HardLabs

RX 50MHz SDR

ne9n·RC_6m·KiCad_Projects/RX_50MHz_SDR/RX_50MHz_SDR.kicad_pcb

RX 50MHz SDR PCB layout, top view — open source ESP32 board by ne9n

About the RX 50MHz SDR PCB

RX 50MHz SDR is an open source ESP32 PCB design by ne9n, published on GitHub. It is a 2-layer board measuring 150 × 85 mm, with 44 components from 33 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the LT5560EDD#PBF, SPF5043Z, Si5351A-B-GT, AP2112K-3.3TRG1 and BGS12PL6. By type, the board carries 12 connectors, 11 capacitors, 7 ICs, 4 inductors, 3 diodes and 2 resistors.

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

From the project

This project focuses on designing and building a modern 50MHz (6-meter) radio control system using the amateur radio bands. It features a high-power 1W transmitter and a high-sensitivity receiver, integrated into a vintage Kraft 7 transmitter case with a modern digital encoder.

Main components on the RX 50MHz SDR

ESP32-S3-WROOM-1LT5560EDD#PBFSPF5043ZSi5351A-B-GTAP2112K-3.3TRG1BGS12PL6INA219AIDCNR

RX 50MHz SDR bill of materials (BOM)

44 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1
Skyworks
U1
1
LT5560EDD#PBF
Mitsubishi
U2
1
SPF5043Z
Analog Devices
U3
1
Si5351A-B-GT
Qorvo
U4
1
AP2112K-3.3TRG1
Infineon
U5
1
BGS12PL6
Espressif
U6
1
INA219AIDCNR
Espressif
U7
1
26MHz
ECS Inc.
Y1
1
ANTENNA
J1
1
SERVO_5V_IN
J2
1
BATT+
J3
1
ESC+
J4
1
SERVO1
J5
1
SERVO2
J6
1
SERVO3
J7
1
SERVO4
J8
1
SERVO5
J9
1
SERVO6
J10
1
SERVO7
J11
1
SERVO8
J12
Show 13 more
QtyPartRefs
1
470uF
CBULK1
2
0.1uF
C_bgsvdd1, C_ina1
1
10.7MHz
FL1
1
SS14
D1
2
BAV99
D2, D3
2
220nH
L1, L2
1
1uH
L3
1
10uH
L4
5
100pF
C1, C2, C3, C5, C8
3
10nF
C4, C6, C7
1
0.1uF
C9
2
10uF
C10, C11
2
4.7k
R1, R2

RX 50MHz SDR design files

The KiCad project lives in the ne9n/RC_6m repository on GitHub; these links point at the commit this page was built from.

RX 50MHz SDR: common questions

What microcontroller does the RX 50MHz SDR use?

The RX 50MHz SDR is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the RX 50MHz SDR PCB?

The RX 50MHz SDR measures 150 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RX 50MHz SDR?

44 components, from 33 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the RX 50MHz SDR design files?

From the ne9n/RC_6m repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the RX 50MHz SDR design in my own project?

The repository has no license, so all rights stay with ne9n. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RX 50MHz SDR without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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