Raymarine Wind failure

[artboas]

Thank you. That’s a very interesting observation you make, one that I’m going to pursue. I haven’t got a i60 on board I have a i70. I am away from any marine supply stores at the moment but when I can, I’ll get ahold of a Stng connector allowing me to connect the bare wires from the MHU to the i70 through a seatalk converter. E22158 before moving on to the other avenues you suggested.

Nope, that won’t work.
What I’m referring to is using the analog input terminals on an i60 to bring the MHU into the system instead of the itc-5
The ST converter does nothing for you, unless you can get your hands on an old ST60 analog wind display.
Tracking down the wind /itc-5 problem was a huge pain for me. Honestly, I knew what the answer was by reading the input current through my fluke dvm, and then seeing that the i60 was capable of sourcing the current, but the itc-5 couldn’t.
Once again, it’s a design difference. The older gear used a higher capacity current source through some op amps, whereas the itc-5 gets the reference voltage straight from the D-A on the uP output pins.
I apologize if this is too high level discussion, but unsure of your expertise

 

[Genesis V]

Nope, that won’t work.
What I’m referring to is using the analog input terminals on an i60 to bring the MHU into the system instead of the itc-5
The ST converter does nothing for you, unless you can get your hands on an old ST60 analog wind display.
Tracking down the wind /itc-5 problem was a huge pain for me. Honestly, I knew what the answer was by reading the input current through my fluke dvm, and then seeing that the i60 was capable of sourcing the current, but the itc-5 couldn’t.
Once again, it’s a design difference. The older gear used a higher capacity current source through some op amps, whereas the itc-5 gets the reference voltage straight from the D-A on the uP output pins.
I apologize if this is too high level discussion, but unsure of your expertise

I’ll try and get ahold of an i60 connect the analog wires of the MHU to it and integrate the i60 on the network. Note: the MHU came in a Raymarine kit along with i70 and itc-5. kit-pack# T70216
Question: why does my friend’s loaner MHU unit work perfectly though the itc-5. (are some MHU made for itc-5’s and others for i60’s)
I was going to purchase a new MHU but I’m somewhat hesitant now given your findings.

 

[artboas]

I’ll try and get ahold of an i60 connect the analog wires of the MHU to it and integrate the i60 on the network. Note: the MHU came in a Raymarine kit along with i70 and itc-5. kit-pack# T70216
Question: why does my friend’s loaner MHU unit work perfectly though the itc-5. (are some MHU made for itc-5’s and others for i60’s)
I was going to purchase a new MHU but I’m somewhat hesitant now given your findings.

This is what I was saying,,
There is a known problem in the MHU units that can draw more current than the itc-5 can supply. So, your friend’s mhu unit is below that current threshold
Let me know of the results when you hook up an i60. You don’t even need to hook it into the network. The dial on the i60 will just likely read correctly