870MHz 2-Way Amplifier (Big Housing and Three Amplification Modules)
870MHz 2-Way Amplifier (Big Housing and Three Amplification Modules)
  • Model
    MODEL: SFD-8738S2K6C3
  • Brand
    Seehai
  • Price
    Call
  • Description

    Forward path 1  870 MHz GaAs or GaN Push-Pull Hybrid Amp and 1 * 870 MHz GaAs or GaN Power-Doubler Hybrid Amp. Modules. Return path 1 Reverse Hybrid Amp. Module. Module has brand name from G7/EU countries All modules have brand name from G7/EU countries

    High quality aluminum-alloy die-cast housing with passivation surface, beautiful and firm, corrosion prevention.

    Waterproof design, lightning proof structure and rainproof connection, fit for outdoor use.

    20dB independent input and output test ports are set inside (outside optional) the product for the forward and return path.

    Modularized plug-in diplex filter, equalizer and attenuator, easy to choose or upgrade according to user’s requirement.

    Independent installation design for the power supply, 60 VAC (220VAC optional).

    Apply to trunk and branch line in two way CATV system, to compensate the attenuation of branch lines.

Quantity :
Describe Product

Block Diagram:

870MHz 2 Way Amplifier Big Housing and Three Amplification Modules
Specifications

Specification:

ITEMS

FORWARD PATH

RETURN PATH

Frequency Range

82 ~ 870 MHz, or higher

5 ~ 65 MHz

Operating Gain (Includes DPXs, EQs, AGC, …, and Direct Output Module)

≥ 38 dB, full range

≥ 20 dB, full range

Response Flatness

≤ ± 0.75 dB

Gain Control Range

0 ~ 20 dB Adj. / plug-in PAD

0 ~ 20 dB Adj. / plug-in PAD

Slope Control Range (Fixed value, Plug-in modules)

3 ~ 12dB

3 ~ 9dB

Noise Figure

≤ 9 dB

≤ 9 dB

Return Loss (75-ohm Reference)

≥ 12 dB, full range

Recommended Output Levels (Direct Output)

≥ 38 / 50 dBmV (82 / 870 MHz)

≥ 42 / 42 dBmV (5 / 65 MHz)

Rated Signal Level Distortion (*)

 

Cross Modulation (XMOD)

≤ - 60 dB

≤ - 60 dB

Composite Second Order (CSO)

≤ - 63 dB

≤ - 63 dB

Composite Triple Beat (CTB)

≤ - 63 dB

≤ - 63 dB

Input / Output Impedances

75 ohms, 5/8-24 Female

Hum Modulation

≥ 65 dB @ 10A passing current

Power Requirements

40 ~ 90 VAC / 50 ~ 60 Hz

Internal Circuit Voltage

24 ± 0.3 VDC (high efficient switchmode power supply), withstand ≥1.5A Load. Overload, overvoltage, short circuit protection.

Housing Design

 

 

 

 

Die-cast aluminium housing design with paint/coating for:

- Good heat spread (Operating Temp.: 0 ~ +60oC, or wider).

- RF shielding ≥ 110 dB.

- IP67 degree of dust and water protection.

- For strand and pedestal mounting.

NOTE:

-Measured with 132 NTSC (or 96 PAL) channels of Forward Path, at least 4 T-channels of Return Path, at Recommended Output Levels.                                                                                   

         - Support Adj. Attenuator / plug-in Attenuator (PAD), plug-in DPX, and plug-in EQ between hybrid modules.

         - Support Forward IN and OUT Test Ports (-20 dB), Return IN and OUT Test ports (-20 dB).

         -  Support one or two outputs by plug-in jumper or splitter.

         - Return Attenuator and EQ are designed / located at OUTPUT of Return Amp. Module.

         - Lightning Arrestors at all IN/OUT Ports.

 

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