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Receiver: Ravenna SDR VHF/UHF
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▃▅▇█▓▒░ Welcome to Ravenna SDR░▒▓█▇▅▃

This receiver shares the antenna with "Ravenna 0-2 GHz All Mode", has a tuner chip E4000, range 52-2226 MHz (1114-1241 MHz excluded).
BANDGUIDES are specifically selected for the location and meant to guide you in listening.
SQUELCH has to be correctly adjusted, noise threshold varies a lot.

TUNING:
Remember: ASK BEFORE TUNING!
When you connect to this node and you find another user already connected, ask in the local chat before tuning. If you don't get any answer within 2 minutes, you are free to tune.
Who tunes assumes responsibility for the tuned frequency.

ANTENNA:
VHF & UHF: Proxel X-700NH Vertical, 15m agl. Gain: 9.3dB (144MHz); 13.0dB (430MHz).

NODE HARDWARE:
Receiver: RTL2832 SDR (E4000)
VHF Notch filter: 88-108MHz (www.jghitechnology.com)
Raspberry Pi 4 model B 4GB RAM (1.5GHz quad-core ARMv8 CPU)


Enjoy listening!
73 de IZ4YGS Matteo

*The following frequencies are blocked:
- Military
- Law enforcement & security services
- FM broadcasting (filtered by notch)
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