Super Star 2400 User manual

Operation Manual
3600 Channels 5-Mode
AM/FM/USB/LSB/CW
Mobile Transceiver

General Description
The Super star 2400 is a combination transmitter-receiver designed primarily
for mobile Use. It employs the very latest technology to provide 240 cha-
nnels + 480 channels (+/-5KHz) if operation by means of digital frequency
synthesis with PLL (phase-locked-loop) circuitry. The use of PLL assures a
precise on-frequency operation on every channel in both transmit and rec-
eive mode. The Super Star 2400 also includes many other features which
will provide greater operating convenience and assure optimum communi-
cations under a wide range of conditions.
Operable on 240 channels divided into six groups of 40 channels.
3-way RF Gain switch.
Full noise reduction features - ANL and noise blanker.
5 modes of operation - CW, LSB, USB, AM, or FM - selectable with a rotary
switch.
Provision of PA.
Concentrically mounted Fine and Coarse controls to fine tune to any trans-
missions or operate in inter-channel frequencies.
Tone switch to select receive tonal quality in 2-way.
RF power output switchable in 3-way for required communication range.
TX lamp that indicates you are on-the-air.
External speaker jack for an extra sound source.
The transceiver is ready for connection to a 13.8 Volt DC only negative
ground system.
A high-sensitivity dynamic microphone equipped.
CAUTION
FOR REPLACEMENT OF THE
FUSE IN DC POWER CABLE,
PLEASE BE SURE TO USE
3,5A FUSE.
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Specifications
General
Frequency composition. PLL synthesizer
Frequency range. A 26.065 to 26.505 MHz
B 26.515 to 26.955 MHz
C 26.965 to 27.405 MHz
D 27.415 to 27.855 MHz
E 27.865 to 28.305 MHz
F 28.315 to 28.755 MHz
Channels. Total 3600: 240 5 MODE
240(+5 KHz) 5 MODE
240(- 5 KHz) 5 MODE
Frequency space. 10 to 20 KHz
Emission. AM/FM/USB/LSB/CW
Power source. 13.8 V DC (Only negative ground)
Receiver
Sensitivity. AM 1 micro-V @ 10 dB S/N
FM 1 micro-V @ 20 dB S/N
SSB/CW 0.5 micro-V @ 10 dB S/N
Selectivity. 60 dB
Audio Output. 2 W @ 8 Ohm
Fine Tune range. 800 Hz
Coarse Tune range.
Frequency. AM/FM 10.685 MHz/455 KHz
SSB/CW 10.695 MHz
Transmitter
RF power output. High Mid Low
SSB/CW (p-p) 12W 8W 2W
AM 7.5W 4W 1W
FM 10W 4W 1W
SSB generation. Double-balanced modulator with crystal
latice filter
Coarse Tune range. 5 khz
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Operating Controls and Features
(1) Off/Volume Control
Varies the sound output from the speaker. Also incorporates an on-off switch
at the extremely counterclockwise position.
(2) Band Selector
Selects a group of 40 channels in six positions -A, B, C, D, E, or F(240 in all).
(3) Squelch Control
Used to eliminate any annoying background noise when no signals are present.
The degree of sensitivity to incoming signals is adjustable. When the Squelch
control is rotated to the fully clockwise position, it provides maximum squelch;
in the fully counterclockwise position, it provides minimum squelch.
(4) Mode Selector
Selects the mode of reception and transmission - CW (continuant wave), LSB
(lower side band), USB (upper side band), AM (amplitude modulation), or FM
(frequency modulation).
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(5) Fine/Coarse Control
This is concentrically located control that permits individual adjustment of
receiving and/or transmitting frequencies.
Fine (inner knob). Provides fine tuning of the receiver section. On regular
AM and FM reception, this will permit adjustment to off-frequency transmis-
sions. In the SSB( either upper side band or lower side band) mode, this is
used as a voice clarifier to adjust for clearer voice reception. This control
will not affect the transmitter frequency.
Coarse Tune (outer knob). This control operates in the same manner as
the Fine knob except it provides adjust of both receive and transmit frequ-
encies.
(6) Channel selector.
A 40-detent rotary switch to select any of 240 channels in conjunction with
the band Selector switch.
Window above this switch indicates the channelss selected using an LED
(Light-emitting-diode) digital readout.
(7) TX indicator
Lights up when transmitting.
(8) Channel indicator
A digital LED display to show channel selected.
Turned off when operating PA.
(9) Power Selector
Enables you to select the RF power output of the transceiver in 3 ways:
High. In this position the transceiver produces full rated RF power for max-
imum communication range.
Middle. In this position, the RF power is medium level.
Low. In this position, the minimum RF power output is obtained, may be
used or short range communication.
Note. The RF power output level (W) which each position provides is depe-
ndent on the mode of operation. See Specifications section for specific RF
power output.
(10) Tone Switch
Changes tonal quality in receiving in 2 ways:
High. High tones in the sound output are emphasized.
Low. Low tones in the sound output are emphasized.
(11) CB-PA switch
When set to PA (lever down) position, the transceiver acts as a public add-
ress amplifier. Before operating PA, you must first connect an external PA
speaker (8 Ohm, More than 2 W) to the PA Speaker jack on the unit rear
panel.
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(12) NB switch
Activates the noise blanker circuit which is effective in reduction of impulse
type noise (ignition noise, etc.).
(13) ANL switch
Activates the automatic noise limiter in the audio. The ANL will be effective
in reduction of atmospheric (discharge) interference.
(14) RF Gain switch
Selects RF Gain (receiver sensitivity) of the transceiver in 3 ways:
DX. In this position. The receiver section provides maximum sensitivity so
that it can pick up even weak signals.
Normally this switch should be placed in this position.
Mid. In this position. The receiver sensitivity is medium, and may be used
when you desire to pick only strong or fairly strong signals.
Local. In this position, the receiver sensitivity is minimum, and the receiver
will pick up only the strong signals. May be used when receiving strong
(close) signals which are causing overload in receiving sound.
(15) Meter
Serves to dual purpose
When receiving, this meter gives the relative strength of incoming signals
in `s`units. When transmitting, this gives RF power output in lower scale.
(16) Microphone jack
Accepts plug from the microphone supplied. The jack has a locating key in-
side and allows the plug inserted in only one way. Do not force the plug but
align key way properly onto the jack.
(17) Microphone
Supplied With transmit pushbar (PTT) mounted at the left side.
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Rear panel Connection
(1) Antenna
Accepts a PL-259 type coaxial connector from the antenna lead-in cable.
(2) CW Key jack
Accepts a 3.5 mm 2-conductor phone plug to connect a CW key.
(3) External Speaker jack
Used to connect an external speaker (8 Ohm 4W) as an extra sound source.
Insertion of the plug from a speaker will silence the internal speaker auto-
matically.
(4) PA Speaker jack
Used to connect a PA speaker (8 Ohm 4W) for PA operation.
Before operating PA you must first connect a PA speaker to this jack.
(5) 13.8V DC jack
13.8 V DC power for the transceiver supplied through this socket (using DC
power cable supplied).
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ANT
CW EXT SP PA 13.8V DC

Mobil Installation
Before installing the transceiver in a car, truck, boat, etc., Be sure to choose
a location which is convenient to the operating controls, and will not inter-
fere with the normal functions of the driver. The transceiver may be mounted
to the underside of the instrument panel or deshboard of a car, truck, ect.,
By means of the special bracket that is supplied with the transceiver.
Power Connection
The transceiver is designed to operate from a battery source of 13.8 Volt DC,
in vehicles only negative ground system. The fused DC power cable supplied
is used to make the necessary power connection to the transceiver. The red
[fused] lead is connected to the positive [+] side of the electrical system in
the vehicle, and the black lead is connected to the negative [-] side of the
system.
Antenna Connection
RG-58/u cable is generally used to connect the CB antenna to the transceiver.
The cable should be terminated with a PL-259 connector for connection to
the antenna input on the transceiver.
12V Battery
Negative (-) Terminal
12V Battery
Negative (+) Terminal
Fuse
[3.5 Amp]
To DC power socket
on the transceiver
BLACK
RED
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Channel Selection
The transceiver is capable of operation on 240 channels which are divided
into 6 groups of 40 channels A, B, C, D, E and F. These groups are selected
with the Band Selector switch as the following.
Band switch
Position Frequency Range
A 26.065 to 26.505 MHz
B 26.515 to 26.955 MHz
C 26.965 to 27.405 MHz
D 27.415 to 27.855 MHz
E 27.865 to 28.305 MHz
F 28.315 to 28.755 MHz
After the band to which the channel you desire to operate belongs is selec-
ted, rotate the Channel selector to find the channel. Rotating the channel
selector clockwise or counterclockwise by 1 detent will tune the transceiver
10 Khz upscale or downscale. I.e. If you desire to operate on 27.405 MHz
first set the Band selector switch to `c`, then turn the channel selector to
the position at which the channel readout shows `40`
Operation
(1) Turn the Volume control clockwise to apply power to the transceiver.
The S-RF meter should be illuminated.
(2) Rotate the Squelch control counterclockwise fully.
(3) Set the CB-PA switch to CB position. Now background noise or transmi-
ssion should be heard.
(4) Select the mode of reception AM, SSB, FM, or CW.
(5) Set the RF Gain switch to DX position.
(6) Select the channel desired.
(7) To transmit, depress the transmit switch on microphone; to receive, re-
lease the switch.
RF Gain Switch Adjustment
Normally, this control should be set to DX position to provide maximum re-
ceiver sensitivity for long range reception. However, when communicating
with a nearby station, you may find that the strong signal from this station
may cause overloading of your receiver. In such a case, you can use this
switch to reduce the receiver sensitivity and thus prevent any overloading
and distortion that may occur as a result of the extremely strong incoming
signals. First set the switch to Mid position and if this position will not pro-
vide a sufficient reduction of overloading condition, set to Local position.
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Fine Control 0 peation
This control provides fine tuning of the receiver by 0.8 Khz. On regular
AM or FM reception, this will permit slight adjustment of your tuning in ca-
ses where the received signal is slightly off-frequency. For SSB reception,
this control is used as a voice clarifier by turning it for clearest, most i1ntel-
ligible voice.
Coarse Tune Control Operation
This Control acts like a VFO (variable frequency oscillator) allowing inter-
channel reception and transmission. This shifts the assigned center frque-
ncy of the channel 5 KHz up (when rotated clockwise fully) or down (when
rotated counterclockwise fully). In the center position, the receiving and
transmitting frequency is normal (as listed in the Frequency/Channel Chart).
Stand-By Pee
Special provision has been made to your transceiver to give your partner a
sign by beep-tone to tell you are turning to receive. In each time you rele-
ase the push-to-talk button on the microphone, the beep tone is automat-
ically transmitted.
CW Operation
(1) Set the Mode selector to CW position.
(2) Connect a CW key to the CW key jack on the rear panel.
(3) To transmit with Morse codes, simply operate the key.
Note. To transmit CW, you may not depress the transmit switch (PTT) on
the microphone.
Morse Codes
A ( )
B ( )
C ( )
D ( )
E ( )
F ( )
G ( )
H ( )
I ( )
J ( )
K ( )
L ( )
M ( )
N ( )
O ( )
P ( )
Q ( )
R ( )
S ( )
T ( )
U ( )
V ( )
W ( )
X ( )
Y ( )
Z ( )
1 ( )
2 ( )
3 ( )
4 ( )
5 ( )
6 ( )
7 ( )
8 ( )
9 ( )
0 ( )
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