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Old 11 January 2013, 12:14   #11
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Sounds good to me (excuse the pun!)
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Old 11 January 2013, 13:44   #12
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I had this fault reported on some lifeboats I've worked on, and it's aways been water in the coax cable, but it's a good idea to change the antenna while your at it, Procom antennas are pretty good.
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Old 11 January 2013, 14:26   #13
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Originally Posted by dubrus View Post
last season while doing my normal pre sail coastgaurd check they said they were struggling to hear me. i can hear them no probs. i confirmed it was not location based as i sailed to outside the station and done same thing with same results on a diff day.
Sounds simple to me, you just need to speak up
Ian (current comms engineer )
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Old 28 January 2013, 18:00   #14
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Any marine radio is useless without a decent tuned antenna and good quality coaxial cable. The power transmitted only works through an efficient antenna.
1. Ensure all power and antenna connections are in good order.
2. Make sure the coaxial cables are soldered onto their PL259 or BNC plugs correctly.
3. Check if the radio system needs an "earth"/"ground plane"/anode connection.
4. It is MOST IMPORTANT that the power from the marine radio is efficiently radiated through the antenna. Check using a vswr/swr meter.

Most radios will receive a signal using a length of wire, BUT a badly tuned antenna or faulty coaxial cable will not allow your signal to transmit efficiently and will damage the power output transistor stage of your radio rendering it useless.
If you measure a high vswr reading DO NOT TRANSMIT - YOU WILL DAMAGE YOUR RADIO.

Finally, if you are prepared to pay big bucks for a radio, make sure you pay for a good quality antenna and coax.

Hope this helps.
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Old 29 January 2013, 03:37   #15
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on the coax side, make sure the outer braid doesnt short to the centre core - look through the hole in the side of the plug to check that the braid is well out of the way, or better still check using a multi meter.
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Old 29 January 2013, 03:47   #16
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i assume i have a problem in the system somewhere but not sure where to start, open to ways to proceed here?
remembering i can receive ok i'm not sure?
cheers
Just got my radio back after getting a new mic fitted -now 100% - great service from Geoff at Icom
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Old 29 January 2013, 18:44   #17
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Two excellent points made:
1. Ensure there isn't a short between the core and the braid of the coax (a common fault). This can be checked either with a swr meter and/or a multimeter.
2. ICOM marine radio's are well built and can be easily repaired (in most cases). They are also easy to re-programme (for change of owner MMSI number) by any good ICOM service centre.
If you plan on buying a new fixed marine radio, ensure it is a well recognised brand. If looked after it, any good radio can last for over 20 years or more. Money well spent.

If you are planning to fit a radio to your rib/boat, ensure you follow the manual instructions. If you are unsure about anything, just ask. Advice from forums like this one is free and most members are sure to help.
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Old 29 January 2013, 20:28   #18
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not had a chance to look yet folks, weather has been shocking as no doubt most know.

cheers
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