Hello,

I purchased an AIS 650 unit last June and had a certified installer/boatyard put it in.  I have recently realized that only vessels within 1/2 mile can see our AIS signal.  We have no trouble seeing anyone else but vessels have to be way too close in order to see us.  I am wondering if there is a low/high power setting somewhere that I can adjust although I looked at the software interface that came with the unit and didn't see those options.  The unit is connected to a new E7 that we bought at the same time I am assuming via sea talk.  Any thoughts?

Brian

Views: 862

Reply to This

Replies to This Discussion

Welcome to the Raymarine Technical Forum Brian,

Class B AIS transceivers transmission power is limited to 2W.  This is essentially a VHF signal and one may typically assume a range of 1 nm/W of transmission power.  As VHF signal transmissions are line of sight, antenna height will also have an affect upon range.  It is recommended that the VHF antenna w/any extension may be tested with a VSWR meter or with the ProAIS2 application.  With a good antenna, cable, coupler assembly, the measured VSWR should be in the range 0.8:1 - 2.0:1.  Should the antenna's VSWR be within this range, then it is recommended that AIS650 be sent to Raymarine's Product Repair Center to be tested/serviced.

Ok, I think I have found the problem. The installer apparently used a receive only antenna splitter made by Glomex. The AIS receives great but as stated above we get very short transmit range. My question to you is this - is the Raymarine AIS 100 antenna splitter appropriate for use with the AIS 650 transceiver?

Thanks for your time.

Brian

Brian,

Use of a VHF antenna splitter which is not designed for use with CLASS B AIS transceivers may result in damage to the receiver section of the Class B AIS (ex. AIS650) and/or VHF radio.  Class B AIS antenna splitters such as the A80190 AIS100 Active Antenna Splitter are designed to support interfacing a Class B AIS transceiver and a VHF radio to a single VHF antenna.  Class B AIS antenna splitters are designed to protect the receiver of each device from the other devices transmissions.

Reply to Discussion

RSS

Events

Videos

  • Add Videos
  • View All

Photos

Loading…
  • Add Photos
  • View All

Latest Activity

W. Cary Letien updated their profile
yesterday
Keith Davis updated their profile
yesterday
William G Thomson updated their profile
Monday
Justin Brown replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"Please let me know if that gauge works for setting the bus"
Monday
Chris Manero replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"LMF-200. $155 on eBay new in box"
Saturday
Mathieu Neron replied to Richard Itkin's discussion C120W compatibility
"Perhaps one solution of the problem with out the aids to navigation like markers etc would be to do a split screen with one showing the normal charts and the one showing the fish aka sonar charts. I will try it on my end and let you know the outcome."
Aug 25
Danny Higgins replied to Tim Nesterak's discussion Navionics SonarChart Live
"I'm trying to turn on the Sonarchart Live on my e7D.  When I get to the section where the sonar log is located everything is grayed out.  I have the latest version of the Raymarine software and Navionics Platinum+; what am I doing…"
Aug 24
Gary Gershon replied to Michael Quiriconi's discussion Autopilot Smartcontroller Battery Replacement
"I had success in replacing the battery. Here's a few notes: My unit was completely dead. Didn't hold any charge. Battery pack via Defender arrived overnight by standard UPS in my area. Battery pack has two joined cells with three wires…"
Aug 24
Justin Brown replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"Which LMF gauge did you purchase?"
Aug 24
Chris Manero replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"Thank you Justin. Read that thread and same conclusion that need the Lowrance gauge to setup the way I want to. Bought one off of EBay for $155 and arrives Thursday. Disappointed as I too checked with Lowrance and Raymarine before purchasing and…"
Aug 23
German Delfino updated their profile
Aug 23
Justin Brown replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"Nope, still at a standstill..basically they are saying I will need to purchase another meter from lowrance to put them on different bus's to separate the data. Check this thread here for more…"
Aug 22
Chris replied to Gordon Long's discussion ST70 auto pilot - won't disengage & "drive motor not on"
"I've also had two problems that sound very similar. I have an X30 Smartpilot computer and type 3 linear hydraulic ram drive with an st70 control head at helm and nav stand below, and C series widescreen multifunction displays at helm and nav…"
Aug 21
Chris Manero replied to Justin Brown's discussion Help me understand the correct networking for STng & NMEA 2k sensors
"I purchased the sensors and will be installing them. Were you able to find out more info from Lowramce?"
Aug 21
Peter Boll replied to Daniel Lowery's discussion RayTechRNS 6.2 software
Aug 17
Captain Rick Sorrenti replied to Brad Young's discussion Ray 240 VHF.......how to obtain a new cord?
"If you read the Raymarine Moderator's comment. The cable is available directly from Raymarine. You could call...."
Aug 15

© 2016   Created by Moderator - Raymarine, US.   Powered by

Badges  |  Report an Issue  |  Terms of Service