Dishtronix, Inc.
Dx2400l1 instruction manual rev00.doc 06-10-18 5.14
Page 15/44
2.7
PTT QSK Operation
{QSK operation with Transceivers WITHOUT Full Loop Keying}
It is possible to run QSK style operation with the amplifier using a non QSK or vintage exciter.
Figure 3 details this installation.
For QSK operation connect the external straight key (or
external
electronic keyer –
Do not use
the keyer inside the exciter!
) directly to the amplifier KEY IN connector. Connect the amplifier
KEY OUT line directly to the exciters CW KEY INPUT. Note that the exciter PTT out line must
be connected to the amplifier PTT IN line. When using non QSK operation such as semi break in
CW, SSB, AM, or FM modes, deactivate the amplifier front panel QSK mode and T/R operation
will be as described in the SEMI AUTOMATIC BREAKIN paragraph above. When CW
operation is desired, activate the front panel QSK mode. When the key is activated, the amplifier
will sequence the T/R relays to the transmit position. The amplifier internal circuitry will delay
the CW keying pulse a short period until the T/R relays are ready, and then pass the pulse to the
amplifier KEY OUT line. Since this line is connected to the exciter CW KEY jack, the exciter
will go into transmit immediately and the amplifier will be ready. When the key is released, the
amplifier KEY OUT line is immediately released allowing the exciter to return to receive mode.
The amplifier relays are held in the transmit position for a short time until RF quits flowing and
then are released to the receive position.
Summary of Contents for DX2400L1
Page 11: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 11 44 2 INSTALLATION...
Page 19: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 19 44 3 OPERATION...
Page 41: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 41 44 5 SERVICE...
Page 44: ...Dishtronix Inc Dx2400l1 instruction manual rev00 doc 06 10 18 5 14 Page 44 44 NOTES...