OSS-Radio 2M70CM
About the OSS-Radio 2M70CM PCB
OSS-Radio 2M70CM is an open source PCB design by Arkos-Engineering, published on GitHub. It is a 4-layer board measuring 31 × 40 mm, with 83 components from 38 distinct parts.
Other key parts include the C5379863, C90084, C122881, C616257 and C2654715. By type, the board carries 38 capacitors, 21 resistors, 10 inductors, 5 ICs, 3 transistors and 1 crystal.
It belongs with the rf & radio and displays & leds designs in this gallery.
From the project
We can split this out into separate repos later, right now its very convenient to have everything here.
What will set this radio apart from competitors is:
Fully open source, hardware and software Swappable radio module, allowing easy hardware upgradability (2M/70CM at launch) USBC charge and data, SD card, Kenwood style audio connector, removable battery Low-power E-ink display targeting 72+ hour standby time FM and M17 support at launch, with plans to support many other digital modes in the future such as DMR, P25 (depending on codec licensing) Ability for community to write and easily install “apps” that allow custom features or arbitrary digital mode development Usable “off the shelf”. We…
Main components on the OSS-Radio 2M70CM
OSS-Radio 2M70CM bill of materials (BOM)
83 components, 38 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C5379863 GRF5504 | LQFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm | U3 |
| 1 | C90084 TPS7A4701xRGW | Texas_RGW0020A_VQFN-20-1EP_5x5mm_P0.65mm_EP3.15x3.15mm_ThermalVias | U4 |
| 1 | C122881 CC1200 | QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U5 |
| 1 | C616257 AT24CS01-STUM | SOT-23-5 | U6 |
| 1 | C2654715 SKY13330-397LF | QFN_330-397LF_SKY | U7 |
| 3 | C52895 BSS138 | SOT-23 | Q1, Q2, Q3 |
| 1 | C20341501 TG-5021CG | Oscillator_SMD_SeikoEpson_TG2520SMN-xxx-xxxxxx-4Pin_2.5x2.0mm | Y4 |
| 1 | C424639 DF40C-24DP-0.4V | CONN24_6p32X1p85_hdr_HIR | J1 |
| 1 | C2934607 MMCX-J-P-H-RA-TH1 | MMCX_Molex_73415-1471_Vertical | AE2 |
| 3 | C22431324 WA-SMSI_9774XXX243 | Mounting_Wuerth_WA-SMSI-M2_H2.5mm_9774025243 | MP1, MP2, MP3 |
| 2 | C79382 BLM21PG121SN1D | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1, FB2 |
| 1 | C269823 39n | L_0402_1005Metric | L3 |
| 1 | C91626 5.6nH | L_0402_1005Metric | L10 |
| 1 | C2043859 33n | L_0402_1005Metric | L11 |
| 1 | C1012790 56n | L_0402_1005Metric | L12 |
| 1 | C1012789 51n | L_0402_1005Metric | L13 |
| 1 | C882467 6.8n | L_0402_1005Metric | L14 |
| 1 | C2043868 20n | L_0402_1005Metric | L15 |
| 1 | C524641 22n | L_0402_1005Metric | L16 |
| 1 | C77101 47uF | C_1210_3225Metric | C14 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | C77006 1uF | C_0402_1005Metric | C15, C37, C61 |
| 5 | C77045 4.7uF | C_0603_1608Metric | C16, C17, C18, C19, C23 |
| 4 | C71629 .1uF | C_0402_1005Metric | C20, C38, C43, C60 |
| 3 | C85873 10pF | C_0402_1005Metric | C39, C40, C66 |
| 1 | C1864241 39p | C_0402_1005Metric | C41 |
| 1 | C1864641 24p | C_0402_1005Metric | C42 |
| 13 | C77017 47n | C_0402_1005Metric | C44, C45, C46, C47, C48, C49, C50, C51 +5 |
| 1 | C77011 220n | C_0402_1005Metric | C53 |
| 1 | C85735 10n | C_0402_1005Metric | C54 |
| 1 | C161482 1n5 | C_0402_1005Metric | C57 |
| 3 | C126493 1n | C_0402_1005Metric | C58, C62, C63 |
| 1 | C237274 18p | C_0402_1005Metric | C65 |
| 3 | C137992 3k3 | R_0402_1005Metric | R8, R18, R20 |
| 5 | C965237 6k8 | R_0402_1005Metric | R9, R13, R14, R19, R21 |
| 4 | C138022 27k | R_0402_1005Metric | R10, R11, R26, R28 |
| 1 | C114756 56k 1% | R_0402_1005Metric | R12 |
| 2 | C854359 51 1% | R_0402_1005Metric | R15, R16 |
| 6 | C60485 0 | R_0402_1005Metric | R22, R23, R24, R25, R27, R29 |
OSS-Radio 2M70CM design files
The KiCad project lives in the Arkos-Engineering/HT-15_hardware repository on GitHub; these links point at the commit this page was built from.
OSS-Radio 2M70CM: common questions
How big is the OSS-Radio 2M70CM PCB?
The OSS-Radio 2M70CM measures 31 × 40 mm, has 4 copper layers and is 1.5798 mm thick.
How many components are on the OSS-Radio 2M70CM?
83 components, from 38 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 OSS-Radio 2M70CM design files?
From the Arkos-Engineering/HT-15_hardware 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 OSS-Radio 2M70CM design in my own project?
The repository has no license, so all rights stay with Arkos-Engineering. Use it as a reference, and ask the author before reusing the design.
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