800 mhz antenna calculator software

This calculator is designed to give the vertical length height of a particular antenna, for the frequency and wavelength chosen. Hf dipole antenna this antenna software will help you design a simple wire dipole antennas for 1 30 mhz. Sep 23, 2017 antenna design yagiuda calculator nipun haritash. Pasternacks free space path loss calculator calculates the loss in db between two antennas where the gain, distance and frequency are known. This calculator is designed to give the vertical length height of a particular whip type antenna, or the frequency of it.

This was the first antenna i built using the antenna to. Pctel maxrad bmuf8045 high gain 5db gain 800mhz 806866 mhz mobile antenna. Antenna design calculators category is a curation of 83 web resources on, parallel square conductor transmission line calculator, analysis of antenna mast strength and bending stress, full wave loop antenna calculator. Putting a preamplifier at the antenna can help if you use appropriate filtering. Capacitance calculator capacitor design to use the calculator.

If youre mainly listening to trunking systems at 800 mhz, then this is the antenna for you. Mount the antenna on the pole or support, tighten all the screws. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. The graph above shows the return loss at operating frequency 400800 mhz is worth from 5 db to 30 db. This calculator will help you to calculate the different wavelength of. The helix antenna is a travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. In addition, the input impedance is primarly real and can be approximated in ohms by. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength.

Jul 14, 2014 800, 900, 1800, 2100, 2600 mhz and maybe 2800mhz is good to have too. The ultimate reference for amateur radio antennas, transmission lines and propagation. The groundplane area must be considered when designing an antenna. The yagiuda antennaoften just called a yagiis a popular antenna due to its gain, directionality, and relatively lightweight design see the figure to the right. The discone design incorporates a metal ground plane disc atop a. If youre an amateur radio hobbyist who monitors the 800 mhz police, fire and public safety bands, a homemade wideband scanner antenna may improve your reception. So if you design antenna for 100mhz it will work well allthe way to 800mhz. Antenna calculator and design software electroschematics. Free space path loss fspl calculations are often used to help predict rf signal strength in an antenna system. I need help in calculating the antenna length based on the frequency and need advice on the most effective. Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas. Y10uflte classic design yagi antenna with new unique 4glte signal.

Application 2001500mhz with band notch of 800mhz mhz. Hentenna projets category is a curation of 8 web resources on, hentenna, forktenna, dk7zb hentenna. The 51 boom is the main part of the antenna and includes 28. The correct lengths for the various models will be displayed in the chart. The 51 boom is the main part of the antenna and includes 28 elements constructed aluminum. Online calculator dimensions of a discone antenna changpuak. Click on calculate and the opposite value will be displayed in feet and inches or. To be combined with a yagi uda antenna or used as is. Loss increases with distance, so understanding the fspl is an essential parameter for. A directional antenna or beam antenna is an antenna, which radiates greater power in one, or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources.

K7mems online yagi design tool design your own 3g yagi using this simple online tool. All measurements based on very careful analysis with computer software which results many times has been proven to be quite accurate and reliable in. The helix antenna functions well for pitch angles between 12 and 14 degrees. But the middle value return loss of the antenna at frequency 600 mhz is 28. Connected to the cable, make sure the contact well and good waterproof. To use the calculator, enter the desired operating frequency in megahertz to get a starting length in both feet and meters for building a quarterwave vertical antenna.

Zero time position was measured in air, calculating the propagation time for the. Since it mentions being usable around 7 mhz weather fax, i dont know if the swr is low at 145. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. Design of log periodic dipole array lpda with crossshape. For 2 meters, the coil is 4 turns of coax at 5 inches in diameter. Mostly getting the antenna up high is the best return. Rooftop singleband antenna for police scanner radios. How to calculate antenna length for specific frequency, to. At 100 mhz, in the fm broadcast band, it is nearly 30 inches 75 cm. Cst2102 antenna design software uses a wire antenna of a constant.

The solution is to design the antenna for a working frequency which is proportionally higher than required in. In this menu, you need to submit values of multiple. Mmanagal free antenna design and modelling software. For know the length of the elements, choice your frequency of work. This does not take into consideration the type or size of horizontal reflectors, of even if there is a need for them. Using this software, you can design and build your own yagi antenna. This calculator is designed to give the horizontal length of a particular dipole including tees antenna, or one side of it, for the frequency chosen. The radiation pattern of a t antenna is that of a simple vertical of the same height, i. If the centre tap of the t is moved offcentre by approximately 10 percent of overall top length the antenna becomes a windom when top length is 12wavelength.

Whether youre monitoring in this band trunked or conventional channels, analog or digital, this antenna is a fantastic choice. Enter one only one value, the desired frequency or the antenna length in any length field. The discone design incorporates a metal ground plane disc atop a cone. Spectrumforce 700800 mhz 2db gain portable scanner antenna. Enter the desired frequency and select the desired calculation from the drop box. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun.

The package does not include the pole or support, you need buy from us or prepare by yourself, if you need it, please contact with us. I recently purchased a radioshack pro 106 and was not happy with the receive on it. While it does not work as well on lower frequencies if you need extra range on a 700 800 900 mhz. International orders for 4 way sma power divider from 800 mhz to 2. Using amsatuk vhf crossed dipole for ao73 telemetry. If this antenna is not aimed correctly it will lose its effectiveness. Bandwidth the simulation result showed that the value of the bandwidth at frequency 400 800 mhz is 119 mhz.

Check the products below to compare, download or create a product list and download a pdf of the products selected. Operates in licensed frequency bands between 6174mhz, 400470mhz, 757788mhz, 806960mhz. Keep in mind that the 800 mhz band is tightly packed in some areas of the country and trying to receive two countys over you can encounter adjacent and co channel interference. Works either in standard and metric units, and let you choose on material, and loop shape, as circular, square or octagon. Choose the units of measurement, english or metric. Jul 11, 2014 introduction this is basic instructions for handmade pcs 1900 mhz 14dbi double biquad 3g external antenna. Its a light magnetic loop antenna calculator that run on ms windows, and allow to calculate capacitor values and voltage based on loop circumference, conductor diameter, desired resonant frequency and the operating power.

Double biquad sector antenna for pcs 1900 mhz 3g hsupa. Gefallt mir antwort als spam markieren 3 j moacir guimaraes. This is a very good antenna for scanning 800 mhz trunking frequencies. This antenna is designed for use on stationary objects such as buildings. The calculator indicates the minimummaximum circumference length. This slim, handsome 7 34 inch long rubberduck antenna provides a great reception boost on 700 and 800 mhz channels over stock antennas.

This formula takes into consideration the capacitive endeffect from insulators which shortens the physical length requirement for the equivalent electrical length. I recommend the antenna, however, dont buy the desktop stand. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. Band frequency 470 800 mhz center frequency 635 mhz. This calculator can be used to design a quarter wave ground plane antenna, with radials. A circular loop is ideal, but squares, triangles, and other shapes can work well. The yagi antenna provides an advantage in weak signal areas or for repeater systems. Radioshack scanner antenna has gone up in price but is still a pretty good bargain. Building an 868915 mhz colinear antenna for lora ttn gateway. Coax center conductor attaches to the long section feed point.

The basic formula for determining the length of a center fed, halfwave wire dipole or inverted vee antenna is 468. Introduction this is basic instructions for handmade pcs 1900 mhz 14dbi double biquad 3g external antenna. I cant remember the actual frequencies but the band width was 50 to 60 mhz at 800 mhz so tuning didnt accomplish much. On most of the j pole designs out there, a choke should be used as close to the feedpoint of the antenna as possible to help prevent rf on the feedline and creating difficulty with swr readings. I used computer software 4nec2 antenna modeler and optimizer version 5. Calculate the frequency length of antennas please enter one value only and calculate the result. This calculator will help you to calculate the different wavelength of antennas based on the frequency. Available in the sma connection only for uniden 396 and 346t and xt models. Motorola gtr8000 700800 mhz repeater 100 watts mhz p25. There are usually four radials, three being a minimum, but you could use up to six. The design and software simulation tools used in this work are presented.

Remtronix 800 mhz portable bnc antenna scanner master. At this frequency, this antenna is getting very practical and easy to build. Etslindgrens model 3115 doubleridged guide horn antenna has been an industry standard for many years. Etslindgrens model 3115 doubleridged guide horn antenna has excellent gain and vswr characteristics, it is small and portable with a length of 24. For exemple in fm broadcasting band choice 100 mhz its easy for calculate. I dont have an antenna analyzer to sweep through 7 to 146 or 148 mhz to see. Lets see some antenna calculator and antenna design software that will help you. Works either in standard and metric units, and let you choose on material, and loopread more.

Zte wf721 external yagi antenna 18db 800mhz 850mhz. Indoor 700800 mhz yagi directional antenna with desktop. At 1 mhz, in the am broadcast band, one quarter of the wavelength is about 246 feet, or 75 meters. Antenna modeling software mininec, winnec, and eznec for windows. Yagi calculator is a free antenna design and analysis software for windows. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr to design the antenna, you need to go to task design yagi menu. Design your own tuning capacitor for use with this antenna with the. Looking to improve 700800 mhz reception radioreference. All you need to do is enter the desired resonant center frequency in the form below, then click calculate.

This is the software perite used to design the perite 850 and 900 yagis here is a guide by the mnana master, audionut, to help you get more out of mmana design and tweaking. Length and frequency variations will change antenna efficiency shown under results. Unlike the compact internal antenna on a usb modem or cell phone, a yagis driven element is large enough to be fully sensitive to the frequencies of interest. Click on calculate and the opposite value will be displayed in feet and inches or frequency in megahertz mhz. The distance between one point to another adjacent point in a wave is known as the wavelength. Homepatrol scanner upgrade 800mhz sma antenna 5db gain multi. My recommendation is just dont buy the stand, it was wobbly, screwed on loose, and did not stand properly. Dipole antenna calculator west mountain radio home. A site masters sa2500ex would be necessary, or use 2nec4. Wire antenna calculator amateur radio station ws6x. The following program will calculate the lengths needed to construct several popular wire antennas. If you have no particular preference within a given ham radio band, then simply enter its center frequency i.