[LW] [LW11] AXIOM MFD loses Quantum radome irregularly

[Louise - Raymarine - Moderator]

Dear Mika,

Thank you for the post.

In the Quantum installation manual it states that the product needs a continuous minimum voltage of 10.8v with a fully flat battery at 11v. If you are extending the power cable it needs to be a minimum 14AWG, is the cable you have used of substantial size?

If the power supply was sufficient the radar would be reliable and operate as expected. Most 12v products will shutdown with such voltages. It is probably a good thing to shut the radome off at the breaker at night and switch it back on after powering the engine back on. With your voltage dropping so low, when the engine starts this will cause quite a big spike in voltage with potential to cause issues.

11v is not a satisfactory supply for the Quantum Radome, a sufficient power supply is required. It could be worth investigating having your marine navigation equipment on a separate power bank than the heating system.

Many Thanks
Louise