Specifications - Radio Shack HTX-400 Service Manual

SPECIFICATIONS

1. GENERAL
FREQUENCY :
RX -------------------------------------------------------- 420-470 MHz
TX --------------------------------------------------------- 430-470 MHz
FREQUENCY GENERATION ------------------------ PLL SYNTHESIZER
FREQUENCY STABILITY ---------------------------- ¡ ¾ 5 PPM
OPERATING TEMPERATURE ---------------------- 14¢ ª TO 131¢ ª F (-10¡ É TO 55¡ É )
POWER SOURCE -------------------------------------- DC 3.0V TO 9V
MODULATION -------------------------------------------- F3E
IMPEDANCE ---------------------------------------------- 50 ohm
DIMENSIONS (HWD) ----------------------------------- 2
WEIGHT (without batteries) --------------------------- 4.2 oz (120g)
2. RECEIVER SECTION
CIRCUIT TYPE ------------------------------------------- DUAL CONVERSION, SUPERHETERODYNE
IF FREQUENCY :
1st IF ----------------------------------------------------- 30.85 MHz
2nd IF ---------------------------------------------------- 450 KHz
SENSITIVITY ---------------------------------------------- 0.22¥ ì V for 12dB SINAD
SELECTIVITY --------------------------------------------- 50 dB Min.
SPURIOUS & IMAGE REJECTION ----------------- 40 dB Min.
INTERMODULATION ----------------------------------- 50 dB Min.
DISTORTION --------------------------------------------- 10 % Max.
S/N RATIO ------------------------------------------------- 40 dB Min.
AUDIO OUTPUT @10%THD ------------------------- 80 mW 16 Ohm, BTL
3. TRANSMITTER SECTION
POWER OUTPUT --------------------------------------- 300 mW
DISTORTION ---------------------------------------------- 10 %
DEVIATION ----------------------------------------------- ¡ ¾ 5.2 KHz
S/N RATIO ------------------------------------------------- 35 dB
CURRENT DRAIN ---------------------------------------- 600 mA
¡ ¿ 3 ¡ ¿ 1
1 3 1
/ / / inches
4 8 16
85¡ ¿ 5 8¡ ¿ 2 6.5 mm
1