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Starsandstripes
Now i feel double dumb... for posting something that is not a big deal..
Bedlam
Starsandstripes
reply to post by Bedlam
Wow cool.. I think i am going to buy one like the guy in the video had..
I would love to listen to radio from all over the world...edit on 10-3-2014 by Starsandstripes because: (no reason given)
It's a hobby that will leave you broke if you really get into it. Enjoy!
Bedlam
Starsandstripes
Now i feel double dumb... for posting something that is not a big deal..
How else will you learn? SWL is a big fun world. You might find yourself even building your own equipment. That's part of what perverted my life so badly.
Starsandstripes
Now i feel double dumb... for posting something that is not a big deal..
jude11
Starsandstripes
Now i feel double dumb... for posting something that is not a big deal..
My rule...
It's never dumb if posted with honest intentions.
Just because some of us are aware of the topic...so what? You brought an issue to the forefront that many are not aware of.
Peace
txinfidel
reply to post by Starsandstripes
Well like you it probably raised a red flag or concern.
But to me I think he had an interesting radio.
It looked small..
txinfidel
reply to post by Starsandstripes
I thought it was showing 120.14. This is where my ignorance shows, but do a google on ham radio band widths and know the legal differences between am, fm, cb, family radio and other frequencies is you are curious.
FM bands generally go higher than 108 but are not available on standard radios.
Bedlam
txinfidel
reply to post by Starsandstripes
I thought it was showing 120.14. This is where my ignorance shows, but do a google on ham radio band widths and know the legal differences between am, fm, cb, family radio and other frequencies is you are curious.
FM bands generally go higher than 108 but are not available on standard radios.
12015 kHz is Voice is Korea out of Kujang with 200kW of output. So he's tuning in bone stock VOK, no repeater needed.
Propagation characteristics
Shortwave radio frequency energy is capable of reaching any location on the Earth as it is influenced by ionospheric reflection back to the earth by the ionosphere, (a phenomenon known as "skywave propagation"). A typical phenomenon of shortwave propagation is the occurrence of a skip zone (see first figure on that page) where reception fails. With a fixed working frequency, large changes in ionospheric conditions may create skip zones at night.
As a result of the multi-layer structure of the ionosphere, propagation often simultaneously occurs on different paths, scattered by the E or F region and with different numbers of hops, a phenomenon that may be disturbed for certain techniques. Particularly for lower frequencies of the shortwave band, absorption of radio frequency energy in the lowest ionospheric layer, the D layer, may impose a serious limit. This is due to collisions of electrons with neutral molecules, absorbing some of a radio frequency's energy and converting it to heat.[15] Predictions of skywave propagation depend on:
The distance from the transmitter to the target receiver.
Time of day. During the day, frequencies higher than approximately 12 MHz can travel longer distances than lower ones. At night, this property is reversed.
With lower frequencies the dependence on the time of the day is mainly due to the lowest ionospheric layer, the D Layer, forming only during the day when photons from the sun break up atoms into ions and free electrons.
Season. During the winter months of the Northern or Southern hemispheres, the AM/MW broadcast band tends to be more favorable because of longer hours of darkness.
Solar flares produce a large increase in D region ionization so high, sometimes for periods of several minutes, all skywave propagation is nonexistent.