GB7PS
UHF Digital (DMR) Voice Repeater in London
Coming September 2026: The second DMR (Digital Mobile Radio) repeater operated by Keeper DAVID BUTCHART [M8ULH] will go live. Sited in Battersea, London, this UHF repeater uses the callsign GB7PS and runs on a Motorola DR3000. The repeater connects to the Brandmeister DMR network via the internet. Slot 2, London (2358) is configured as a static, "locked" talkgroup, linked with GB7LO.
Band: 70CM (DVU53) Output frequency: 439.6625 MHz RX Frequency: 430.6625 MHz
Please note that Output frequency refers to this station's output and RX is this station's RX frequency.
This station has registered the following operational modes:
DMR Connectivity: BRANDMEISTER and colour code: 7
ETCC Region: SOUTH-EAST ENGLAND [SE] RSGB Region: 9
ETCC Agent: (click name to contact) Dave Dawson, G7UZN
Locator: IO91WL Near: LONDON
TX antenna height above ground level: 5 Metres
ERP: 7 dBW
Latitude/Longitude: 51.48 / -0.14
Please note that Output frequency refers to this station's output and RX is this station's RX frequency.
This station has registered the following operational modes:
DMR Connectivity: BRANDMEISTER and colour code: 7
ETCC Region: SOUTH-EAST ENGLAND [SE] RSGB Region: 9
ETCC Agent: (click name to contact) Dave Dawson, G7UZN
Locator: IO91WL Near: LONDON
TX antenna height above ground level: 5 Metres
ERP: 7 dBW
Latitude/Longitude: 51.48 / -0.14
Battersea is a large, vibrant district in south-west London located entirely within the London Borough of Wandsworth. It is situated on the south bank of the River Thames, roughly 3.5 miles (5.6 km) south-west of Charing Cross.
Location & Boundaries
Location & Boundaries
- North: Defined by the sweeping curve of the River Thames, directly facing Chelsea and Belgravia on the north bank.
- South: Borders the wide green open spaces of Clapham Common and the neighborhood of Clapham.
- East: Borders Nine Elms and Vauxhall along Queenstown Road.
- West: Extends toward Wandsworth Town, bounded near the A214 road.
The image is a technical network schematic for a Digital Mobile Radio (DMR) network named London 2358 Net, which operates on the BrandMeister platform using Talkgroup 2358 (TG2358), Timeslot 2.
It visually details how multiple amateur radio (ham radio) repeaters and user hotspots across London connect to a central master server.
Core Components of the Network
BrandMeister Master Server (TG2358- TIMESLOT 2): Positioned at the center, this acts as the master and core router for the network, handling primary active TS2 routing.
Repeater Nodes: Four distinct physical radio repeaters across London are linked to the master server.
GB7LO – Bromley: Operating on 439.5125 MHz, CC3.
GB7HH – Romford: Operating on 439.7500 MHz, CC3.
GB7PS – Battersea: Operating on 439.6625 MHz, CC3.
GB7XT – Mottingham: Operating on 439.5625 MHz, CC3.
Connected Users & Hotspots: The bottom section tracks active endpoints feeding into the network:
HT Users: Operators using handheld transceivers / portable HT radios (34 active users).
Personal Hotspots: Mobile users, PTT users, and smartphone apps (28 active users).
Pi-Star Hotspots: Local RF-to-IP gateway devices (12 active devices).
Key Technical Details & Schedule.
Host: The network is hosted by the Bromley Repeater Group.
Data Protocol: It exclusively uses DMR on Timeslot 2.
Weekly Schedule: The network hosts a scheduled event or "net" every Saturday from 10:00 am to 12:00 pm GMT.
It visually details how multiple amateur radio (ham radio) repeaters and user hotspots across London connect to a central master server.
Core Components of the Network
BrandMeister Master Server (TG2358- TIMESLOT 2): Positioned at the center, this acts as the master and core router for the network, handling primary active TS2 routing.
Repeater Nodes: Four distinct physical radio repeaters across London are linked to the master server.
GB7LO – Bromley: Operating on 439.5125 MHz, CC3.
GB7HH – Romford: Operating on 439.7500 MHz, CC3.
GB7PS – Battersea: Operating on 439.6625 MHz, CC3.
GB7XT – Mottingham: Operating on 439.5625 MHz, CC3.
Connected Users & Hotspots: The bottom section tracks active endpoints feeding into the network:
HT Users: Operators using handheld transceivers / portable HT radios (34 active users).
Personal Hotspots: Mobile users, PTT users, and smartphone apps (28 active users).
Pi-Star Hotspots: Local RF-to-IP gateway devices (12 active devices).
Key Technical Details & Schedule.
Host: The network is hosted by the Bromley Repeater Group.
Data Protocol: It exclusively uses DMR on Timeslot 2.
Weekly Schedule: The network hosts a scheduled event or "net" every Saturday from 10:00 am to 12:00 pm GMT.
GB7PS DMR Motorola DR3000 Base Station Repeater, The image above, shows the Motorola equipment installed at the repeater site.
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