[Elecraft] kxusb question

[Harry Yingst]

I worked with the Icom CI-V interface years ago when I was building frequency agile remote bases

The CI-V is TTL  (5 volts),


While I have not put an Elecraft KXUSB on a scppe to look at the signal levels I'm gong to say No.
My logic is that the Elecraft May be able to use TTL, The Elecraft Will use RS-232 Levels

If you look at the Elecraft W2 Manual it shows how to wire an interface that goes directly to the DB-9 Pins
(I'm using the W2 here because it's easy to see what is going on) upon looking at the schematic for the W2
you can see how they are level converting from Serial levels to TTL Levels.

In short Elecraft builds the Level converter into the gear Icom does Not.
Additionally Icom ties the TX&RX lines together.








________________________________
From: barry whittemore <wb1edi at hotmail.com>
To: Elecraft <elecraft at mailman.qth.net> 
Sent: Sunday, May 7, 2017 8:04 AM
Subject: [Elecraft] kxusb question



I have a KXUSB and was wondering if i can use it with an ICOM 706. I am going to do a trip with the 706 for the June VHF contest and think it is basically the same except that it has a stereo plug and the 706 is mono. is the ring in the KXUSB used? I do not wish to damage either thing.


Thanks


Barry


NF1O

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