Kenwood TK-270G Ricetrasmittente
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Modello:
TK-270G
Data:
1999
Categoria:
Gruppo:
Descrizione:
VHF FM TRANSCEIVER
Informazioni
General
Frequency Range
............................................................
150~174MHz
Number of channels
.........................................................
Max. 8 (TK-260G, Max. 128 (TK-270G,
Number of groups
............................................................
Max. 128 (TK-270G,
Channel Spacing
..............................................................
25kHz, 30kHz (Wide) 12.5kHz, 15kHz (Narrow)
PLL Step
..........................................................................
2.5kHz, 5kHz, 6.25kHz, 7.5kHz
Operating Voltage
............................................................
7.5 VDC
Battery Life
.......................................................................
More than 8 hours at 5 watts (5-5-90 duty cycle with KNB-15A
battery)
Operating Temperature renge
......................................... -30°C to +60°C
(-22 °F to +140 °F)
Dimensions and Weight
With KNB-14 (7.2V 600mAh battery)
............................. 58 (2-5/16) W x 135 (5-5/16) H
x 32 (1-1/4) D mm (in)
400g (0.88lbs)
With KNB-15A (7.2V 1100mAh battery)
......................... 58 (2-5/16) W x 135 (5-5/16) H x
35 (1-3/8) D mm (in)
440g (0.97lbs)
Receiver (Measurements made per EIA standard EIA-RS316B)
Sensitivity
EIA 12dB SINAD
...........................................................
0.25mV (Wide)/0.28mV (Narrow)
Selectivity
.........................................................................
70dB (Wide)/65dB (Narrow)
Intermodulation
................................................................
65dB (Wide)/60dB (Narrow)
Spurious responce
........................................................... 65dB
Audio Power Output
......................................................... 500mW
Frequency Stability
.......................................................... ±3ppm
Channel Frequency Spread
............................................. 24MHz
Transmitter (Measurements made per EIA standard EIA-RS 316B)
RF Power output
..............................................................
5W/1W
Spurious and Harmonics
.................................................. 70dB
Modulation
.......................................................................
16KfF3E (Wide)/11KfF3E (Narrow)
FM Noise
..........................................................................
-45dB (Wide)/-43dB (Narrow)
Audio Distortion
................................................................
Less than 5%
Frequency Stability
.......................................................... ±3ppm
Channel Frequency Spread
............................................. 24MHz
Tipo di manuale:
Manuale di servizio
Pagine:
50
Dimensione:
4.50 Mbytes (4717981 Bytes)
Lingua:
english
Revisione:
ID del manuale:
B51-8493-00(S) 1425
Data:
Qualità:
Documento elettronico, senza ricerca, molto ben leggibile.
Data caricamento:
2015 06 15
MD5:
b48e40ea57f5f4d78c76bbcbe90b3fda
Scaricamenti:
1317
Informazioni
GENERAL
...
2
SYSTEM SET-UP
... 2
OPERATING FEATURES
... 3
REALIGNMENT
... 8
DISASSEMBLY FOR REPAIR ... 16
CIRCUIT DESCRIPTION
... 17
SEMICONDUCTOR DATA ... 21
DESCRIPTION OF COMPONENTS ... 23
PARTS
LIST ...
24
EXPLODED VIEW
... 30
CONTENTS
Key top (DTMF)
(K29-5330-02)
TK-260G TK-270G
PACKING
...
32
ADJUSTMENT
... 33
PC BOARD VIEWS
DISPLAY UNIT (X54-3250-10) ... 41
TX-RX UNIT (X57-587X-XX) ... 43
SCHEMATIC DIAGRAM
... 49
BLOCK DIAGRAM
... 57
LEVEL DIAGRAM
... 59
KNB-14/KNB-15A (Ni-Cd BATTERY) ... 60
OPTIONS
...
61
SPECIFICATIONS ... BACK COVER
This manual is intended for use by experienced technicians
familiar with similar types of commercial grade communications
equipment. It contains all required service information for the
equipment and is current as of the publication date. Changes
which may occur after publication are covered by either Service
Bulletins or Manual Revisions. These are issued as required
