HTX-404 440 MHz UHF FM Transceiver
(190-1140)                 Specifications             Faxback Doc. # 8840

General:

Frequency Range: ..................................... 440.000-450.000 MHz

Frequency Step: ................................. 5/10/15/20/25/50/100 kHz

Frequency Stability: .......................................... +/- 10 ppm

Antenna Impedance: .................................... 50 Ohms Unbalanced

Speaker: .......................................................... 8 Ohms

Microphone: ............................... Condenser Microphone 1.2 kOhms

Channel Display: ............................................ LCD 8 Digits

Operating Temperature: ...................... 14 F to 140F (-10 C to 60 C)

Size: ................... 2-9/16 x 4-5/8 x 1-7/8 Inches (65 x 117 x 37 mm)

Weight: ............................................... 1 lbs 3 oz (540 g)

Supply Voltage:

Alkaline Battery Pack: .............................. .............. 9 VDC

Ni-Cad Battery Pack (600 mAh): ................................... 7.2 VDC

External Power Jack: ..................................... 7.2 to 13.8 VDC

Receiver: 

Intermediate Frequencies:

1st IF: ........................................................... 45 MHz

2nd IF: .......................................................... 455 kHz

Sensitivity:

12 dB SINAD: ...................................................... 0.2 uV

20 dB NQ: ........................................................ 0.35 uV

Squelch Sensitivity:

Threshold: ........................................................ 0.1 uV

Tight: ............................................. 10 dB Above Threshold

Spurious Response Attenuation: ..................................... 60 dB

Inter-modulation Attenuation: ...................................... 60 dB

Adjacent Channel Rejection (25 kHz): ............................... 50 dB

Modulation Acceptance Bandwidth: ................................... 9 kHz

Hum and Noise: ..................................................... 35 dB

Audio Output Power (10% THD):

7.2V DC: ........................................................... 0.3 W

9V DC: .............................................................. 0.5W

12V DC: .............................................................. 1 W

13.8V DC: ............................................................ 1 W

Audio Distortion: .................................................... 2 %

Audio Response: ............................................. -6 dB/Octave

Current Drain:

Stand-By Without Power Save: .........................................35 mA

Stand-By With Power Save: ............................................25 mA

CTCSS Sensitivity: .................................................0.15 uV

DTMF Squelch Sensitivity: ...........................................0.2 uV

Transmitter:

RF Power Output:

7.2 VDC: ............................................................1.5 W

9 VDC: ..............................................................2.5 W

>12 VDC: ............................................................. 5 W

Low Power: ......................................................... 0.5 W

Maximum Deviation: ............................................... 4.5 kHz

Hum and Noise: ..................................................... 35 dB

Audio Distortion: ................................................... 0.5%

Audio Response: ............................................. +6 dB/Octave

Spurious and Harmonic Emissions: ................................... 70 dB

Frequency Error: ............................................... +/0.0005%

Microphone Sensitivity: ......................................... 4 mV RMS

CTCSS Tone Deviation: ............................................ 0.7 kHz

DTMF Tone Deviation: ............................................. 3.5 kHz

Current Drain:

7.2 VDC: ........................................................... 1.2 A

9 VDC: ............................................................. 1.4 A

12 VDC: ............................................................ 1.6 A

13.8 VDC: .......................................................... 1.8 A

Low Power: ......................................................... 0.8 A

(smc/eb 3/2/98)

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