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Radio question

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bertrv6(at)gmail.com
Guest

Posted: Fri Dec 07, 2007 9:45 am Post subject: Radio question

Bob:



I have tried to contact you thru this, but no luck.  I guess i had the wrong

e-mail?   Some one fro the list gave me this one.  Hope you receive it.



I  want to add a second radio to my rv6a, but because lack of space I cannot

install an Audio panel.

Question is, if I add another radio, I am thinking of the

MicroAir...small and not

too expensive) Is there any Switch or way that I cfould use both radios, that is

switch from one to another, just as when you have the Audio Panel??



I have now the Kin's radio 125..



Thanks for your reply



Bert

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billp(at)wwpc.com
Guest

Posted: Fri Dec 07, 2007 10:46 am Post subject: Radio question

Bert,



The KX-125 has an audio mixer in it. You need to add a couple of Single 

Pole Single Throw switches to select which receive audio's you want to 

hear and a Double Pole Double Throw switch to select which radio the Mic 

and PTT is hooked up to. You don't need any electronics outside what the 

KX-125 already has.



You need the KX-125 install manual to see all the wiring.



- Bill



Bert Murillo wrote:

 	  Quote: 	
		   



 Bob:



 I have tried to contact you thru this, but no luck.  I guess i had the wrong

 e-mail?   Some one fro the list gave me this one.  Hope you receive it.



 I  want to add a second radio to my rv6a, but because lack of space I cannot

 install an Audio panel.

 Question is, if I add another radio, I am thinking of the

 MicroAir...small and not

 too expensive) Is there any Switch or way that I cfould use both radios, that is

 switch from one to another, just as when you have the Audio Panel??



 I have now the Kin's radio 125..



 Thanks for your reply



 Bert

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list(at)toddheffley.com
Guest

Posted: Sun Dec 09, 2007 6:15 pm Post subject: Radio question

Sir,



I would like to offer a different idea to adding a second com to your  

airplane.



While the reply that the KX125 has audio amp capability may be true -   

I have wired such an application my self - I would like to offer you  

an alternative.



you might consider a hand held radio as a second com in a VFR installation.



Here is my thinking.



You can purchase a better radio for a lower price in the handheld  

versions. Just simple economics.  More demand for handhelds, better  

competition in the market= more value.



A second com that is wired to "a few switches" is subject to the same  

failures as the first com.  Mic jack loose, stuck key line, depleted  

battery, Over-voltage. screw loose on the what-ever-bus.....



For a second radio, a quality handheld, MOUNTED to the panel, with a  

REAL antenna, a fresh set of batteries (or two), and a mic and phone  

jack that are easy to get to,  provides a more independent backup than  

a second installed radio.



This idea is not helpful for a rusted heldheld radio with 5 loose  

cables, dead batteries, rolling around in a  pick-up back at the  

airport.



And lastly, I am the poor slob (Avionics Technician) that ends up  

troubleshooting "A few switches" with no prints.



Just something to consider, sorry about the rant.



todd

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mlas(at)cox.net
Guest

Posted: Mon Dec 10, 2007 5:45 am Post subject: Radio question

The only problem I see is the lower power output of the handheld (less

then 1 watt).  If you're flying an airplane that flies slow and you

normally call the airport at 5-15 miles out, it should be fine.  But I

find that trying to make transmissions at distances of more then 15

miles within 4000 feet of the ground are hit and miss.  Just a thought!



Mike



--

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