the FSK connection

Transceivers capable of [:AFSKFSK:FSK] operation generally provide a [http://en.wikipedia.org/wiki/Transistor–transistor_logic TTL] input (voltage levels +5 VDC, 0 VDC) that controls the switching between Mark and Space frequency generation:

WinWarbler can be configured to generate this signal

or

All of these signals employ [http://en.wikipedia.org/wiki/Rs232 RS-232] voltage levels (+12 VDC, -12 VDC), so an external level converter is required. This can range from a simple one-transistor circuit to a section of a commerical interface.

To use the


[:Multimode_Setup:Setting up CW, Phone, PSK, and RTTY Operation]

[:Operation:Getting Started with CW, Phone, PSK, and RTTY Operation]

[:GettingStarted:Getting Started with DXLab]