Specifications

PTT – T/R KEYING

DIGI KEYER has three (3) PTT outputs: PTT, PA PTT and LNA PTT. PTT is brought out to the DB15

Radio connector. PA PTT and LNA PTT are available on RCA connectors at the DIGI KEYER rear panel.

PTT is normally wired to the radio Accessory jack

and is used to switch the radio into

transmit.

PA PTT is present at the DIGI KEYER rear panel

RCA jack and is designed for switching a

power amplifier. PA PTT is enabled by

checking the PA PTT box.

PA PTT will close before transceiver PTT by

the amount of selected PTT Delay and will

open at the same time as the transceiver

PTT.

LNA PTT is present at the DIGI KEYER rear panel

RCA jack and is designed for switching

(bypassing) a low noise preamplifier (LNA)

during transmit. LNA PTT is enabled by

checking the LNA PTT box.

LNA PTT will close before the transceiver

PTT by the amount of selected PTT Delay

and will open after the transceiver by the

same amount.

Serial port PTT: selects whether PTT is enabled.

PTT delay: amount of delay between actication of PA PTT and LNA PTT

and the activation of the radio PTT. 0 to 2500 milli-seconds.

PA PTT: Enable PA PTT output

LNA PTT: Enable LNA PTT output

FSK from Keyboard

If an external PS/2 keyboard is attached to the DigiKeyer, Router supports additional settings for FSK.

Diddle LETTERS will generate the "LETTERS" character if nothing is

being typed

UOS automatically generates the "Unshift on Space" function when

checked

Type ahead enables a type ahead buffer for the keyboard.

QWERTZ layout configures DigiKeyer for the alternate keyboard layout