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RX small preamp with 2SC5551 KIT

The RX small preamp is very simply low noise preamplifier module with 2SC5551 transistor based on W7IUV design. Use it as high IP preamplifier for RX antennas, buffer amplifier or small driver.

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  • SMA
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Description

This RX small preamp with 2SC5551 is a very useful device based on W7IUV design. You can use it as high IP preamplifier for RX antennas, buffer amplifier or small driver. Gain is up to 18dB and there is also built in variable ATT. You can easy set gain as high as you need! Amplifier has got low noise - lower than 2 dB up to 50 MHz and around 2.2 dB at 150 MHz. As well you can set right transistor bias with multi turn potentiometer. Two relays offer bypass switching if there is no power supply.


Using

  • High IP, Low Noise RX preamplifier - RX antennas
  • Buffer amplifier
  • Driver amplifier

Main functions

  • Broadband: 0.1 MHz to 60 MHz (11 dB at 150 MHz)
  • Very high IP3
  • Good gain up to 18 dB
  • Low Noise Figure (NF) 1.2 to 2 dB (2.5 dB at 150 MHz)
  • High output power up to 26 dBm
  • Variable ATT for gain 0 to 18 dB
  • Bypass relays
  • You can set transistor bias as you need by trimmer
  • High quality relays with TWO contact parallel
  • DC plug included
  • Quality SMA connectors
  • KIT VERSION

Parameters

  • NPN transistor 2SC5551A
  • Supply voltage 12 - 14 V
  • BIAS current 10 to 70 mA
  • Supply current up to 180 mA include relays!
  • Gain up to 18 dB
  • Low Noise Figure (NF) 1.2 dB (20 mA 50 MHz)
  • Low Noise Figure (NF) < 2 dB (60 mA 50 MHz)
  • Low Noise Figure (NF) 2.3 dB (20 mA 150 MHz)
  • REAL IP3 32 dBm
  • PCB size 50x50.4 mm


Available as

KIT: all parts + PCB
KIT with BOX: all parts + PCB - KIT VERSION
ASSEMBLED: ready to use - ASSEMBLED VERSION
ASSEMBLED with BOX: ready to use - ASSEMBLED VERSION

KIT contains

  • pre-assembled PCB
  • SMA connectors
  • ferrite core
  • trimmers
  • led diode
  • relays
  • transistor
  • pin header, jumper
  • DC plug
  • DC power jack
  • Cu wire
IMPORTANT NOTE: THIS PRODUCT IS A KIT - you have to assemble it by yourself!

Manual

If you want to know more please check our wiki with RX small preamp with 2SC5551 manual.

rx small preamplifier kit by qro.cz hamparts.shop



rx small preamplifier assembled by qro.cz hamparts.shop



rx small preamplifier with 2SC551 table by qro.cz hamparts.shop



Gain 10 dB 0.5 MHz to 50 MHz

measure rx small preamp 2SC5551 by qro.cz hamparts.shop



Gain 15 dB 0.5 MHz to 50 MHz

measure rx small preamp 2SC5551by qro.cz hamparts.shop



Gain 18 dB 0.5 MHz to 50 MHz

measure rx small preamp 2SC5551 by qro.cz hamparts.shop



Bypass 0.5 MHz to 50 MHz

measure rx small preamp 2SC5551 by qro.cz hamparts.shop



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Product Details

Data sheet

type
KIT
design
pcb module
usage
RX
impedance
both 50 & 75 Ohm
front-end protection
none
frequency range
0.1 MHz to 60 MHz

Specific References

EAN13
1000090107756
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The RX small preamp is very simply low noise preamplifier module with 2SC5551 transistor based on W7IUV design. Use it as high IP preamplifier for RX antennas, buffer amplifier or small driver.
The RX small preamp is very simply low noise preamplifier module with 2SC5551 transistor based on W7IUV design. Use it as high IP preamplifier for RX antennas, buffer amplifier or small driver.
The RX small preamp is very simply low noise preamplifier module with 2SC5551 transistor based on W7IUV design. Use it as high IP preamplifier for RX antennas, buffer amplifier or small driver.

manuals

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