Tandberg TPT 3031 A Brochure

Page 1

Technical Paper

Programable Tuner TPT 3031A

TUNER

The new digital tuner
TPT 3031 A is the result
of long term development
in the Tandberg labs.

This new digital tuner
offers a high degree of
stability in combination

with an easy-torread, and
accurate LED display.

The front end

Programming

unit

Easy operation

The audio
circuit

Full remote
operation

The front end employs
ganged, tuned circuits
where DC voltage controlled
capacitance diodes are

used as tuning elements,
and Dual-Gate MOSFETs

are used in the RF stages.
This achieves stable,
accurate tuning and good
sensitivity combined with
superior headroom.

The TPT 3031 A utilizes

4 tuned circuits to prevent
Mirror Image (214 MHz)
and other out of band
distortion.

In addition to the main
tuning, there is a second
stage which stores 16
pre-tuned FM stations

in an electronic memory.
This prertuning system
is based on miCrOprOcessor

technology to achieve
maximum S/N ratio and
frequency stability.

The TPT 3031 A offers both

manual and automatic tuning,

Advanced microprocessor
technology limits the
number of buttons to

a minimum, and all
functions are easy to
control with a logical
layout.

The display incorporates
LED's indicating signalr
strength, center-tuning
and stereorreception.

To make a good tuner
takes a special knowledge
of radio frequency
technology, but in many
cases the audio section

is neglected in terms of
component quality and
design criteria.

The TPT 3031 A Tuner
shares the designrphilosophy
of the other well

recognized highend
products in the Tandberg

3000»series. Design high-
lights are carefully selected
components.

The TPT 3031 A TunEr is
built for full remote
operation, like several
other new Tandberg
products. The optional
RC73000 Remote Control

operates all these different
units from one single trans-
mitter. The remote control
offers direct access to

all presets.

To secure the set against
unattended reprogramming,
all presets must be set/
programmed on the tuner
itself.

Page 2

Technical Data

Tandberg Programable
Tuner TPT 3031A

Technical Data according to
IHF-T-200, 1975
IEEE Std. 185, 1975

Power requirements:

Power consumption:

110 7115 V/220 r230 V/24D V t 10 %, 50/60 HZ
20W

Dimensions: Width 171/B(43.5 cm)
Depth: 133/4 (35.0 cm)
Height: 31/4"l 8.3 cm)
Weight' 10.7 lbs (4.85 kg)
Tuning range: 87.5 7108 MHz
Usable sensitivity: Mono 1.1 uV/75 ohm
50 dB quieting sensitivity: Mono 2 uV/75 ohm
Stereo 20.0 UV/75 ohm
Signalrtornoise ratio: Mono 82 dB
Stereo 78 dB
Muting threshold: 15 oV/750hm
Muting hysteresis: 15 dB
Stereo threshold: 1 LIV/75 ohm
Frequency response: Mono +05 dB 71 dB
Stereo +0.5 (18 - 1 dB
Distortion at 50 dB quieting: Mono 0 2 %
Stereo 0.3 %
Distortion at 65 dBV
10.5 mV/75 ohm at1 kHz): Mono 015 "/a
Stereo 0.15 9n
Distortion at 65 dB! Stereo 0 4 %
lntermodulation distortion: Mom 0.2 36
Stereo 02 %
Capture ratio, selectively measured: 1.0 (IE
Adjacent channEI selectivity t 200 kHz: 14 dB
Alternate channel selectivity : 400 kHz: - 100 dB
Spurious response ratio: - 90 dB
Image response ratio, balanced: x 100 dB
RF intermodulation: :> 70 (18
AM suppression ratio: 2 70 dB
Stereo separation (60 Hz to 10 kHz,
selectively measured): > 45 (IE
Suhcarrier product ratio: 70 dB
19 kHz suppression: 70 dB
38 kHz suppression: 100 dB
Center LED on: 20 dBl
Signal LED on: 30 C181

Specrlcations are subject to change without notice

YDUR AUTHORIZED TANDBERG REPRESENTATIVE:

Part No. 602812

HEADQUARTER:

Tandberg Audio
Products A.s
Qstensjovn. 44
N-(1667 Oslo 6
Norway

Telephone
(472) 65 09 05

.98380NVJ.