1kW 1.8-30MHz, 700-500W 50-70MHz HF POWER AMPLIFIER MODULE BLF188XR For Sale


1kW 1.8-30MHz, 700-500W 50-70MHz HF POWER AMPLIFIER MODULE BLF188XR
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1kW 1.8-30MHz, 700-500W 50-70MHz HF POWER AMPLIFIER MODULE BLF188XR:
$427.00

This board was created to enable the use of the latest LDMOS-FET\'s devices.

With this board, can be used with different types of LDMOS transistors.
For example- BLF178, BLF178XR, BLF188, BLF188XR, BLF578, BLF578XR,MRF6VP11KH, MRFE6VP61K25HR6.

Technical characteristics for BLF188XR.

This 1400 W extremely rugged LDMOS power transistor for broadcast and industrial applications in the HF to 600 MHz band.

TheBLF188XR and BLF188XRS are capable of withstanding a load mismatch correspondingto VSWR > 65:1.

In a rangefrom 2 to 30MHz (test signal CW) BLF188XR, Pout is 1270W.


MODULE FEATURES

  • Model: PA Unit BLF188XR - ReV. 2015.2
  • Frequency range:1.8-50MHz
  • RF power output:1000W typical, 1200W max. 1.8-35MHz; 700W 50MHz.
  • Modes Supported: FM, CW, SSB and others.
  • RF power input: 7W typical, 10W max.
  • Supply: 50-54VDC / 30-32A
  • Board dimensions: 163 x 120 mm

BIAS adjusted in accordance with temperature.

Vbias: 12Vfor keying the amplifier

For better IMD, usenegative response circuit.

Additionalelements for AFC correction.

Input VSWR is optimized withattenuator on PA input.

The heatsink and a copper heat spreader (not supplied) have to be larger than 200X140 mmand proper fan cooling must be provided too.

If you want to get 1000W Pout, you need very low input power, about 3-5W Pin. In this order, you need to be very carefully on first power on.

On 160m, 80m, 40m, 30m, 12m, 10m can be Pout up to 1200W. On 50MHz can be Pout up to 700W.On 70MHz can be Pout up to 500W.

To increase the gain at frequencies of 30-70 MHz is possible by changing the values of capacitors C21, C11, C48.

A fulltechnical documents with all instructions on CD is provided with the board.

For a techsupport, please E-mail me ut2fw(at)mail.ru

You can buy a Module with Heat sink and Copper plate - price 487$. This kit will greatly increase the weight of the parcel. Therefore will increase the cost of shipping (about 90$). If you want to buy this kit - make a request to my E-mail.

Pictures of ready LPF600 + PA Unit of the amplifier with BLF188XR -



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