A domed radar on a small boat is one of those upgrades that either saves your trip or sits on the console unused. Whether it is worth the money depends on where you fish and when you head out, not on how it looks on the dash. Some conditions make radar a necessity, while others leave you with cheaper options that cover most of the benefit.
Fog is the strongest case. In Kuwait, dense fog can wipe out visibility within minutes, and radar is the difference between following your track and getting caught blind in a shipping lane. Night running in busy channels is the second case. Long trips into areas with commercial traffic are the third. Finally, the bigger your boat and the longer your range, the stronger the argument, because your responsibility grows with the vessel.
A small dome radar is usually sold as covering 1/8 nautical mile out to 16 or 24 nautical miles, but the advertised maximum is not the real-world limit. Between 1 and 3 nautical miles you will pick up boats, buoys and solid structures reasonably well; beyond that, a small fibreglass target fades fast on screen.
Before you budget for radar, weigh the alternatives. The best option in poor visibility is simply not going out, and staying on known shipping lanes. A GPS chartplotter gives you position, heading and a track to follow, and a depth sounder keeps you clear of shallow ground. None of these replace radar in fog, but together they cover most everyday conditions at a fraction of the cost.
The decision is simple: count how many days a year you actually go out in fog, darkness or heavy traffic, then compare the cost and the power draw against the alternatives, and check the sea state on the Bahr (B7R) app before you commit to a departure. For installation, mount the dome clear of anything that blocks its sweep, keep it high enough to be useful without becoming a hazard, and run it on its own fused circuit. After fitting, test it on a clear day against targets you already know, so you learn how buoys and small boats look on screen before you need it in real fog.
The Bahr (B7R) app covers the daily planning side: tides for Shuwaikh and Shuaiba ports, sea state, a fish guide, a catch log, seasons, navigation tools and an SOS button, free on Google Play. If the fog or the wind argues against you, postponing is the better call.
Download the app and plan your next trip: https://play.google.com/store/apps/details?id=com.q8dm.b7r