[Elecraft] K3-RTTY-No Diddles

[Don Wilhelm]

Paul,

Details on how you are connecting the DKII FSK output to the K3 please.

A quick perusal of the DKII information indicates to me that the FSK 
output is from a computer COM port - which to me indicates that it is 
RS-232 levels.
Those RS-232 levels must be converted to TTL levels by a "one transistor 
keying circuit" and the output of that circuit applied to the K3 ACC 
connector pin 1.

The fact that you have a single tone indicates to me that you do not 
have anything connected to the K3 ACC connector that will pull pin 1 to 
ground.   That means that the K3 will generate the space tone, but there 
is nothing to tell the K3 to change the tone to a mark tone.

73,
Don W3FPR

On 2/7/2015 3:44 PM, paul ecker via Elecraft wrote:
> Ihave a K3 (entire K-Line). Win 7 PC 3.5ghz processor 16gb ram; MicroHam DKII Interface. Withthis setup I am able to successfully do PSK31 using HRD-DM780, WSJT-X andJT65HF, WSPR and run N1MM+ successfully in SSB and CW - both RX & TX. Myproblem is with MMTTY both running byitself or as the engine in N1MM+. I can receive just fine but when it comes to transmitting,all seems to work well- but I  get no "diddles". The mode is FSK. Better said,when MMTTY goes to Tx, I get a red Tx  light on the K3, a solid green PTT and aflashing  green FSK light on the DK II  but I hear a Solid Tone fromK3 audio and No Diddles. I have also tried RTTY using DM-780 and get same result, no diddles. I have contacted other K3/MicroHam/DK II users who aresuccessfully using MMTTY and compared configurations, but found no differences.I have contacted MicroHam tech support and ran some tests suggested by them but found no problems with the interface. So I am wondering if there may some item in theK3 configuration that I have missed that is leading to "No Diddles".If needed I can get into further detail on MMTTY & DK II settings, orcurrent K3 configuration. I did not include in this posting for brevity sake.  Hope someone can help me solve my Diddleissue.
>
>