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Table of Contents
GB7WIN Crab Wood, Winchester, Hants IO91hb
GB7WIN was commissioned on 23rd March 2025 as a joint project between Alan G8IPG and Jason M0MZF on the radio site at Crab Wood, Winchester as part of South West Hampshire Raynet's wider project to provide digital voice and data services to amateurs across the wider area. Thanks to Matt 2E0HKD for his continuing involvement in BPQ node configuration!
Live traffic monitor at http://gb7win.ddns.net:50650
Get on WhatsPac :) http://whatspac.m0ahn.co.uk:88/
Current and planned ports
| Freq. | Pol | Mode | NinoTNC mode | Status |
|---|---|---|---|---|
| 144.9375 MHz | V | NinoTNC QPSK 3k6 IL2P+CRC | 0101 | active |
| 50.650 MHz | V | NinoTNC GFSK 4k8 IL2P+CRC | 0100 | planned |
| 70.4875 MHz | V | NinoTNC GFSK 4k8 IL2P+CRC | 0100 | considered; possible link to GB7EBN |
| 432.650 MHz | V | NinoTNC GFSK 9k6 IL2P+CRC | 0010 | considered; possible link to GB7IOW / GBCS |
As far as possible we hope to use the forthcoming 6m port for linking and the 2m port for user access; with only the 2m port currently operational locked NETROM routes have been implemented to the following nodes with which we have a (mostly!) reliable circuit: GB7RDG (Reading, Berks), GB7BSK (Basingstoke, Hants), GB7WOD (Woodley, Berks) and MB7NPW (Pewsey, Wilts).
Technical
- Modified Comet GP-15N @ ~40m AGL / ~200m ASL, 55m Andrews LDF7-50A, 14dBW ERP
- Raspberry Pi 5 / Raspberry Pi OS (Debian Bookworm)
- LinBPQ (latest from Hibby's repo)
- Motorola GM380 (data in / flat audio out)
Coverage Maps
Simulations from radiomobileonline; Base antenna 12m AGL; Strong signal 15dBuV/m, Weak Signal 3dBuV/m
| 2m plot, 4dBi antenna, 12m AGL | 6m plot, 2.2dBi antenna, 12m AGL |
|---|---|
 |  |
Other FAC'd equipment on site
- MB7UUW APRS Digipeater, 144.800 MHz
- GB7CW DMR Repeater, South West Cluster, DVU48 439.600 MHz -9MHz, CC5, Slot 1 TG 9 Local, Slot 2 TG 950 Cluster