Re: [Elecraft] KX3 Amp

Hi Giff K1GAH, I am in progress of building my own amp according to the Motorola EB-104 application note; www.ab4oj.com/dl/eb104.pdf 5-10W in, about 600W out depending on your DC supply, all-transistor-amp using four MRF-150 power FET's. Remember to add a low-pass filter after the amp.

Re: [Elecraft] K2/100 - Info 080 message

Hi Tom / Don, I had a similar intermittent problem, when dissasembling and re-assembling my K2 /100 #6936 during installation of the XV-60 module. All my efforts attempting to debug the problem were unsuccessful, and in the end I suspected that I had killed U1 (or some other PIC) by mistake.

[Elecraft] Kx3: How to interface UP, DOWN and PTT signal ?

Hi, For the 4-pin mic pinout for the MH-3 microphone, it is listed that the PTT line also carries logic for UP and DOWN keys. As I want to interface using a Heil Traveller headset, which has the UP and DOWN key signals on a seperate line (8-pin round standard), how are the logics defined

Re: [Elecraft] soldering SMD's

Hi Mike VE3WDM, I reccomend you to watch this solder tutorial on Youtube, to provide you tips to a good solder result for SMD tacking methods: http://www.youtube.com/watch?v=ZCwK40KUNRg The advantage of the bump-tack-method is that you will only have to steady the component for a few seconds

Re: [Elecraft] Fwd: sending computer morse?

Agree - for contesting I've been using Win-test, keying it with RTS, even through a USB to serial adapter for the configured CAT com port. Usually I key in 28-35 WPM, and with sound OFF on the computer, it works fine. Only rarely it messes up the timing of the CW code, but in practice it

[Elecraft] Repost: KX3 ACC1 interface - logic signal levels - what is official Elecraft standard for this ?

? -Does anyone have a schematic of the ACC1 interface for Kx3 that I can take a look at ? 73' Brian OZ2BRN Den 21-Sep-12 08:34, Brian Lodahl OZ2BRN skrev: Hi Kx3 users, Other posts have previously dealt with the issue that the standard KXUSB cable for Kx3 does not support CW keying from

[Elecraft] KX3 ACC1 interface - logic signal levels - what is official Elecraft standard for this ?

Hi Kx3 users, Other posts have previously dealt with the issue that the standard KXUSB cable for Kx3 does not support CW keying from the computer to the Kx3 radio, simply from the fact that as opposed to the ordinary serial connection (old RS-232 standard), the RTS and CTS pins are not