Wspr transceiver

nealisconnor·wspr-transceiver·hardware/bbb/bbb.kicad_pcb

Wspr transceiver PCB layout, top view — open source board by nealisconnor

About the Wspr transceiver PCB

Wspr transceiver is an open source PCB design by nealisconnor, published on GitHub under the MIT license. It is a 4-layer board measuring 55.9 × 84.9 mm, with 73 components from 42 distinct parts.

Other key parts include the THS4304, Si5351A-B-GT, TS3A5017, TL972 and LD1117S33TR_SOT223. By type, the board carries 29 capacitors, 15 resistors, 8 ICs, 6 connectors, 2 diodes and 2 inductors.

It belongs with the rf & radio designs in this gallery.

From the project

for ELEC3607 Assignment 1

Group assignment modifying the WSPR-SDR platform to add a transmit path and redesigning the PCB as a full transceiver.

Part A — Software Transmitter Drives the Si5351's CLK2 output to generate a WSPR-encoded signal, looped back to the receiver input at RF. A C program encodes callsign, Maidenhead locator, and power level into the WSPR protocol and controls CLK2 via I²C.

Main components on the Wspr transceiver

THS4304Si5351A-B-GTTS3A5017TL972 LD1117S33TR_SOT223 BWSMA-KE-P001BS170TS5A23159DGSR

Wspr transceiver bill of materials (BOM)

73 components, 42 distinct parts.

Qty	Part	Footprint	Refs
1	THS4304	SOT-23-5	U1
1	Si5351A-B-GT	MSOP-10_3x3mm_P0.5mm	U2
1	TS3A5017	SOIC-16_3.9x9.9mm_P1.27mm	U3
1	TL972	SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm	U4
1	LD1117S33TR_SOT223	SOT-223-3_TabPin2	U5
1	BWSMA-KE-P001	BWSMA-KE-P001	U6
1	BS170	TO_SA06_ONS	U7
1	TS5A23159DGSR	DGS0010A_N	U8
1	Crystal	Crystal_SMD_TXC_7M-4Pin_3.2x2.5mm	Y1
1	Conn_02x14_Odd_Even	PinHeader_2x14_P2.54mm_Vertical	J1
1	Conn_02x20_Odd_Even	PinHeader_2x20_P2.54mm_Vertical	J2
1	FC68131	FC68131	J3
1	Inductor L1	TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal	J4
1	Inductor L2	TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal	J5
1	Inductor L3	TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal	J6
9	TestPoint_Small	TestPoint_Keystone_5000-5004_Miniature	CLK0_TP4, CLK1_TP5, Iout_TP6, Qout_TP7, RFIN_TP7, RFOUT_TP8, SCL_TP2, SDA_TP3 +1
1	GND BRIDGE	TestPoint_Bridge_Pitch7.62mm_Drill1.3mm	GND_TP0
1	LED yellow	D_0603_1608Metric	D1
1	LED blue	D_0603_1608Metric	D2
1	10uH	IND_2012_TDK	L4

Show 22 more

Qty	Part	Footprint	Refs
1	1uH	IND_1608_TDK	L5
9	0.1uF	C_0805_2012Metric	C1, C3, C4, C5, C6, C7, C8, C9 +1
1	0.01uF	C_0805_2012Metric	C2
2	3300pF	C_0805_2012Metric	C11, C12
2	100nF	C_0805_2012Metric	C13, C34
1	10uF	C_0805_2012Metric	C14
3	33pF	C_0805_2012Metric	C20, C25, C29
3	27pF	C_0805_2012Metric	C21, C26, C30
1	270pF	C_0805_2012Metric	C22
3	680pF	C_0805_2012Metric	C23, C27, C31
3	22pF	C_0805_2012Metric	C24, C28, C32
1	470pf	C_0805_2012Metric	C33
2	470	R_0805_2012Metric	R1, R3
2	47	R_0805_2012Metric	R2, R22
1	220	R_0805_2012Metric	R4
2	4.7k	R_0805_2012Metric	R5, R6
1	100	R_0805_2012Metric	R7
2	10K	R_0805_2012Metric	R8, R9
1	62	R_0805_2012Metric	R10
1	200	R_0805_2012Metric	R11
2	50	R_0805_2012Metric	R20, R21
1	100k	R_0805_2012Metric	R23

Wspr transceiver design files

The KiCad project lives in the nealisconnor/wspr-transceiver repository on GitHub; these links point at the commit this page was built from.

Layouthardware/bbb/bbb.kicad_pcb
Schematichardware/bbb/bbb.kicad_sch

Wspr transceiver: common questions

How big is the Wspr transceiver PCB?

The Wspr transceiver measures 55.9 × 84.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Wspr transceiver?

73 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wspr transceiver design files?

From the nealisconnor/wspr-transceiver repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wspr transceiver design in my own project?

Yes, under the terms of its MIT license, which nealisconnor chose for the repository.

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