Many MW DXers have one or more JAGUAR setups "always on", monitoring the MW dial 24x7. JAGUAR is designed for continuous operation and, for example, the YASLOG system can collect data about MW conditions all the time. However, because every environment is vulnerable and uninterrupted operation is rare as there can be power cuts, Windows updates, hardware problem, JAGUAR crashes, JAGUAR uses an extra guardian angel called LIFESAVER to get JAGUAR back on feet when issues occur.
The tiny program called LIFESAVER.exe is included in JAGUAR’s full-installation package. Do not start this program manually, just keep it in your JAGUAR folder if you want a 24x7 operation. LIFESAVER can recover your setup from Perseus power breaks, hardware and I/O exceptions, program crashes and hang- ups even if they happen during recording. Therefore, no UPS is needed if you just run JAGUAR on a laptop. Create a shortcut to LIFESAVER.exe and move it to the Windows start-up folder if you want a secured 24x7 operation, including an automatic JAGUAR start-up after a Windows reboot. Important: it must be a SHORTCUT to LIFESAVER.exe, not the program itself!
LIFESAVER.exe and/or JAGUAR.exe write a row to an event log when any issues are detected. You will find the log in the JAGUAR folder (as LIFESAVER.LOG). There is a special case where Jaguar can not continue processing without automated restart: for some reason, the bit stream from the Perseus hardware to the file buffer may interrupt for a while and the system hangs until restarted. You can simulate this case with JAGUAR.exe and PERSEUS.exe by unplugging the USB connection cable for a short while and then plugging it back and see what happens. In this case, LIFESAVER will wake up the Perseus connection in Jaguar as soon as possible.
Ensure that you have placed the shortcut to LIFESAVER.exe also to the Windows start-up folder in order to get Jaguar up and running after Windows OS updates.