Basic Operation - Yaesu FT-1500M Operating Manual

Burst tone produced by the MH-???? microphone.
Typical connections to a TNC are shown below.
1200 bps Packet Setup
9600 bps Packet Setup
Finally, note that Menu ("PCKT") allows you to enable or disable the microphone during packet
operation. Normally, the default setting ("Microphone Disabled during Packet TX") is appropriate;
when the microprocessor detects PTT input from the Data connector, the microphone will be disabled.

Basic Operation

Power On and Off
Press the PWR switch momentarily to turn the radio on.
To turn the radio off, press and hold in the PWR switch for one second.
Adjusting the Volume Level
Rotate the VOL control to adjust the receiver volume. Clockwise rotation increases the audio output
level.
Squelch Setup
The Squelch system is designed to keep the receiver quiet until a signal is received. The Squelch
should be adjusted to the point where the background noise is just silenced; any "higher" setting will
reduce the receiver' s sensitivity to weak signals.
To adjust the setting of the Squelch system:
1. Rotate the Main Dial to select a clear frequency (where no signals are present).
2. Press and hold in the [MHz] key for one second, then rotate the Main Dial knob to select "SQL."
3. Press the [MHz] key momentarily, then rotate the Main Dial knob to select the squelch threshold
level (OFF, or 1 to 15). While you are making this adjustment, you will be able to hear the
background noise appear when the Squelch setting is too low. The best sensitivity will be realized
when the Squelch is set to one number past the point where noise is muted.
4. Press and hold in the [MHz] key for one second to save the new setting and exit to normal
operation.
Transmitting
To transmit, simply close the PTT (Push To Talk) switch on the microphone when the frequency is
clear. Hold the microphone approximately 25 mm (1") from your mouth, and speak into the
microphone in a normal voice level. When your transmission is complete, release the PTT switch; the
transceiver will revert to the receive mode.
Tuning: The "DIAL" (VFO) Mode
This mode is used for selecting a frequency utilizing the Main Dial knob and microphone [UP] and
[DWN] buttons allow the Variable Frequency Oscillator (VFO) to tune in the selected step size. When
scanning in the VFO mode, the same steps are used as in manual tuning.
Clockwise rotation of the Main Dial knob increases the operating frequency, while counter-clockwise
rotation tunes toward a lower frequency.
To move frequency rapidly (in 1 MHz steps), press the [MHz] key momentarily, then rotate the Main
Dial knob. The 1 MHz digit of the frequency display will blink while "1 MHz Tuning" is enabled.
When you have selected the desired "1 MHz" frequency digit, press the [MHz] key momentarily once
more, then resume normal tuning using the Main Dial knob.
Direct Keypad Frequency Entry
The keypad of the MH-?? DTMF Microphone may be used for direct entry of the operating frequency.
It also may be used for recall of memory channels.