Now CE certified for safety, quality, and compliance!

Also available as a pcb: https://shop.rf.guru/products/2025-p-041-v

Included

• our enclosure
• Raspberry Pi Zero 2 W
• 32GB SD card
• 810SP Nagoya Antenna

Experience the power of the SVXLink Analog Hotspot2, a cutting-edge HAT designed exclusively for the Raspberry Pi Zero.

Packed with a formidable VHF 2 m band radio module, this versatile device is accompanied by a state-of-the-art DAC/ADC, enabling it to function flawlessly as an EchoLink/SVXLink analog 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)
• 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 20dBm / 100mW
• RX Sensitivity 12dB SINAD：-92 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 370mA

Software

https://github.com/Guru-RF/SVXSpot?tab=readme-ov-file#svxlink-bookworm-image

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

Measurements

All measurements were conducted using a calibrated Vector Network Analyzer (VNA) and a calibrated 36 dB attenuator. The worst-case harmonic observed was the third harmonic, measured at -42.33 dBc. This performance exceeds the requirements set by the CE RED directive for devices with output power below 30 dBm. Specifically, ETSI EN 300 220 requires spurious emissions to be at least 40dB below the carrier power for transmitters up to 30 dBm. Our device comfortably meets and surpasses this standard, offering an additional safety margin of over 3 dB.

The spectrum analysis confirms similarly excellent performance for spurious emissions, with no significant unwanted emissions detected. Additionally, the device transmits cleanly within the 12.5kHz channel bandwidth, ensuring precise and reliable operation.

This level of performance ensures compliance with international standards and places our device in the same league as the most respected brands in the market.

Spectrum

Harmonics

Channel Power