The HR78 AM/FM Digital Tuner
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.
PRODUCT SPECIFICATIONS:
| FM | |
| 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 | |
| Intermediate Frequency: | 450 kHz +/- 5 |
| Tuning Range: | |
| US: | 520 - 1710 |
| International: | 531 - 1602 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 |
| Supply Voltage: | 12 VDC, 200mA (Rolls Model PS27) |
| Dimensions: | (190w x 185d x 42.5h) mm |
| Weight: | 3 lbs |
VIEW THE DATA SHEET
VIEW THE MANUAL
VIEW THE SCHEMATIC
These are in .pdf format for Adobe Acrobat Reader
These are in .pdf format for Adobe Acrobat Reader