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Trevor Lyons

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Trevor Lyons last won the day on November 4 2019

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Profile Information

  • Gender
    Male
  • Location
    Newcastle-under-Lyme, Staffs
  • Occupation
    Retired university lecturer
  • Boat Name
    Cordelia
  • Boat Location
    Longport

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  9. I shall investigate the first point, but the tripping is not due to any short circuit. (The central fuse panel was installed before I bought the boat. it's possible it's a 240v unit). The maximum amperage of the converter is about 15A, but even using the horn and the radio at 25W would still be consuming less than 15A, I reckon. Thanks for your contribution.
  10. I've recently completed a "nav panel" in my wheelhouse comprising a number of 12v item: * GPS Chartplotter, * DSC/AIS VHF transceiver, * Horn * a 4-element console with digital voltmeter, cigar-lighter sockets and 2 USB ports. All items are individually fused, and the circuit has a dual pole switch (top left) to isolate the panel. Power is supplied via a previously unused 24v cable marked fed from the main consumer unit. The 24v current is converted to 12v using a solid-state converter. I am glad to say my wiring was faultless and everything works fine; but every third time or so when I turn the isolation switch, it trips the consumer unit. When I flick it back on, all is well. I presume that the occasional tripping may be due to a power surge or spike when the system is powered up. Is it possible to modify the circuit with a diode or capacitor or similar to smooth out the spike? It's only a minor irritation, and once powered up, all seems to be well, but I wouldn't want the system to trip at a vital moment. (The photo of the wiring underneath was taken before I fitted the horn button and the isolation switch). Any ideas, please?
  11. Isis a bird? Is it a plane? No, it's Cordelia being lifted out of the canal at Longport!
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  13. The ex-Trinity Marine supply boat Cornish Maiden in 2004 with a Customs cutter in attendance.
  14. I am at last installing some nav instruments on my barge (having had other priorities since I last posted over a year ago). These are: * Garmin Echomap Plus 65v * Standard Horizon GX2200E VHF radio with DSC, AIS, & internal GPS. The Garmin installation instructions leave a lot to be desired; it's easy enough to get power in, but the other two input cables are dealt with rather peremptorily. I would like to connect the two devices, not least so that AIS targets on the VHF screen will also be shown with more accuracy of the GPS chart plotter. Obviously useful when in coastal waters, but is linking the two instruments worth the bother on a canal boat? Do the big peniches transmit their AIS data? Or would one never get an AIS signal when inland?
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