How to set DTR\RTS of U5?
Answer: The connector itself does not need any settings. Various application software sets RTS=PTT, DTR=CW, CTS=SQL (when needed).
2. How to send CW?
Answer: The output of the CW port of U5 is equivalent to the on-off signal output of a hand key contact, which is controlled by the computer software DTR signal. Use the CW cable (rooted audio cable, equivalent to the audio cable) to connect the CW and the radio key port, and the radio is set In hand key mode, CW=DTR is set for all kinds of reporting software.
3. When using radio stations 817, 857, and 897, the HRD cannot be connected, and the frequency is displayed?
Answer: Select the right USB port number in HRD. If you don&x27;t know the port number, select Auto or check it in the device manager. Select the correct communication rate, which should be consistent with the rate setting of the radio station. Check or adjust the FT-897 radio station on the 19th menu. The No. 20 menu of the radio station should be set to CAT.
If the USB port number is greater than 10 after the driver is installed, the USB port number should be set to <10 in the device manager, such as COM2.
The matching CAT cable is a square port, and some radios have a deep CAT socket, which may not be inserted in the end, resulting in poor contact. Properly cut off a little plastic on the side of the CAT cable square port so that the cable can be inserted in the end.
The above checks are correct, and the computer still cannot be connected. Check whether the 13.8V power supply of the radio CAT socket has an output (refer to page 32 of the FT-857D English manual for the pin definition of the radio CAT port). There is no output. Check and replace the built-in small fuse of the radio.
3A. I use HRD software, FT-897D radio, and it can display the frequency correctly, but connect to HRD radio means PTT transmission?
Answer: Do not tick RTS and DTR, tick RTS, and PTT will trigger the radio long hair after connection.
3B. I use HRD, and every time I use it, sometimes I find the port number to display the frequency normally, sometimes I can’t find the port number, and the HRD has a port number again when I restart it. What&x27;s the problem?
Answer: It is related to the HRD software. You need to connect the USB first, and then open the HRD software, otherwise HRD cannot retrieve the USB port number.
4. CW setting in HRD software?
There are 2 settings:
1. Keyed CW: Select CW, set the KEY port and keyed output DTR in "MODES+IDS" and tick to select. If PTT is required, check "USE PTT".
2. Audio report CW: select MCW, select PTT=RTS, or turn on radio voice control.
4a. I use HRD software, FT-897D radio, and it can display the frequency correctly. Using DM780 software, PSK31, SSTV, etc. can receive but cannot transmit. How to set it up?
Answer: DM780 software has 2 ways to control PTT transmission, one is command mode (requires radio support), and the other is RTS signal control mode. The software defaults to the command mode.
1) The command mode controls the radio PTT, provided that the radio has displayed the frequency in the HRD start interface, and the radio supports the command to control PTT.
Press F8 in DM780, select PTT from the list on the left, and select HRD on the right, and set it. After setting, a TX icon will be displayed.
2) HRD uses the command to control the PTT of the radio by default. If the radio does not support the command mode, the RTS signal can be selected to control the PTT transmission.
On the main interface of HRD frequency operation, press F8, select COM PROT TX in the left list, and select RTS in the right COM PROT PIN.
5. I use the U5 LINK YAESU small box and connect it to FT-817. In PKT mode, I may control the transmission, but there is no sound from the mobile monitor. I feel that the DATA line is loose?
Answer: The matching DATA cable is a square port, and some radios have a deeper DATA port, which may not be inserted in the end, resulting in poor contact. Cut off a little plastic on the side of the DATA cable.
6. How do I test whether the audio transceiver circuit of U5 LINK is normal?
Answer: Unplug all LINK connections, connect LINK SP and computer SP with an audio cable, turn on the computer volume, play a piece of MP3 on the computer, connect LINK MIC to a computer headset, find a small capacitor or thin wire, and short-circuit the DATA socket of LINK If the earphones have music on pins 1, 5, it means that the audio signal loop is normal.
DATA interface definition reference: http://hi.baidu.com/bh4tdv/blog/item/7e8eb137a444354dac4b5f69.html
7. Using the DATA interface FT-897D, the emission can be controlled in the UV section, but there is no signal output?
Answer: Refer to page 37 of the FT-897D English manual and press the MODE button to switch to PKT mode. At this time, the PKT mark lights up, and the internal electronic switch of the radio is switched to the DATA interface.
8. How to connect the U5 for YAESU connector to the hand console? Which mobile phones are supported?
Answer: Follow this link to make your own mobile phone connection http://hi.baidu.com/bh4tdv/blog/item/7e8eb137a444354dac4b5f69.html.
Jianwu compatible interface, YAESU hand station, MOTO hand station are all available. Among them, jumpers are available in YAESU handheld and MOTO handheld U5 LINK.
If you use the U5 for ICOM connector to connect the hand console, you need to connect a 5V power supply separately from the ACC to trigger the PTT.
9. U5 LINK is connected to a desktop computer and a radio station. Originally, the desktop computer SSTV was used to send and receive normally. Now it is connected to a laptop computer and the transmission is normal. The receiving image is inclined or cannot be received.
Answer: It has nothing to do with LINK. You will find that the two computers and the sound card are directly connected to the sound card without using LINK. The MIC-SP and SP-MIC cannot be decoded.
This phenomenon is related to the sound card clock. Different sound card clocks will have a slight difference. The clock difference will cause the sampling frequency to shift, resulting in decoding difficulties or failure to decode.
When encountering this problem, use 2 computers and connect the dual sound card with audio cable, MIC-SP, SP-MIC. Open the SSTV software on both computers, select 1900 for transmit test frequency, transmit test audio, and receive computer to observe whether the audio sampling spike is 1900. If they are different, option ---set MMSSTV--others---clock, select a different clock, The sampling frequency is correct.
Similarly, some softwares that use sound card decoding, such as APRS, have different sound card clocks, which can also cause decoding failure. You need to check whether there is a clock adjustment option in the application software. If there is no option, you can only choose hardware TNC decoding.
10. When using DATA interface to connect FT-450, when transmitting, the radio will automatically switch to CW mode? How to connect the remote control frequency?
Answer: Refer to page 73 of the FT-450 English manual, press the MODE button on the radio to switch to the radio DATA interface, and the radio DATA mark will light up.
The FT-450 remote control frequency still uses the original RS-232C interface of the radio, and the serial port cable is used to connect the computer serial port. Or use the FT-450 dedicated version, which only occupies 1 USB port on the computer.
11. FT-950 radio cannot trigger PTT transmission?
Answer: When used for FT-950, you need to specify 950 before ordering, and a relay for triggering PTT will be added when shipping. This service has been discontinued, and a dedicated LINK for FT-950 will be launched.
12. Is it possible to integrate a USB sound card, so that 2 audio cables can be omitted when connecting to a computer, are you considering doing this?
Answer: For the time being, from the test experiments of several commonly used USB sound cards on the market, the use of USB sound cards will make the application settings more troublesome. Some software cannot be decoded using USB sound cards. The main problems encountered in the test after interference This phenomenon: Suddenly no sound, sudden distortion, the left and right channels of sound are opposite, and the probability of damage is also relatively large, and some failures are relatively hidden, making it difficult to eliminate. If you encounter a USB sound card failure, you can quickly find and solve the problem, otherwise it is not recommended.
13. Which of the USB interface and RS-232C serial port is stable?
Answer: A commonplace question has long been concluded in the industrial field. At present, the USB-to-RS232C serial devices on the market are not as stable as the native RS232C serial port (under electromagnetic interference environment), but the contradiction is that almost everyone is using laptops to control the radio. Basically none of the laptops provide native RS232C serial port.
14. My control station is out of control, how to deal with it?
Answer: The environment that often occurs and uses the sky-tuning.
Precautions for using USB port:
USB is a digital-analog mixed signal for high-speed communication, so it is very sensitive compared to the ordinary 232 serial port. The transmission of the radio and the leaked radio frequency wave will affect the normal operation of the PC and PC peripherals (such as USB).
A simple verification method that can explain the problem, lower the power of the hand station to L, close the USB mouse and press the launch, the computer cursor will immediately fly away or fail to move, you need to re-plug the USB mouse to reset the USB device.
Therefore, strong radio frequency interference will also cause the communicator&x27;s USB port to lose control and no response.
Commonly used USB-232 (TTL) conversion chip models are FT-232RL, CP2102, PL2303, etc. No matter which kind of chip is affected by electromagnetic interference, communication failure will occur.
In a relatively strong electromagnetic interference environment, it is recommended to use the RS-232 serial port radio connector.
Handling measures for port out-of-control: Reconnect the USB port and restart the application software.
Try to improve the method: (1-5 key points)
1. The radio and the power supply are well grounded, and the grounding is poor, which may cause increased radio frequency interference of the radio equipment
2. The power supply and computer used by the radio station and the radio station should be connected to the same ground wire and maintain good grounding contact.
3. Adjust antenna resonance, reduce standing wave, avoid high standing wave emission, reduce interference to USB and computers and other equipment, and extend the life of the radio station. Larger standing wave emission will also cause unnecessary damage to the radio power amplifier parts.
Try to avoid the use of antenna adjustments to make the antenna resonate naturally. If it is unavoidable to use antenna adjustments, pay attention to the installation position of the antenna adjustments (refer to the antenna adjustment manual) to minimize the standing wave.
4. The magnetic ring is clamped on the cables such as USB cable, audio cable, data cable, and remote control cable.
5. If the distance between the communicator and the radio is extended, the antenna of the radio and the communicator must be kept at least 1 meter away (when the transmission power is 2W). The greater the transmission power, the greater the distance until there is no effect.
6. Use an external antenna (such as a magnetic chuck antenna base with an extension cord)
7. Check the radio feeder connector, weld and connect firmly to reduce leakage
8. Use a linear power supply to power the radio
9. The laptop can try to work with only laptop batteries