Key, Keyer, And Computer-Driven Keying; Interconnections - Yaesu FT DX 3000 Operating Manual

i i
nsTallaTiOn anD nTercOnnecTiOns
K , K , c -d K i
ey eyer And oMputer riven eying nterconnectionS
The FT 3000 includes many features for the CW operator. These functions will be detailed in the "Operation" section
DX
later. Besides the built-in Electronic Keyer, two key jacks are provided, one on the front and one on the rear panel, for
convenient connection to keying devices.
The Menu selections allow you to configure the front and rear panel KEY jacks according to the device you wish to con-
nect. For example, you may connect your keyer paddle to the front panel KEY jack, and use Menu item "018 KEYER F
KEYER TYPE" for paddle input, and also connect the keying line from your personal computer (which emulates a "straight
key") to the rear panel KEY jack, and configure the rear panel jack using Menu item "020 KEYER R KEYER TYPE".
Both KEY jacks on the FT 3000 utilize "Positive" keying voltage. Key-up voltage is approximately +3.3V DC, and
DX
key-down current is approximately 0.3 mA. When connecting a key or other device to the KEY jacks, use only a 3-con-
tact ("stereo") 1/4" phone plug; a 2-contact plug will place a short between the ring and (grounded) shaft of the plug,
resulting in a constant "key-down" condition in some circumstances.
Page 12 F T 30 00 O M
DX peraTing anual