REFLECTOR: KX 155 radio

[John Dibble]

Thanks, Larry.  I'll visit the avionics shop.

John

On 12/10/2012 11:42 AM, Laurence Coen wrote:
> John,
>
> Yes, your NAV antenna can be checked.  Being a "ham" radio guy I have 
> the right stuff to do the job but so would an avionics shop. It sounds 
> like, from what you've said, that it is probably the antenna.
>
> Larry Coen
> N136LC
>
> --------------------------------------------------
> From: "John Dibble" <aminetech at bluefrog.com>
> Sent: Sunday, December 09, 2012 3:00 PM
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Subject: REFLECTOR: KX 155 radio
>
>> My KX 155 radio has 1100 hours and has recently developed an 
>> intermittent noise, mainly right after engine start, but sometimes 
>> persisting for a few hours.  The noise is identical to the constant 
>> noise when I pull out the volume knob for weak signals.  Another 
>> problem is that I'm not receiving VOR signals well.  I fly GPS 
>> direct, but monitor VOR's along my route as backup.  On the "TO" side 
>> I have nothing in the window and the needle is dead.  Once I pass by 
>> the VOR, I get a "FROM" indication in the window and the needle 
>> responds normally.  I sent my radio and my KI 209 cdi to an avionics 
>> shop.  They made some minor adjustments and indicated that both 
>> instruments were fine.  They told me that the closer the radio ground 
>> is to the battery, the better the sound quality.  So I ran both 
>> grounds right to the battery.  This significantly reduced the radio 
>> noise, but did not help the VOR reception.  I have only one nav, so I 
>> can't try another antenna.  Is there a way I can check my nav antenna 
>> so see if it's working properly?
>>
>> Thanks,
>>
>> John
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