WiFishing Posted August 31, 2022 Share Posted August 31, 2022 Hi I have been asked about a problem with a Koden Radar. It is losing definition on all ranges. Larger targets like ships and large land masses can be seen but smaller targets just not seen. Unfortunately it has been removed from the vessel so testing a bit awkward. Really looking to see if anybody has come across this type of fault and whether it is fixable through straight forward replacement of scanner or components. Thanks Quote Link to comment Share on other sites More sharing options...
MegaByte Posted August 31, 2022 Share Posted August 31, 2022 Sounds as though the sensitivity has been turned down, check the settings. Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted August 31, 2022 Share Posted August 31, 2022 @GPSguru maybe be able to help in this matter! He's a self proclaimed whizz👍🏻 Quote Link to comment Share on other sites More sharing options...
GPSguru Posted August 31, 2022 Share Posted August 31, 2022 Koden is good kit and generally used on commercial boats. There are 2 distinct possibilities, 1. Somebody has reduced the sensitivity (finger trouble), or 2. There is a fault in the Raydome which is allowing a wider beam (the width is the beam determines the object sensitivity). The same theory applies if you dont have a Raydome, just an open antenna. Quote Link to comment Share on other sites More sharing options...
GPSguru Posted September 1, 2022 Share Posted September 1, 2022 8 hours ago, JonC said: I’m not sure how old the unit is and it’s usage but the magnetron does have a limited lifespan. I took my old furuno system into a marine electrics specialist (Mantsbrite) who charged me about £50 to confirm it was fucked🤣 If it is older tech nobody supports it anymore and the default answer is an upgrade. True ........... Also the Furuno use quite an expensive magnetron, IIRC About £400, Quote Link to comment Share on other sites More sharing options...
captin slows old outlaw Posted September 1, 2022 Share Posted September 1, 2022 50 minutes ago, GPSguru said: True ........... Also the Furuno use quite an expensive magnetron, IIRC About £400, awach thats a lot Quote Link to comment Share on other sites More sharing options...
WiFishing Posted September 3, 2022 Author Share Posted September 3, 2022 On 9/1/2022 at 2:59 PM, JonC said: I’m not sure how old the unit is and it’s usage but the magnetron does have a limited lifespan. I took my old furuno system into a marine electrics specialist (Mantsbrite) who charged me about £50 to confirm it was fucked🤣 If it is older tech nobody supports it anymore and the default answer is an upgrade. The display is marked as manufactured 2006 so could just be old age. Thanks Quote Link to comment Share on other sites More sharing options...
WiFishing Posted September 3, 2022 Author Share Posted September 3, 2022 On 8/31/2022 at 10:32 PM, GPSguru said: Koden is good kit and generally used on commercial boats. There are 2 distinct possibilities, 1. Somebody has reduced the sensitivity (finger trouble), or 2. There is a fault in the Raydome which is allowing a wider beam (the width is the beam determines the object sensitivity). The same theory applies if you dont have a Raydome, just an open antenna. Hi, I will sort out a power supply and check out the display settings. If it is the 2nd possibility, is that fixable easily or is it get it to a service agent to repair? Thanks. Quote Link to comment Share on other sites More sharing options...
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