UHF RFID Antenna Cable, SMA Male to SMA Male, 3 m (LMR-195 Class, 50 Ω)
A 3 m, 50 Ω coaxial cable with SMA male connectors at both ends, in the LMR-195 class, for joining a UHF RFID reader with SMA antenna ports to an antenna that has an SMA tail. The short, thin class for an antenna mounted close to the reader.
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Key features
- 50 Ω coaxial cable, SMA male at both ends, 3 m long
- LMR-195 class: about 0.36 dB per metre at 866 MHz, typical for the class
- Fits the SMA ports of the IHZ4, IHZ4N and the RM26 reader module
- For antennas supplied with an SMA tail, such as the 8 dBi and 9 dBi directional PCB antennas
- Indoor use; keep the run as short as the layout allows
- Frequency range
- Suited to the 865–868 MHz UHF RFID band; the class is rated well above it
Overview
What the 3 m SMA to SMA antenna cable is for
A fixed UHF reader with SMA antenna ports needs one coaxial cable per antenna. This 3 m cable has an SMA male connector at both ends, so it goes straight onto the SMA ports of the IHZ4, the IHZ4N and the RM26 reader module, and onto an antenna supplied with an SMA tail, such as the 8 dBi and 9 dBi directional PCB antennas. Panel antennas with an N female socket take the N male to SMA male cable instead.
Why cable loss matters
Every decibel lost in the cable comes straight off the power that reaches the antenna, and it costs the same again on the tag's reply. LMR-195 is the thin class: about 0.36 dB per metre at 866 MHz, typical for the class, so a 3 m run loses roughly 1.1 dB plus a little at each connector. That is fine for an antenna beside the reader; for a 10 m run to a dock door choose the thicker LMR-400 class. Our read-range calculator shows what a given cable loss does to the range of a reader and antenna pair, and the antenna guide covers connector and cable selection.
Choosing the length
Measure the actual route, including the loop needed to mount and service the antenna, and order the shortest standard length that reaches. A coiled surplus still loses signal. Lengths and connector pairs other than those listed are quoted on request: request a quote with the reader and antenna models and the number of runs. See all RFID accessories.
Where to use the UHF RFID Antenna Cable, SMA Male to SMA Male, 3 m (LMR-195 Class, 50 Ω)
- Fixed reader to a nearby antenna
- Desk and bench test set-ups
- Reader module prototypes
- Short runs inside a cabinet or kiosk
Specifications
Datasheet (PDF)| Impedance | 50 Ω |
|---|---|
| Connectors | SMA male at both ends |
| Length | 3 m |
| Cable class | LMR-195 / RG-58 equivalent (about 5 mm outer diameter, typical for the class) |
| Attenuation | About 0.36 dB per metre at 866 MHz, typical for the LMR-195 class: about 1.1 dB for 3 m before connector losses |
| Frequency range | Suited to the 865–868 MHz UHF RFID band; the class is rated well above it |
| Shield | Foil and braid, typical for the class |
| Jacket | PVC or PE, typical for the class |
| Use | Indoor |
Frequently asked questions
How much read range do I lose per metre of cable?
Is the port on the IHZ4 SMA or RP-SMA?
Can I join two cables to make a longer run?
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