R1.1
Copyright © 2016 SDRplay Limited
27
SDRuno User Manual
10.4 Tmate controls
Currently the Tmate controls are implemented as follows:
10.4.1
TUNING KNOB
Tmate employs a 128 steps/turn optical encoder. Each step corresponds to a given increment/decrement
of the VRX tuning frequency and it is the same used for the mouse wheel (see 2.7
– 2.8). The current
tuning step is shown in the RX Control window to the left of the frequency dial. When the spinning speed
exceeds a certain threshold, a multiplying factor of 5X is applied to the current step; this feature is quite
common in traditional (hardware) receivers and transceivers. The knob can be locked (see below).
10.4.2
F1 – DECREASE STEP
This button decreases the tuning step to the next lower value (if available).
10.4.3
F2 – INCREASE STEP
This button increases the tuning step to the next higher value (if available).
10.4.4
F3 – KNOB LOCK
This button locks/unlocks the tuning knob; the locking status is indicated in the RX Control window, to the
left of the frequency dial.
10.4.5
F4 – MUTE
This button has the same effect of the MUTE button inside the RX Control window. Please note that the
tuning step, lock and mute options are independent for each VRX.
10.5 Tmate 2 controls
Currently the Tmate controls are implemented as follows:
Rotary encoders:
10.5.1
MAIN ENCODER (TUNING KNOB)
Tmate employs a 32 steps/turn encoder. Each step corresponds to a given increment/decrement of the
VRX tuning frequency and it is the same used for the mouse wheel. The current tuning step is shown in
the RX Control window to the left of the frequency dial and also in the Tmate 2 display. When the spinning
speed exceeds a certain threshold, a multiplying factor of 5X is applied to the current step; this feature is
quite common in traditional (hardware) receivers and transceivers. A further increment in speed triggers a
10X multiplying factor. The knob can be locked (see below). Pushing the tuning knob selects the current
VFO (A
– B).
