Null Ascii Characters in delta

[mxtommy]

Hi!

Started using the iKommunicate this past week and ran into an issue. I have a B&G v50 VHF connected to the network, however the delta's from the iKommunicate for this device contain null ascii characters in the JSON, which causes parsing issues.

This is an example of the full delta.

{"context": "vessels.urn:mrn:imo:mmsi:316033892","updates":[{"source":{"type": "NMEA2000","src": "000","pgn": 129799,"label": "N2000-01.000"},"timestamp": "2010-01-01T12:35:32Z","values":[{"path": "communications.radio.rxFrequency","value": 157100000.000000},{"path": "communications.radio.txFrequency","value": 157100000.000000},{"path": "communications.radio.txPower","value": 1.000000},{"path": "communications.radio.bandwidth","value": 0.000000},{"path": "communications.radio.channel","value": "22"}]}]}

The radio.channel value is 22 followed by a some non-ascii bytes (they don't show up but they're there)

I did a packet capture and got the following directly from the packet. This is the last few bytes of the delta, run it through a hex to ascii thing like https://www.rapidtables.com/convert/number/hex-to-ascii.html and you can see.

2c:22:76:61:6c:75:65:22:3a:20:22:32:32:00:00:00:00:22:7d:5d:7d:5d:7d

You can see the 4 "00"'s there that are causing the issue. This causes the entire delta to be dropped as the json can't be parsed.

Thanks!