4 layers40 × 40 mm
Pre filter
dfdtc/RMUC2026_RF
This is the pubilc repository of BNBU 2026 RMUC RF part of Radar
23 parts14GPL-3.0
4 layers50 × 50 mm
Distramp
SvalbardHAB/DistributionAmp3434MHz/868MHz LoRa distribution amplifier (BPF and LNA followed by splitter)
- Size
- 50 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 14
- Pads
- 98
- Tracks, vias
- 262, 92
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 12 Jul 2016
- Updated
- 12 Oct 2017
Overview
Distramp is an open-source printed circuit board by SvalbardHAB, from the SvalbardHAB/DistributionAmp repository on GitHub. It is a 4-layer board of 50 × 50 mm with 28 parts on 14 nets, routed with 262 tracks and 92 vias.
It is built around the B39431B3710U410 and ESDAXLC6-1BT2. Its parts include 8 capacitors, 6 connectors, 5 resistors, 5 inductors and 2 ICs. It belongs with the radio and wireless boards of this library.
Main components
2
B39431B3710U410
SMD3030-6P-40℃~+85℃ 1.7MHz 2dB 433.92MHz 50Ω SMD3030-6P SAW Filters ROHSQualcommSAW Filters
ESDAXLC6-1BT2
SOD-882T-40℃~+150℃ 0.4pF 1 1.3A@8/20us 17V 3V 40W@8/20us 6V 70nA Bidirectional IEC 61000-4-2 TVS SOD-882T ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.mdDistributionAmp
434MHz/868MHz LoRa distribution amplifier (BPF and LNA followed by splitter)
This is a simple board designed to improve the performance of a LoRa system, as well as allowing multiple receivers at multiple frequencies or for redundancy (e.g. we used this for a one-off HAB experiment opportunity).
It features:
- Input SAW filter for out-of-band noise rejection (e.g. 800MHz 4G) with ESD protection
- MAAL-010704 (0.8dB NF, 20dB gain) LNA
- Inductive splitter to four outputs with SMA connectors
- Low noise 3V LDO powering the LNA
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 72n | Resistors_SMD:R_0402 | L2, L3, L4, L5 |
| 4 | DNP | Resistors_SMD:R_0402 | R2, R3, R4, R5 |
| 4 | OUT | Custom Parts:RFcon | P2, P3, P4, P5 |
| 3 | 1n | Capacitors_SMD:C_0402 | C1, C6, C7 |
| 2 | 10n | Capacitors_SMD:C_0402 | C3, C4 |
| 2 | 4.7µ | Capacitors_SMD:C_0805 | C2, C5 |
| 1 | 100µ | Capacitors_Tantalum_SMD:TantalC_SizeD_EIA-7343_Reflow | C8 |
| 1 | 120 | Resistors_SMD:R_0402 | R1 |
| 1 | 82n | Resistors_SMD:R_0402 | L1 |
| 1 | ANT | Custom Parts:RFcon | P1 |
| 1 | B39431B3710U410 | Custom Parts:SAW-DCC6C | SAW1 |
| 1 | ESDAXLC6-1BT2 | Resistors_SMD:R_0402 | D1 |
| 1 | MAAL-010704 | TO_SOT_Packages_SMD:SC-70-6_Handsoldering | U1 |
| 1 | PWR | Pin_Headers:Pin_Header_Straight_1x02 | P6 |
| 1 | TPS796xxDCQ | Custom Parts:SOT-223-6 | U2 |
Similar boards
- 4 layers99.1 × 99.1 mm
TACNPR
partio-scout/scoms-tacnpr
TACNPR by Scoms -- Open hardware high-speed Ethernet/IP data radio for the 433 MHz HAM band, binary-compatible with the original NPR by F4HDK.
310 parts9 - 2 layers282.6 × 92 mm
Chavdai40
dvorak55/chavdai40
Challenge to Handle Acoustic-noise, Verify Drastic Abductive Implementation.
109 parts6MIT - 2 layers388 × 126.1 mm
- 4 layers
- 4 layers85 × 25 mm
- 4 layers25.1 × 34 mm
Pe42543 breakout
loxodes/vna
Under development open hardware microwave vector network analyzer
28 parts205 - 4 layers35.1 × 25.3 mm
T41-si5351A B GM Oscillator daughterboard
DRWJSCHMIDT/T41
This is the repository for the officially released V10, V11, and V12 versions of the T41 Software Defined Transceiver hardware and kits.
28 parts66
Questions
How big is the Distramp PCB?
It measures 50 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Distramp use?
28 parts, built around the B39431B3710U410 and ESDAXLC6-1BT2. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Distramp KiCad files?
From the SvalbardHAB/DistributionAmp repository on GitHub, at the commit this page was made from: the board is distramp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Distramp design in my own project?
Its repository states no licence, so its author keeps all rights: ask SvalbardHAB before reusing the design.