[time-nuts] KS-24361 antenna trick

[EWKehren at aol.com]

I did it at the antenna connector at the front panel for the reason that  
you just stated. At the same time I inserted a SMA connector since all my 
cables  and splitters are SMA. There is a pinout for SMA.
Bert Kehren
 
 
In a message dated 11/9/2014 8:28:14 P.M. Eastern Standard Time,  
paulswedb at gmail.com writes:

OK have an  answer for the antenna sense system.
Bert had suggested a 220 ohm resistor  and inductor on the GPS antenna 
input.
Well there is a catch to  that.

If you connect the resistor externally say through a tee  connector it will
work.
If you connect it across the GPS receiver it  will not work.
That connector is isolated from the input antenna connector.  As handy as it
is its useless.

It turns out Q5 is the antenna sense  transistor and the lead next to J7
connects directly to the center pin of  the Antenna connector.
Connecting a 180 ohm or who knows 200 or more ohm  will fake the system out.
The big fat trace coming from J7 is ground.  Simply solder the resistor to
the transistor and that ground and its  done.
Regards
Paul
WB8TSL
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