Other Devices That Can Be Connected - Yaesu FTM-400XDR/DE Operating Manual

Using the Radio with an External Device Connected
16
Press for one second or longer
The display will return to the previous screen.
Packet communication will be enabled.
17
Choose the band and frequency according to the settings in the set-up menu
18
Turn of the receive band
The output level to TNC from the radio will be set.
19
Adjust the TNC output level
The input level to the radio will be set.
Caution
When transmitting a large volume of data, the transmission time gets longer and the radio will get
heated up. When transmission continues for a long period of time, the overheating prevention circuit
will act to lower the transmit power output. When transmission is continued further, transmission will
be suspended automatically and the radio will go into the receive mode in order to prevent failure due
to overheating.
When the overheating prevention circuit is activated and the radio goes into the receive mode, either
switch turn OFF the power, or wait until the temperature drops in the reception mode.
Other devices that can be connected
● External speaker
An optional high output and high sound quality waterproof external speaker "MLS-
200-M10" can be connected.
Plug the external speaker into the [EXT SP] jack at the back of the main body.
Tip
When an external speaker is connected to the [EXT SP] jack, there will be no sound from the internal
speaker.
If you connect an External Speaker other than the MLS-200-M10 to the [EXT SP] Jack,
use a Stereo Speaker only (Do not connect a Monaural Speaker plug directly into the
[EXT SP] Jack.)
If you wish to connect a Monaural Speaker to
the [EXT SP] Jack, use the supplied "Stereo to
Monaural Plug" (see figure).
166
Monaural Speaker Plug
Stereo to Monaural Plug