6-5.2 Functional Tests For Model - Ten-Tec RX-340 Technical Manual

6-5.2 FUNCTIONAL TESTS FOR MODEL RX-340:
SPECIFICATION
Sensitivity
Preamp OFF
Attenuator OFF
(Noise Fig. 18dB typ.
20dB max.)
Preamp on
(Noise Fig. 10 dB typ.
14dB max.)
IMAGE REJ.
(90 dB typ. 80dB mm.)
TEST SETUP
Connect a signal generator to the receiver RF
input.
Connect an audio analyzer with SINAD
measurement capability to the mono audio
output.
Set receiver-tuned frequency to 15.01 MHz,
preamp OFF.
USB MODE:
IF BW 3.2kHz
MAGC = 0.
Apply -109 dBm, 15.011 MHz.
Adjust level for 10 dB SINAD.
CW MODE:
IF BW 300Hz.
BFO -1000.
Apply -113 dBm, 15.01 MHz.
Adjust level for 16 dB SINAD.
AM MODE:
IF BW 6kHz
Apply -100 dBm, 15.01 MHz,
50% modulation @400 Hz.
Adjust level for 10 dB SINAD.
FM MODE:
IF BW 16kHz
Apply -99 dBm, 15.01 MHz,
6 kHz Peak Deviation @ 1 kHz
Adjust level for 16 dB SINAD.
USB MODE: Preamp ON
IF BW 3.2 kHz
MAGC = 0
Apply -119 dBm, 15.011 MHz
Adjust level for 10 dB SINAD.
FIRST MIXER:
Receive frequency 15.01 MHz., preamp OFF
USB Mode
IF BW 3.2 kHz
BFO -1800 Hz
MAGC = 0
Apply 105.924 MHz, -50 dBm
Increase level for 10 dB SINAD.
SECOND MIXER:
Receive frequency 15.01 MHz.
USB Mode
IF BW 3.2kHz
BFO -1800 Hz
MAGC = 0
Apply 15.923 MHz, -50 dBm
Increase level for 10 dB SINAD.
6-2
TYP. MIN/MAX
-112 dBm -110 dBm MAX
-116 dBm -110 dBm MAX
-103 dBm -101 dBm MAX
-102 dBm -100 dBm MAX
-119 dBm -115 dBm MAX
(.25 µV)
>10 dBm -32 dBm MIN
-25 dBm -32 dBm MIN