Specifications

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Compact RDMS

Telemetry Receiver

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2 Quasonix, Inc.

2 Specifications

Characteristic Specification

Receiver Section

Type Dual-conversion superheterodyne

Input RF Frequency

Refer to Table 2

Tuning resolution

Tunes in 62.5 kHz increments, to the 70 MHz IF output, after the 70

MHz IF output, receiver tunes in increments of less than 1 Hz

Frequency stability

1 ppm over temperature

1 ppm per year aging

Reference oscillator 20 MHz

Noise figure 3.5 dB (typical), 5 dB (maximum)

LO phase noise, measured at 70 MHz IF output -115 dBc/Hz @ 1 MHz offset

Maximum RF input +20 dBm (+10 dBm for C-band)

Available gain (to 70 MHz IF output) 114 dB

Gain control 128 dB control range; User selectable: AGC or MGC (AGC freeze)

AGC time constant Adjustable, 0.1 ms to 1000 ms

First IF bandwidth 60 MHz (nominal)

IF rejection > 90 dB

Image rejection 70 dB

RF input impedance 50 ohms

Second IF Section

IF frequency 70 MHz

IF output level 0 dBm nominal (AGC mode)

IF output impedance 50 ohms

IF bandwidths

250 kHz, 500 kHz, 1 MHz, 2 MHz, 4.5 MHz, 10 MHz, 20 MHz, 40 MHz.

Automatic selection based on data rate, with manual override

Optional: 70 kHz, 1.4 MHz, 3 MHz, 6 MHz, 14 MHz, 28 MHz