IF Frequency
Adjacent-Channel Rejection
АМ/БМ and SSB/CW/RF
Gain Control
Automatic Gain Control
(AGC)
Squelch
ANL
Noise Blanker
Voice Lock Range
Audio Output Power
Frequency Response
Built-in Speaker
Extemal Speaker
(Not Supplied)
АМ/Ш: 10.695 MHz Ist IL, 455 KHz 2nd
IF
SSB/CW: 10.695 MHz.
60 dB AM/FM & 70 dB SSB/CW.
45 dB adjustable for optimum signal réception.
Less than 10 dB change in audio output for
inputs from 10 to 100,000 microvolts.
Adjustable; thereshold less than 0.5 uV.
Switchable.
RF type, effective on А М / Ш and SSB/CW.
Coarse (TX/RX) + or - 7KHz.
Fine (RX) + or - 1 KHz.
4 watts into 8 ohms.
300 to 2800 Hz.
8 ohms, round.
8 ohms; disables internai speaker when con
nected.
FREQUENCY
CHANNEL
ù
OW BAND
MID BAND
HI В А Ш
CHANNEL
LCW BAND
MID BAND
HI BAND
1
26.515
26.965
27.415
2
.525
.975
.425
3
.535
.985
.435
4
.555
27.005
.455
5
.565
.015
.465
6
.575
.025
.475
7
.585
.035
.485
8
.605
.055
.505
9
.615
.065
.515
10
.625
.075
.525
11
.635
.085
.535
12
.655
.105
.555
13
.665
.115
.565
14
.675
.125
.575
51
.685
.135
.585
16
.705
.155
.605
17
.715
.165
.615
18
.725
.175
.625
19
.735
.185
.635
20
.755
.205
.655
21
26.765
27.215
27.665
22
.775
.225
.675
23
.805
.255
.705
24
.785
.235
.685
25
.795
.245
.695
26
.815
.265
.715
27
.825
.275
.725
28
.835
.285
.735
29
.845
.295
.745
30
.855
.305
,755
31
.865
.315
,765
32
.875
.325
.775
33
.885
.335
.785
34
.895
.345
.795
35
.905
.355
.805
36
.915
.365
.815
37
.925
.375
.825
38
.935
.385
.835
39
.945
.395
.845
40
.955
.405
.855
6 3
Summary of Contents for 148GTL-DX
Page 32: ...со SO AOJ VR2 BLOCK DI AGRAM ...
Page 33: ...SCHEMATIC DIAGRAM ...
Page 41: ...Parts Layout Top View Î37 2SB525C 1 4 1 5 ...
Page 42: ...PARTS LAYOUT Top View ...
Page 43: ...ADDED PARTS MAIN PCB Bottom View PC 879AB ...
Page 44: ...COPPER PATTERN SWR PCB CH SW PCB LED PCB CD ...
Page 48: ...го w INTERNAL DIAGRAM IC s MB87I9 ...
Page 49: ...INTERNAL DIAGRAM IC s го А ...
Page 50: ...INTERNAL DIAGRAM IC s S 0 4 2 P 25 ...
Page 58: ...со го BLOCK DI AGRAM ...
Page 59: ...PB OIO SCHEMATIC DIAGRAM ...
Page 60: ...WiRING DIAGRAM 3 5 3 6 P C 881 P C 8 8 0 ...
Page 66: ...COPPER PATTERN MAIN PCB ...
Page 68: ...P B O I O ADDED PARTS MAIN PCB H fs il 8 46 ...
Page 70: ...COPPER PATTERN SUB ASSY PCB s ...
Page 71: ...PARTS LAYOUT MIC JACK 49 ...
Page 74: ...INTERNAL DIAGRAM IC s MC14008B 1 4 Cou l 13 S 4 13 S 3 11 S2 10 S 1 16 15 14 13 12 11 10 9 52 ...
Page 75: ...сл С О INTERNAL DIAGRAM IC s OSC out Г 2 out FS PO PI P2 P3 PA P5 P6 P7 P8 MC145106 ...
Page 76: ...INTERNAL DIAGRAM IC s 14 0UT4 13 I N 4 12 lN 4 11 VEE 10 IN 3 9 I N 3 8 0UT3 TA75902P 54 ...