New QRSS/WSPR ham radio kit

Hans Summers G0UPL has introduced a new standalone QRSS/WSPR amateur radio HF kit, the Ultimate 2

It is a new improved version of the "Ultimate" kit announced last June. The new features are

  1. Pre-assembled DDS module (no SMD soldering!) to provide output on any HF frequency
  2. Plug-in Low-Pass Filters (LPF), which is also available as a separate kit for all 9 HF bands.

The kit supports WSPR, QRSS, DFCW, FSK/CW, CW, Hell (full speed and half-speed), Slow Hell, and customisable FSK patterns.

The WSPR encoding is on-chip. It supports the connection of a GPS module for frequency locking, accurate time, and location (for WSPR). Power output is measured at around 150-200mW on the 30m version (more power on lower frequencies, less power on higher). It does not require a PC, it has an LCD and two buttons to control it.

The price is GBP 17.50 (EUR 20 or US $27 approximately) plus shipping, which includes DDS module, LCD, main board + components, and one LPF kit.

The kit supports the following modes:

  • QRSS mode (plain on/off keyed slow CW)
  • FSK/CW mode (frequency shift keyed slow CW)
  • DFCW mode (dual frequency CW, dit's and dah's on different frequencies)
  • WSPR mode (Weak Signal Propagation Reporter)
  • Slow-Hellschreiber (frequency shifted slow Hellschreiber)
  • Hellshreiber (full-speed standard Hellschreiber, and half-speed Hellshreiber)
  • CW (plain CW)
  • Customisable FSK patterns

Other features:

  • Pre-assembled DDS module for output up to over 40MHz
  • Plug-in 7-element Low Pass Filter boards for all 9 HF bands available
  • 24-character LCD + two-button user interface
  • User-programmable (callsign, message, speed, FSK, mode, etc.), settings stored in EEPROM
  • GPS interface, for locking the frequency in slow-speed modes
  • On-chip generation of WSPR encoded message (no PC required)
  • WSPR maidenhead locator can be generated from GPS-derived latitude/longitude
  • Selectable “frame” size, for stacked QRSS reception
  • Plain CW callsign identifier at selectable interval
  • Produces approx 150mW RF output, or AF output for driving an SSB transceiver
  • Higher output power by additional PA transistors and/or higher PA supply voltage

More information -