2xBLF188XR HF-LINEAR

2xBLF188XR HF-linear

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Written by Super User

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BLF188XR project is started!

I get PCB's 

 

RF-unit schema

LPF-Unit schema

Control-unit schema

Display/band selection

RTX-relay and ALC

Combiner 2 kW

 

 

 

 

BLF188XR module

  

SMD components on the board

SMD and Transformers

 Ready 1 kW pallet

  

 Measuring gain with VNA

 

 

Setup for gain measurement

 

 

Minimium gain 23 dB between 1 MHz to 60 MHz

 

 

  

Two pallet on the heat sink with old combiner.

 

1,5 kW:n RF module with heatsink

No, I dont drink Sinol, its good staff for drilling aluminium! (ethanol)

 

 

 

Fischer SK458.300 heatsink data

 

  

Very first test to dummy load

 

Almost 1,5 kW out!

 

 

 Heatsink and fans

 

 Control board and power supply

 

LPF + SWR-bridge + TRX-relay 

 

 

More powerful combiner.

 

1,5 kW on 20 m

 

 

 Next sand blast and painting

 After abrasive blast and painting

Thanks www.w6pql.com

 

 

 

NEW Project at 2020