SDRT

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Version vom 9. März 2013, 17:26 Uhr von Siro (Diskussion | Beiträge) (software defined radio transmitter)
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SDRT

Release status: experimental [box doku]

Description use the VGA port to transmit I/Q signals on any frequency
Author(s)  siro (siro)
Last Version  0.1 ()
License  GPL




Software Defined Radio Transmitter

Description

Hardware to transmit anything on any frequency. That means any information / modulation can be transmited on a channel between 750 and 1150 Mhz, which is the possible internal PLL frequency-range for ADRF6701. The I/Q signals are feed through a VGA-compatible 15pole-DSUB connector.
This board is intended to be used with VGAtoBaseband.
This is a prototype with a teensy controlling the ADRF6701. The frequency can be adjusted using a USB terminal connection. The board has a 50Ohms SMA connector transmitting about 0dBm using VGA signals (0.7Vpp).

Layout

todo


teensy software

todo


TODOs

  • use ADRF6755
  • shrink board size
  • don't use eeprom 24C02
  • don't use teensy, maybe Attiny
  • don't use sot-123 diodes
  • rf power amplifier
  • use a display to show the current freq.
  • rotary switch

Links