Long Range Telemetry Modem- RFD900x

Long Range Telemetry Modem- RFD900x

RFD900x Telemetry Modem all the great features of the popular RFD900+, plus AES encryption and PPM passthrough!. This is the ideal solution for long range telemetry or communications.  Two RFD900x modems with antennas for all antenna ports.


  • New Processor, ARM 32 bit core.
  • Air data rate: 500kbit/s.
  • AES Hardware accelerated encryption.
  • RC PPM Passthrough with telemetry.
  • Fully ESD protected + filtered – Every IO port is protected and filtered.
  • Original SiK point to point, multipoint firmware implemented.
  • Asynchronous multipoint firmware *Beta release*
  • Long range +40km depending on antennas and GCS setup
  • 2 x RP-SMA RF connectors, diversity switched.
  • 1 Watt (+30dBm) maximum transmit power.
  • Transmit low pass filter.
  • >20dB Low noise amplifier, high IP3.
  • RX SAW filter.
  • Small and lightweight.
  • Compatible with 3DR / Hope-RF radio modules.
  • License free use in Australia, Canada, USA, NZ


  • RF: 2 x RP-SMA connectors
  • Serial: Logic level TTL (+3.3v), 5v Tolerant
  • Power: +5v, ~800mA max peak (at maximum transmit power)
  • GPIO: 6 General purpose IO (Digital, ADC, PWM capable)



  • Frequency Range:  902 – 928 MHz (USA) / 915 – 928 MHz (Australia)
  • Output Power: 1W (+30dBm), controllable in 1dB steps ( +/- 1dB @=20dBm typical )
  • Air Data transfer rates: 4, 8, 16, 19, 24, 32, 48, 64, 96, 128, 192 and 250, 500 kbit/sec ( User selectable, 64k default )
  • UART data transfer rates: 9600, 19200, 38400, 57600, 115200, 400k, 921k baud  ( User selectable, 57600 default )
  • Receive Sensitivity: >121 dBm at low data rates, high data rates (TBA)
  • Size: 30 mm (wide) x 57 mm (long) x 12.8 mm (thick) – Including RF shield, heatsink and connector extremities.
  • Weight: 14.5g
  • Mounting: 3 x M2.5 screws, 3 x header pin solder points
  • Power Supply: +5 V nominal, (+3.5 V min, +5.5 V max), ~800 mA peak at maximum power
  • Temp. Range: -40 to +85 deg C, tested operational from -73 to +123 deg C.

Samsung Galaxy Tab 3 T211 Tablet

Samsung Galaxy Tab 3 T211 TabletThe Samsung Galaxy Tab 3 is the latest offering by Samsung for the Tablet segment of the smartphone market. The device comes with updated specifications and hardware which translates into faster performance while delivering a stable base of operations.

Device Specifics

The Single SIM GSM device is powered by a 1.2 GHz Dual Core processor which is more than capable of meeting its processing needs. The Dual Core set up allows for better device power management for the device as well. The system incorporates the latest in Android OS technology. The version present in the Samsung Galaxy Tab 3 is the 4.1 Jellybean Version. It uses Samsung’s own TouchWiz User Interface. The interface has been designed to associate fluid movements and low memory load on the device. It has a RAM capacity of 1 GB which is more than sufficient for enabling Multitasking capabilities on the device.

Memory and Multemedia

In terms of memory, the Galaxy Tab 3 by Samsung comes with 8 GB of Internal memory which can also be extended to another 32 GB via a MicroSD card. This memory expansion is particularly useful when you take HD Videos with the 3 MP primary camera at 30 fps. The Tab also comes with a 1.3 MP secondary camera which can be used for video calls. The screen used in the device is 7 inches in area and has a TFT Capacitive Touch setup. It has a resolution of 1024 x 600 p with support for 16 M colors. It is also multi touch enabled.

Connectivity and Power

It is capable of WiFi connectivity as well as USB 2.0 connectivity. The device comes with Bluetooth connectivity as well. The battery used in the Samsung Galaxy Tab 3 is a massive 4000 mAh Li-Ion cell.



Brand Samsung
Model ID Galaxy Tab 3 T211
Color White
Processor 1.2 GHz Dual Core
Voice Call Yes
Supported Networks 2G: GSM 900, 1800; 3G: UMTS 2100
In The Box Tablet, Data Cable, Travel Adapter
Operating System Android 4.1 (Jelly Bean)
Sensors Geo-magnetic Sensor, Light Sensor, Accelerometer, Proximity Sensor
Internal Storage 8 GB
Expandable Storage Capacity 32 GB
Memory Card Slot type microSD
Display Type 7 inch TFT Capacitive Touchscreen with 1024 x 600 pixels ,16 M Colors
Other Display Features Multi-touch
Primary Camera 3 megapixels
Secondary Camera 1.3 megapixels
Video Recording Yes
Other Camera Features Shot Mode, Framed Photos
Mail Features Email
Battery Type 4000 mAh Lithium – Ion
Talk Time 20 hrs (3G)
Wi-Fi Yes, 802.11 a/b/g/n
3G Yes
Other Internet Connectivity Options Gprs, Edge
Pre-Installed Browser Android
Video Playback Yes , Full HD Playback
Video Formats Supported H.263, H.264, DivX, WMV, MPEG4
Audio Formats Supported MP3, WMA, AAC, OGG, eAAC+, AC-3, WAV, apt-X, AAC+, AMR-NB, AMR-WB, FLAC
Map Support Google Maps
Other Connectivity Features Wi-Fi Hotspot, Wi-Fi Direct, DLNA Support
USB Yes, USB 2.0
Audio Jack 3.5 mm Headphone Jack
Bluetooth v3, Supported Profiles(A2DP, AVRCP, OPP, PAN, HSP, SPP, HID)
Dimensions 188 x 111.1 x 9.9 mm
Weight 304 g
Head SAR Value : 0.749 W/Kg, 50 GB Free Dropbox Space, 2 GB Data by Vodafone on Postpaid Connections, ChatON, Google+ Hangouts, Group Chat, Buddy Interaction, Best Hand Grip, Games Hub, Music Hub, Readers Hub, Samsung Apps, 50 GB Free Dropbox Space, 2 GB Data by Vodafone on Postpaid Connections
Warranty Summary 1 Year manufacturer warranty for the Tablet, 6 months manufacturer warranty for other inbox accessories
Users Review

Super clarity
3mp primary camera is good
1.3 mp camera for video chats works decent
display clarity is excellent
touch sensitivity
and all features work better

Slight heating observed
Internal memory is 8GB – you can use only maximum 5 or 4GB
Microsim – your SIM needs to be cut into small size
Price could have been a bit lower i.e. around rs. 13k to 15k.
Not big improvement over Tab2, except addition of 0.2 GHZ in processor and 1 MP addition in front camera for video calls
Note: Tab 2: 1GHZ processor, 0.3 MP front camera, 3MP rear camera, SIM slot.
Tab 3: 1.2GHZ, 1.3MP front camera, 3MP rear camera, Micro-SIM slot.

Smart Namo: An Android smartphone for Narendra Modi fans

A business company from Gujarat is planning to launch this smartphone  Smart NaMo.

This phone will be launched in four variants.

  • 1 GB RAM + 16 GB ROM
  • 2 GB RAM + 16 GB ROM
  • 2 GB RAM + 32 GB ROM
  • 2 GB RAM + 64 GB ROM

with these specifications.

  • 1.5 Ghz MT6589 Turbo Chipset
  • 13 MP Camera
  • Corning Glass 2
  • Screen 5 inches IPS touchscreen
  • Dual sim
  • 2500mAh battery
  • Android 4.2.1

For more information visit  http://www.smartnamo.com/