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Can Antenna problems damage a com transmitter?

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user9253

Joined: 28 Mar 2008
Posts: 1921
Location: Riley TWP Michigan

Posted: Sun Mar 31, 2013 8:28 am Post subject: Can Antenna problems damage a com transmitter?

I intend to do some experimenting with homemade com antennas connected to my IC-A200.

Is there a danger of damaging the transmitter if the antenna is either open or short circuited or otherwise unsuitable?

Thanks,

Joe

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Joe Gores

tim2542(at)sbcglobal.net
Guest

Posted: Sun Mar 31, 2013 12:34 pm Post subject: Can Antenna problems damage a com transmitter?

Hi Joe, yes there is the possibility of damage if not built correctly. I assume you are building a 1/2 wave dipole or 1/4 wave vertical according to some published plans and if so, and the elements are cut to the correct length and it should be ok. Just make sure you have continuity at the radio connector, from the coax connector center conductor to the individual correct element and from the connector shield out the the other element. Also ensure you have NO conductivity between the elements.  Then try the receiver, then the transmitter. 

The SWR of the antenna can also be influenced by proximity to other stuff, like you or your airplane. To be safe, buy yourself a SWR meter or borrow one. Then you will know you are presenting a suitable impedance to the radio. 

Good luck

Tim 



Sent from my iPad



On Mar 31, 2013, at 9:28 AM, "user9253" <fransew(at)gmail.com> wrote:



 	  Quote: 	
		   

 

 I intend to do some experimenting with homemade com antennas connected to my IC-A200.

 Is there a danger of damaging the transmitter if the antenna is either open or short circuited or otherwise unsuitable?

 Thanks,

 Joe

 

 --------

 Joe Gores

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=397423#397423

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