Download and manually install the legacy driver package corresponding to your specific cable chipset (FTDI/Prolific).
A standard Windows-based computer with an available USB port. Software and OS Compatibility
This is the most common issue. First, check that the radio is turned on and the battery has adequate charge. Next, verify that the programming cable is firmly seated into the accessory port. Finally, double-check that you have selected the correct COM Port in the software.
A dedicated HYT 2-pin programming cable. USB versions are most common, though older serial (DB9) versions exist. PC/Laptop: A computer running Windows 7, 8, 10, or 11.
Look under . If a yellow warning triangle appears, manually update the driver (typically Prolific PL2303 or FTDI). Note the allocated COM Port number (e.g., COM3). 2. Install the HYT CPS Software hyt tc700 programming software 2021
Do not touch the cable or turn off the radio during this process.
The remains one of the most reliable analog workhorse radios in the industry. However, getting it to communicate with modern computers in 2021 (and beyond) requires specific software and a bit of technical troubleshooting regarding driver compatibility.
Prolific or FTDI USB-to-Serial drivers, depending on your specific cable chipset. Software Requirements
Open the application, select the correct COM port, and click "Read" to load the current configuration from the radio. Download and manually install the legacy driver package
The 2021 version of the CPS software HT700E Programming Software . 3. Installation and Setup Guide Follow these steps to install the software and drivers: Download the Software: Obtain the HT700E zip file.
Download and extract the HT700 CPS installer files to your local drive. Right-click setup.exe and select .
🔐 Some packages require a found inside a text file (often named SN.txt ) to install.
Configure CTCSS or CDCSS (DCS) codes under the Decode/Encode columns to filter out interference from other users sharing the same channel. First, check that the radio is turned on
A dedicated USB-to-serial programming cable with a HYT-compatible multi-pin connector. Cables with authentic FTDI chips are highly recommended for stable driver support.
Programming the HYT TC-700 in 2021 is straightforward once you clear the hurdle of driver compatibility. By using the HT700E software, you can extend the life of these durable radios and ensure your team stays connected with clear, secure, and professional-grade communication.
This usually means the software is looking at the wrong COM port or the driver is blocked by Windows. Try assigning the cable to COM1 or COM2 in the Advanced Port Settings of Device Manager.
Adjust the transmitter output to High for maximum structural penetration or Low to preserve battery life.
Go to and save this initial configuration file as a backup (e.g., TC700_Original_Backup.dat ). 4. Edit Channels and Features