PAMS Technical Documentation
TFF-3 WLL Terminal
Transceiver TFF-3T
(Thailand version)
Issue 1 08/99 Nokia Mobile Phones Ltd.
TFF-3
Transceiver TFF-3T (Thailand version)
AMENDMENT RECORD SHEET
PAMS Technical Documentation
Amendment
Number
Date Inserted By Comments
08/99
Issue 1
Page 2
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Issue 1 08/99
PAMS Technical Documentation
Transceiver TFF-3T (Thailand version)
CONTENTS
Introduction 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modules 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Characteristics 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exploded View of TFF-3T 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly Parts of TFF–3 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts list of WN1T VARIATION MODULE 9. . . . . . . . . . . . . . . .
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Introduction
Functional Description
The transceiver electronics consist of RF/System PCB. System and rf submodules are interconnected with PCB wiring. Unit can be connected to service accessories with system connector and to land–line phone with land–
line connector . The antenna is connected to the unit with antenna connector
RF block is designed for a hand portable phone, which operates in NMT450
systems. Purpose of the RF module is to receive and demodulate radio frequency signal from the base station and to transmit a modulated RF signal
to the base station.
Modules
PAMS Technical Documentation
Name of module Type des. Material code Material code
Basic transceiver TFF-3T 0041503
–System/RF module JM1T 0201424
– Basic module WN1 0201416
– Variation module WN1F 0201422
– Software module ( Basic SW ) 0240831
– Mechanics assembly parts MTFF3 0261932
– Swap package 0062698
RF Characteristics
General RF Specification for the TFF–3T is included in the next table.
Characteristic Value / Comments
RX Frequency range 489.000...493.480 MHz
TX Frequency range 479.000...483.480 MHz
Channel spacing 20 kHz
Number of channels 225 (1...225)
TX Frequency deviation ≤± 3.75 kHz (± 4.05 kHz with 4 kHz supervisory signal)
FFSK deviation
• 1200 Hz (”1” frequency) ± 2240 Hz
• 1800 Hz (”0” frequency) ± 3360 Hz
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ratio
Transceiver TFF-3T (Thailand version)
Transmitter branch Specification for the TFF–3T is included in the next
table.
Parameter Unit/value
Frequency band 479.000–483.480MHz
Output RF power 0.15 W 1.5 W 7.0 W
TFF-3
Spurious signals (TX ON)
Spurious signals (STANDBY)
Modulation method FM
Deviation 4.7 kHz max
Deviation with supervisory signal 5.0 kHz max
FFSK deviation 1200 Hz (”1”)
1800 Hz (”0”)
Harmonic distortion < 5 %
Audio Frequency responce 300–500 Hz
500–2000 Hz
2–3 KHz
pre–emphasis
Adjacent Channel Power < –70 dBc
Audio Intermodulation products < –20 dB
Residual Modulation linear
psophometric
< 0.25 uW, f = 100kHz – 1GHz
< 1 uW, f = 1GHz – 4GHz
< 2 nW, f = 100kHz – 1GHz
< 20 nW, f = 1GHz – 4GHz
2240 Hz dev. +/– 400 Hz
4360 Hz dev. +/– 600 Hz
+1–3 dB
+/– 1 dB
+1–3 dB
6 dB/Oct
< –20 dB (peak)
< –40 dB (rms)
Audio Muting > 40 dB
Compander SW enabled compression
dynamic range
Number of power levels 3
Frequency error +/– 2.5 kHz
2:1
3 – –50 dB +/– 1 dB
Synthesizer specifications for the TFF–3T are included in the next two
tables.
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Transceiver TFF-3T (Thailand version)
TX synthesizer:
Parameter Unit/value
PAMS Technical Documentation
Transmitted frequency difference from BS in
conversation mode
Frequency range 479.000–483.480MHz
Output level 14 +/– 1 dB (incl. 1st buffer)
Phase Noise < –1 18 dBc/Hz (@25KHz)
Settling Time CHN–>CHN+? < 35 ms
+/– 2.5 k Hz
RX synthesizer specification:
Parameter Unit/value
Frequency Tolerance at Startup +/– 2.5 ppm
Frequency range 489.000–493.480MHz
Output level 1 +/– 3 dB
Phase Noise < –1 18 dBc/Hz (@25KHz)
Settling Time CHN–>CHN+? < 25 ms
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Exploded View of TFF-3T
TFF-3
Transceiver TFF-3T (Thailand version)
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Nokia Mobile Phones Ltd.
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Transceiver TFF-3T (Thailand version)
PAMS Technical Documentation
Assembly Parts of TFF–3
ITEM Q’TY CODE DESCRIPTION VALUE, TYPE
1 0201424 System/RF module JM1T
2 9457131 B–cover 3D24024
3 9460301 Immobilizer frame dmd04754
4 9790256 A–cover 1D24369
5 Nut
6 Seal
7 4 pcs Pad
8 14 pcs 6291768 Screw M3x6 pz FeZn Clear
9 0660064 Antenna AMF–4S
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PAMS Technical Documentation
Transceiver TFF-3T (Thailand version)
Parts list of WN1T Variation Module
0201422 WN1T VARIATION MODULE v. 1.1
ITEM CODE DESCRIPTION VALUE TYPE
R432 1430780 Chip resistor 12 k 5 % 0.063 W 0402
R486 1430690 Chip jumper 0402
C601 2320520 Ceramic cap. 2.2 p 0.25 % 50 V 0402
C616 2320548 Ceramic cap. 33 p 5 % 50 V 0402
L612 3645017 Chip coil 5 n 10 % Q=10/100 MHz
G420 4350199 Vco 475–485mhz 2.8v 15ma tx NMT450
G520 4350195 Vco 441–450mhz 2.8v 12ma rx NMT450
Z640 4508238 Dupl 479–483.5/489–493.5mhz 88x51
Z930 4511005 Saw filter 491.25+–2.25 M 5.2x5.2
N620 4352534 RF power hybrid
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PAMS Technical Documentation
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