2023-K-041

SVXLink HotSPOT UHF / VHF

svxlink-hotspot SHOP 

Experience the power of the SVXLink Hotspot, a cutting-edge HAT designed exclusively for the Raspberry Pi Zero.

Packed with a formidable 0.5W/1W UHF (70cm) or VHF (2m) FM radio module, this versatile device is accompanied by a state-of-the-art DAC/ADC, enabling it to function flawlessly as an EchoLink/SVXLink hotspot.

What's more, with the combination of a remote SVXLink with AnalogBridge (DVSwitch), you gain access to digital networks, including the Brandmeister and OpenDMR network, unleashing a world of limitless possibilities.

Datasheet

  • Raspberry PI Pin compatible
  • PCB ENIG (Electroless Nickel Immersion Gold)
  • UHF 70cm band frequency: 400~480 MHz
  • VHF 2m band frequency: 134~174 MHz
  • Tx and Rx frequency, Tx and Rx CTCSS, CDCSS can be set separately.
  • Band width 12.5KHz / 25 KHz
  • Output power up to 1W (0.5W recomended)
  • RX Sensitivity：-124 dBm
  • Adjustable RX en TX volume
  • 1 ppm KDS TCXO crystal
  • Wolfson WM8960 ADC/ 1W DAC 48khz
  • Signal/Tone Blue LED
  • TX/PTT Blue LED

Power consumption in combination with a Raspberry PI Zero W

  • Receive modus 220mA
  • Transmit modus (low power) 580mA

Kit Components

While we offer the option to purchase pre-assembled devices for your convenience, kit assembly is fairly easy (only 5 parts to solder) !

  • 2 Audio transformers
  • 2 Pin Jumper
  • 40 Pin Header
  • SMA socket
  • UHF or VHF SA818S Radio module
  • 4x 2.5MM Torx screws
  • 4x 11m Plastic standoffs

Enclosure

(in development)

Software

https://github.com/Guru-RF/SVXSpot

Disclaimer

We advise to use the hotspot only with 0.5 Watt output power !

For those planning to connect their hotspot to a base antenna, we strongly advise incorporating an additional band filter. This essential component acts as a safeguard, preventing any potential signal interference due to harmonics.