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The Sierra Radio Systems SIR-421 is a 6ft LMR195 coaxial cable assembly designed for use with Sierra Station Controller RF switching modules and compatible amateur radio equipment.
This cable is fitted with a BNC connector on one end and a PL-259 connector on the other, making it ideal for connecting Sierra coax relay modules with BNC RF ports to HF radios or station equipment using standard SO-239 antenna sockets.
The SIR-421 is a useful accessory for the SIR-331 Four Port HF and 6m Coax Relay Module, allowing the BNC-equipped relay module to be connected cleanly to a transceiver, receiver, antenna input, or other HF station equipment with a PL-259 style connection.
Key Features
- 6ft LMR195 coaxial cable assembly
- BNC connector on one end
- PL-259 connector on the other end
- Suitable for use with Sierra Station Controller RF switching modules
- Ideal accessory for the SIR-331 Four Port HF and 6m Coax Relay Module
- Useful for connecting BNC-equipped RF modules to radios with SO-239 sockets
- LMR195 cable construction
- Passive cable assembly with no power required
- Suitable for tidy station wiring and remote switching installations
Typical Uses
- Connecting an SIR-331 coax relay module to an HF radio
- Connecting BNC RF switching modules to PL-259 station equipment
- Short LMR195 station patch lead for remote antenna switching systems
- Shack automation installations
- Remote HF station wiring
- Contest station RF switching layouts
- General BNC to PL-259 RF interconnection
Specifications
| Specification | Details |
|---|---|
| Brand | Sierra Radio Systems |
| Model | SIR-421 |
| Product type | Coaxial cable assembly |
| Cable type | LMR195 |
| Length | 6ft |
| Connector 1 | BNC |
| Connector 2 | PL-259 |
| Power requirement | None |
| Typical use | Connecting Sierra BNC RF modules to HF radio equipment |
Compatible Sierra Station Controller Products
The SIR-421 is especially suited for use with the SIR-331 Four Port HF and 6m Coax Relay Module, which uses BNC RF connectors.
Important Note
This listing is for the SIR-421 6ft LMR195 coax cable only.
SIR-331 coax relay module, radios, antennas, antenna switches, adaptors, and other accessories are not included unless stated otherwise.
Please ensure that the connector types, cable length, frequency range, and power level are suitable for your installation 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]