09/05 Radio Meeting
- Dante Sivo (RIT Student)
- Jonathan Russo (RIT Student)
Owned by Dante Sivo (RIT Student)
Attendees
Topics:
- RF Options
- RF Part Options
- Datalink Block Diagram
RF Options
FM Radio Study: http://www.nab.org/xert/scitech/pdfs/rd022309.pdf
| Communication Type | Operational Range | Frequency Band | Estimated Data Rate | Pros | Cons |
|---|---|---|---|---|---|
| FM Radio | 88.0 MHz → 108.0 MHz | Proven Technology | Will have to account for nearby stations | ||
AM Radio | 540kHz → 1700kHz | Proven Technology | Will have to account for nearby stations | ||
| LoRa | 3 miles (urban), 10+ miles (line of sight) | 915MHz (NA) |
RF Part Options
| Part Name | Manufactuer | Outdoor Range | Datarate | Cost Per Part ($) | Comments | Link |
|---|---|---|---|---|---|---|
| XBP9X-DMUS-001 | XBEE | 105km | 10kbs→250kbps | 122.61 | Out of stock | https://www.digikey.com/en/products/detail/digi/XBP9X-DMUS-001/5972744 |
| RM191-SM | Laird Connectivity | 15km | 980bps → 21.kbps | 20.59 | https://www.digikey.com/en/products/detail/laird-connectivity-inc/RM191-SM/6109664 | |
| XBP9X-DMUS-011 | XBEE | 105km | 10kbs→250kbps | 122.61 | For Brazil, verify compatibility with NA bands | https://www.mouser.com/ProductDetail/DIGI/XBP9X-DMUS-011?qs=u4fy%2FsgLU9PDEP8%2FPyF26w%3D%3D&mgh=1&gclid=CjwKCAjwvNaYBhA3EiwACgndgiW93uZ33xD3WKOrKxhexVywvwCpBxA7gFkjh2RFBr7HZoGWrTvIGRoCq64QAvD_BwE |
| RN2903A-I/RM105 | Microchip | 15km | 300 kbps (FSK) 12.5 kbps (LoRa) | $17.40 | https://www.digikey.com/en/products/detail/microchip-technology/RN2903A-I-RM105/9867252 |
GPS Module Options
| Part Name | Manufactuer | Cost Per Part ($) | Comments | Link | Voltage | Peak Current Draw | Comm Standards |
|---|---|---|---|---|---|---|---|
| SAM-M8Q | UBlox | 31.50 | Integrated Antenna, UART only | https://www.digikey.com/en/products/detail/u-blox/SAM-M8Q-0-10/7393574 | 2.7-3.6V | 67mA | UART, USB, SPI, DDC |
| NEO-M8M | Ublox | 27.00 | Dev Kits available (Dante has one) | https://www.digikey.com/en/products/detail/u-blox/NEO-M8M-0/6150640 | 3.6V???? | 67mA | UART, SPI, DDC |
| NEO-M9N | Ublox | 27.00 | Newer iteration, higher data rate | https://www.digikey.com/en/products/detail/u-blox/NEO-M9N-00B/12149174 | 3.0V | 100mA | USB, UART, SPI, I2C |
| MAX-M8W | Ublox | 23.00 | Low Power Consumption | https://www.digikey.com/en/products/detail/u-blox/MAX-M8W-0/6150637 | 3.0V | 67mA | UART, DDC (I2C) |
GPS Performance Comparison
| Part Name | Position Accuracy | Systems Supported | Sensitivity (tracking and nav) | Max Altitude Max Velocity | Cold Start | Hot Sart | Receiver | Time Pulse Accuracy | Time Pulse Frequency | Update Rate |
|---|---|---|---|---|---|---|---|---|---|---|
| NEO-M9N | 2.0m | GPS, Gallio, | -167dBm | 80km 500m/s | 24s | 2s | Multi-constellation GNSS standard precision receiver engine | RMS 99% | 0.5Hz-10MHz | 25 Hz |
| MAX-M8W | 2.5m (Autonomous) 2.0m (SBAS) | GPS, GLONASS | -164 dBm | 50km 500m/s | 29s | 1s | 72-channel u-blox 8 | RMS 99% | 0.5Hz-10MHz | 18 Hz |
Datalink Block Diagram
