MAGICOMM TECHNOLOGIES LTD
MRA-42/25 (5 - 42 MHz) hybrid return amplifier.
Magicomm Technologies Ltd MRA-42/xx integrated hybrid return amplifier has been designed to provide return path signal amplification in the (5 - 42 MHz) range. Fixed 7A/9A series pads and variable slope control allow the field technician to configure the hybrid return amplifier to fit a variety of field applications for high-speed digital and analog signal transmission. A 25 dB or 30 dB reverse integrated hybrid is available for the Magnavox 6LE-xx series and 30 dB for the 6GNA-xx and 6TNA-xx models.
The MRA-42/xx hybrid return amplifier module plugs directly into the Magnavox 6GNA-xx, 6TNA-xx or 6LE-xx line amplifiers to provide two way capabilities without interfering with the forward path signals. The integrated reverse push-pull hybrid measured higher 1 dB compression point than a discrete two-stage transistor version and superior noise-in-the slot performance.
The hybrid return amplifier module is manufactured with the following controls to cover most field applications:
The primary purpose of equalization in a cable TV plant is to compensate for the slope generated in coaxial cable between the low and high TV frequencies. When various TV carriers with respect to frequency are transmitted through coaxial cable they are subjected to increasing attenuation (loss). Simply put, as the frequencies of the TV carriers are increased, attenuation loss (dB) increases. Equalization is used in an amplifier to compensate for this slope in cable resulting in a flat frequency response at the output. The amount of compensation in a reverse path application is related to the cable loss at 5 MHz with respect to 42 MHz signal.
For cable operators wanting a more precise slope level adjustment a variable slope control is highly recommended.
The MRA-42/xx return amplifier has been designed for easy field upgrades and reliability.
MAGICOMM
TECHNOLOGIES LTD
cabletv-4u.com