[Elecraft] KX3: iPad spectrum display

2012-12-01 Thread Jim Sheldon
Having seen the KX3 producing a spectrum display (although without actual 
frequency information from the radio itself) on an Apple iPad at the Plano, TX 
hamfest, and finally getting my own KX3, I started looking for a way to do this 
myself.  

The free iSDR app will produce the display if you can get the KX3's I and Q 
outputs into the iPad via some sort of sound card device.  Turns out that at 
least some of the iPads can accept USB input from some supported devices 
through an available camera adapter which has the input connector to the iPad 
on one end and a female USB connector on the other end of a short cable.  The 
audio device I found that most everyone used was the Griffin Technologies iMic, 
but after getting one of the new 16Gig iPad's this afternoon, none of the 
stores in the Wichita area had even heard of the iMic let alone had one in 
stock.  

I had been using a TASCAM US-100 USB sound card to capture high quality stereo 
audio on my laptop rather than try to use the microphone input and for grins 
and giggles, I plugged it into the camera adapter and hooked up the KX3's I/Q 
cable to the stereo line input.  Got no results until I remembered to turn on 
the I/Q outputs in the KX3's menu -- BINGO, works like a champ and with the 
super high resolution Retina display on the new iPad, it really looks nice.  

Now, I had to quit playing with it and put the iPad back on the charger which, 
unfortunately uses the same input as the camera adapter - LOL.  Tomorrow I'll 
have to learn how to run Ham Log without a pigtail for the time being until 
the supplier gets back from his travels in a few days and I can order one.  

Jim - W0EB


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Re: [Elecraft] KX3: iPad spectrum display

2012-12-01 Thread Giampiero Raschetti
Good job
Griffin iMIc interface can easily be found on amazon.

Giampiero - IW2ESL
 

Sent from my iPad

On Dec 2, 2012, at 2:48 AM, Jim Sheldon w...@cox.net wrote:

 Having seen the KX3 producing a spectrum display (although without actual 
 frequency information from the radio itself) on an Apple iPad at the Plano, 
 TX hamfest, and finally getting my own KX3, I started looking for a way to do 
 this myself.  
 
 The free iSDR app will produce the display if you can get the KX3's I and Q 
 outputs into the iPad via some sort of sound card device.  Turns out that at 
 least some of the iPads can accept USB input from some supported devices 
 through an available camera adapter which has the input connector to the iPad 
 on one end and a female USB connector on the other end of a short cable.  The 
 audio device I found that most everyone used was the Griffin Technologies 
 iMic, but after getting one of the new 16Gig iPad's this afternoon, none of 
 the stores in the Wichita area had even heard of the iMic let alone had one 
 in stock.  
 
 I had been using a TASCAM US-100 USB sound card to capture high quality 
 stereo audio on my laptop rather than try to use the microphone input and for 
 grins and giggles, I plugged it into the camera adapter and hooked up the 
 KX3's I/Q cable to the stereo line input.  Got no results until I 
 remembered to turn on the I/Q outputs in the KX3's menu -- BINGO, works like 
 a champ and with the super high resolution Retina display on the new iPad, 
 it really looks nice.  
 
 Now, I had to quit playing with it and put the iPad back on the charger 
 which, unfortunately uses the same input as the camera adapter - LOL.  
 Tomorrow I'll have to learn how to run Ham Log without a pigtail for the 
 time being until the supplier gets back from his travels in a few days and I 
 can order one.  
 
 Jim - W0EB
 
 
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Re: [Elecraft] KX3: iPad spectrum display

2012-12-01 Thread Andrew Moore
I originally tried a stereo USB sound card but found that the iPad didn't
recognize it. Ended up going the iSDR / Griffin iMic route, through the
Apple camera connectivity kit, and it worked. I ordered the Griffin through
Amazon because, as you have found, the local stories 1) never heard of it
and 2) don't carry it.

73,
--Andrew, NV1B
maineware.net
..

On Sat, Dec 1, 2012 at 8:48 PM, Jim Sheldon w...@cox.net wrote:

 Having seen the KX3 producing a spectrum display (although without actual
 frequency information from the radio itself) on an Apple iPad at the Plano,
 TX hamfest, and finally getting my own KX3, I started looking for a way to
 do this myself.

 The free iSDR app will produce the display if you can get the KX3's I and
 Q outputs into the iPad via some sort of sound card device.  Turns out that
 at least some of the iPads can accept USB input from some supported devices
 through an available camera adapter which has the input connector to the
 iPad on one end and a female USB connector on the other end of a short
 cable.  The audio device I found that most everyone used was the Griffin
 Technologies iMic, but after getting one of the new 16Gig iPad's this
 afternoon, none of the stores in the Wichita area had even heard of the
 iMic let alone had one in stock.


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