Ports: 2 Ports: Cw; Nd Fsk - microHAM micro KEYER 2R Manual

The virtual port used for FSK can also support PTT (required by MMTTY). When you use MMTTY,
select the PTT box and RTS will used for PTT. Do not use the FSK port for any other function.
TIP: If you see a baud rate other than 45.5 baud (e.g., 4800 or 9600), the application is NOT
configured correctly for FSK RTTY operation.
FSK data flowing through the channel is indicated by green arrow.
To test FSK from Router to the radio, click on the Test button with no port assigned or the port closed.
The Test button will generate "RY" two times.
Note: Select RADIO1 or RADIO2 (as appropriate) with the buttons on MK2R when testing.
The second FSK channel is identical to the primary FSK channel.
The second FSK port is useful when operating split with radios that have two receivers (e.g., FT-1000, FT-
2000, FT-9000, Orion or IC-7800). The second instance of the RTTY program should specify "right
channel" for its audio source and should be configured to use the 2
without a second receiver can use the 2
algorithm to provide diversity decoding and allow FSK from either program.
By its very nature, USB is not well suited to transfer the real time events required for CW keying. In
addition to the latency inherent in the USB protocols, there are also latencies caused by computer CPU
load, internal Windows message processing (inter-process communication) and data flow from another
peripherals sharing same the USB hub. This can result in transmitted characters that are garbled. To
minimize these unwanted operating system effects Router uses a specially developed oversampling and
prediction algorithm to assure the smoothest possible transfer of control signal events over USB. Using
this principle, CW keying in the Router is, in most cases, usable up to 50 WPM if the application generates
keying signals accurately and does not consume 100% of CPU time at the highest priority class.
Router allows assigning a virtual serial port for software CW using DTR or RTS signals. The DTR* and
RTS* are identical to DTR/RTS except that the output is inhibited for one second after the COM port is
opened. RTS*/DTR* should only be used with programs that cause unwanted key-ups during startup.
TIP: More applications use DTR for CW than RTS.
When an application opens the COM port (usually at
start-up), Router will indicate the channel is open.
The state of the CW channel is indicated by a red arrow. If port is opened, it does not mean that it is
properly configured. The red arrow will light in time with the transmitted CW when the port is properly
configured. To test CW operation, click on the Test button with no port assigned or the port closed.
Note: Select RADIO1 or RADIO2 (as needed) with the buttons on MK2R when testing.
microHAM © 2006 All rights reserved
2 nd FSK PORT
nd FSK port for another RTTY program using a different decoding
CW PORT
32
nd FSK port for its FSK output. Radios