Born		25 April 1938 in Mainz
Licen		ce since 1958
Mem		ber of DARC in local group K19. QTH: Meisenheim, locator: JN39ur
		Most time QRV on ten meter band, observing 10 meter amateur radio beacons (daily reports to the HF beacons group) and fishnet buoys (monthly report to the german Bandwacht) and storing the results as records using HAM Office.
Look		ing for Aurora conditions, too, logging DL0IGI on 28.205 MHz, antenna direction: 30° (North-East).

Logging the beacons with the program SPECTRUM Laboratory (similar the ARGO) of DL4YHF I create sonagrams and diagrams of the fieldstrength.
Fieldstrenght is indicated below in diagram. By division of fieldstrength (on the right-hand scale) by ten, an approximate S-value is obtained.

Examples:
Sonagrams:
Sonagrams with explanations, on the right border is the frequency scale.
1      2      3      4      5     

I1YRB:
10 meter QRPP beacon from Italy, listed at 20 August 2008 via Sporadic E-Layer. Frequency is 28.322 MHz.
Suddenly at 13:31 UTC the beacon signal appeared, fieldstrength was growing up to 599+30 at 13:34 UTC, and fading out at 13:52 UTC.
Combination of Sonagrams and Diagrams     

ER1TEN:
10 meter Moldavian Beacon, frequency 28.2488 MHz, on 24 July 2009 via ES.
Sonagram      Diagram

Spreadsheet of Beacons heard during a day :
The charts are created every day after storing into HAM Office in the late evening.
Chart     

Only for Beacon Gurus :
There is a beacon spotter website for spots and chats, created by KC4TM (ex KI4KQQ).
Beacon Spots     

My List of Fishnet Buoys :
You will find a list of fishnet buoys sorted by frequency, updated the 7th March 2010.
Buoys List     

Solar X-rays :
Geomagnetic Field:

From n3kl.org

VHF Aurora :
144 MHz Es in EU :
144 MHz Es in NA :

From The DXrobot