Rolls HR78
AM/FM Digital Tuner

HR78

The ROLLS HR78 is a PLL synthesized digital AM/FM tuner in a feature-packed half-rack chassis. The unit is ideal for replacing analog tuners, and where a small digital tuner is desired. The unit ships with FM and AM antennas, and the 1/8" output has sufficient levels to drive a pair of headphones. Up to two HR78 units may be rack mounted in a single standard 1U rack space, the Rolls URT5 Universal Rack Tray.

Features:

• Retains presets when power is off
• 18 presets, 12 FM and 6 AM
• Large LCD digital display
• Output Level control
• Auto search up and down
• US or International AM frequency centers
• RCA and 1/8" (3.5 mm) Outputs
• FM stereo or mono operation

FM Specifications:

• Intermediate Frequency: 10.7 MHz +/- 0.3
• Tuning Range: 87.5 - 108 MHz
• 30 dB quieting sensitivity: 28 dB
• IF Rejection 87.9 MHz: 50 - 56 dB
• Image Rejection 105.9 MHz: 20 - 26 dB
• 3dB Limiting Sensitivity: 28 - 35 dB
• THD 1 mV Input: 0.5 - 2 %
• Auto Tuning Sensitivity 97.9 MHz: 25 - 30 dB
• AM Suppression: 26 - 32 dB

AM Specifications:

• Intermediate Frequency: 450 kHz +/- 5
• Tuning Range: 520 - 1710 kHz
• 20 dB quieting sensitivity: 58 dB
• IF Rejection 603 kHz: 25 - 32 dB
• Image Rejection 1404 kHz: 32 - 38 dB
• Auto Tuning Sensitivity 999 kHz: 28 - 35 dB
• Max Output @ 1 kHz: 0.5V +/- 0.05V

General Specifications:

• Supply Voltage: 12 VDC, 200mA (Rolls Model PS27)
• Dimensions (W x D x H): (190 x 185 x 42.5h mm)
• Weight: 3 lbs.

Our Part #  HR78