BT Microphone Operation
(1) Channel/Frequency Selection
When the BT Mic is connected with D578UV radio, the CH+/
CH- buttons will default to Volume UP/DN. A short press of
the top [POW] button will toggle the top CH+/CH- button to
a channel selection / frequency selection function. The two
left and right top buttons are for channel selection when
in channel mode, and for frequency programming when in
frequency mode.
Notice: Entering the channel number (4 digits) or frequency
with the keypad will also switch to the selected channel/
frequency.
(2) Zone Selection
When the BT Mic is paired with the D578UV radio, pressing
the Up/Dn button on the front panel of the BT Mic in channel
mode will switch to a dierent zone. Please note there is a
slight delay between the push of the up or down button and
the actual change of the Zone
(3) Volume Adjust
In Standby mode, a short press of the top [POW] button
will switch the top CH+/CH- buttons to become the volume
adjustment. The BT Mic will display a message that this
change has been done. Notice: If you believe that the volume
set by the top two buttons is too high or too low, you can set
the “RfBT Spk Gain” under the Menu/Bluetooth of the BT Mic
to a level between 1 and 5 and make sure the radio volume
is not set to 0 as then the BT speaker will be muted. You can
also, via the Menu, select if you want only the BT Mic speaker,
or both the BT speaker and the radio speaker to deliver the
sound. If you select the radio speaker, then the radio volume
controls are used to increase and decrease both the BT Mic
and the radio volume (the BT Mic volume up/down still works
for the BT speakers).
Function Operation
When the BT Mic is paired with the D578UV radio (via cable or
Bluetooth), all of the D578UV functions can be operated from
the BT Mic. Note: The front P1 through P6 on the radio does not
function when the BT Mic is used. The volume controls must
not be set at 0 to give the BT Mic its volumes – any position
except 0 is valid.
P1 to P3 Programming
The BT Mic has 3 programmable buttons below the PTT on
the left side. The function of these needs to be programmed
independently from the P1 – P6 on the radio using the BT Mic
Menu under Settings/Radio Set/Key Func. Due to Bluetooth
communication, the result of pushing one of these 3 buttons
may take up to 5 seconds to implement. Have patience.
Orginal Author: Trygve Svärd, KD0PNQ | Powerwerx Rev 12/9/2022
Power O
In Standby mode, press the top [POW] button for 5 seconds or
until the display powers o.
When the BT Mic is paired with the D578UV radio, the BT Mic
will automatically power o when the D578UV is powered o
with its front power button. The D578UV can be returned to
local operation by pushing the “EXIT” button on the radio, or
by turning o the BT Mic.
Microphone Cable
The BT Mic is delivered with a 2 feet coiled cable. To use this
cable make sure you set the BT Mic during power up to “Cable
Mode” before you connect the BT microphone to the D578UV
radio with the cable. When the cable is in use, the D578UV
radio will supply power to the BT microphone, and the battery
inside the BT Mic will be charged from the radio. A standard
CAT5 cable of longer length may be used if the power from the
radio is desired for the BT Mic.
Battery Capacity
The built-in battery is a lithium type battery which may be
sensitive to extreme cold temperatures. The battery typically
will last for 12+ hours when the BT Mic is connected to the
radio via Bluetooth and the display is on constantly. When
connected with the cable to the radio, the battery is being
charged from the radio.
