Suggest that you download the vk3um eme calculator and plug in some numbers. Ka7v amateur radio determining eme station capabilities. Vk3um eme calculator emecalc this software, with the addition of a simple level indicator and preferably an inline switched attenuator, will provide a most accurate way of assessing your equipments performance. The vk3um eme performance calculator is an excellent and comprehensive tool for evaluating your system. The new wsjtx added additional features like dopplercompensation and new modes like qra64 used manly on 6 and 3cm eme. The vk3um emr calculator on the wia website see files for download below can be used for determining exposure levels, your station compliance and the compliance level. Sono stati effettuati collegamenti praticamente su tutte le frequenze.
These will allow you to model your system, see what effect changes such as the 5eme relay will have on performance, plus estimate how your system should be performing to know how many more db you can achieve. A proposal in compliance with numbers used in vk3um s eme calculator. This is the ve4maw2imu round feed with polarising screws and choke ring. If your answer is yes then, believe it or not, you are capable of making a qso with ea6vq and other stations using the moon as a reflector. Based on vk3um eme tool for 24 db gain system wd5ago 5. Mooncalc moon phase, lunar eclipse, moon position, lunar. Vhfuhf weak signal operating aids and resources for north america links updated 29 may 2017. Life demo during eme 2014 conference receiving dl0shf high power.
Then you can apply vk3um eme calculator to get final data. The vk3um radiation and system performance calculator. We wish to warn you that since emeplanner files are downloaded from an external source, fdm lib bears no responsibility for the safety of such downloads. Sources for 432 mhz and above eme information and links.
Areas of change, new and improved mesh loss routines. Oct 28, 2019 downloads for the projects on the vk5dj website. With colourful charts and instant results, our emi calculator is easy to use, intuitive to understand and is quick to perform. The 60% value was derived from the virginia calculator and stormwater manual. Do you have a directional antenna, a 2m ssb transceiver with 50 w output and a pc. The 144 mhz eme newsletter by df2zc issue 22016, page 3 of 6 during the development process rune added a lot special features such as common moon and eme month display, also triggered by some other eme hams acting as testers of preliminary versions. Useful eme software category is a curation of 11 web resources on, moonsked, eme system, linrad. You can enjoy the thrill of moonbounce with a modest setup. In addition to this collection of software you can download, amsatna makes available a selection of. Mission statement to provide links and content for the 432 mhz and above eme community. Other areas of refinement have also been addressed. Agenda not your average appliance operator on eme why and who is on eme, vhfuhf weak signal k1jt station pictures eme contest station technical details of noise and signal processing applicable to hf as well wspr path loss, ktbnoise, averaging and estimation how do you get started nj2rs eme first stations screen shots, and links how to. Ve2zaz january 2012 my objective get you interested in working earthmoon earth qsos. With the vk3um eme planer or other software we can calculate where are the cold sources and the sun are at a given time.
The main category is useful eme software that is about useful eme software. Sm2cews software download page vk3um software download wsjt software wsjt with echo testing feature netclac, an rf impedance calculator. Your input of content, in particular technical, is welcome either in the form of link info but also as written text, pictures, and the like, if possible in. In this article i show how to build up a small but competitive eme antenna and what is important to be successful with a small station. Atmospheric attenuation in microwave 47 ghz eme and vk3um calculator results on millimetre frequencies like 47 ghz we encounter losses in propagation of millimetre waves through atmosphere. Amsat designs, constructs and successfully launches communications satellites into earth orbit. Most hams believe exotic equipment, huge antennas, and very high power are needed to work eme. This software will accurately predict, to a very high degree. For earth based point to point communication the losses are reasonably well known.
Looking at the results from the vk3um calculator i should be able to get 0. We also share information about the use of our site never private information with our social media, advertising and analytics partners who may combine it with other information that you have provided to them or that they have collected from your use of their services. See my article notes on vhfuhf antenna gt, dubus 22012. If you take the vk3um eme calculator and take a 4 yagi group with a gain of 20 dbd and a preamp of 0. Disclaimer the accuracy of this software is in accordance with the calculation methods prescribed in the standard chosen in the software.
Aperture correction factor for both sun and moon now fully implemented. This website uses cookies to personalise content and ads, to provide social media features and to analyse our traffic. Use the link given below and proceed to the developers website in order to download emeplanner free. So below is the screen shot for the emi calculator in excel sheet. You can calculate this using vk3um s eme calculator spreadsheet. However, when your transponder noise floor is 10 db, you must have good rx system with sufficient signal margin to cover a possible link deterioration heavy rain, snow etc. The vk3um site radiation and system performance calculator 1. Electronics 2000 downloads free software including.
This link is listed in our web site directory since saturday jan 11 2014, and till today emecalc eme calculator has been followed for a total of 611 times. I have been entering the eme community with a 4 39el array but as soon as i realized it was only alimited entry point the antenna was upgraded to 8 39 lambda. I monitored and recorded the entire eme window from 8h55 local time down to the zero elevation time in kenya and ran the 24min 15 sec wav file into a display store which integrated the display, together with a peak hold function to catch amplitude peaks. This is a typical example of what you need to know. Atmospheric attenuation in microwave 47 ghz eme and. Similarly, tree trench with underdrain in the calculator receives a credit of 68%, compared to the higher value in the manual.
These are the calculations of the vk3um calculator. The vk3um sk eme calculator is a most useful tool for planning the antenna and power needs for making moonbounce contacts. Simulation with 0,1 db loss before lna and 0,21 db nf lna. This paper describes the design and construction of a modest 432 mhz eme station for. Procedure is to point the antenna first to cold sky aquarius, leo or pictor and read the smeter or better a voltmeter parallel to the smeter. In the calculation for dl0shf i degraded the antenna performance to limit gain to 52 db as stated in the article whats different on 10 ghz eme reason for this is that the antenna from dl0shf is that big that its beam only hits part of the moon. Here you can find information about my station with pictures, but also download software and get ideas for home construction projects. Nov 23, 2008 download eme use this software to perform some experimental modulations of your sound card. If you want to hear these echoes by ear then you need about 1kw and 23 dbi 53 dbw eirp to hear them reliably. The latest version of the calculator can be downloaded below on this. Somewhat depending on sidelobe content and operator skill. First ever single yagi to single yagi eme first ever 6 meter eme small stations can now work eme 10 elements and 100 watts all you need now ive actually done it with 7 elements and 100 watts revolutionized moonbounce for good and brought it to the masses. Hi gentlemen its taken a while but the eme calculator ver 10. Simulation with 0 db loss before preamp, but nf 0,32 db of lna as measured on the noise figure meter including relay and adpators.
Electronic calculator 2 is the must have companion for anyone who works with electronics, whether experienced or novice, working on vintage sets or the most up to date of circuits. Based on vk3um eme tool for 58 db gain system wd5ago 6. The antenna got destroyed in a snow storm after only 8 months of activity. Audience was much bigger than expected, sorry for little time to explain to individuals. The software installer includes 3 files and is usually about 5. All about sm6fhz, ingolf, performance measurements for eme stations.
The above data is automatically downloaded and processed by the vk3um eme and. Wsjtx software k1jt, joes wsjt software made eme possible for average terrestrial stations. Then we point to the sun and now we switch the step attenuator to the. Moonbounce on 1296 vk logger amateur ham radio forum. Dec 26, 2019 ultimate calculator is a simple commandline calculator. Utility programs 2lin2kep 43k converts a file of nasaformat 2line keplerian element sets into amsat verbose format. Dx is my main interest, and cw my preferred operating mode. This computer calculates an estimated one rep maximum based on the number of repetitions performed and the weight used.
W8io antenna site vhfuhf weak signal operating aids. It has also been noted the tss removal for bioretention with an underdrain is 60%, while the manual provided a removal rate of 85%. If you use the vk3um eme calculator and select a 4 yagi group with a gain of 20dbd and a preamp of 0. Wabbitemu, like all emulators, requires a rom image. Jan 14, 2011 the latest vk3um eme calculator update ver 7. However, we must warn you that downloading emeplanner from an external source releases fdm lib from any responsibility. Amsat is a worldwide group of amateur radio operators who share an active interest in building, launching and then communicating with each other through noncommercial amateur radio satellites.
It has been further enhanced to provide twelve additional 432mhz feeds types added thanks to sm6fhz data. The calculator asks you to enter the first number you want to use, the operation that you want to perform, and the second number you want to use. I highly recommend the use of vk3ums eme calculator software, or. Fast and convenient, wabbitemu allows you to always have your trusty calculator with you. Regardless of the transmission mode, successful eme operating requires.
If anyone interested in eme link budgets or link budgets in general hasnt take the opportunity to download vk3um s eme calculator you might want to check it out. This list is compiled and maintained by scott, kd4lt reported good address. Because wabbitemu is an emulator, the calculator it creates will act exactly like the real thing. In 2005 the arrl handbook was still a valid source of information about earthmoonearth communication. About emecalc eme calculator the resource is currently listed in in 2 categories. Based on the vk3um eme calculator budget, antennas in the 10 dbd range should be successful. The on axis exclusion zone value calculated in this software is the exposure limit that applies to the general public for the standard selected. Use the link given below and proceed to the developers website in order to download emecalc free. Download the software noise meter from g8kbb from the following link. If you know or can determine your stations capability they are simple to use.
Doug vk3um was a friend from our days at unley high school during the mid 1950s, a common interest was that of radio and electronics leading to our introduction to ham radio through the 288mhz band now no longer part of australian allocations. Click here to download the previous version of electronics assistant v3. The program is just an executable that your windows will run in a dos window. Enter the following information in the emi calculator. As stations have improved, ssb is now more popular. Aural morse would require at least 2 10 element yagis to receive even the larger stations. This program will tell you how many pokemon you need to ko to get a certain number of evs in a certain stat.
Nov 09, 2018 suggest that you download the vk3um eme calculator and plug in some numbers. The first 1296 cw eme vk3um memorial contest will be remember for its exceptional conditions and high activity levels, which is. Note the sun is ony at 15deg elevation so maybe some ground noise is enhancing the result somewhat cold sky to ground noise is about 5db, but this is such a variable test compated to sun noise depending on what you point the dish at. You can do it with a bit less power using ground gain or ideal conditions, but you will have to be patient and it will be harder. However there are a number of software tools that are free downloads which will compute all of this for you. You can calculate emi for home loan, car loan, personal loan, education loan or any other fully amortizing loan using this calculator. Last measurement with some tweaking of feed position is. With spectravue in continuum mode i tried to measure this moon noise plot scale 0. The thin yellowcolored curve shows the trajectory of the moon.
The effect of lnbs modification on their noise properties. Vk3um eme planner 383k moon tracking program for eme operations. Ham radio of sm6fhz, performance measurements for eme stations. More improvements november 2012 i have now built another feed in replacement to the square septum feed due to its low performance for some unknown reason. Attached is the latest update of the calculator and has the additional notable refinements and additions. The eme program allows a soundcard to drive the microphone input of a transmitter with. Windows 98 users will need to change the path of windows calculator to c. Kratce po nove verzi programu eme planner, doug vk3um aktualizoval take svuj eme calculator na verzi 10. To download the product you want for free, you should use the link provided below and proceed to the developers website, as this is the only legal source to get emeplanner. Mooncalc shows the motion of the moon and moon phase for a particular day at a particular location you can see the moon positions for moon rising, selected time and moonset. Feature radiosport radiosport radiosport radiosport 2016 arrl eme contest results last years contest brought in more logs and more 432 mhz activity.
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