How Long Is A Shortwave Antenna?

What frequency is short wave?

30 MHzShortwave radio is radio transmission using shortwave radio frequencies.

There is no official definition of the band, but the range always includes all of the high frequency band (HF), and generally extends from 3–30 MHz (100 to 10 metres); above the medium frequency band (MF), to the end of the HF band..

Does a long wire antenna have to be straight?

The easiest to put up and simplest to build antenna is the longwire. This is a length of wire that is run from your receiver to a point as far from the radio as possible. … Do not worry about keeping the wire straight across the room. Going around is fine and will not harm reception.

What is one disadvantage of a random wire antenna?

One disadvantage of a directly fed random-wire antenna is that you may experience RF burns when touching metal objects in your station. The simple single wire length of the random-wire antenna acts as both feed line and antenna and is directly connected to the transmitter.

Can wire be used as antenna?

Since most antennas are used outdoors, you must use outdoor-rated wire. You can use uninsulated wire, but it is much better to use insulated wire for safety purposes if there is any chance that someone could come in contact with the wire while you are transmitting.

Does coax length affect SWR?

Many antennas have a SWR of just over a perfect match like a SWR of 1 to 1.2. This is measured at the antenna itself. With a length of coax the SWR will now show a SWR of say 1 to 1.0 , because of the loss in the coax. And so will the bandwidth change a little.

Do antennas go bad?

Can an antenna “go bad?” Well, not exactly… but yes there are things on an antenna that can actually stop working. When that happens, you generally need a new antenna. … You might remember that TV antennas used to come with flat cable, and now they come with round coaxial cable.

Can insulated wire be used for antenna?

Jay, w6cj: For temporary, or hidden, HF wire antennas I prefer thin, insulated wire. It works fine for tuner-fed balanced or endfed antennas and will work on plain-old dipoles with coax feed.

How can I get better reception on my shortwave radio?

Most shortwave portables radios on the market today have a telescopic whip antenna that will suffice for casual listening. But often you can increase the antenna gain by simply adding more length in the form of a simple thin wire. Keep in mind that many radios actually ship with a clip-on antenna wire.

Is shortwave radio still available?

Answer: Absolutely! Regular shortwave radio listeners already know the answer to this question. Sure, the landscape of the shortwaves is changing, but it’s such a vast landscape that, even with a few major players dropping out, there is still so much to hear and appreciate.

Do people still listen to shortwave radio?

Yes, it is. In fact, despite the widespread adoption of both television and the Internet, the majority of people still obtain their news from the radio, especially the BBC’s World Service on shortwave receivers.

How much does a shortwave radio cost?

Shortwave prices range from about $50 for a compact portable to $2,000 or more for one of the large tabletop sets.

How long is a long wire antenna?

You also want the antenna to be at least 1/4 wavelength long for each band you plan to use. For instance, to work 40m be sure the antenna is at least 10m or 33′ long….Wire Lengths for Various Band Combinations.GroupUSA Bandsd80-40-30-20-17-15-12-10e160-80-40-30-20-17-15-12-10f160-80-60-40-30-20-17-15-12-10-63 more rows

Can an antenna be too long?

Member. Depends on your environment. If you have any local transmitters on the AM band, then they can overload the early stages of your radio if your antenna is too long. You will hear the stations even though you’re not tuned to them!

Are there any shortwave stations left?

No wonder most of the analog shortwave transmitters sold today are DRM-capable or ready. In 2019 the BBC is still on shortwave and has large audiences in countries like Nigeria, having recently introduced new shortwave transmissions in additional languages.

What is the best shortwave antenna?

10 Best Shortwave Antennas – April 2020 Results are Based on 2,271 reviews scanned1Tecsun AN-03L Professional SW Band 3.5mm Jack External Compact Shortwave Antenna By TECSUN 9.8 View Product2CC Shortwave Reel Antenna By C. Crane 9.5 View Product3Tram 1410 Broad Band Discone/Scanner Base Antenna By Tram 9.1 View Product7 more rows

How can I boost my antenna signal?

How To Get More Channels with Your Indoor AntennaExperiment with Different Locations in Your Home. … Use a Longer Cable To Reach That Window. … Face it Towards the TV Transmitter Towers. … Lay Your Antenna Flat Horizontally. … Move it Higher Up (Highly Recommended) … Put it in a Skylight (Highly Recommended) … Use a Better Cable (Highly Recommended) … Eliminate Electronic Interference.More items…•