Table of Contents
Advertisement
Router groups operating modes into three classes: CW, Voice (USB, LSB, AM and FM) and FSK/DIGITAL.
The available PTT options are:
CW:
PTT1 (microphone jack),
QSK (no transceiver PTT, PA PTT and LNA PTT include only PA/LNA PTT tail)
Semi Break-in (no transceiver PTT, PA PTT and LNA PTT include PTT tail and PA/LNA PTT tail)
PTT2 (rear panel jack).
VOICE:
PTT1 (microphone jack)
PTT2 (rear panel jack).
FSK/DIGITAL:
PTT1 (microphone jack),
PTT2 (rear panel jack),
PTT1 & PTT2 (both jacks).
PA PTT: Enables PA PTT
LNA PTT: Enables LNA PTT
Sound card PTT: Enables automatic PTT when the sound card is producing audio. The presence of sound
card audio presence is indicated by yellow SC led on front panel.
CW in VOICE: Enables CW output in Voice modes. Please note, this function must be supported by the
transceiver. CW in Voice always operates without transceiver PTT (Semi Break-in).
PTT lead: Specifies lead-in delay.
In CW with PTT1, PTT2 or Semi Break-in, PTT lead
is the time between activation of PTT1, PTT2, PA
PTT and LNA PTT and the first CW output.
Transceiver PTT (PTT1/PTT2), PA PTT and LNA
PTT all activate at the same time.
In CW with QSK, PTT lead has no effect. The
leading edge of PA PTT and LNA PTT are coincident
with the CW output.
In VOICE and FSK/DIGITAL, PA PTT and LNA PTT
lead transceiver PTT (PTT1 or PTT2) by the amount
of PTT lead.
PTT tail: Defines how long PTT 1 or PTT2 remains closed
after the last CW character. PTT tail can be set to a
constant value or can be proportional to the CW
speed between seven (1.00 wordspace) and ten
(2.00 wordspace) dot lengths.
PA PTT tail: Defines the time that PA PTT remains closed
after transceiver PTT (PTT1 or PTT2) and/or PTT IN
opens when switching from transmit to receive.
LNA PTT tail: Defines the time that LNA PTT remains closed after transceiver PTT (PTT1 or PTT2) and/or
PTT IN opens when switching from transmit to receive.
NOTE: LNA PTT tail should always be greater than or equal to PA PTT tail.
microHAM © 2010 All rights reserved
36
Hide quick links:
Advertisement
Table of Contents
