Re: [Elecraft] K2: Positive or Negative CW Keying? Again

2006-07-29 Thread Bill Coleman
On Jul 16, 2006, at 10:40 PM, Bernard Gaffney wrote: Does the K2 use Positive or Negative keying voltage when keying CW via external keyer? Just curious, as the WinKey Keyer (non-HV USB version) is only capable of keying positive voltages up to 50VDC, and is not compatible with XMTR's that use

[Elecraft] K2: Positive or Negative CW Keying? Again

2006-07-16 Thread Bernard Gaffney
Ignore last message -- an oops. Hit wrong key and sent it before I meant to. SORRY! Does the K2 use Positive or Negative keying voltage when keying CW via external keyer? Just curious, as the WinKey Keyer (non-HV USB version) is only capable of keying positive voltages up to 50VDC, and is not

RE: [Elecraft] K2: Positive or Negative CW Keying? Again

2006-07-16 Thread Ron D'Eau Claire
It's +5.6 VDC open circuit to ground and the keying circuit needs to sink less than 1 mA to key the transmitter. Ron AC7AC -Original Message- Does the K2 use Positive or Negative keying voltage when keying CW via external keyer? Just curious, as the WinKey Keyer (non-HV USB version) is

Re: [Elecraft] K2: Positive or Negative CW Keying? Again

2006-07-16 Thread Jack Brindle
Bernie; Winkey works just fine with the K2. Just hook it up. You should follow the connection diagram shown in the K2 manual, either connecting tip and the small ring together or using two 1N4148 diodes on each side to make sure the two circuits get shorted to ground at the same time.