SW Questions?

[Se7en]

n00b question<gotproof>

Is this even Accurate?

Since when or was 10m the CB band?... unless in SWL the bands are numbered different...

Also this:

In general, the bands with frequencies
below 13000 KHz are better at night and the
bands with frequencies above 13000 KHz are
best during the day. This guideline is not ‘cast
in concrete’ but is a useful general rule of
thumb.

I seem to have optimum listening power during the day below 13mhz and at night above 13mhz....?

 

[Beetle]

Look in the frequency columns.

Do the math: 300,000,000 divided by the frequency in Hertz (or 300 divided by the frequency in Megahertz) gives you the wavelength in meters. "Ten Meters", as in the amateur radio band, doesn't get really close to that wavelength until you're at the very high end at 29.7 MHz, where it's 10.1 meters.

Mathematically, "ten meters" would be 300/10, or 30 MHz. However, the regulations define the frequency spectrum specifically, and that's what we go by. The corresponding wavelength doesn't always correspond.

 

[Wire Weasel]

Also, these are numerical designations for the "Shortwave Broadcast Bands" International broadcasters etc.... they kind of have their own designator "language" that they speak not unlike CBer's have the things they say and hams have their own terms.... even when referring to essentially the same thing.

So you copied a SWB list....so you get SWB language and numerical usages.

 

[Se7en]

Thanks for the info, Beetle & Wire Weasel

 

[Mudfoot]

http://www.youtube.com/watch?v=pele5vptVgc&feature=youtube_gdata_player

 

[Se7en]

Knowing is half the Battle - YouTube

That cartoon is AWESOME!

 

[MR.DX]

A REAL AMERICAN HERO! :tongue:

 

[mechanic]

The difference between night and day reception has to do with the Sun and it's energy.... The "D" layer form in daytime and absorbs frequencies of 10 megs or less.... at night these will propagate almost like CB skip! Depending on band conditions, storms, Solar activity, rain, dry air, how much beer you have had! and if everyone is listening, nothing is to be heard! op:

73 mechanic