SparkFun
Reinforced Interface Cable - SMA Male to TNC Male (300mm)
A 300mm (1 foot) SMA male to TNC male cable with injection-moulded stress-relief boots. Built with SYV-50-3 cable for an excellent balance of low signal loss...
A 300mm (1 foot) SMA male to TNC male cable with injection-moulded stress-relief boots. Built with SYV-50-3 cable for an excellent balance of low signal loss and high flexibility — chosen over RG58 for superior performance at GNSS frequencies.
Ideal for connecting RTK development boards to high-quality GNSS antennas. The 300mm length is well suited for monopole or tripod-mounted devices without excess cable.
Key Features
- SYV-50-3 Cable – Lower loss than RG58 (52dB vs 46dB per 100m) with excellent flexibility
- Reinforced Connectors – Injection-moulded stress-relief boots for field use
- 50Ω Impedance – Standard nominal impedance
Specifications
- Cable Type: SYV-50-3
- Length: 300mm (1 foot)
- Connectors: SMA Male to TNC Male
- Impedance: 50Ω
- Loss at 300mm: ~0.16dB
Signal Loss by Frequency
- 200MHz: 23.74 dB/100m
- 400MHz: 33.93 dB/100m
- 900MHz: 51.80 dB/100m
- 1800MHz: 69.40 dB/100m
- 1900MHz: 77.06 dB/100m
- 2000MHz: 79.21 dB/100m
- 2400MHz: 87.40 dB/100m
- 3000MHz: 98.68 dB/100m
Ideal For
- RTK and GNSS antenna connections
- Surveying and precision positioning
- Field-deployed RF equipment
Package Contents
- 1× SMA Male to TNC Male Cable (300mm)
Jargon buster
Plain-language definitions for the technical terms used above.
- GNSS
- GNSS stands for Global Navigation Satellite System, covering positioning systems such as GPS and similar satellite networks. It matters here because high-precision GNSS modules can output lots of serial position data that this product can send wirelessly to a computer or phone.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
- RTK
- Real-Time Kinematic positioning is a GNSS technique that uses correction data from a base station to greatly improve location accuracy. It matters if you need centimetre-level positioning for robotics, mapping, surveying, or tracking rather than ordinary metre-level GPS accuracy.
- SMA
- A threaded coaxial connector commonly used for antennas. It matters because you need antennas with matching SMA connectors, or suitable adapters, for the LTE and GNSS antenna ports.
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