Pacific Antenna Dummy Load V2 Manual Download Page 3

Install R55 the 41.2K ohm (Yellow-Brown-Red-Red-Brown) resistor in the marked location on the board

Install R56, the 100K resistor (Brown-Black-Black-Orange-Gold) in the marked location on the board. 

Note: R56 is now a 1% resistor and has a blue body.  The photo below shows a 5% resistor for R56.

Install C1 the 0.01uF capacitor in the location marked on the board.

Install the 4 pin Header in the location SV1.  You will find it helpful to just solder 1 pin and then make sure
it is straight and flush to the board.   If not, reheat that pin and adjust the header for alignment before
soldering the additional pins. 

Now, solder the BNC connector, making sure to seat it fully into the board.  Solder the two small wires
and the two support pins.  

The support pins may require longer time, increased temperature or a larger soldering iron to properly
solder. 

Congratulations, your dummy load kit is now complete!

DummyLoad20190402

            

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Summary of Contents for Dummy Load V2

Page 1: ... to 15 Watts with just a digital Multimeter Usable from DC to 60MHz Includes all the components and circuit board Inspection and Inventory First check the kit to be sure all parts are included Should anything be missing please contact us for a replacement 30 R1 R30 1 5 K 1 2 watt resistors Brown Green Red Gold 1 R55 41 2K 1 4W 1 resistor Yellow Brown Red Red Brown 1 R56 100K 1 4W 1 resistor Brown ...

Page 2: ...ing the leads easier First pre bend the leads near the resistor bodies and then insert them into the board Push or pull the resistors down flush to the board and bend the leads on the backside to hold them in place while soldering Trim the excess leads close to the board Install solder and trim the leads of D1 Be sure to match the band end to the diagram above and the outline on the circuit board ...

Page 3: ...rd Install the 4 pin Header in the location SV1 You will find it helpful to just solder 1 pin and then make sure it is straight and flush to the board If not reheat that pin and adjust the header for alignment before soldering the additional pins Now solder the BNC connector making sure to seat it fully into the board Solder the two small wires and the two support pins The support pins may require...

Page 4: ... 3 of SV1 Pin 2 provides the RMS value of the RF voltage Pin 3 gives the Peak value of the RF voltage Pin 4 is direct RF voltage across the resistors RF power is calculated from this relationship Power Vrms 2 50 Note The power input should be limited to 15W to avoid damaging resistors and circuit components Specifications Recommended Power Limits 15 watts 5 minutes 10 watts 10 minutes 5 watts or l...

Page 5: ...Schematic Copyright 2016 2019 Pacific Antenna www qrpkits com DummyLoad20190402 5 ...

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