Ten-Tec RX-340 - 6-5.2 Functional Tests for Model

6-5.2 FUNCTIONAL TESTS FOR MODEL RX-340:
SPECIFICATION TEST SETUP TYP. MIN/MAX
Sensitivity
Preamp OFF
Attenuator OFF
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.
(Noise Fig. 18dB typ.
20dB max.)
USB MODE:
IF BW 3.2kHz
MAGC = 0.
Apply -109 dBm, 15.011 MHz.
Adjust level for 10 dB SINAD.
-112 dBm -110 dBm MAX
CW MODE:
IF BW 300Hz.
BFO -1000.
Apply -113 dBm, 15.01 MHz.
Adjust level for 16 dB SINAD.
-116 dBm -110 dBm MAX
AM MODE:
IF BW 6kHz
Apply -100 dBm, 15.01 MHz,
50% modulation @400 Hz.
Adjust level for 10 dB SINAD.
-103 dBm -101 dBm MAX
FM MODE:
IF BW 16kHz
Apply -99 dBm, 15.01 MHz,
6 kHz Peak Deviation @ 1 kHz
Adjust level for 16 dB SINAD.
-102 dBm -100 dBm MAX
Preamp on
(Noise Fig. 10 dB typ.
14dB max.)
USB MODE: Preamp ON
IF BW 3.2 kHz
MAGC = 0
Apply -119 dBm, 15.011 MHz
Adjust level for 10 dB SINAD.
-119 dBm
(.25 µV)
-115 dBm MAX
IMAGE REJ.
(90 dB typ. 80dB mm.)
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.
>10 dBm -32 dBm MIN
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.
-25 dBm -32 dBm MIN
6-2