Differences

This shows you the differences between two versions of the page.

--- waoarc25:kit-build-guide [2025/07/28 12:08] – created gi3jmc
+++ waoarc25:kit-build-guide [2025/07/30 10:54] (current) – [Transistor] gi3jmc
@@ Line 3: / Line 3: @@
 This guide will walk you through putting the WSPR Hat Kit together.
-*** This guide is currently being edited :-) (From Monday 28th July @ 1pm) ***
+Please ask in the #waoarc-kit channel on Discord if you have any issues or questions.
 ----
@@ Line 9: / Line 9: @@
 ==== Prerequsites ====
-In your kit, you should have received the following:
+In your kit, you should have received the items in the table below. Please check you have everything before you begin:
+|1x 20k variable resistor                    |1x 47uf 16v Electrolytic Capacitor   |2x 4-pin sockets  |
+|1x 47Ω resistor (Yellow Purple Black Gold)  |3x 100nf Capacitor marked BC 104K    |1x 40-pin socket  |
+|1x 20KΩ resistor (Red Black Orange Gold)    |1x BS170 transistor                  |15cm fine enamelled copper wire  |
+|1x 1Ω resistor (Brown Black Gold Gold)      |1x LED (orange diffused)             |1x SMA Edge-mounted socket   |
+|1x 15KΩ resistor (Brown Green Orange Gold)  |1x 1N4148 Small Signal Diode, 100 V, 150 mA, 1 V  |:::  |
+|1x 270Ω resistor (Red Purple Brown Gold)    |1x Push button momentary switch      |:::  |
+|1x 2KΩ resistor (Red Black Red Gold)        |1x FT37-43 Ferrite                   |:::  |
+The kit also __requires__ a QRPLabs Low Pass Filter.  If one was requested with your kit, it will be included in it's own ziplock bag.
+----
+==== Resistors ====
+<WRAP left round box half>
+Install all the resistors and trimmer variable resistor.  The board is marked to assist you.\\
+//Tip - Try to have the coloured bands in the same orientation.  It looks nice.//
+^Reference ^Component ^
+|RV1 |20KΩ Trimmer variable resistor |
+|R2 |47Ω (Yellow Purple Black Gold) |
+|R3 |20KΩ (Red Black Orange Gold) |
+|R4 |1Ω (Brown Black Gold Gold) |
+|R5 |15KΩ (Brown Green Orange Gold) |
+|R6 |270Ω (Red Purple Brown Gold) |
+|R7 |2KΩ (Red Black Red Gold) |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-resistors.png?direct&600|}}
+</WRAP>
+----
+==== Capacitors ====
+<WRAP left round box half>
+Install the capacitors.
+**NOTE: C1 is an electrolytic capacitor so the orientation is critical or the magic smoke may escape.**  Long leg is positive, and short Leg is negative.  Match the white band on the capacitor to the white area on the board
+//Tip - Try to orient the other capacitors so the writing faces the edge of the board and can be easily read.//
+^Reference ^Component ^
+|C1 |47uf 16v Electrolytic Capacitor |
+| C2, C3, C4 |100nf Capacitor marked BC 104K |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-c1_closeup.png?direct|}}
+{{ :waoarc25:wsprkit-capacitors.png?direct&600|}}
+</WRAP>
+----
+==== Transistor ====
+<WRAP left round box half>
+Install the transistor. Make certain the direction installed matches the silkscreen on the board (Flat surface towards edge).
+The pads are quite small and really close together - make sure you don't bridge them together when soldering.
+^Reference ^Component ^
+|Q1 |BS170 Transistor |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-transistor_close.png?direct|}}
+{{ :waoarc25:wsprkit-transistor.png?direct&600|}}
+</WRAP>
+----
+==== Diodes ====
+<WRAP left round box half>
+Install the diodes in poistions D1 & D2.\\
+Note the orientation of the diodes.  The LED short leg must be closest to the edge of the board.  The signal diode has a black stripe on one end which may be hard to see.  It should be positioned closest to the edge of the board, matching the outline on the board.
+^Reference ^Component ^
+|D1 |LED (orange diffused) |
+|D2 |1N4148 Small Signal Diode, 100 V, 150 mA, 1 V  |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-diodes.png?direct&600|}}
+</WRAP>
+----
+==== Switch ====
+<WRAP left round box half>
+Install the push button switch.  The switch and it's mounting holes are slightly rectangular.  It will work in either of the two possible orientations.
+^Reference ^Component ^
+|SW1 |Push button momentary switch |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-switch.png?direct&600|}}
+</WRAP>
+----
+==== Inductor ====
+<WRAP left round box half>
+Wind the ferrite core with 4 turns of wire as shown.  Each time the wire passes through the centre counts as one turn.
+//Note: Crop the leads longer than necessary, and scrape, sand, or heat the coating to remove it before fitting and soldering.  Heating can be done with a lighter, or a very hot soldering iron.//
+^Reference ^Component ^
+|L1 | FT37-43 Ferrite with 4 turns of wire |
+</WRAP>
+<WRAP left round box half>
+| {{:waoarc25:wsprkit-inductor-close.png?direct|}} | {{:waoarc25:wsprkit-inductor-fitted.png?direct|}} |
+</WRAP>
+----
+==== Connectors ====
+<WRAP left round box half>
+Connector J2 (the 40-pin) is positioned on the underside of the board.\\
+Connectors J5 & J6 are fitted to the component side of the board.\\
+Connector J4 (the SMA socket) is positioned on the edge of the board, with the centre pin connection on the top, component side of the board. All 4 ground pins should be soldered to the board, not just the pair adjacent to the centre pin.
+^Reference ^Component ^
+|J2 |40-pin socket  |
+|J4 |SMA edge-mounted socket  |
+|J5, J6 |4-pin socket |
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-40pin-socket.png?direct&600|}}
+</WRAP>//
+<WRAP left round box half>
+|{{ :waoarc25:wsprkit-sma-2.png?direct&275|}}|{{ :waoarc25:wsprkit-sma-1.png?direct&275|}}|
+</WRAP>
+<WRAP left round box half>
+{{ :waoarc25:wsprkit-complete.png?direct&600|}}
+</WRAP>//
+----
+==== Filter Installation ====
+<WRAP left round box half>
+When connecting your filter, (build instructions at [[https://qrp-labs.com/images/lpfkit/assembly_A4.pdf]]) you should ensure that is inserted in the correct orientation.  The filter has 'IN' and 'OUT' text on the ends, and you need the 'OUT' nearest the SMA connector.
+</WRAP>
+<WRAP left round box half>
+{{:waoarc25:wsprkit-filter-installed.jpg?direct|}}
+</WRAP>