All guides
The complete library — 95 guides, grouped by the question each one answers.
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Foundations
How position, charts, orientation and onboard data actually work — the physics and limits behind every screen on the boat.
Equipment & Sensors
Chartplotters, radar, AIS, sonar, autopilots, networks, radios and power — what each device does well and where it fails.
- Marine chartplotter buying guide7 min
- Marine radar: Doppler, solid-state and open array9 min
- AIS for boats: Class B, SOTDMA and MMSI8 min
- Marine sonar: CHIRP, side scan and live sonar7 min
- Depth sounders and transducer selection7 min
- Marine autopilot guide7 min
- NMEA 2000, NMEA 0183 and marine Ethernet7 min
- Marine VHF and DSC in Australia7 min
- Satellite communications for boats6 min
Buying Guides
Brand-by-brand and model-by-model comparisons for the 2026 Australian market, with budgets and realistic shortlists.
- Best chartplotters 20264 min
- Best marine radar 20265 min
- Marine electronics brands compared7 min
- What it costs, and where to spend7 min
- Budget vs no-limit navigation: where extra money helps4 min
- Garmin marine electronics4 min
- B&G marine electronics4 min
- Raymarine marine electronics4 min
- Simrad marine electronics4 min
- Furuno marine electronics4 min
- Lowrance marine electronics4 min
- Radome vs open array4 min
- Class A vs Class B AIS4 min
- CHIRP vs traditional sonar4 min
- B&G vs Raymarine: sailing systems and refit tradeoffs4 min
- Garmin vs Simrad: compare complete powerboat systems3 min
- B&G vs Garmin for sailing: choose a complete system3 min
- Raymarine vs Garmin: a cruising navigation system comparison3 min
- Furuno vs Simrad: radar, fishing and cruising systems3 min
- Airmar B175M vs B175HW: depth reach or wider coverage?4 min
- Airmar transducers2 min
- Best depth sounders for cruising sailboats in Australia3 min
- Furuno DRS2D-NXT vs DRS4D-NXT: compact or larger dome?4 min
- Garmin Fantom 18x vs 24x: size, beamwidth and installation4 min
- Humminbird fishfinders3 min
- Marine radar compatibility: check the display before buying3 min
- NASA Marine instruments3 min
- Raymarine i40 vs i50 Depth: which instrument should you buy?4 min
- Simrad HALO20+ vs HALO24: which radome fits your boat?4 min
- Airmar B75M vs B175M: does your fishing justify 1 kW?3 min
- Digital Yacht: AIS and tablet integration for mixed-brand boats2 min
- em-trak AIS: understanding the B900 model choices2 min
- em-trak B952 vs B954: separate AIS antenna or built-in splitter?4 min
- Icom IC-M330GE vs Standard Horizon GX1400GPS: compact VHF choice4 min
- Icom IC-M510E vs IC-M510E EVO: the networking difference3 min
- Icom IC-M94DE: handheld VHF with AIS reception4 min
- Icom marine radios: choosing a fixed or handheld VHF2 min
- Lowrance Eagle 9 vs Elite FS 9: standalone fishing or expansion?4 min
- Lowrance Elite FS 9: product guide and expansion costs4 min
- NASA Clipper Depth vs Raymarine i40 Depth: standalone or SeaTalk?3 min
- Raymarine Quantum 2 Q24D: product and installation guide4 min
- Raymarine Quantum 2 vs Garmin Fantom 18x: which system fits?3 min
- Simrad HALO20+ vs Raymarine Quantum 2: a compact radar comparison3 min
- Standard Horizon marine radios: a buyer’s guide2 min
- Top 3 compact marine radars for a cruising-yacht refit2 min
- Top 3 fishfinder picks for Australian trailer-boat setups2 min
- Top AIS transponder picks for wired and tablet-based boats2 min
- Top fixed VHF radio picks for three Australian boat setups2 min
By Vessel Type
Complete system designs for sailing yachts, catamarans, motor yachts, offshore fishing boats and trailer boats.
- Choose navigation gear by vessel, passage and budget3 min
- Cruising sailing yacht navigation system8 min
- Best navigation gear for a 32-foot sailing yacht5 min
- Best navigation gear for a 50-foot sailing yacht4 min
- Cruising catamaran electronics7 min
- Catamaran vs monohull: navigation equipment that changes4 min
- Motor yacht navigation electronics6 min
- Offshore fishing electronics6 min
- Trailer boat and small craft electronics7 min
Seamanship & Safety
Using the system well: collision avoidance, night passages, passage planning, tides, weather and what survives a failure.
- Navigation redundancy that actually works7 min
- Pre-departure checklist4 min
- Collision avoidance with radar and AIS7 min
- How to tune marine radar4 min
- Night and poor-visibility navigation7 min
- Man overboard procedure4 min
- Passage planning, end to end6 min
- Crossing a coastal bar4 min
- Weather data and routing offshore7 min
- EPIRBs, beacons and safety equipment7 min
- Safety equipment by state5 min
- Anchoring and anchor-watch electronics6 min
Projects & Installation
Refits, wiring, sensor siting, commissioning and the documentation that makes a boat troubleshootable.
- Marine electronics refit guide7 min
- DC power for marine electronics7 min
- Sensor siting and installation7 min
- Commissioning and sea trials6 min
- Radar in action: a clear-weather training scenario2 min
- Worked example: electronics for a 6 m coastal fishing boat2 min
- Worked example: replacing depth instruments on a 10 m sailing yacht2 min
Reference
Definitions, quick answers and the acronyms nobody explains on the spec sheet.