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TK-760G/(N)/762G/(N
)
TK-760G/(N)/762G/(N
BLOCK DIAGRAM
)
TK-760G /(N)/762G/(N
)
77
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Receiver Section
TK-760G/(N)/762G/(N
)
TK-760G/(N)/762G/(N
)
LEVEL DIAGRAM
Center Frequency 49.95MHz 450kHz Audio Frequency
Transmitter Section
W/N 5.0mVrms
SW 4.0mVrms
Control Unit TX-RX Unit VCO Unit TX-RX Unit Power Module TX-RX Unit
W/N 11.2mVrms
SW 8.96mVrms
W/N 450mVrms
SW 360mVrms
To make measurements in the RF section, connect the RF
level meter.
In the RF section, use a 0.01µF coupling capacitor.
(The display shows the SSG input value required to obtain
12dB SINAD.)
To make measurements in the AF section, connect the AC level meter.
(ANT input : –53dBm, 1kHz FM, 3kHz DEV (Wide) / 2.4kHz DEV (Semi wide) / 1.5kHz DEV (Narrow))
The AF output level is adjusted for 0.45V/4Ω by the front panel AF VOL control.
W 120mVrms
SW 96mVrms
N 58mVrms
To make measurements in the AF section, connect the AC level meter.
AG is set so that MIC input becomes 3kHz/2.4kHz/1.5kHz (Wide/Semi wide/Narrow) DEV at 1kHz MOD.
To make measurements in
the RF section, connect the
RF wattmeter (50Ω).
7978
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TK-760G/(N)/762G/(N
SPECIFICATIONS
GENERAL
Frequency Range ................................ 146 to 174MHz
Number of Channels ........................... TK-762G : Maximum 8 channels TK-760G : Maximum 128 channels
Number of Groups .............................. TK-760G : Maximum 128 groups
Channel Spacing
TK-760G/TK-762G .......................... Wide : 25kHz Semi wide : 20kHz
TK-760G(N)/762G(N) ...................... Narrow : 12.5kHz
PLL Channel Stepping ........................ 5kHz, 6.25kHz
Modulation .......................................... ±5kHz at 25kHz ±4kHz at 20kHz ±2.5kHz at 12.5kHz
Operating Voltage ............................... 13.2V DC ±15%
Current Drain ...................................... Less than 0.4A on standby
Less than 1.0A on receive
Less than 8.0A on transmit
Operating Temperature Range ........... –30°C to +60°C
Dimensions & Weight ........................ 140 W x 40 H x 145 D mm , 940g
Channel Frequency Spread ................ 28MHz
)
RECEIVER (Measurements made per ETS standard)
Sensitivity (12dB SINAD) (EIA) ........... Wide : 0.25µV Semi wide : 0.25µV Narrow : 0.32µV
Adjacent Channel Selectivity .............. Wide : 70dB Semi wide : 70dB Narrow : 60dB
Intermodulation................................... 65dB
Spurious Responce Rejection ............ 70dB
Audio Power Output ........................... 4.0W at 4Ω, with less than 10% distortion
Frequency Stability ............................. ±2.5ppm
TRANSMITTER (Measurements made per ETS standard)
RF Power Output ................................ 5 to 25W
Spurious Response ............................. 70dB
FM Noise (EIA).................................... Wide : 50dB Semi wide : 50dB Narrow : 45dB
Modulation Distortion ......................... Less than 3% at 1kHz
Frequency Stability ............................. ±2.5ppm
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