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Low Noise AmplifiersPRO-LNAHP-4-3-2

Low Noise Amplifier / Preamplifier for the 4 m, 3 m and 2 m bands 68 - 240 MHz

Description

Miniature high-dynamic range low-noise preamplifier for the 4 m LMR band, the FM radio band, the VHF air band, the 2 m LMR band and the DAB radio band.
Covers 68 - 240 MHz.
For use where additional preamplification may be required:
- In receiver systems to ensure low system noise figure
- As buffer amplifier in RF signal distribution systems
- As buffer amplifier to compensate high cable loss
- As preamplifier for measuring instruments
Adjustable gain.
Very low noise figure ensures best possible S/N ratio of weak RF signals.
Excellent large signal behaviour ensures handling of strong RF signals with very low level of IM and harmonic distortion.
Low power consumption.
Models for 12 VDC or 24 VDC supply voltage available (please see ordering designations).
DC supply on solder terminal.
RF connectors: N-female on input and output ports (other types on request).
Low weight.
Wide temperature range.
Sturdy aluminium box.
PRO-LNAHP-4-3-2 is coated with black vinyl to prevent corrosion.

Specifications

Electrical

Model

PRO-LNAHP-4-3-2

Frequency

68 - 240 MHz

Amp. Gain

18 dB (Gain adjustment 3 dB to 18 dB)

Max. Output Power @ 1 dB Compression (P1dB)

> +17 dBm @ max. gain

Noise Figure

Max. 1.5 dB, typ. < 1.2 dB

Output 2. Order Intercept point (OIP2)

> +47 dBm @ max. gain

Output 3. Order Intercept point (OIP3)

> +31 dBm @ max. gain

Impedance

50 Ω

Max. Input Power (dBm)

17 dBm

Ripple

≤ ±2 dB

Input-Output Isolation

> 20 dB

VSWR	< 3.5:1 (typ. < 2.0:1)

DC Supply

11 to 14 V DC / 60 mA

Mechanical

Connection(s)

N(f) (standard), BNC, TNC or SMA on request

Dimensions

129 (incl. conn.) x 152 (incl. flanges) x 35 mm
5.08 x 5.98 x 1.38 in.

Weight

0.35 kg / 0.77 lb.

Mounting

4.3 mm dia. (4 holes)

Environmental

Operating temperature range

-30 °C to +60 °C

Ordering Designations

Model	Product No.
PRO-LNAHP-4-3-2-12V-N	210000175
PRO-LNAHP-4-3-2-24V-N	210002296

Power Supply Connection

Gain Adjustment

The PRO-LNAHP is provided with gain adjustment option.
Gain is adjusted by turning a gain adjustment screw located 10 mm below a 4.5 mm hole on the top of the PRO-LNAHP housing. See drawing below.
Access to the adjustment screw hole is made by removing the black label on the top of the box.
The adjustment screw is a slotted type, which can be adjusted by an ordinary 2.5 mm screwdriver.

Typical Gain and VSWR curve

Typical Noise Figure

Mounting Details

All dimensions are given in mm [in.]

EU and UK Declaration of Conformity

Hereby Amphenol Procom declare that the product type PRO-LNAHP-4-3-2 is in compliance with EU Directive 2014/53/EU and
the UK Radio Equipment Regulations 2017 (S.I. 2017 No. 1206).
The full text of the Declaration of Conformity is available at:

https://amphenolprocom.com//images/shop/catalog/pdf-for-catalouges/Declaration-of-Conformity-PRO-LNAHP.pdf

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Low Noise AmplifiersPRO-LNAHP-4-3-2

Description

Specifications