var fDesc=new Array(); fDesc[0] = "Automatic NCDXF beacon monitor for Radio Amateurs,
SWL'ers and HF communication engineers

Features:

- continuously monitors 18 NCDXF beacons on five bands;
automatically detects the presence of the beacon signals, even in QRM and noise;
- measures the signal-to-noise ratio, the QSB index, and the propagation delay of the signal;
- automatically identifies long path openings based on the signal delay;

System Requirements:

- Operating system: Windows ME, Windows 2000, Windows XP or Windows 7;
- CPU speed: 1 GHz or higher is recommended;
- Ports: one COM port for radio control (optional);
- Connection to the Internet: direct (no proxies), 1 MBit/s or faster is recommended. Satellite connections cannot be used because of the propagation delay;
- Receiver: any CW or SSB receiver that covers at least one of the beacon bands (14, 18, 21, 24, 28 MHz), preferably a model that is supported by the OmniRig engine;
- Antenna: an omni-directional antenna is recommended;
- Sound card: the on-board one is OK;
- Cables: two cables are required for connecting the radio to the PC, a standard stereo cable for the audio signal and a CAT cable/adapter for radio control."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }