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USB Device Router
 
The requirements of application is different and is hard to find universal setting for all the programs you might use.  For easy application and mode switching, Router has twelve configurable presets. You can store different sets of keyer settings to these presets, rename each preset and switch between presets in a second at the touch of a button.
 
Router software has several tabs. The top level tab represents the device itself.  If the computer is connected to two or more keyers or several microHAM USB interfaces, each USB device will have its own top level tab.  The top level tab can be renamed to indicate which device (e.g., USB interface: TS-870) it represents. 
 
Below each top level device are one or more tabs - DIGI KEYER has three tabs.  Each tab configures some function of the device.  
 
Ports
 
 
Here you can assign each function to a virtual COM port.  Router allows you to create as many virtual COM ports as you need.  Three ports are generally sufficient: one for radio control (CAT), one for FSK and one for PTT/CW.  This screenshot displays COM4 to COM6 (COM 1 and COM2 are physical COM ports and COM3 was the internal modem on the test computer).
 
Keying
 
 
The Keying tab provides access to three sets of functions:  Audio setup, PTT Set-up and keyboard FSK Functions.   
 
Audio:
This area provides peak and average reading LED style meters for each audio input.  You can use them to adjust the Main and Sub receiver audio controls for optimum operation of the internal Audio Codec.  The "TX" adjustment permits setting DIGI KEYER's maximum output to a level compatible with your transmitter's requirements.  
 
PTT: 
DIGI KEYER has three (3) PTT outputs: PTT, LNA PTT and PA PTT.  
 
PTT is present at the DB15 Radio Port connector and is designed to switch the radio to TX state.  PTT is normally wired to the radio accessory jack and with Kenwood or Yaesu radios permit muting the microphone input during digital modes operation.  
PA PTT is available at a rear panel RCA jack and is designed for power amplifier switching.
 
LNA PTT is available at a rear panel RCA jack and is designed for switching a LNA (low noise [receive] amplifier). 
 
The PTT source is configured at the PTT port on the Ports tab. 
 
 
FSK:
These settings control FSK from the optional PS/2 keyboard. 

Diddle LETTERS generates the "LETTERS" character if the transmitter is activated and nothing is being typed. 
 
UOS selects "Unshfit on Space" operation for keyboard generated FSK.  
 
Type ahead enables a buffer for keyboard entered text 
 
QWERTZ layout selects a QWERTZ keyboard layout instead of the default QWERTY
 
All these settings can be stored to DIGI KEYER as power up settings, applied immediately, or stored to any of the presets. 
 
 
Messages
 

 
On this tab you can define RTTY messages for keyboard generated FSK.  Up to nine memories, each up to 50 characters long can be stored in DIGI KEYER's memory. Each memory can repeat with a programmed delayed or can be chained to another memory.  
The "Jump to" combo box is used for repeating or chaining messages.  The delay before starting the next message can be set in the delay box. You can test a message by pressing "Test" button or save it to memory by pressing "Store" button.  All messages can be stored at once by pressing "Store All" button.  All messages can be backed up and restored using "Save to File" and "Load from File." 
 
Messages can also be stored and played while using an external keyboard connected to DIGI KEYER's "Remote" jack.  Changing presets has no effect on messages.
 
Presets
 

 
As already mentioned, you will soon find each program may need a unique set of audio switching or virtual serial port assignments.  In addition, each mode may require its own unique settings.  For easy switching between programs or modes you can use preset buttons.  All settings from the Ports, Audio, PTT/FSK and CW/WinKey" tabs can be stored to any one of the preset buttons. Up to 12 presets are allowed, each can switch the keyer to different settings. These buttons can be renamed  to reflect their function. 
 
Note: Due to differences among transceivers, all functions may not be available in every supported transceiver.  Due to differences in capabilities among transceivers, Router and/or DIGI KEYER may not utilize rear panel audio input, microphone muting and/or FSK for all supported radios.  These functions represent enhanced support and their absence does not mean that a transceiver is unsupported. 
 
 
Firmware
 
These settings are valid for the current Router and firmware.  As we add more features and functions, the upgrades will be for to all DIGI KEYER owners.  Due to the FLASH core technology of the internal microcontroller, changing firmware is as easy as installing new version of the computer software. No special hardware of software is required. Upgrades can be downloaded from www.microHAM.com and uploaded to CW KEYER with router software. 
 

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