GARMIN GA 29 GPS ANTENNA

Description

GARMIN GA 29 GPS ANTENNA
30’ cable with BNC connector. These were commonly usedwith a wide variety of Garmin chartplotters and combo units. Label has been removedso there is no part number or serial number.
ABSOLUTELY NO RETURNS.Unscrupulous and unskilled ebay and craigslist buyers have forced meto implement a strict NO REFUND policy on electrical items. Onepurchased a chartplotter that I had tested and verified wasin excellent condition. He reversed polarity in installation anddestroyed the unit. Of course, he did not say that but insisted the unit wasdefective out of the box. I gave him a refund and sent the unit tothe manufacturer for repair. Only then did I discover what hadhappened. I lost 0 on that transaction.
Another buyer purchaseda radar that I had already tested and used but he insistedit was bad. Turns out he took the magnetron out of my unit and replaced it witha defective magnetron out of his unit. Fortunately, I had takenphotos of internal components serial numbers and caught him in the act.
Recently, a licensed“professional captain” bought a Raymarine 18” radome that needed 12 volt DCpower. Rather than hire a professional installer, he connected it to aRaymarine VCM 100 transformer used for larger open arrays and that puts out 48volts which destroyed the radome instantly.
A fourth bought a workingVHF radio that I demonstrated for him in my shop. He did his own installation,then he called to complain the unit would not transmit or receive. He livedclose by so I went over to have a look. He said “Take a look at this” andrepeatedly pressed the microphone to transmit on high power. I immediatelynoticed there was no antenna attached and informed him that he destroyed theVHF the moment he tried to transmit on high power without an antenna attached.
Another cut the plug off atransducer to make it easier to install. When he found he could not splice ithe actually expected his money back. These are only a few of my adventures withselling used electronics online.
AFEW NOTES FOR THE DO-IT-YOURSELF CROWD:
I am an ABYC technician certified in marine electricity,corrosion, and marine systems. Sometimes I have people ask “Do you think I cando it myself?” The answer is “If you have to ask that question then you need tohire a Pro.” Amateurs destroy millions of dollars in electronics every yearbecause they don’t know what they are doing. Manufacturers know this andinflate the cost of electronics to cover it.
A few common errors are:
1. Reversing polarity (very common)
2. Misunderstanding color codes
3. Not having the right tools and/or fittings
4. Not knowing that “yellow” is usually DCground, but in a stereo it can be a DC positive.
5. Failure to understand the complexities ofGPS/VHF interface
6. Keying the mic on a VHF without an antennaattached. This will destroy most VHF radios.
7. Powering up remote depth module withouttransducer attached (not a problem with new units)
8. Failure to use proper circuit protection
9. Using wire too small or of poor quality
10. Bending wires through too tight a radius
11. Stripping or nicking insulation while runningwires
12. And the most common offense of all – poorwire termination.
The list goes on and on. The key is that if youdo not have the proper tools, suitable materials, and adequate expertise youneed to contact an ABYC certified marine electrician.