Holybro Microhard Telemetry Radio Set
Price range: £229.00 through £929.00 Inc. VAT
Long-range, high-speed wireless data link for reliable drone and robotic communication – available in P900, P840, and P400-C1S versions to suit different frequency and range needs.
Holybro Microhard Telemetry Radio integrates microhard Pico Series RF module which is capable of delivering high-performance wireless serial communications in robust topologies, such as Point to Point, Point to Multipoint and secure Mesh (Mesh only available on P900).
It uses frequency hopping spread spectrum (FHSS) technology, providing reliable wireless asynchronous data transfer between most equipment types which employ a serial interface. Fixed frequency is available on the P840 version. The radio is configured using AT commands through the Data port or using PicoConfig application through the Diagnostic Port.
P900 Radio operate within the 902-928 MHz ISM frequency band while the P840 operate within 840-845Mhz, and P400 operate within 410-480MHz. You can select your radio based on your country’s available frequency band.
FCC ID: NS913P900
Feature
- USB Type-C port, integrated USB to UART converter
- 6-position JST-GH connector, can be directly connected to the TELEM port on various flight controller
- High voltage BEC onboard, Support DC7~35V voltage supply
- UART transmission LED indicator
- Three-stage RSSI LED indicator
- Transmission within a public, license-exempt band of the radio spectrum
- Transparent, low latency link rates up to 276 kbps (P900) and 345 kbps (P860 & P400)
- Supports a robust true Mesh operation with auto-routing (P900 Only)
- 32 bits of CRC, selectable retransmission and forward error correction
- Separate diagnostics port, transparent remote diagnostics and online network control
Specification
| P900 | P840 | P400-C1S | |
|---|---|---|---|
| Frequency Range | 902 to 928 MHz | 840 to 845 MHz | 410 to 480 MHz |
| Transmit Power (software adjustable) |
100mW to 1W (20-30dBm) | 100mW to 1W (20-30dBm) | 100mW to 1W (20-30dBm) |
| Link Rate | Up to 276 kbps | Up to 345 kbps | Up to 345 kbps |
| Serial Baud Rate | Up to 230.4 kbps asynchronous | 300 bps to 230 kbps | |
| Spreading Method | Frequency Hopping Spread Spectrum (FHSS) | Frequency Hopping/Fixed Frequency, GMSK, 2GFSK, 4GFSK, QPSK |
Frequency Hopping, GMSK, 2GFSK, 4GFSK, QPSK |
| Operating Modes | Mesh, Point-to-Point, Point-to-Multipoint, Store and Forward, Auto Routing, Self Healing, Packet Routing Modes |
Point-to-Point, Point-to-Multipoint, Store & Forward Repeater, Peer-to-Peer |
|
| Input Voltage | DC7~35V (4-position JST-GH) |
||
| Power Consumption | Sleep < 1mA Idle 3.5mA Rx: 45mA to 98mA Tx: 1000mA to 1400mA |
Sleep < 1mA Idle 20mA Rx: 45mA to 98mA Tx Peak: 2A |
Sleep < 1mA Idle 20mA Rx: 45mA to 98mA Tx Peak: 2A |
| Error Detection | 32 bits of CRC, ARQ | ||
| Antenna Gain | 5dBi | ||
| Weight | 44g (without antenna) 71g (with antenna) | 44g (without antenna) 71g (with antenna) | 44g (without antenna) 67g (with antenna) |
Other Technical details and downloads can be found on the Holybro Documentation page.
Reference Links
- 1x Microhard P840/P900/P400 Radio
- 1x Antenna
- 1x XT30 Power cable
- 1x GH 6P to 6P cable
- 1x Metal Pin
- 2x Microhard P840/P900/P400 Radio
- 2x Antenna
- 2x XT30 Power cable
- 1x GH 6P to 6P cable
- 1x Metal Pin
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SHIPPING & DELIVERY
We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weight and shipment location. We process orders Monday to Friday and pride ourselves on our quick turnaround of orders - most UK orders will arrive the next day.
We are partnered with several delivery companies including Royal Mail, DHL, UPS and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us.
A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
Shipping to the UK
- Order before 4PM for same day dispatch with Royal Mail, 2PM for next day delivery with DHL and 1PM for next day delivery with APC.
- We offer FREE Shipping on UK orders over £99, weighing less than 1kg.
- The courier options deliver Monday to Friday, Royal Mail delivers to residential addresses on Monday to Saturday.
For small low value orders our cheapest delivery service is Royal Mail First Class. For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options.
International Postage
- Order before 4PM for same day dispatch with Royal Mail.
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- DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days.
Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.
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