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Whichever antenna you choose to use, remember that the attenuation of the signals at 50 MHz of coaxial cable RG8-U is 11.5 times greater (9-11 times for the RG-8X) than the attenuation at 50 MHz of a "ladder line" transmission line (400-450 ohms)! * National simplex frequency. It was interesting, as is often the case on six meters, that most of the stations were near Buenos Aires with almost a pipeline into the Dallas area. This band plan has been proposed by the ARRL VHF-UHF Advisory Committee. In the United Kingdom, it is legal to use the 6meter band between frequencies 50 and 52MHz, with some limitations at some frequencies. Another thing to watch for is finding a reasonably clear space for your transmit signal and selecting Hold TX Freq as above. Heres the run down on my experience. Many ham bands are found in the frequency range that goes from above the AM radio band (1.6 MHz) to just above the citizens band (27 MHz). Here is where you will find the 50 MHz frequency band plans for each region of the globe.Region 1 (Europe) https://www.iaru-r1.org/wp-content/uploads/2020/03/VHF-Bandplan.pdfRegion 2 (the Americas)https://www.iaru.org/wp-content/uploads/2020/01/R2-Band-Plan-2016.pdfRegion 3 (Asia and Oceania)https://www.iaru.org/wp-content/uploads/2020/01/R3-004-IARU-Region-3-Bandplan-rev.2.pdfFull details on the use of the radio spectrum by radio amateurs around the world can be obtained from the International Amateur Radio Union (IARU) website.I hope this very brief summary of the factors that can enhance the propagation of 50 MHz and other VHF frequencies has helped.Armed with the information above, I'm confident that you will be able to successfully contribute to the 6 meter ham band activity.73 from VE2DPE. The organization is very helpful in keeping you up to date on whats happening on six meters. This is due, in large part, to the larger size of 6meter antennas, power limitations in some countries outside the United States, and the 6meter band's greater susceptibility to local electrical interference. Plus, its easier to fit into the yard. 6 Meters (50 MHz) 50.0 50.1 54.0 E,A,G,T MHz 10 Meters (28 MHz) 28.000 28.000 28.300 28.500 29.700 MHz E,A,G N,T . There, compressed into about 4 kHz, are most of the stations on the air. It's extensively configurable. For example, as a SiteSell inc. affiliate, I earn from qualifying purchases. These are great tools for HF and knowing what the conditions are if you plan on trying to make contacts on a particular . The term refers to the average signal wavelength of 6 meters. The illustration below is also from her dissertation. But it has allowed me to make a few QSOs that wouldnt have happened otherwise. your Facebook account, or anywhere that someone would find this page valuable. Just think about the magic band in those areas! Frustrated by dead links? The prevalence of HF characteristics on this VHF band has inspired amateur operators to dub it the "magic band". You can find his six meter post at https://g7vjr.org/2021/03/ft8-and-the-6m-band/. In the UK, it is valid for hams to work on 50-52MHz, and they always work on the 50-51MHz. FT8 Software WSJT-X K1JT For example, in July 2017 I was at the National Scout Jamboree and July 2019 at the World Scout Jamboree. My longest distance six meter QSO to ZL1RS is also thought to have happened as a result of TEP coupled with Sporadic E on both sides of the contact. Other dedicated six meter solid state amplifiers are hard to find other than in the used market. The go-to propagation mode is Sporadic E (Es), which is reflection from the E layer of the ionosphere. Heres the critical information that can make all the difference in even hearing stations let alone working them. There are three windows at the top. Jon Jones, NJK, editor of QSTs World Above 50 MHz column, provided these additional comments about his experience with six meter antennas. You can help by, This page was last edited on 11 March 2023, at 02:28. These allocations may only apply to a group of countries. There are pros and cons of course. Perhaps the biggest award of all is the ARRLs Fred Fish Memorial Award or FFMA. Broadcasting was allocated from 41 to 68MHz in ITU Region 1, but allowed exclusive amateur use of the 6-meter band (5054MHz) in a portion of southern Africa.[9]. you make a purchase via a link on this site, I may receive a small So I started working stations on FT8 and to my surprise they answered. A detailed bandplan can be obtained from the Radio Society of Great Britain (RSGB) website. Ive used the Elecraft K3 and the Icom IC-9100 as well as the Icom IC-7300. Youll find lots of information including helpful YouTube videos. There are also a number of stand-alone 6meter band transceivers, although commercial production of these has been relatively rare in recent years. In many countries, including the United States, access is granted to entry-level license holders. So there is an award for six meters and separate awards for higher VHF-UHF and microwave bands as well as for satellite QSOs. That must be why they call it the DX window. I was sometimes able to successfully communicate, in SSB and CW, with about 20 watts on 50 MHz, from Montral, Quebec, late on a clear night in August, with ham radio operators located on the western shores of Lake Ontario, some 600 km upstream and my antenna was a simple folded dipole oriented north-south, up at 30 feet, therefore radiating broadside toward the west and east.That's what tropospheric "ducting" can do for night owls like me! Colorado Amateur Radio Frequencies; Colorado Amateur Radio Repeaters; This chart shows privileges and band plan recommendations for each of the frequencies, as granted by . For example, the IC-9100 has settings for two preamps on the HF+6 meter frequencies. The VHF signals which are emitted within this "conduit" can reach hundreds of kilometers, as long as the "conduit" remains intact, thus contributing additional 6 meter ham band activity.An Example: In Qubec, the city of Montral is located in the St. Lawrence River valley. Scanner Frequencies and Radio Frequency Reference for Amateur Radio (United States) Scanner Frequencies and Radio Frequency Reference for Amateur Radio (United States) Database Home; MyRR; . Of course, your mileage will vary. Perhaps thats in the SOTA requirements. VHF (50 MHz and 144 MHz) radio signals can travel way beyond the horizon thanks to various propagation modes. This next chart is the same data but plotted cumulative. An Internet search on six meter beacons list will help you find the frequencies and locations. Many, many lament this significant change on six meters. In just 3 minutes, you will know if a band is really open to a particular part of the world regardless of band activity! Ham Radio For Dummies Explore Book Buy On Amazon If you're new to ham radio, these articles contain information that new ham radio operators should keep handy while gathering experience. Fortunately, William R. Hepburn has developed a method of forecasting tropospheric ducting for up to 6 days ahead. (Source: https://www.youtube.com/watch?v=ziRKy6rNpR8). W6PQL has some parts kits available. I received it on my vertical. This typically involves starting with a Heathkit SB220 HF linear amplifier. You can find it at Harnessing Meteors for VHF QSOs. I am newbie Ham and doing SOTA. [a], On October 10, 1924, the 5-meter band (5664MHz) was first made available to amateurs in the United States by the Third National Radio Conference. JT65 helped me put Dominican Republic in the log in 2014 and later during a TEP opening that same year added Uruguay to my log. During the Expo I bring all this to life in a 30-minute presentation and then take questions. Its verboten for USA stations to call CQ in this area. and slips under the warmer air, lifting it up. I also suggest you take a look at a few of the online dipole calculators. 73 de VE2DPE Claude Jollet 7, Rue de la Rive, Notre-Dame-des-Prairies, Qubec, Canada J6E 1M9. You have entered an incorrect email address! Frequency Bands Chart [PDF] (8.5 X 11; grayscale) Frequency Bands Chart [PDF] (8.5 X 11; black/white) Frequency Bands Chart [PDF] (8.5 X 11; color) . There are some dedicated rigs for six meters including many older vintage rigs including the Drake TR-6, the Heathkit SB-110A, Yaesu FT 690, Icom IC-575, and many, many others. I started that day with a Sporadic E opening working V31MA followed by TG9AJR. Its a never ending journey that has as its reward new call signs in the logbook, new grids, new friends, and pure magic working stations that simply shouldnt be possible at six meters. One thing that I see on the air is the movement of the Sporadic E cloud. I also wanted a lightweight antenna for use on the push-up mast. In that position, it provides virtually all forms of propagation familiar to HF and VHF operators along with a few that are much more prevalent on six meters. In addition, the program will track the Beacon Stations on all bands (20, 17, 15, 12, and 10 meters). On the tube side its the same story trying to find a dedicated six meter amplifier. It is then possible to bounce our 50 MHz signals off them, which allows us to communicate with radio amateurs over distances comparable to those obtained via the sporadic 'E' layer, especially in the Nordic countries. When the US entered World War II, transmissions by amateur radio stations were suspended for the duration of the war. I am considering to use 6m band on a regular basis without magic side of the band. 6meter frequency allocations for amateur radio are not universal worldwide. Pointing your antenna at them and monitoring whats happening both on the air and on the chat system can help you snag one of those grids when the conditions are just right. 80 metres or 80 / 75 meters - 3.5-4.0 MHz (3500-4000 kHz) - Best at night, with significant daytime signal absorption. Heres the data in pie chart form for six meters from March 1, 2020, to March 26, 2021. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, The upper end of the band, starting at 53.0MHz, and going upwards in 100kHz steps to 53.8MHz, used to be similarly reserved for RC modelers, but with the rise of amateur repeater stations operating above 53MHz in the United States, and very few 53MHz RC units in Canada, the move to the lower end of the 6meter spectrum for radio-controlled model flying activities by amateur radio operators was undertaken in North America, starting in the early 1980s, and more-or-less completed by 1991. Save my name, email, and website in this browser for the next time I comment. But before we move on lets look at a few of my personal magic experiences on six meters. This valley originates in the lower Great Lakes of Ontario and Erie, located to the southwest. I was running 100 watts CW into a dipole in my attic. As to horizontal polarization versus vertical, it is best to match polarization on both sides of the QSO. Despite support in more available radios, however, the 6meter band does not share the popularity of amateur radio's 2-meter band. Current manufacturers included Advanced Receiver Research (ARR), Mini-Kits, and Elecraft. Elecraft, Icom, Yaesu, Acom, Ameritron, and others offer these amplifiers. The WSJT-X software suite has a mode called ISCAT that uses similar techniques to MSK144 to essentially bounce signals off tiny patches of ionization in the E layer. I used a 1:1 balun designed as a center insulator and covering 1.5 to 54 MHz. The advantages of these antennas are: directional, good front-to-back, and smaller than a Yagi. The Par Electronics Stressed Moxon brings this compact design to six meters. Amateurs often use the band to experiment with the maximum communication distance they . The most popular way of getting information on 6 meter ham band activity is by monitoring DX clusters. 6 Meter Simplex Frequencies: --51.500 51.520 51.540 51.560 51.580 51.600 52.490 52.510 52.525* 52.540 52.550 52.570 52.590 6 Meters (50-54 MHz) 2 Meters (144-148 MHz) Notes: The frequency 146.40 MHz is used in some areas as a repeater input. This was followed by WSJT-X and many more new modes from JT9 to MSK144, and now FT8 along with FT4. As such it sits midway between the HF bands, ending with 30 MHz, and the higher VHF bands, starting with 144 MHz. 33cm band = 300 / 0.33m = 909.091 MHz, a long way from the middle of the suggested frequency band of 902.000 - 928.000 MHz. It has about the same gain as a Moxon. Now thats some real magic with nearly world-wide propagation. Magazines, Newsletters and Web Pages WSJT has also brought meteor scatter to many stations who in the past could only dream about such operations. Thank you! Normal distances on Es can range from a single hops 1,500 miles to double and triple hop. This should perhaps more clearly demonstrate when six meters is working and when it is not working. Perhaps thats an FT8 phenomenon. 70cm: Best quality even surrounded by buildings and obstacles, good penetration. But I chose this one to fit my VHF Limited Rover operations. If it's a beacon, I can get its call sign and I then look it up in G3USF's list for more information on its: G3USF's Worldwide List of 50MHz Beacons (https://rsgb.org/main/operating/dx-cluster/) - is compiled and regularly updated by Martin Harrison, G3USF, for the Propagation Studies Committee of the Radio Society of Great Britain. YouTube Presentation by Frank, W3LPL, on 6 meter Yagi Antenna Systems. TEP typically happens in the late afternoon and early evening. It relies on the aurora borealis, also called the northern lights, which is caused by solar activity chiefly due to solar flares. I would like to emphasize a point about transmission lines that I consider extremely important. TECHNICIAN CLASS FREQUENCY PRIVILEGES IN HAM RADIO When you're getting started, remembering where you're allowed to operate is important. Works best in winter due to atmospheric noise in summer. Cool stuff. Those without access to international HF frequencies often gain their first experience with truly long-distance communications on the 6meter band. The comments column will usually give information on the mode used in the QSO. Meteor Scatter happens on 50.260 and also 50.265 MHz. For software I use SDR Console, which is power packed and free. This SDR cost $30. On six meters you are traveling through another dimension, a journey into a wondrous land whose boundaries are that of 50-54 MHz. It allowed me to add to it over time, moving from a QRP rig to a 100 watt rig, then sub-receiver as well as a six meter preamp. This was a signal from K5N in the rare grid of DL89. Can work other directions with some loss of gain. For my operation, Im using a Nooelec SMArt USB RTL-SDR covering 25 to 1750 MHz along with a transmit-receive switch that connects the SDR to the antenna on receive and the IC-9100 on transmit. More on operating this mode in the next chapter. Copyright 2008-2022 Claude Jollet - HamRadioSecrets.com | All Rights Reserved. This activity is usually called 6 meter meteor scatter.The Perseids, Orionids, Leonids and the others are predictable. There is always one more type of antenna to try out, no matter how many youve worked with in the past. California Department of Corrections and Rehabilitation. I will note that the MA6V is an offset center fed vertical dipole, no radials needed. Many of the conversations are about lining up lengthy meteor scatter contacts and, while those are very helpful, with my limited station Im not really able to take much advantage. Ill also note that Ive worked Argentina and Uruguay using that dipole and 100 watts. I have made many contacts using a simple magnetic mount 1/4 wave whip. Some of them favor VHF radio propagation of 50 MHz and 144 MHz frequencies over long distances. There are antennas for all tastes and budgets. Given this approach, it works very similar to meteor scatter. Ive also added a Directive Systems 5-element Yagi that gets deployed for rare 6 meter grid activations and from home. In some other countries, the band is restricted to military communications. Here is a detailed description of the creation of the northern lights on YouTube. I seldom see anyone active. I did a fair bit of review of the available options and selected the InnovAntennas 3-element LFA. In the UK, 5051MHz amateur use is primary, and the rest is secondary, with power limitations. The PSK Reporter system consists of lots of stations around the world with receivers on the ham bands tied into a large database collecting and displaying all this information. UKSMG 50MHz DX Cluster - Latest Spotshttp://uksmg.org/dxcluster.phpThis page of information lets you look at all the latest spots, worldwide or you can choose to filter them by continent only. Next is determining how best to take advantage when Es does happen. NXDN NEXEDGE 4800. When it does, the squelch opens and I can stop the scan to listen. They include MSHV and JS8Call. 6m: Feels like its suitable for plain only but it can TX for a very long distance even w/ QRP 2m: Compromise of distance and voice quality, able to TX far meanwhile maintaining quality. Mine goes together in minutes. Monitor it often and make your calls there but move to another simplex frequency if possible to keep it open for use by others wishing to make simplex contacts. In the northern hemisphere, activity peaks from May through early August, when regular sporadic E propagation enables long-distance contacts spanning up to 2,500 kilometres (1,600mi) for single-hop propagation. It can be particularly helpful if you have a panadapter that can provide a wide display of the entire range for CW beacons. The theory that I like is documented in a doctoral dissertation by Christina Arras dated 2010 titled A Global Survey of Sporadic E Layers based on GPS Radio Occultations. [] Ive done with the Guide to VHF Contesting References to Further Information and the Guide to 6 Meter DXing Getting Started on the Magic Band, I felt it might be a good idea to pull together a number of resources for those in pursuit of the [], [] a number of blogs on this website, written a short book, and have published the book content on a web page so that its more convenient for the online [], [] openings this week.

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