Arcam Alpha 5 User Manual

ARCAM

ALPHA 5 FM TUNER

HANDBOOK

SERIAL No. LABEL

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TECHNICAL SPECIFICATION

ALPHA 5 FM TUNER

FM Tuning range
Tuning system
Frequency step
Presets
Sensiri\-ity (IHF^
Alternate channel selectivity
AM suppression ratio
Capture ratio
Signal Strength meter

sensiri\nty

Frequency response

Ultimate S/N ratio (CCIR) Mono

Total harmonic distortion 96MHz reference, 22.5kHz deviation at IkHz

Channel separation (IkHz)
Pilot tone suppression
Output impedance
Minimum recommended load
Output level
Power consumption
Size W/D/H mm.
Weight

Supplied accessories

Stereo

Mono
Stereo

87.5 to 108.0MHz
Phase-locked-loop
50kHz
16
typically 1.4p,V
better than 60dB
better than 50dB
typically l.SdB
5 segment LED
typically 2jtV to 2mV
20Hz - 12kHz +/- 0.5dB
typically -2dB at 15kHz

better than 75dB
better than 72dB

better than 0.10%

better than 0.30% (using MPX filter)

better than 40dB

better than 50dB
2kohm
20kohm
850mV at 75kHz detiation
6VA
430 X 230 X 84

2.2kg nett.

3.2kg packed.

FM dipole aerial
phono-phono cable
co-ax plug adaptor
mains lead

INSTALLATION

MAINS SUPPLY CONNECTIC

® Check that your mains supply voltage

agrees with the voltage setting on the
rear panel of the unit.

■ If your mains supply voltage is
different, consult your Arcam dealer.

MAINS SAFETY

■ This product is normally supplied
with a moulded mains plug already
fitted to the lead. If for any reason the
plug needs to be removed, it must be
disposed of immediately and
securely, as it is a potential shock
hazard when inserted into a mains
socket.

■ If the plug is removed then the
remaining lead must be rewired as
follows:

■ The blue •svire must be connected to
the terminal which is coloured blue
or marked with the letter N.

■ The brown wire must be connected
to the terminal which is coloured
brown or marked with the letter L.

■ The green and yellow wire must be
connected to the terminal which is
coloured green and yellow, or
marked with the letter E or the safety
earth symbol.

■ When replacing the fuse in the

supplied moulded mains plug, the
integral fuse holder/cover must always
be refitted.

■ Warning, this apparatus must be
earthed.

(D Insert the lEC line socket of

lead fully into the power in
rear panel. Connect the otl
your mains supply.

AUDIO CONNECTIONS

(D,®AUDIO OUTPUTS - Bo

are identical. Connect one

your amplifier's TUNER ii

a suitable interconnect ca
other can be connected

VCR's audio input for

simultaneous broadcasts (sin
to a cassette deck for direct:
Insert the red phono plug
sockets labelled 'R' and
phono plugs into the socke
'L'.

AERIAL CONNECTIONS

© AERIAL SOCKET - Cor

aerial downlead using the
adaptor if necessary.

OPERATION

MONO - Selects mono
output. The led (light emití
will glow red when mono i
If a weak station is receive«
the background hiss can b

(and in most cases eUmi

selecting mono.

AUTO - Selects automatic

tuning. The led will gl«

when AUTO is selected. 1

not Ut manual tuning is sel<

V A - Press to tune up or down

through the FM frequency band. In
AUTO tuning mode the frequency
display will stop automatically at a
station with a suitably strong signal. In
manual tuning mode press and hold v
or A until the desired frequency is
displayed.

STOPT! - For storing up to 16 FM

stations into the preset memory. To
preset stations press STORE and
while the led glows red, press the
desired preset button.

SHIFT - When storing preset stations
9-16, press STOPT!, press and hold
SHIFT, then press the desired preset
button.

PRESET BUTTONS - Once all the
stations have been preset into the
memory, simply press the relevant
button to select the desired stations.
Use SHIFT when selecting preset
stations 9-16.

POWER - Switches the unit on and
off.

SIGNAL STRENGTH METER ­Indicates signal strength of the selected
station. As several radio stations are
available on more than one frequency,
use the signal strength meter to help
you locate the best position for each
station.

As a guide, two red leds will give
good mono reception. Two red leds
and two green leds will give adequate
stereo reception. All five leds wiU
give the best stereo reception with the
least possible background noise. In
most cases, you will need to use a roof
mounted aerial connected to the tuner
with a good quality low loss 75ohm
co-axial cable to achieve the best
results. The simple wire dipole aerial
provided is only suitable for reception
of strong local stations.

STEPTiO LED - Indicates stereo
reception. When tuning through the
FM frequency band in stereo (auto or
manual) inter-station noise and very
weak signals are automatically muted.
To cancel muting, select mono output
(see © MONO).

FM FREQUENCY DISPLAY ­Indicates the frequency of the selected
FM station.

PRESET MEMORY BACK-UP ­The preset memory will be retained
while the tuner is connected to the
mains. If the mains supply is
disconnected, the memory will be
retained for approximately one week.

RADIO INTERFERENCE

FOR YOUR INFORMATION

■ The Alpha 5 tuner is a digital audio

device which has been designed to
very high standards of electromagnetic
compatibility.

■ EC COUNTRIES; This product has

been designed to comply with
directive 89/336/EEC.

SAFETY STANDARD

This product has been designed to
meet the lEC 65 international
electrical safety standard.

The BBC pubhshes a booklet entitled "Radio
Transmitting Stations" which contains details
of all BBC transmitters in the UK together
with other useful hints and tips.
This booklet can be obtained on request by
sending a large stamped addressed envelope

BBC Engineering Information,
White City,
201 Wood Lane,
London,
W12 7TS.

Telephone: [phone]

(local call rate)

The Radio Authority pubhshes a booklet
which contains details of all independent
radio stations. This booklet can be obtained

on request by sending a large stamped
addressed envelope to:-

Radio Authority,
Holbrook House,

14 Great Queen Street,
London,
WC2B 5DG.

Telephone: [phone]