Navionics app wifi advice

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rbro1979

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Morning everyone,
Need a wee bit of help.

Like a lot of folks I use Navionics app on my iphone and ipad (both in waterproof cases) for GPS navigation. I also have stand alone:

*JRC 1000 radar
*Humminbird 346c DI fishsinder (as depth sounder).
*Navman Chartplotter and VHF DSC

l think all these stand alones have nmae0183 and what I'd like to do is use a NMAE multiplexer with WIFI and GPS to send the sonar/radar etc to the Navionics app so it's all at the tiller.

Questions I have:
1. I think the 346c will send fine to Navionics but will the Radar show on the app?
2. Does anyone know that these systems are nmae0183 for this purpose? Difficult to find info (especially for the Humminbird )
3. Before I buy the multiplexer, will this work as thought?

Many thanks in advance for anyone replying.

Russ
(Boat is a Westerly Centaur)
 
You will not be able to show/overlay radar data onto Navionics although you will be able to overlay AIS data if you have a suitable receiver a wifi output or an NMEA/wifi converter.

There is plenty of other NMEA data which you can view on a tablet over wifi but AIS is the only data that I find useful.

Richard
 
Hi Richard, thanks for the reply.

mid hoped I could see the fish finder on the app or even just the depth on Navionics, not too fussed about the radar.
the multiplexer I’m looking at has GPS and AIS ports for antenna so that’ll be useful.

thanks again
 
rbro1979 said:
Hi Richard, thanks for the reply.

mid hoped I could see the fish finder on the app or even just the depth on Navionics, not too fussed about the radar.
the multiplexer I’m looking at has GPS and AIS ports for antenna so that’ll be useful.

thanks again
Click to expand...
Navionics can certainly accept live depth data as it must use that for the sonar charts data. I don't recall that I have ever tried it but it should work.

Richard
 
Hi, me again. Hopefully last question.
Below is a picture the back of fish finder (the box says it has nmae0183 output) and the multiplexer. Any chance you would know how to connect so the fishfinder info is sent via the wifi? (The red arrow points to transducer input). Cheers and sorry for the bother, Russ

0E344A79-9142-45E9-96D7-AEEB46EE030D.jpeg
 
The NMEA terminal is next to your transducer terminal. You can buy an NMEA cable - Cactus sell them. Then you need the pin out:

Looking at the picture:

Top left = NMEA Transmit +
Middle left = RS 485 COM (ignore)
Bottom left = GND
Top right = NMEA Receive +
Middle right = RS 485 COM (ignore)
Bottom right = Power + (ignore)

With the 797i, it didn't need the GND to be connected. I haven't yet tried that though with the Helix (the 797i was stolen and the NMEA neatly cut!)
 
1. Yeap - not the cheapest. You could just 'stick a wire init' but it is much better to get the proper bespoke plug) I note the image suggests only 4 pins rather than 6. That should be fine because it wants the RS232 pins (top left and top right). If the other two pins are absent that won't matter because that is for the RS485 connection which you won't use.
2. Yeap
3. Yeap
4. Last year, with the 797i, it needed no GND. Try the NMEA IN -

My note says the white is the NMEA Transmit + (i.e. Pin top left).
 
Last edited:
First class, you certainly know your stuff!

Out of interest, would I be able to bypass the fishfinder and plug the transducer into the multiplexer or is the fish finder needed as a middle man? I'm not planning on using the fishfinder at all just want depth, water temp, sonar etc on Navionics.

Cheers again.

Russ
 
I would use the fish finder as the middle man. And make sure that the fishfinder has turned on the NMEA output. On the 797 and the Helix there is a menu to turn on the toggle to output NMEA. Before you buy the Multiplexer, how many NMEA inputs will you use.
 
Hi thanks again,

Just the fish finder as NMEA input and there is a ais receiver and gps antenna input which I will use too.

I just want to view depth/sonar on Navionics via wifi.

I already have the multiplexer (photo above), if needs be i'll change the fish finder.

Cheers again

Russ
 
Can I ask what you mean by 'sonar'? The Fish Finder will be good, nothing wrong with that at all.

You have the right multiplexer - separate feeds for NMEA, AIS and GPS.
 
Just meaning depth and fish finder, don’t know why I keep putting sonar (marine electric noob I guess). I’ll get it wired up how you’ve mentioned.

thanks so much for you help again, it’s not easy to find it all on the net and it’s an important part.

cheers

Russ
 
I asked about 'sonar' because manufacturers are very 'loose' at actually defining what they mean by that - not that anybody defines it. Humminbird would be talking about all the visualisation such is the bottom hard or soft, are there fish, weed, obstructions etc, etc. None of that detail is communication in NMEA, that's either 0183 or 2000. Here is a snip from a log from NMEA 0183 on the Humminbird Helix:

$PSMT,0,0,0,2,appver,0*28
$INDPT,,*47
$INHDG,0.0,0.0,$INHDT,0.0,T*25
$INGGA,141928,5146.7789,N,00054.0477,E,2,09,0.9,7.0,M,,,0.0,0000*2E
$INZDA,141928,22,04,2021,-05,00*72
$INMTW,11.9,C*1D
$PSMT,0,0,0,2,appver,0*28
$INDPT,,*47
$INHDG,0.0,0.0,$INHDT,0.0,T*25
$INRMC,141929,A,5146.7789,N,00054.0477,E,0.0,65.6,220421,0.6,E*56
$PSMT,0,0,0,2,appver,0*28
$INDPT,,*47
$INHDG,0.0,0.0,$INHDT,0.0,T*25
$INGLL,5146.7789,N,00054.0477,E,141930,A*36
$INVTG,65.6,T,64.9,M,0.0,N,0.1,K*51
$INLTW,11.9,C*1D
$PSMT,0,0,0,2,appver,0*28
$INDPT,,*47

Note that my boat is ashore so the strings are not populated e.g. DPT has no depth as the transducers are in air. Note HDG - the heading is zero because I have no nav. data on the bus, nor do I have a chart yet installed. But if it was in full commission these strings would be populated. A few more would be added if I was on Nav but that would be about Nav data rather than sonar. When Navionics talk about SonarCharts what they mean is drawing contours based on the data you have hoovered up. The real trouble they never talk about is the issue of reducing tidal data to chart datum. Navionics will give you the depth, where it is for that depth and indeed when.

I tested the Helix for the first time today. I only used two wires; i.e Transmit+ and Receive +. GND was not necessary exactly as when I had had a 797i. Oh, yes there are only 4 pins wire on the cable - that is for:

+ve
GND
Transmit+
Receive+

So wiring those to the Quark will be fine. You need to leave the Humminbird on to send the data and please NOTE you will need to ensure the NMEA output is switched on. There will be a menu - generally deeper into the menu tree - that will be a simple toggle.

It will all work fine.
 
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