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Frequency Response
Output Impédance
Output Indicators •
AM and FM: 450 to 2500 Hz.
50 ohms, unbalanced.
Meter shows relative RF output power and
SWR. Transmit LED glows red when trans
m ite r is in operation.
RECEIVER
Sensitivity
Selectivity
Image Rejection
IF Frequency
Adjacent-Channel Rejection
AM/FM and SSB/CW/RF
Gain Control
Automatic Gain Control
(AGC)
Squelch
ANL
Xoise Blanker
Voice Lock Range
Audio Output.Power
Frequency Response
Built-in Speaker
Extemal Speaker
(Not Supplied)
SSB/CW: 0.25 jaV for 10 dB (S+N)/N at
greater than й -watt of audio output.
AM: 0.5
ßV
for 10 dB (S+N)/N at greater
than Й-watt of audio output.
FM: 1.0 jaV for 20 dB (S+N)/N at greater
than й -watt of audio output.
AM/FM: 6 dB @3 KHz, 50 dB @9 KHz.
SSB/CW: 6 dB @2.1 KHz, 60 dB @3.3 KHz.
More than 65 dB.
AM/FM: 10.695 MHz Ist IF, 455 KHz 2nd
IF
SSB/CW: 10.695 MHz.
60 dB AM/FM & 70 dB SSB/CW.
45 dB adjustable for optimum signal récep
tion.
Less than 10 dB change in audio output for
inputs from 10 to 100,000 microvolts.
Adjustable; threshold less than 0.5
ßV.
Switchable.
RF type, effective on AM/FM and SSB/CW.
Coarse (TX/RX) ±7 KHz.
Fine (RX) ±1 KHz.
4 watts into 8. ohms.
300 to 2800 Hz.
8 ohms, round.
8 ohms; disables internal speaker when con
nected.
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Содержание 148GTL-DX
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Страница 33: ...SCHEMATIC DIAGRAM ...
Страница 34: ...WIRING DIAGRAM OFF LOW OFF CAL P C 8 8 I P C 8 8 0 Y Y 027 Wl YEL 1 5 4 0 3 ____ J 503 ANT J 502 6 7 ...
Страница 41: ...Parts Layout Top View Î37 2SB525C 1 4 1 5 ...
Страница 42: ...PARTS LAYOUT Top View ...
Страница 43: ...ADDED PARTS MAIN PCB Bottom View PC 879AB ...
Страница 44: ...COPPER PATTERN SWR PCB CH SW PCB LED PCB CD ...
Страница 48: ...го w INTERNAL DIAGRAM IC s MB87I9 ...
Страница 49: ...INTERNAL DIAGRAM IC s го А ...
Страница 50: ...INTERNAL DIAGRAM IC s S 0 4 2 P 25 ...
Страница 58: ...со го BLOCK DI AGRAM ...
Страница 59: ...PB OIO SCHEMATIC DIAGRAM ...
Страница 60: ...WiRING DIAGRAM 3 5 3 6 P C 881 P C 8 8 0 ...
Страница 66: ...COPPER PATTERN MAIN PCB ...
Страница 68: ...P B O I O ADDED PARTS MAIN PCB H fs il 8 46 ...
Страница 70: ...COPPER PATTERN SUB ASSY PCB s ...
Страница 71: ...PARTS LAYOUT MIC JACK 49 ...
Страница 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 ...
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Страница 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 ...
Страница 77: ...INTERNAL DIAGRAM IC s S 042P 55 ...