• July 6, 2022

How Far Does A 2 Meter Ham Radio Transmit?

How far does a 2 meter ham radio transmit? On VHF frequencies such as 2-meters, antenna height greatly influences how far one can talk. Typical reliable repeater range is about 25 miles (40 km). Some repeaters in unusually high locations, such as skyscrapers or mountain tops, can be usable as far out as 75 miles (121 km).

How do you make a 2m 70cm antenna?

What is 2m ham radio?

According to Wikipedia, "The 2 meter amateur radio band is a portion of the VHF (very high frequency) Spectrum, comprising of frequencies stretching from 144.000 MHz to 148.000 MHz." These communications are generally FM or frequency modulated transmissions although some operators do operate using SSB (single sideband)

Will a 2 meter antenna work on 70cm?

Some 5/8 2m antennas work great on 6m. But, they generally don't work on 70cm. However, the only real way to know is to try it. If you have access to an antenna analyser, try that.

How do I increase the range of my ham radio?

  • Elevate your antenna. Antennas are a vital solution to achieve clear communication not only within base stations, but in temporary and mobile situations as well.
  • Invest in a rebroadcast system.
  • Increase power.

  • Related guide for How Far Does A 2 Meter Ham Radio Transmit?

    How do you make a 2m antenna?

    How does a Slim Jim antenna work?

    SLIM JIM ANTENNA PROJECT. The Slim Jim is a vertically polarized omnidirectional end-fed antenna having considerable "gain" and this is concentrated almost parallel to ground toward the horizon rather than skyward making it more efficient than a ground plane type antenna by about 50 percent better.

    How do you make a UHF antenna?

    Is 2m UHF or VHF?

    Common dualband transceivers, both mobile and handheld, operate on the 2m and 70cm bands. These radios are so common that we often refer to them as VHF/UHF dualband radios. Accordingly, you will often hear hams refer to the 2m band as simply VHF and the 70 cm band as UHF, as if VHF means 2 meters and UHF means 70 cm.

    Is 2 meter narrow or wide?

    The most common 2m rigs are basic FM mobile or handheld transceivers. These radios usually tune the entire 2m band from 144 MHz to 148 MHz in 5 kHz steps. This means that a typical FM signal is about 16 kHz wide. (You may recall that amateur 2m FM uses ±5 kHz frequency deviation.

    Is 2 meter simplex frequencies?

    Notes: The frequency 146.40 MHz is used in some areas as a repeater input.

    2 Meters (144-148 MHz)

    144.00-144.05 EME (CW)
    146.40-146.58 Simplex
    146.52 National Simplex Calling Frequency
    146.61-146.97 Repeater outputs

    Can I use a 2 meter antenna on 440?

    Actually, I've used a 2 meter 1/4 wave antenna on 440 before and the SWR was pretty darn good. The 2 meter 1/4 wave will about a 3/4 wave(?) on 440 so it should work fine. Do you have a VHF/UHF SWR meter? It's an invaluable tool to have when you're working on your antenna systems.

    What makes an antenna dual band?

    Dual-band antennas are made by combining multiple antenna elements. The individual antenna elements vary in length according to the wavelength of the different frequencies, ensuring a true distinction in their sensitivity to each frequency.

    How far can you talk on 70 cm?

    If you're really "line of sight" (like you can visually see the repeater location), 2m or 70cm will both produce very usable signals at 100 miles using a unity gain antenna and 50W of power output. But as we travel around, we often don't maintain LOS for long; stuff gets in the way.

    How far can you talk on a repeater?

    The communications range for VHF and UHF FM simplex is usually limited to your local area (5-15 miles). If you live high on a mountain and use a high-gain directional antenna, you may be able to extend your range considerably.

    How far can I talk on a ham radio?

    You can realistically get about 2-18 miles of range with a handheld Ham radio unless you have a particularly powerful base station with a large antenna, in which case your range can be hundreds of miles.

    How far can a HAM repeater reach?

    If your signal bounces off of just one repeater, the range can get up to 50 miles. With a strong network of repeaters, a transmission could be daisy-chained to span the country. A repeater can't receive and transmit at the same time on the same frequency, just like normal transceivers.

    How far will a 15 watt FM transmitter broadcast?

    At 15 watts, the range increases to 5 miles, at 40 watts to 10 miles and at 100 watts to 15 miles. The general rule of thumb is it will take four times the power to double the transmission distance. Increase the transmission range of the FM antenna without increasing the power by raising the antenna.

    What frequencies do Preppers use?

    They often work at public events, disasters, and other emergency situations to provide valuable communications services.

  • Channel 3 (26.985 MHz) – Prepper CB Network (AM)
  • Channel 4 (27.005 MHz) – The American Preppers Network (TAPRN)
  • Channel 9 (27.065 MHz) – Universal CB Emergency/REACT channel.

  • How long should a 2m antenna be?

    Most commercially available antennas come in length equivalent from 1/4 to 5/8's of a full wavelength. This means that if you want to run a 2m rig (144'ish Mhz),a half wavelength antenna would be 3.3” long, and 3.3 ft is very manageable for vehiclular operations.

    How long is a 2 meter dipole antenna?

    The top section of the vertical consists of a 3/8-inch rod 19.5 inches long, with the bottom section also consisting of a 3/8-inch rod 19.5 inches long. SWR is fairly flat across the 2-meter band showing 1.5:1 at 144 Mhz and 1.4:1 at 148 Mhz.

    Frequency (mhz) A (inches) B&C/D&E (inches)
    146 mhz 19-5/16 20-3/16

    How long is a 2 meter ham radio antenna?

    Fully extended, the antenna is 42 inches long but it collapses down for storage (Figure 2). The MFJ-1714 costs less than $20 and comes with a BNC connector. There is also a version that has an SMA connector on it (MFJ-1714S), which is what most current amateur radio handhelds use.

    Does a Slim Jim antenna need to be grounded?

    The antenna does not need a ground to work, since it is a half-wave design. For lightning safety, the best thing would probably be to mount a lightning arrestor on a metal plate mounted on a ground rod, and run the coax through the arrestor.

    What is the gain of a Slim Jim antenna?

    Slim Jim antennas have no performance advantage over the conventional J-pole antenna. The approximate gain in the H-plane of the Slim Jim is from 1.5 to 2.6 dBi (-0.6 dBd to 0.5 dBd).

    How do you make a Slim Jim antenna 2 meters?

    How do you make a 70cm dipole antenna?

    What part of antenna is UHF?

    A loop-shaped antenna, whether it's arranged horizontally or vertically, is for UHF. Many antennas include both rabbit ears and loops so they can receive both sets of frequencies.

    How do you make a VHF UHF antenna?

  • Remove 21 or 22 inches of the outer insulation of the coaxial cable and the shield of the wire from one side of the inner coaxial cable.
  • Use a soldering gun to solder a radial cable to the shield of the coaxial cable near the end it is cut at.

  • Is Ham a VHF?

    Very High Frequency (VHF)

    VHF provides a simplex communications system, which allows for line of sight communications between two ham radios. This band is known for being highly reliable and also less susceptible to noise from nearby electrical equipment, making it the band of choice for many ham radio operators.

    Do you call CQ on 2m?

    By my simple logic, a real 'CQ' call only is logical in HF or when you really need to give other stations time to find your frequency. Otherwise, in 2m, you just need to trigger a few local scanners and cram in enough information to give other listeners time to decide of they want to pick up the mic.

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