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The Sierra Radio Systems SIR-361 is an antenna relay control module for the Sierra Station Controller range.
The SIR-361 is designed to help integrate external relay-controlled equipment into a Sierra Station Controller installation. It is particularly useful where a station requires remote control of antenna relays, antenna switching hardware, or other relay-driven accessories from the Station Controller dashboard.
The SIR-361 connects to the Sierra DCN, or Device Control Network, allowing relay functions to be controlled as part of a wider station monitoring and automation system. This makes it suitable for remote HF stations, contest stations, repeater sites, and shack automation projects where relay-based switching needs to be brought under central control.
Key Features
- Antenna relay control module for Sierra Station Controller systems
- Also known as the Universal Relay Control Module
- Designed to control external relay-driven station equipment
- Suitable for antenna relay and switching applications
- Integrates relay control into the Sierra Station Controller dashboard
- Connects to the Sierra DCN system
- Useful for remote stations, repeater sites, and shack automation
- Helps centralise control of external switching hardware
- Can form part of a larger modular station control system
- Suitable for permanent fixed-station and remote-site installations
Typical Uses
- Remote antenna relay control
- External antenna switch control
- Station automation projects
- Remote HF station switching
- Repeater site control systems
- Contest station control layouts
- Shack control panels
- Bringing relay-controlled accessories into a central Station Controller dashboard
- Expanding a Sierra Station Controller installation
Station Controller System Role
The SIR-361 adds relay control capability to a Sierra Station Controller system.
It is intended for applications where the Station Controller needs to operate external relay-controlled equipment rather than directly switch RF through an onboard coax relay. This makes it useful for controlling existing antenna switching systems, relay boxes, auxiliary station hardware, and other equipment that can be operated through suitable relay control lines.
The module communicates over the Sierra DCN, using RJ45 style connections and network-style patch cables. These DCN connections carry Sierra’s RS-485 based control data and system power between compatible modules.
Although the connectors are RJ45 style, the DCN ports are not standard Ethernet ports and should only be connected to compatible Sierra Station Controller modules and accessories.
Power Requirements
The SIR-361 can be used as part of a Sierra DCN system, where power may be supplied through the DCN connection from a suitable host or powered DCN arrangement.
If the module is being used away from a powered DCN setup, or if the installation requires local module power, a suitable external DC power source may be required.
Compatible Sierra Station Controller Products
The SIR-361 is designed for use within the Sierra Station Controller ecosystem. It is typically used alongside a compatible host such as the SIR-310 Raspberry Pi Host Adapter, and can be expanded with the SIR-356 DCN Data and Power Hub where additional DCN connection points are required.
Important Note
This listing is for the SIR-361 Antenna Relay Control Module only.
SIR-310 host adapter, installation kit, DCN hub, power supply, antenna relay hardware, external switching equipment, control wiring, radios, antennas, coaxial cables, and other accessories are not included unless stated otherwise.
A suitable external power source may be required when the module is not being powered through a Sierra DCN connection from a suitable Station Controller host or powered DCN system.
The Sierra DCN uses RJ45 connectors and network-style cables, but DCN connections are not standard Ethernet connections. Do not connect DCN ports directly to normal Ethernet network equipment.
Please ensure that any external relay-controlled equipment is wired correctly and is suitable for the voltage, current, and switching arrangement being used.
Shipping & Delivery
We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.
Delivery Information
Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.
Returns & Cancellations
To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.
Changed Your Mind?
Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.
You must notify us of your cancellation within this period and return the goods within a further 14 days.
Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.
You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.
Exceptions
Modified Equipment & Reversal Charges
Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.
ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.
Custom-Made Cable Assemblies
Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.
Software & Labour Charges
Labour and modification charges requested by the customer are non-refundable once the work has been completed.
Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.
Return Postage Charges
Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.
Standard Parcels
Royal Mail Return Label
£5.95
Per parcel
For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.
Larger Parcels
DPD Return Label
£7.95
Per parcel
For larger or heavier parcels and any shipments with batteries.
Collection Service
DPD Collection
£25.00
Per parcel
Available upon request for eligible addresses, subject to availability.
Prepaid return charges will be confirmed before booking and deducted from your refund.
These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.
Faulty or Incorrectly Supplied Goods
Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.
Refunds
Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.
Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.
Warranty Terms & Conditions
New Equipment Warranty
Minimum 2-Year Warranty
All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.
Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.
Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.
Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.
All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.
International Returns & Warranty
Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.
International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.
ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.
Need Help With a Return?
Our team can assist with returns, postage arrangements, modifications and warranty claims.
Nothing in these terms excludes or limits your statutory consumer rights.