Gdm-004 analog modulator
GLM-SAW860
The GLM-SAW860 is an all solid-state audio/video modulator that provides a modulated video and aural RF carrier output on a fixed channel from 54MHz to 860MHz. The modulator accepts standard polarity video at a 0.7-2.5 Vp-p level from video sources such as a satellite receiver, demodulator, TV camera, DVD player or video tape recorder. The unit provides high quality video, color, and audio signals on any unused channel within a closed circuit MATV, SMATV, or CATV system. For easy operation, all level controls are located on the front panel.
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| Place of Origin:Guangdong,China | |
| Model Number:GDM-004-2(GLM-SAW860) | |
| RF | |
| 1.Output Channels | TV VHF: 2-13, UHF: 14-69, CATV: 2-127 |
| 2.Output Level | +55 dBmV (minimum) |
| .Output Level Range | 13 dB |
| 4.A/V Carrier Ratio | -7dB to -22dB |
| 5.Spurious Output | -60 dB below video carrier (@A/V carrier ration -15 dB, output level: +55dBmV) |
| 6.Frequency Accuracy/Stability | ±5 KHz |
| 7.Output Impedance | 75 Ohms |
| 8.Output Return Loss | 9 dB |
| VIDEO | |
| 1.Video Input Level | 0.7 Vp-p minimum @87.5% Modulation |
| 2.Differential Gain | <5% (10 to 90% APL) |
| 3.Differential Phase | <5˚ (10 to 90% APL) |
| 4.Hum and Noise | -60 dB @87.5% Modulation |
| 5.Visual Carrier to Noise Ratio | 60 dB @4 MHz BW |
| 6.Frequency Response | ±1.7 dB (30 Hz to 4.2 MHz) |
| AUDIO | |
| 1.Input Level | 0.8 Vp-p for ±25 KHz Deviation |
| 2.Input Impedance | 600 Ohms Unbalanced |
| 3.Pre-Emphasis | 75 µSec |
| GENERAL | |
| 1.Power Input Range | 120 VAC, 60 Hz |
| 2.Operating Temperature | 32 ˚F ~ 122 ˚F |
| 3.Connectors | All "F" Type |
| MECHANICAL | |
| 1.Dimensions | 19" (W) x 1.75" (H) x 2.25" (D) |
| 2.Weight | 4.3 lbs |
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