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HOTGROUP v2.0
Origin 1987 • Sovereign Spatial Defense
RANGELAND RADIO ENGINEERING // FIELD KNOWLEDGE BASE

FIELD SUPPORT & KNOWLEDGE BASE

Designed for harsh field conditions where cell connectivity is zero. Access offline-ready installation guides, interactive Fresnel zone simulators, and direct field engineering dispatch lines.

INTERACTIVE RF PROPAGATION CALCULATOR

Sub-1GHz Wi-Fi HaLow Line-of-Sight & Mast Elevation Simulator

Sub-1GHz (868MHz in South Africa) penetrates dry bush and acacia foliage up to 10x further than 2.4GHz Wi-Fi, but physical mountain ridges and ironstone koppies create total RF shadows. Use this calculator to determine the required mast height.

Undulating Karoo
6.0 Meters
3m (Bakkie mount) 6m (Standard mast) 15m (Tower)
6.5 dBi Fibreglass
RELIABLE RF RADIUS: 6.8 km
COVERAGE AREA: 14,500 Ha
FRESNEL CLEARANCE: 82%
RANGELAND RECOMMENDATION:

At 6m elevation on undulating Karoo terrain, a single HC-R1 solar repeater covers approximately 14,500 hectares. Ensure the fibreglass collinear omni is mounted at least 1.5m above the solar panel frame to prevent back-lobe attenuation.

AUTHORITATIVE ENGINEERING SPECS

Official Technical Manuals & Field PDF Guides

100% offline documentation for remote field tablets and print

MANUAL // ARCH-002 REV 2.4

HOTCORE-C1 Dual-Collar Moat Installation Guide

Step-by-step instructions for fitting the ballistic belt, adjusting the throat load cell strain gauge, and calibrating the 1:20 smart-to-decoy collar sentinel ratio.

MANUAL // ARCH-006 REV 1.8

HC-R1 Solar Mast Lightning & Earthing Protocol

Essential grounding techniques for Highveld lightning country. Copper rod depth, surge arrestors, and galvanic corrosion prevention in alkaline soils.

MANUAL // ARCH-008 REV 3.1

SAIDSA By-Law 25 Control Room Integration

Standard operating procedures for private security control rooms: 60-second priority SLA queue, immutable audit logging in tbldismissalarm, and operator callsign dispatch.

Direct WhatsApp Field Engineering

Immediate RF and hardware advice from our technical team

Are you standing on a windmill or mountain ridge needing confirmation on your Sub-1GHz beacon RSSI? Our field engineers operate dedicated WhatsApp support channels across all 9 provinces.

OPERATIONAL HOURS: Mon–Sun 05:00 to 20:00 SAST
EMERGENCY STOCK THEFT: 24/7 Standby Protocol
OPEN DIRECT WHATSAPP ENGINEERING CHAT

Log Field Diagnostic Ticket

Encrypted transmission to Pretoria engineering lab