How long is a half wave 2m antenna?
This deign is incredibly resistant to the anticipated rigors of the end user abuses, while providing an efficient and stable radiating device suitable for today’s receivers and transmitters below 25 watts. Telescope length 8″ Down and 36″ up.
How long should my antenna be?
The wavelength of a signal should always be 1/4 the length of the antenna you’re using, as this gives you the very best efficiency. While you don’t have to pick an antenna whose length is exactly 4 times the wavelength of the signal, it’s a good idea to get as close as you possible can.
What is the formula for 1/2 wave antenna?
The basic formula for determining the wire length of a center fed, 1/2 wave wire dipole or inverted Vee antenna (30 mhz or less) is 468/freq-in-Mhz for feet and inches or 143/freq-in-Mhz for meters .
How long is a half-wavelength?
One wavelength at 600 MHz is = c / f = 0.5 meters. Hence, the half-wavelength dipole antenna’s length is 0.25 meters (or 9.85 inches if you don’t like the metric system).
Can an antenna be any length?
In general yes, it can be any “reasonable” length (e.g. not infinite). The principle of antenna is based on Electrical resonance , the efficiency depends (beside other factors) on the Electrical length of the antenna and the frequency of the signal (and tons of other factors) – See Resonance .
Does antenna length matter for reception?
So the answer is yes, size does matter, but bigger isn’t always better. It all depends on what your transmitting and receiving frequencies are. Theoretically, a longer antenna will have a greater range, but it is far more important for optimal radio performance that the length of the antenna matches the frequency.
What are the different sizes of antennas?
Antenna, Dual-Band, Mobile, Magnet Mount, Combo, 2m, 70cm, 13 ft. RG-58 w/ SMA Male, 19.5 in. Height, Each Antenna, Mobile Vertical, 2m, 70cm, Fold-over, Chrome, 62 in. Height, UHF Mount Base, Each Antenna, Mobile, 5/8 Wave 2 Meter, 1/4 Wave 6 Meter, 300 W PEP, 49 in. High, NMO Mount, 12 ft. Coax, Each
How much power does a mobile antenna use?
Our selection of antennas handles from 10 watts to 350 watts of power and covers a wide range of frequencies. We offer VHF mobile and UHF mobile antennas of all sizes and gain figures.
What kind of antenna do you need for a mobile scanner?
Quad Band FM Mobile Antenna System. Mobile Discone Scanner Antenna. Mobile antenna system. 40m Loading Coil for HV7A & MV3A. 20m Loading Coil for HV7A & MV3A. 17m Loading Coil for HV7A & MV3A. 15m Loading Coil for HV7A & MV3A. Diamond ® Antennas are sold through authorized dealers.
Where can I buy a VHF/UHF mobile vertical antenna?
Find your VHF/UHF mobile vertical antenna at DX Engineering today. Shop dual-band, monoband, and tri-band VHF/UHF vertical antennas at DX Engineering. We offer the top names in Ham Radio antennas, including Comet Antennas, Diamond Antenna, Larsen Antennas, MFJ, and Hustler Antenna.