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Call 0345 2300 599The SPE LAN-UNIT is a network interface accessory designed to extend the remote-control capabilities of compatible SPE amplifiers.
By connecting directly to the amplifier’s PORT communication connector, the SPE LAN-UNIT adds Ethernet, Wi-Fi, and Bluetooth connectivity, allowing the amplifier to be controlled from a modern web browser, a virtual serial port, or SPE Term_232-compatible software.
The unit is powered directly through the amplifier’s PORT connector, so no separate external power supply is required. This makes it a clean and convenient upgrade for operators wanting easier shack integration, local network control, or remote amplifier access via a secure network setup.
Click here to download the User Manual.
Key Features
- Network interface for compatible SPE amplifiers
- Provides Ethernet, Wi-Fi, and Bluetooth connectivity
- Allows remote amplifier control via a web browser
- Supports virtual serial port operation over TCP
- Compatible with SPE Term_232 and equivalent software
- Powered directly from the amplifier PORT connector
- No external power supply required
- Ethernet and Wi-Fi web interface modes
- Bluetooth Serial Port Profile mode
- TCP socket virtual COM mode on port 7388
- Supports custom JavaScript user interface uploads
- Two remotely switchable auxiliary outputs
- Ideal for remote shack, LAN, and VPN-controlled amplifier installations
Operating Modes
| Mode | Connection Method | Control Method |
|---|---|---|
| Ethernet | LAN cable connected at power-up | Web browser via local IP address |
| Wi-Fi | Stored Wi-Fi credentials with no LAN cable connected | Web browser via local IP address |
| Bluetooth | No LAN cable connected in Bluetooth mode | SPE Term_232 or equivalent software via virtual COM |
| Virtual COM | Ethernet or Wi-Fi active | TCP socket on port 7388, mapped to a virtual COM port |
Web Interface Control
The SPE LAN-UNIT provides browser-based control of amplifier functions supported by the SPE protocol. Once connected to your network, the assigned IP address is displayed on the amplifier’s System Info screen, allowing access from a modern browser on the same network.
This is ideal for operators who want amplifier control from a shack PC, laptop, tablet, or other browser-equipped device without needing to connect directly to the amplifier by USB.
Wi-Fi and Bluetooth Connectivity
For wireless operation, the SPE LAN-UNIT supports 2.4GHz Wi-Fi networks using compatible IEEE 802.11 b/g/n access points. Please note that 5GHz Wi-Fi is not supported.
When operating in Bluetooth mode, the unit appears as an SPE Bluetooth serial device and can be used with SPE Term_232 or equivalent software via a virtual COM port.
Auxiliary Outputs
The SPE LAN-UNIT includes two remotely switchable auxiliary outputs, which can be controlled from the web console. These can be used for suitable external switching tasks such as controlling additional cooling fans or engaging RX bandpass filters during remote operation.
The auxiliary outputs use an open-collector low-side switching arrangement and should be wired correctly with suitable relay protection where required.
System Requirements
| Requirement | Details |
| Compatible amplifier | SPE amplifier equipped with PORT socket |
| Amplifier firmware | Newer than 08_06_26_A |
| Amplifier connection | PORT connection using standard straight-through serial DB9 cable |
| Ethernet network | 10/100/1000Mbps Ethernet network |
| IP assignment | DHCP server required |
| Browser support | Chrome, Firefox, Edge, Safari, or other modern browser |
| Wi-Fi network | 2.4GHz Wi-Fi only |
| Wi-Fi compatibility | IEEE 802.11 b/g/n access point |
| Wi-Fi security | WPA2-PSK recommended |
| Bluetooth requirement | Device supporting Bluetooth Serial Port Profile |
| Bluetooth software | SPE Term_232 or equivalent software |
Specifications
| Specification | Details |
| Brand | SPE |
| Product | SPE LAN-UNIT |
| Product type | Network interface for SPE amplifiers |
| Connectivity | Ethernet, Wi-Fi, Bluetooth |
| Ethernet speed | 10/100/1000Mbps network compatible |
| Wi-Fi support | 2.4GHz, IEEE 802.11 b/g/n |
| 5GHz Wi-Fi | Not supported |
| Bluetooth mode | Bluetooth Serial Port Profile |
| Virtual COM mode | TCP socket on port 7388 |
| Web interface | HTML/JavaScript browser interface |
| Power source | Powered from amplifier PORT connector |
| External power supply required | No |
| Amplifier connection | PORT connector via straight-through DB9 serial cable |
| Auxiliary outputs | 2 x remotely switchable AUX outputs |
| Recommended remote access | LAN, VPN, or SSH tunnel |
Typical Uses
- Remote control of compatible SPE amplifiers
- Shack network integration
- LAN-based amplifier control
- Secure remote access via VPN
- Browser-based amplifier monitoring and operation
- SPE Term_232 operation without a direct USB connection
- Virtual COM port control over Ethernet or Wi-Fi
- Remote switching of suitable auxiliary accessories
- Fixed station, contest station, and remote station setups
Important Network Security Note
The SPE LAN-UNIT is intended for use on a trusted local network or through a secure remote access method such as a VPN or SSH tunnel.
It should not be exposed directly to the public internet or used on untrusted networks without suitable protection. Direct internet exposure and unencrypted remote access are not recommended.
Important Installation Note
The SPE LAN-UNIT is powered through the amplifier’s PORT connector. It cannot turn on the amplifier while the amplifier is switched off. For remote amplifier power-on operation, the REMOTE pin on the CAT port must be used as described in the amplifier documentation.
Important Note
This listing is for the SPE LAN-UNIT network interface only. Amplifier, network cables, computer, router, and other station accessories are not included unless stated otherwise.
Please check that your SPE amplifier has the correct PORT socket and compatible firmware before ordering.
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]