HF200-3615 Direct Modulated Transmitter delivers high performance signal transmission of NTSC, PAL, ATC, QAM, and related digital information for CATV and/or telephony applications. It is based upon custom high-linearity optically isolated DFB (Distributed Feedback) lasers, specifically designed for multi-channel AM video applications. The built-in control circuits provide an exceptionally low noise and inter-modulation characteristics. Automatic output power control, coupled with temperature stabilization provided by a thermoelectric cooler ensures maximum performance and longer laser life.
The units are packaged in slim 1.75-inch high (1RU), 19-inch aluminum rack-mounted enclosures. Each unit is fitted with redundant self-contained power supplies with 90-265VAC inputs.
All internal laser parameters and monitoring functions are under microprocessor control: the front panel displays status information related to laser operation, temperatures, and RF input.
Transmits NTSC, PAL, ATC, and related digital information for CATV and/or telephony applications.
Available in a variety of output levels.
High linearity, optically isolated, distributed AM feedback DFB laser.
54-1000MHz RF input bandwidth.
Front panel laser diode and rear panel RF input test points (-20dB).
Operation wavelength: 1550nm.
Low RF drive levels enabled due to built-in RF amplifier and Automatic Gain Control.
Microprocessor-controlled diagnostics, front panel LCD display and controls.
Integrated SNMP network interface, functional on units with optional S/W loading.
Power supplies optional in VDC.
Operating temp. (ºC)
0 – 50
32 – 122 ºF
Storage temp. (ºC)
-40 – 85
Operating relative humidity (%)
5 – 95
Power supply (Volt AC)
100 – 240
Power consumption (W)
Size (WxDxH in inches)
1530 – 1563
Output power (dBm)
6 and 10
Depending on model
RF bandwidth (MHz)
45 – 1000
Input level (dBmV)
15 – 25
-0.75 – +0.75
Return loss (dB)
RF connector (main input)
78 channel load, back to back at 0dBm receive power
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