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ILER - VFO/DDS / KIT

Written By EA3GCY


VFO DDS ILER QRP KIT HAM RADIO TRANSCEIVER SSB CW EA3GCY VXO TRX QRZ QSL


Universal VFO/DDS 0 to 40 MHz
To use along with the VFO/DDS for ILER family


ILER VFO-DDS SPECIFICATIONS

  • Universal VFO for all ILER transceivers and similar projects.
  • RF Generator: from 0 to 40MHz.
  • Configurable Tuning Steps: selected ones or all steps (from 10Hz to 10MHz).
  • Programmable IF Offset from 0 to 40MHZ.  IF=RF+VFO, IF=VFO-RF, IF= RF-VFO, IF=0 (RF generator)
  • Programmable  upper and lower band limit.
  • Fine calibration of the frequency reference by software (up to 1Hz accuracy).
  • Voltmeter display with 0.1V resolution (0.01V calibration)..
  • Possibility of auxiliary analog inputs (for future expansion).
  • Auxiliary I/O pins for expansioin..
  • SINUSOIDAL OUTPUT (NO SQUARE WAVE).
  • LOW SPURIOUS. TX and RX mixers spectrum is equal to or better than a VXO one..
  • DDS AD9850BRS integrated circuit.
  • Reference clock: 125MHz 
  • Output signal 300-500mVpp @200ohms.
  • User programmable "Welcom message": callsign or name.
  • LOCK function for push button and encoder.
  • Automatic record of last used frequency or current frequency.
  • 2 Line x 8 character LCD with  AUTO-ON-OFF configurable backlight..
  • Power supply: 9-14V about 120mA.
  • Outboard encoder for a more versatile mechanical configuration.
  • Small size "sandwich" module, easy to fix with srews or glue..
  • Total spaced used: 51 x 36 x 40 mm W-L-H (with soldered LCD 35 mm L). LCD window size 29 x 19 mm.
  • Soft touch non stop rotary encoder (like commercial equipment).
  • 24 steps per revolution encoder (maximun speed 36 steps/s).
  • Simple, direct, and immediate configuration through menus.
  • All settings are stored in EEPROM (1 million write/read cycles (minimum) and 100-year).
  • PIC18F2525-I/SP microcontroller 20MHz clock..
  • Connections for firmware update (ICSP). 
  • Complete kit for an easy construction: all parts, encoder and 3 PCB included (SMD already soldered).

ILER-DDS VFO/DDS for ILERs and EGV (universal VFO 0-40MHz) 42,00€ IN STOCK  (VAT-IVA not included)



Descargar: manual en español           Download: english manual



11MHz. scope

11MHz. and 2º armonic >-55dBc

11MHz signal. Nearby signals >-75dBc, excellent !