Technical Characteristics - PRESIDENT BILLY Owner's Manual

2) VOLUME:
To increase the sound level, turn this knob clockwise.
3) SQUELCH:
Suppresses undesirable background noises when there is no communication.
Turn the squelch knob clockwise to the exact point where all background
noise disappears. This adjustment should be done with precision as, if set to
maximum, (i.e. fully clockwise) only the strongest signals will be received.
Squelch does not affect neither sound nor transmission power, but allows a
considerable improvement in listening comfort.
4) DISPLAY:
The display shows the working channel.
5) TRANSMISSION INDICATOR:
Lights up when you depress the PTT of the microphone (8) to go into
transmission mode.
6) CHANNEL SELECTOR: "CH ▲ ▲ ▲ ▲ ▲ and CH ▼ ▼ ▼ ▼ ▼ " SWITCHES
Those switches on the front panel allow to go up or down the channels.
7) MICROPHONE PLUG
8) PTT (Push-to-talk)
9) MOUNTING CRADLE
10)ANTENNA CONNECTOR
11)POWER CORD
12)ADJUSTMENT WHEELS
C) TECHNICAL CHARACTERISTICS
1) GENERAL:
- Channels
- Modulation modes
- Frequency ranges
- Antenna impedance
- Power supply
- Dimensions (in mm)
- Weight
- Supplied accessories
2) TRANSMISSION:
- Frequency allowance
- Output power
- Transmission interference
- Audio response
- Emitted power
in the adj. channel
- Microphone sensitivity
- Modulated signal distortion
3) RECEPTION:
- Maxi. sensitivity at 20 dB sinad
- Frequency response
- Adjacent channel selectivity
- Maximum audio power
- Squelch sensitivity
- Frequency image rejection rate
- Intermediate frequency rej. rate
23
: 40
: AM
: from 26.965 MHz to 27.405 MHz
: 50 ohms
: 13.2 V
: 115 (L) x 200 (H) x 40 (D)
: 0,6 kg
: Electret microphone with support,
mounting cradle, screws.
: +/- 300 Hz
: 1 W
: inferior to 4 nW (- 50 dBm)
: 300 Hz to 3 KHz
: inferior to 20 µW
: 10 µV
: 2,5 %
: 0.5 µV - 113 dBm (AM)
: 300 Hz to 3 kHz in AM
: 70 dB
: 3 W
: adjustable,< 1 mV - 47 dBm
: 80 dB
: 80 dB