870MHz 2-Way Amplifier (Big Housing and Four Amplification Modules)

ITEMS

FORWARD PATH

RETURN PATH

Frequency Range

82 ~ 870 MHz, or higher

5 ~ 65 MHz

Operating Gain (Includes DPXs, EQs, AGC …)

≥ 34 dB, full range

≥ 17 dB, full range

Response Flatness

≤ ± 0.75 dB

Gain Control Range

0 ~ 20dB Adj. / plug-in PAD

0 ~ 20dB 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

≥ 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 V_AC / 50 ~ 60 Hz, or larger

Internal Circuit Voltage

24 ± 0.3 V_DC (high efficient switchmode power supply), withstand ≥1.8A Load. Overload, overvoltage, short circuit protection.

Housing Design

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

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

- RF shielding ≥ 110 dB.

- IP67 degree of dust and water protection.

- For strand and pedestal mounting.