Cubo 162 Active Splitter question

[webcraft]

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The manual says do not switch on unless both the VHF and the AIS are connected. It says damage could occur if there is no load.

Does this mean the VHF and AIS have to be connected and powered up before powering up the splitter, or just that they have to be connected?

- W

 

[Hoolie]

I have a Vesper Marine splitter and the instructions for that state the antenna must be connected before either the VHF or AIS can be switched on. A load on the output has to be provided to prevent damage.

 

[webcraft]

I have a Vesper Marine splitter and the instructions for that state the antenna must be connected before either the VHF or AIS can be switched on. A load on the output has to be provided to prevent damage.

This is what the manual actually says;

When the antenna splitter is in use, ensure the splitter is
connected both with VHF radio and AIS class B
transponder/receiver. If you intend to connect the antenna splitter
temporarily only to VHF radio or AIS class B transceiver/receiver,
it´s highly recommended to connect the unused connector to a
dummy load which will protect the splitter from electrical damage.

I'm still confused??

Was going to wire the splitter either into the Instruments switch (in which case the AIS wil also be on) or into the VHF switch. Eithger of these leaves the possibility that one of the cobnnected devices (AIS or VHF) will still be off when the splitter is on.

Can't believe it needs both to be on, as power failure to either (eg an inline fuse blowing on the radio) could then result in the splitter being damaged.

Have emailed the manufacturer, but with only a small hope of success.


- W

 

[Hoolie]

I'm still confused??

So am I! The risk of damage is surely due to unloaded RF power. This comes into the splitter from VHF & AIS and goes out to the antenna. It's clear the antenna load is needed if RF transmissions are coming into the unit, particularly 25w from the VHF. But low level unterminated RF reception from the antenna surely can't damage the unit?

 

[webcraft]

So am I! The risk of damage is surely due to unloaded RF power. This comes into the splitter from VHF & AIS and goes out to the antenna. It's clear the antenna load is needed if RF transmissions are coming into the unit, particularly 25w from the VHF. But low level unterminated RF reception from the antenna surely can't damage the unit?

Now heard from Lukas Wang at Sales & Marketing | Alltek Marine

All you need is to connect the splitter with VHF and AIS, with or without powering them on. That means, even when the connected VHF and AIS devices are not powered on, they are still working as loads for the splitter.

So - that;s a relief!

- W