[Elecraft] Cannot transmit RTTY with internal K3 sound card using MITTY

Dear Reflector gurus, Using my internal K3 soundcard, I can receive RTTY OK, but cannot transmit using MITTY. I am using the internal K3 soundcard (ugraded my K3 with the K3S parts). The MITTY Option(O) has the proper Input and Output device selected (the internal K3 soundcard codecs). Asking

[Elecraft] RF Gain Calibration failure

K3 SN 8341 kit, 100w final not yet installed. Finishing up the calibration sequences. Downloaded the Mac version of the K3 Utility and started it. Connected Mac Mini to K3 using supplied KUSB. A very good silver-plated 2 foot jumper is between the K3 ANT1 jack and a Heathkit Cantenna. The KUSB

[Elecraft] KAT2 completion problem

I've been working very slowly on a KAT2, and everything was going well and checking out correctly. All the relays are working, and I finally arrived at the C55 Bridge Null Adjustment step. When I put the K2 into TUNE, I got a Hi Curr on the panel, and no output power. Not only that, but an

[Elecraft] Connector woes

The previous owner of my K2 who built it, put the main-board P3 and P6 connectors in backwards. That is, the index tab is facing the rear of the K2, rather than the front. Reason this came up: I was finishing up the internal KAT2 tuner, and realized through an ohmmeter check the connector was

[Elecraft] K2 key-down issue

I've got an early K2 SN 2608, with 2 problemsand Field Day is almost here :-( I have a key plugged into the rear key jack, and the Menu set to Paddle - Hand Key. When I key the radio, it stays key-down until I unplug the cable from the K2. I've borrowed another K2, and using the same cable

[Elecraft] K2 BFO problem, need JFET advice

Symptom: K2 with very low audio output, only the strongest stations can be copied. Have eliminated the BPF, attenuator, pre-amp, and so forth with signal tracing. Transmit stops increasing at about 4W, the control runs out of effect. So the K2 is alive, but something is wrong in the signal path.