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20-62 VHF & UHF TRANSMITTER
Product Manual
Sea Air and Land Communications Ltd, 10 Vanadium Place, Addington, Christchurch 8024, New Zealand
March 2020
USB serial port
The USB connector provides a standard USB serial port. In many cases drivers may already be
included with your computer, however if a driver is required it can be downloaded from Silicon
Labs:
https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers
… or search for the CP210x USB to UART Bridge VCP Drivers
Download the driver for your version of Windows. The downloaded file is usually a ZIP file. Open
this file and run CP210xVCPInstaller_x64.exe for 64 bits systems or CP210xVCPInstaller_x86.exe for
older systems (Win XP and earlier, other 32 bit systems, or if the x64 version does not work).
Ethernet Port
To use the Ethernet port the 20-62 must first be correctly configured with the Salcom “Sacoto”
configuration software. Refer to the Sacoto Quick Start Guide below for configuration
procedures.
Powering-Up
When powered up the GREEN power indicator should flash once per second to indicate normal
standby operation, ready to transmit. A rapid GREEN flash indicates a low battery voltage.
The RED indicator will flash for a few seconds at power up if there is a problem. Error messages
are sent to RS232 serial port 1.
Configuration
The 20-62 can be entirely configured using the Salcom “Sacoto” configuration tool. Basic
configuration such as frequency, power, TCP/IP configuration, and input triggered messages are
covered in the Sacoto Quick Start Guide later in this manual. For more detailed configuration
refer to the “help” pages within Sacoto.
Message transmission
Standard COM port Terminal software can be used to initiate messages using Salcom protocol
(see below), or any of the other protocols when configured.
For example sending the text CA1234567 1 Hello, terminated with a carriage return (ASCII 13),
will initiate a 512 baud paging message, sent to CAP code 1234567. Sending messages is
described in more detail in the “Messaging” section later in this manual.
The RED TX indicator will light when the unit is transmitting. A flashing RED TX indicator while
attempting to transmit indicates a fault. This may be due to overheating or some other fault. If
overheating is suspected, please let the unit cool before trying again. Error messages are sent to
RS232 serial port 1.
