In recent years progress has been very slow so I don't see my WAS being finished any time soon. Perhaps there is some resource on the web that could assist me with arrangements for the remaining states, or even some readers in these states who would help me?
20 May, 2012
Will I ever complete "Worked All States"?
Here's my map of confirmed US states as it has slowly been filling over the last 10 years. 41 states have been confirmed on CW on Logbook of the World, while 9 are still missing.
09 May, 2012
Unusual HF Propagation Phenomena
Earthrise from Apollo 8 (NASA) |
The posts are:
- Magnetospherically ducted echo
- Three paths from Japan to Norway along the grayline
- Propagation via aurora reflection
- Polar flutter
- Moonbounced echoes on 6792.5 and 7407.5 kHz
05 May, 2012
Passive Crossfeed for iPhone
Some records just have too much stereo separation. This makes them kind of artificial to listen to with earplugs or headphones as the sound in the two ears is too different. This is where a crossfeed circuit has a role to play as it is designed to mimic the blending of the two channels that takes place when listening through loudspeakers.
As the head is smaller relative to the wavelength at lower frequencies than at higher, the shadowing is also smaller. Therefore there should be more blending of right and left below 1 kHz than at higher frequencies.
As the head is smaller relative to the wavelength at lower frequencies than at higher, the shadowing is also smaller. Therefore there should be more blending of right and left below 1 kHz than at higher frequencies.
01 May, 2012
Reliable auto-detect for keyer for Elecraft K2
The Elecraft K2 has an autodetect feature for the keyer input. When enabled, and when the DASH and the DOT lines are keyed at exactly the same instant in time, the K2 will detect that this is a hand key or an external keyer. I and several other K2 owners have however experienced erratic action of the autodetect with seemingly random keying.
My problem only occurred when keying was done from an external keyer. This could happen when keying from e.g. the WinKeyer.
My problem only occurred when keying was done from an external keyer. This could happen when keying from e.g. the WinKeyer.
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