160 meter band. Let us explore its distinguished features.
Find MFJ 1779A 160M Dipole Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! MFJ 1779A 160M Dipole Antennas are 265 ft. 160 Meters (1. 80 meters – 3580 to 3600 kHz (JA 3520-3575 kHz), during contests 3570 (or lower)-3600 kHz. Comprehensive Coverage:The HyGain AV-6160 is a 43-foot (13. 8 to 2. CW: 2200Z January 26 to 2200Z January 28. states, Canadian provinces, and countries as possible utilizing the 160 meter band. The first step was to replace the filament choke. That is just not going to happen on 160 at this location. Jan 4, 2020 · The initial results were encouraging. My longest-distance contact on the band was only about 1100 miles away. The power limit was 25 watts night and 100 watts daytime, the band was restricted from 1800-1825 kcs in the area where I lived. 303 of the FCC Rules on the ARRL Site. In this instance, I used a PALSTAR HF-Auto to match the antenna. PY2GN WebSDR - Pardinho, SP, Brazil. The signals on 160 meters were indeed weak, but the noise was relatively low compared to the dipole. 88 out of 5 stars ( 8 ) The Basic Dipole Antenna for 160 meters One of the major problems with a dipole on 160 meters is physical size. com Jun 8, 2024 · Contest Objective: For Amateurs worldwide to exchange information with W/VE amateurs on 160-meter CW. A Jul 30, 2024 · If the frequency is 3. Note the lengths for the new 60 meter band frequency to be effective March 5, 2012. Why? Lower sideband (LSB)--The common single-sideband operating mode on the 40, 80 and 160-meter amateur bands. A neighbor to the AM Broadcast band just slightly higher in frequency, 160 has very similar conditions to what you hear on AM Broadcast, quite localized during the day, with long distance capability at night. SWL During the current lull in solar activity, operation on the 160 meter ham band has become more popular. 880, 3. The 160 meter loaded vertical antenna is constructed using an inexpensive Telescopic Fiberglass Fishing Pole 10m in length. l = L /2. Heavy Aug 26, 2024 · Butternut 160 Meter Top Band Resonator Kits. 300 28. Jun 5, 2023 · 630 Meters. Some may consider this difficult; it isn’t. Specifications. For the ultimate challenge, there is 160 meters, which occupies 1. 300 – 28. Evolution of the dual band 160/80 meter inverted L using MMANA Learn about different types of wire antennas for the 160 meter band, such as loops, slopers, dipoles, and zepps. 900 to 2. Part Number: DXE-160VA-1 5. But by convention, some frequency bands use one; some use the other. Tune the 20 meter thru 10 meter bands in the upper side band (usb) mode for voice. Foundation and Intermediate Licence holders are advised to check their licences for the permitted power limits and conditions applicable to their class of licence. It is often taken up as a technical challenge due to the difficulty of long-distance (DX) propagation caused by higher D layer ionospheric absorption. 1005 / 18. The 2024 CQ World Wide 160-Meter Contest. 160 meters, in contrast is normally open for contacts out to several hundred miles away with Oct 12, 2023 · 160 meters. Once I enabled the preamp, I had plenty of signal to work with. PI4THT - 80m, 40m, 20m band signals from Amateur Radio Club of University Of Twente, Enschede, Netherlands. 8-2. 7 MHz) to 260 feet for the 160-meter band (1. Because of LORAN issues (LORAN is a radio navigation service), there have LowFER operation is practiced in the United States and Canada on radio frequencies between 160 kHz and 190 kHz [1] which is sometimes referred to as the 1750-meter band, [2] and in the past as the 1875-meter band. 8 Œ 2. Get 160-6 Meters Coverage and 1500 Watt Operation with a single antenna!This MFJ-2990 is a 43-foot self-supporting vertical antenna that covers 160 through 6 Meters with the use of an antenna tuner. The band consists of frequencies stretching from 28. The new 60 meter ham band: This ham band is usually better at night. 9 megahertz as it requires 260 feet of space. Having a single wire to cover the lowbands is tempting, but may not be worth the increase in complexity and probability of failure. e. It weighs just 20 lbs. A dipole works best at and above its fundamental-resonant frequency. It is a project to build only one part of a double bazooka antenna system. 0 MHz) often called top band for amateur radio use. 8 kHz and cleaning up the rules for the 10. It's a great amateur band but not so good when it comes to aerials. Unfortunately, the frequency range is as follows: 70. See Table 1. 65–74. The first order of business for an introduction to 160m is to look at the band plan for 160m Œ what frequencies should we use for CW, what frequencies should we use for SSB, what frequencies should we use for AM, etc. Territories may be worked by DX stations. General, Advanced, Amateur Extra licensees: 472-479 kHz: CW, Phone, Image, RTTY/Data. Warranty. 4 feet). One end is attached to the common ground point at the transmitter, and the wire is run along near, but not touching, the ground. 810 CW QRP The 60 Meter band is a shared band with government transmitters. Frequency Range: 472–479 kHz; Operating Modes: CW, Phone, Image, RTTY/Data; License Class: General, Advanced, Amateur Extra licensees; 160 Meters. 160 meters, often known as Top Band, is technically Medium Frequency (MF) band, the only one licensed to amateurs. To fully understand the results obtained by this calculator, please take a few minutes to read the explanation below it. 5 GHz band. 5 m. Can be used as a off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz . Mar 26, 2009 · I agree that 160 meters is definately the gentleman's band. More radiation area than a half wave dipole with #12 wire. 0 MHz. 0MHz, 150W PEP, UHF Female/SO-239 connectors, Each Part Number: VAM-LP-BPF-160 160 meter band. Coaxial cable was connected directly to my transceiver that had internal ATU. 295. Band Frequencies (In MHz) Modes You Can Use 80 meters 3. In the 2009 CQWW 160 Meter contest, I worked 46 states and 7 countries using 600 watts in just a few hours of operating. Free Shipping; Documentation Apr 19, 2018 · However, when I operated on the lowest ham band, 160 meters (1. The swr was low across the whole 80 meter band! However, there was no 160 meter resonance. These changes include changing the allocation to the amateur portion of the 160 meter band, allocating a new Amateur Service band at 135. I firmly believe that the technical complexities required to put and recieve a good signal on the band, seperates the men from the boys. This antenna was used on 160 m in December 2019 on WSPR with 20 W over several nights. By using a good BalUn, Common mode current are prevented, which also reduces interference from your direct environment. 0 MHz: 80 Tune the 160 thru 40 meter bands in the lower side band mode (lsb) for voice. Covers 160-6 meters. Before calling the factory, BE SURE to do an SWR "run" across each band. It is the lowest frequency range we can transmit on, and it presents technical challenges similar to the 80m band but in greater degree. 0 225. Let us explore its distinguished features. 0) 1. The 160/80/40 meter multiband fan dipole (lower right) mounted on the tower! CONSTRUCTION DETAILS: In the photo above, the 160 meter section is on top, 80 meters in middle and 40 on bottom. In this article he shares some of his experiences with receiving antennas. 1125-70. 8-2 MHz). (RTTY operation above 3600 KHz is not permitted in the USA). pcb = usd10. A magnetic loop is an extremely high-Q antenna with a very tight bandwidth (think ~5kHz on the 160m band), but they are tunable. Oct 5, 2021 · UK 160m Band plan (1. org All Frequencies in MHz. Height, Kit. A 160 meter dipole antenna is a type of wire antenna that is designed to operate on the 160 meter amateur radio band, also known as the top band. 1740? (proposal) Who could define it? How could we inform the community / the software ARRL BAND PLAN 160 Meters thru 10. 286 10-160 meter end-fed 60-foot long HF Antenna that enables you to use a tuner to achieve a near perfect SWR, with limited efficiency on 160 meters. 375= 198. See diagrams, descriptions, and references for each antenna type. 160 meters is in many countries the lowest-frequency band on which amateurs are licensed to operate. 160 meters is the oldest amateur radio band. 4. Find EAntenna Sloper Antennas 160 meters Wire Antenna Band and get Free Shipping on Most Orders Over $99 at DX Engineering! The EAntenna Slopers are shortened with a coil to reduce the antenna length, but behave like quarter-wave sloper antennas. 1 meters) self-supporting vertical antenna that seamlessly covers a wide range of frequencies from 160 through 6 Meters. See ARRLWeb at www. The formula 468/F will give the length for any given frequency, but for many hams the room isn’t available to put up such an antenna as for 1. ARRL The National Association for Amateur Radio ® 225 Main Street Newington, CT, 06111-1400 USA Tel: 1-860-594-0200 | Fax: 1-860-594-0259 Toll-free: 1-888-277-5289 hq@arrl. Each matchbox is purpose-designed for use with "this" antenna. Operated by C31CT and EA3KZ. Hams are secondary users, not Dec 31, 2017 · Again, my friends 160 meter inverted ‘L’ was a 3/8th wave so in essence ~200 feet not the 124 feet shown in this diagram. I put in a series resonant LC circuit across the first capacitor and that created a new resonant point inside 160 meters. Nov 22, 2021 · There will be lots of activity on 30, 40, 60, 80, and 160 meters through the fall and winter. Part Number: MFJ-1779A. 000 MHz 40 meters – 7025 to 7050 kHz and 7080 to 7100 kHz, during contests 7025-7100 kHz (JA 7030-7100 kHz). Like any Sloper antenna, it is directional with a low angle for excellent long range DX results. 525-3. Directivity is away from the supporting metal mast I'd seen all sorts of recommendations Online about the length of wire for a 160-Meter loop, and none of the were 160 Meters. Nov 22, 2023 · 15. 290, 7. On each half of the antenna, all dipoles halfs are connected together at a common point on each side of the center insulator. The nominal "15 m" band actually ranges from 14. Reply. 010 MHz. Have fun! Learn more about 160-meter antennas and operating with these ARRL publications DXing on the Edge—The Thrill of 160 Meters by Jeff Briggs, K1ZM Antennas and Techniques for Low Band DXing by John Devoldere, ON4UN, Sep 22, 2017 · 160 Meters (1. 7-137. 0 the 10-meter band (28-29. 000 MHz. My homemade amateur radio antenna for the 160 meter band is the result of many considerations, inner debates and tests. This band can be used for contesting, though there are other preferred bands in most cases. The lightweight construction make it easy to handle and self supporting offering minimal wind resistance. A 40 meter horizontal loop may work on its harmonics. A band-by-band plan showing where to find different types of activity is available from the American Radio Relay League (ARRL). The included To determine the length of the wire needed for the desired band, simply divide the desired resonant frequency in Mhz into 1005 eg. You can use an 80 meter horizontal loop on 20 meters if you feed with open wire line. For 160 Meters. Using the calculator above, meters can be converted to frequency. Resources. I was first active on 160 meters in early 63. It also used to be the lowest frequency band allocated to the amateur radio community. 8 MHz) 1. 553-13. Novice and Technician classes: 3. 825, 3. The measurements of the limbs and stingers are band (or band section on 80 and 160 meters) dependent, so I’ll add the needed math in a post below this. True, the q section only works on one band, in this case, 160 meters. MFJ-1778 MFJ Enterprises Original G5RV Wire Antenna 160-10 Meters, 102 Ft Long. 000 to 29. In the First Edition of the Radio Amateur™s Handbook (1926, published by the ARRL), Amateurs had an allocation from 150 meters to 200 meters in wavelength (that™s 2 MHz down to 1. Now just $103. The best DX was BD7 at 9538 km with a report of -25 dB (Not exactly band crunching). 99 Features. The popularity of the 160m band has decreased over time. Check out this video to learn about A GENERAL DESCRIPTION OF EACH HAM BAND Amateur Radio Band Characteristics. 270 feet (90+180) long. 885. 5 dB Loss at 1. 40 Meters: 7. That meant most of my signal was going up, not out. Kelemen Dipoles are rugged; strong but lightweight, with good stability and excellent longevity. Butternut Top Band resonator kits add 160 meter coverage to HF2V, HF6V, and HF9V antennas. Covers 80, 60, 40 and 20 meters. They feature special traps made with of PTFE (Teflon®) insulated coax for high Q and low losses, offer high performance multi-band operations Cushcraft MA160V 160 Meter Vertical Antennas Cushcraft MA160V Antennas are compact, efficient verticals specially designed for working Top-Band DX from an average-size house lot. 2 Meter & 70cm UHF VHF Dual Band 144/430MHz NMO Mount Antenna with 16. 700 MHz. 945, 1. 80 metres or 80 / 75 meters – 3 500–4 000 kHz – 85. Random Length Radiator Wire Antenna. They're rated by Butternut at 500 watts CW, 1 kW SSB. 000 MHz You need only register once for each band. Meaning the FT8-frequency is not legal in Switzerland. 25 Meters (222 MHz) 219. It is slightly higher in frequency than the broadcast band (540 kHz – 1600 kHz) and behaves similarly. 800-2. 5000. It consists of a center feed point, where the antenna is connected to the transmission line, and two equal-length wire elements that extend in opposite directions from the center point. It utilizes a 9:1 UNUN transformer in order to bring the impedance of the antenna to more manageable values for your antenna tuner. Sharing arrangements; Detailed packet frequencies [PDF] Phone patch, autopatch and HF/VHF/UHF operating guidelines "Considerate Operator's Frequency Guide" 2200 and 600 - meter bands Oct 7, 2019 · Starting January 1st 2023, the 70MHz Band is open to HB9-Amateurs in Switzerland. Apr 14, 2022 · 630 Meters. 00 ft. Amateurs had an allocation from 150 meters to 200 meters in wavelength (that’s 2 MHz down to 1. arif says: December 1, 2019 at 12:07 pm. 900 E,A,G MHz Avoid interference to radiolocation operations from 1. 000 – 28. S. 5 feet in length I use the true and tested formula of 1005/Freq in Mhz = length in feet (1005/1. 800 135. 22 different wire antennas for the 160 meter band random length radiator wire delta loop loop antennas off centered antennas sloper dipoles z antenna zepp and clothesline antennas. A true ¼ wave would be 132. 8 – 2. The Helical antenna had serious ground. 33 out of 5 stars. 160 Meters 1. Attention Newbies to TOP BAND, 160 Meter starter kits are available from Rob AB4AM, supply is limited due to the limitations on the harvest of Whale Sperm Oil, the active ingredient in antenna grease, NOW BACK IN STOCK and the diameter of the coil for a given band. E = Amateur Extra Introduction To The 1750 Meter Experimenters Band The 160-190 kHz slice of spectrum has been available to experimenters since the early 1950's. Upper side band mode only and is shared with U. 025 – 7. Figure 1 shows design of the antenna. 885, 1. Hams are secondary users, not Jan 6, 2002 · Lionel Remigio, KC4CLD writes… "For the past months I have been watching the 160 meter band. With great glee I e-mailed my friends who were both amazed and skeptical that the antenna would work on both 160 and 80 meters with 160 Meters (1. But if a total-length limitation imposed by property boundaries or the spacing of avail- Jan 18, 2018 · Check out this video to learn about the 160 meter band. where: L — Length of the dipole antenna in feet; l — Length of each arm of the dipole in feet; and; f — Frequency. The challenge with 160 meters is that the antennas for this band Wide 160-Meter SSB contest. II Aug 26, 2024 · Find Kelemen Monoband Dipoles and get Free Shipping on Most Orders Over $99 at DX Engineering! Kelemen Monoband Dipoles are high-quality, preassembled wire antennas featuring full-size models and a few shortened low-band models with coils for lengths that are easier to fit in the yard. In the evening when most of us have time to relax and enjoy a little time on the radio, the higher frequency bands are either dead or very crowded. for the 160 Meter Band. The 160 Meter Band frequencies are just above commercial AM broadcast bands. Sep 30, 2020 · The vertical antenna is specifically designed to operate on 160 meters…and uses a large capacity hat to create a proper match. 870 (West Coast), 3. For DX, with limited operating time, I have worked 30 countries. 800 - 1. Please note that these kits will not work with the Butternut counterpoise (BUT-CPK). The name conjures large antennas, thundering static and gray haired old men from a vanished era chatting 160 M 248. 125 CW 15 meters 21. 0 928. The 160 Meter band dipole antenna is symmetrical so that the noise level will in many cases be quieter compared to asymmetric antennas. You will achieve the strongest possible presence at your power level and be competitive with a 160 meter vertical monoband antenna that is 160 meters band antenna category is a curation of 158 web resources on , Short antennas for 160m, Hex-Shaped 160 Meter Receiving Loop, Thin wire 160 metre G0CWT Loop Antenna. If you have the room, I always hear that a full-wave loop is a great antenna for 160 meters. 160 Meters: About 90% of the 160 meter band is covered using the "SouthWest" TCI-532 antenna: This antenna is being used below its design frequency and as such, its coverage is more or less omnidirectional. It will probably work at any frequency in the band, once it's properly adjusted for a low SWR. Half Delta Loop Antenna. Oll says: Our Rugged 160 Meter sloper 160 Meters is a great band! Our "Sloper" will greatly enhance your "top-band" performance! Get yours on the way! Get on 160M without a hassle! Simple to install and easy to tune! Available in 160M or 75/80M versions. 8-Band: 160, 75/80, 40, 20, 17, 12, 10, & 6 meters. antenna including the feed line and a one watt input to the transmitter power amplifier be used. VA6AM Engineering HF Band-Pass Filters LP-BPF-160 Filter, Bandpass, 160 Meter Band, 1. Whether you are a newcomer The final episode in the mini-series about learning HF bands. The 160 meters band is located just above the commercial AM broadcast band. General, Advanced, Amateur Extra licensees: 1. 0 220. RECEIVING ANTENNAS The K9FD Receiving Loop The Answer To Suburban DXing On the Low Bands – by K9FD Editor’s note: Merv Schweigert, K9FD, has been working jusl about everything on the 40, 80 and 160 meter band” this season. Delta Loop Antenna. The length of a loop best suited for operation on 160 meters is too short for use on the higher bands. Jul 22, 2024 · Meter band to Frequency Table. 500 Sep 10, 2015 · The cheapest solution for the 160m band is probably a magnetic loop antenna, but do be aware that these antennas are optimised for small space and low cost, and NOT for performance. Resources listed under antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. org for detailed band plans. 225 Operation within the band 13. 95 + $15. Jul 22, 2024 · The 160-meter band is known for its unique propagation characteristics, especially during nighttime and winter months, making it a favorite for long-distance (DX) communication and experimentation. Reply to a comment by : K5QED on 2009-03-26 Single Wire Dipole Antenna, Multi-Band, Resonant, 600 W 160, 80 meters PEP, 1000 W 40 meters PEP, 100 ft. 810 Digital Mode 1. May 6, 2018 · 12 dB: 3 element YCCC tri-band array of short active verticals 120 ft long 12 dB: 5 element YCCC tri-band array of short active verticals 84 x 84 ft 12 dB: 9-circle YCCC tri-band array of short active verticals 120 ft diameter 12 dB: Horizontal Waller Flag: 2 phased horizontal loops well over 100 ft high for 160 and 80- meter Band RV9CX Inverted L Antenna for 160 and 80- meter Band By: Dmitry Avdeyev, RV9CX The antenna is very simple and can work on 160 and 80- meter Band. Can we eventually change this to 70. 1. diameter stainless capacitive hat for high efficiency, resiliency, and 1,500 watt As with any antenna, lengths should be cut longer than formula results and then trim as needed for best swr. If you have no particular preference within a given ham radio band, then simply enter its center frequency (i. In fact, some have warned against attempting the antenna due to the trap alone. *** Find DX Engineering 160 Meter THUNDERBOLT® Vertical Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! DX Engineering 160 Meter THUNDERBOLT® Vertical Antennas are high-performance antennas specifically designed for use on Top Band. A popular idea for a 160 Meter radial ground is a insulated wire (~126'). 8 kHz 160 M 248. OBJECTIVE: For amateurs around the world to contact other amateurs in as many U. Of course, you can also modify the design for use on other bands (80 meters, for example). By common sense, the "15 m" band ought to be called "14 m", but that name has been in longtime use for a shortwave broadcast band. 900, 1. The problem on 160 meters is even worse. Sharing arrangements; Detailed packet frequencies [PDF] Phone patch, autopatch and HF/VHF/UHF operating guidelines "Considerate Operator's Frequency Guide" 2200 and 600 - meter bands Aug 2, 2020 · I need to improve my EMI filtering on some of the lines entering the shack, to make sure I am choking common-mode RF in the 160 meter Band. Other stations in the USA approximately 5000 km to 6500 km away could also hear the signal. 410-13. This loop often delivers the best quality receiving signal, especially if there are plasm TVs operating in the vicinity (see the PIXEL loop page for more details about the performance of this loop on the 160 meter band). 525 – 3. Choose any one, two or three units for the band coverage you desire: *RF Mu Tune Kit A External Preselector for 160 meters *RF Mu Tune Kit B External Preselector for 80 and 40 meters *RF Mu Tune Kit C External Preselector for 30 and 20 meters Connection cables are included with each kit for the use of one, two or all three of these external Feb 13, 2020 · 630 Meters. Their custom injection-molded, UV-resistant center insulator has a built-in coax connector and a hanging-hole for rope support. ” The 2:1 SWR match on my Thunderbolt measured about 50 kHz wide, and as I’m an ardent DXer, was easily adjusted for resonance in the middle of the DX/CW portion of the band centered at 1. 0 222. The FTDX-3000 already has a very low-noise level on receive. 160 meters. , Assembled, Each Part Number: ALF-DX-LB 3. 000 MHz 1. One of the easiest and most effective ways to operate on top band! Over 900 square inches of radiation area. We present to you the HyGain AV-6160, an innovative addition to the realm of vertical antennas. DX’ing on 160 Meters? Part I Larry Jacobson -- K5LJ ( with assistance from Rick Hiller -- W5RH) No way you say! 160 meters is the lowest frequency amateur band located just above the AM broadcast band. EXPLORE ARRL 1240 23 cm (1240 MHz)* 1270 1295 1300 N (5 W )E,A,G,T MHz 33 cm (902 MHz)* 902. 375 (529’ x . 025 – 21. Frequency Coverage: 1. At that time LORAN was on 160. Frequency Range: 1. (USA stations are also allowed RTTY between 7100-7125 kHz). 28–13. [3] Isotron ISO-160 160 Meter Antenna $249. rules. Frequency Range: 472–479 kH: CW, Phone, Image, RTTY/Data License Class: General, Advanced, Amateur Extra licensees. 2. 20 Meters: 14. 160 meters – 1800 to 1810 ANTENTOP- 01- 2017 # 021 Two Helical Antennas for 160 meter Band Figure 1 Design of the Helical Antenna for the 160 meter Band Figure 3 shows Balun with RF- Choke in my basement. Big 2 1/8″ bottom section tapers at the top to 3/8 of inch for flexibility, strength and 92mph wind rating with wide bandwidth. The Starting Point . The antenna diameter is 2” OD at the bottom, 0. 0 MHz): Find Kelemen Trap Dipole Antennas 160 meters Wire Antenna Band and get Free Shipping on Most Orders Over $99 at DX Engineering! Kelemen Trap Dipole Antennas are high-quality, heavy-duty pre-assembled wire antennas intended for permanent installations. 7 MHz (160-10 Meters) Peak Power: 250 PEP SSB, 125 CW, or 25 watts for digital modes. No time for a G5RV on 160 This is an End Fed Long Wire wire antenna that will cover all bands from 160 to 6 meters, including the WARC bands, as well as 60 meters and MARS frequencies. 9 MHz Full-Wave Loop Antenna. Updated: Last year we added an NJ3I High power 1:1 Isolation transformer between the feed-line and the matching 1/4 75 ohm coax. 75 Meters: 3. On the higher bands the TBR-160X produces decreasing values of capacitive reactance, raising the resonant frequency (by 300-400 kHz) on 80 and 40 meters. 567-13. You can work DXCC on 160 if you're crafty, persistent, and skilled. Read from left to right to see the relationship. 554 meters, and the dipole leg length is 19. 0 feet 60 - 90 feet 15 - 20 feet thus making this antenna able to operate with a very low SWR across the whole band. ARDAM Ham Radio Club WebSDR - located in Ordino, Andorra, in the heart of the Pyrenees. Copper rod in three meter length was hammered near That means your radio will use either the upper sideband (USB) or the lower sideband (LSB) for a particular contact. Do about 10 kHz at a time on 160 meters and 20 kHz at a time on 80 meters, turning the dial slowly, with the tuner bypassed, to develop a resonance/SWR curve for each band. 5Ghz For sharing arrangements, see Section 97. 0 MHz E,A,G,T 70 cm (420 MHz)* 420. Anything shorter becomes a challenge to match on the upper bands and increases the chances of the feedline becoming the radiator and a source of RFI. 277 meters. This event was created by a small group of contesters who were interested in 160 meters (TopBand). MA160V antennas feature a heavy-duty, high-Q copper loading coil plus a wide 100 in. Thanks Thys. 0000-70. Off-Center-Fed Full-Wave The KJ4IIF Multiband "FAN" Dipole for 160, 80 and 40 Meters Harmonics Chart Compiled by and Courtesy of N5JNX The chart below shows the harmonic relationship between a 3 band fan dipole antenna designed for the 40, 80 and 160 meter band with other amateur radio bands. It covers 160 m to 17 meter bands. 31 feet for midband 17 meters. You can legally use either on any frequency band. Constructed with a top-quality FLEX-WEAVE ™. Attention Newbies to TOP BAND, 160 Meter starter kits are available from Rob AB4AM, supply is limited due to the limitations on the harvest of Whale Sperm Oil, the active ingredient in antenna grease, NOW BACK IN STOCK KD9SV Products SV-BPF 160 Meter Band-Pass Receive Filters SV-BPF KD9SV Band-Pass Filter, Passive, 160 Meter RX Only, 1. arrl. 000 MHz: CW, Phone, Image, RTTY/Data 80 Meters. The 1750 meter unlicensed experimenters band requires conforming to FCC part 15 where a 50 ft. How did you do on "Top Band" this contest? Tell us your story! Go Now. Estimated Ship Date: Today. 95 m actual I-F — Low Frequency band 2200 Meters (135 kHz) 1 W EIRP maximum = cw only MF — Medium Frequency bands 630 Meters (472 kHz) 5 W EIRP max, except in Alaska within 496 miles of Russia where the limit is 1 W EIRP 479 kHz 472 kHz 160 Meters (1. Welcome to the Stew Perry Top Band Distance Challenge Home Page. 567 MHz shall not exceed 15,848 microvolts/meter at 30 meters. The chart covers all ham bands from 160 meters through 2 meters only. Low noise; SO239 Connection; The Isotron Technical Description Jun 8, 2024 · ARRL - 160 Meter Contest, 225 Main St, Newington, CT 06111. I have a antennas optimized for each band because I have enough space and trees for supports. lf you live onRead More Feb 1, 2024 · A multiple-band antenna that can cater to 6, 10, 12, 17, 20, 40, 80/75, and 160 meters. 160 Meters. and has a wind load of just 2 square feet. 6–16. 15 for the 40 meter band). What I have found is good, sound advice on the 160 meter skyhook that one needs to incorporate in an effective system. 5 MHz). 110-14. See full list on onallbands. The antenna described here is used by DF2BC who has limited yard space for antennas. Due to on-site equipment, there is some interference present on this receiver: We are looking into the sources of these signals. 000 MHz: CW, Phone, Image The 160m band has been around for a long time. 0 450. S government stations. Here you will find rules, results, and other information about this unique contest. 900 Mhz = 529 feet) which I multiplied that length by 3/8’s or . The 160-meter band is the oldest amateur band and was the staple of reliable communication in the earliest days of amateur radio, when almost all communications were over relatively short distances, and typical operating frequencies were below 20 MHz. 0375, 70. The lowest frequency at which a dipole is resonant is known as its fundamental resonance. Dec 31, 2023 · It is not a full set of directions to build a complete double bazooka. The first derives from the primary responsibility of ALL baluns: to keep transmitter RF inside the feed coax. Without this data we cannot find clues or help with suggestions as to what might be going on. Here are some typical OCF dipoles that are successful designs 160-6 meter Double Off Center Fed antenna layout (using a double tuned stub for better 20/40 meter performance) Here is the 160-6 meter SWR graph using 200 feet of RG213 feed line and an average height above ground of 35 feet: Palomar Engineers PAL-OCF1606 […] I was awarded First Place, Single Operator, Low Power for the Santa Clara Valley section in the 2007 ARRL 160 Meter contest. 0 E,A,G,T MHz 1. They will provide trouble-free 160-meter operation for many, many years. SSB: 2200Z February 23 to 2200Z February 25. If somebody tries to operate SSB below the DX Window, around 1,842 Khz, lots of CW operators would like to kill you. A map of the D/E-region electron History of 160M Band 1. 55). long, ultra-high quality center-fed dipoles. 160m is also referred as the "Gentleman's band". 830 MHz. 160 meters is also the band where the 38 inch diameter magnetic loop antenna (pictured at the left) really shines. 985. The formulae to calculate the dipole antenna and leg length are: L = 468 / f. Figure 3 shows SWR the antenna on 80 meter band. 200 CW 10 meters 28. Jul 29, 2015 · Top band DXing is real ham radio challenge. Stretch the delta out in a triangle on the ground and mark the wire at the sm5czq 160 37 on4ant 160 pa0lou 160 oh6ra 159 ua4hbw 158 40; ik0xbx 158 38; f6cwa 157 36 i2fug 157 hb9cxz 157 37 ly2ta 155 37 uu1ja 155 33 sp2jkc 155 32 g4bue 154 on4cd 152 30 oh3jr 152 29 sm3cwe 151 34 sm4ctt 150 35 oe1pew 150 oe1pfc 150 oh9om 149 yl2tw 148 37 gm3ppe 148 35 ra3auu 148 Dec 19, 2019 · Feeding in the bottom center gives you more Horizontal vs Vertical and the trade-off is well worth it as this antenna averages around an S4 to S5 noise level or lower during the 160 Season. Jan 12, 2024 · The TBR-160X functions as an inductive reactance in series with the antenna feedpoint, loading the antenna structure to resonate in the 160 meter band. 5 FT UHF 160 meters, in Toledo, Ohio's 1960 Ham-era, was like the two-meter band of today. 8 MHz, Each Part Number: SVP-SV-BPF Aug 14, 2018 · What is the price LMR SDR Transceiver 10-160 meter band kit or pcb. 0 MHz,) performance was sub-par, since the dipole was only 25 feet above the ground, and that’s just a fraction of a wavelength on 160 meters. Even so, there is an annual 160 meter contest, and plenty of contacts can be made here. See below for 60 meter mode information. Dec 1, 2009 · The 160 meter band, often affectionately called Topband by enthusiasts, is unique among all the amateur band allocations. DX-to-DX QSOs do not count for contest credit. Listed under the Antennas/160M category that is about Antenna for 160 meters band. Baluns can also serve other functions Also known as ‘top band’, the 160m band is usually grouped in with the HF bands and is the lowest frequency band commonly in use by HF operators (although it is actually an MF band). Popular Low-band Vertical Styles 80 meter dipole at that height is radiating most of its energy nearly straight up, so it is not an effective antenna for other than short range contacts, leaving aside how many such antennas it would take to cover the whole band satisfactorily. While SWR at resonance is modeled to be Jun 5, 2021 · Enter your desired frequency (MHz) of operation (i. The 630 Meter frequencies are just below commercial AM broadcast bands. 7 kHz 137. Nov 21, 2012 · On Tuesday, November 20, the FCC released a Notice of Proposed Rulemaking that proposes to amend Part 97 (among others) of the Commission’s rules. 0 MHz, -45dB at 1 MHz, 0. 7. The two most common suggestions seemed to be around 558' and 527', to include 160m and to maximize the amount of wire in the air. He uses this antenna efficiently on several bands from 160 thru 20m, but he has three different matchboxes, one for Top Band, one for 80m and one for 40/30/20m. 3. 7 megahertz, the antenna length is 38. 98 m. A hybrid aerial wire that assures you a long-lasting use since it’s durable, flexible, and designed for repeated use. It falls within the medium frequency (MF) range and is commonly referred to as the 1. 900 2. Figure 2 shows SWR the antenna on 160 meter band. So … here we go. DEADLINES FOR LOG SUBMISSIONS ARE 5 DAYS! I. Use the menu above to explore the site. Due to AM broadcast stations and other services, the 160m band was eventually narrowed up to 1. 40 Meter Addendum I have NOT The 43 foot 10-160 meter Multi-Band Vertical antenna is a freestanding vertical element with no traps or coils. The nominal "17 m" band actually covers 16. Figure 4 shows DD the antenna on 160 Find Mobile Whip Antennas 160 meters Mobile Whip Band and get Free Shipping on Most Orders Over $99 at DX Engineering! Whip Antenna, Mobile, 160 M, 100 Watts SSB Kelemen Trap Dipole Antennas include a series of monoband models, as well as a series of multi-band models that cover an extensive combination of HF bands from 160m through 10 meters. 5 W EIRP maximum, except in Alaska within 496 miles of Russia where the power limit is 1 W EIRP. Stations located in overseas and non-contiguous U. 120" thi Japan Expands 160 and 80 Meter Privileges Apr 22, 2020 · Spectrum · Dave, K1ZZ Effective on 21 April 2020, Japanese amateurs can operate in expanded frequency segments on 160m and 80m bands as described below. 50 s/h by priority mail, insured (In USA) Antenna, Vertical, 160 meters, 160m, 5,000 W, Guy Rope and Wire Capacity Hat, Pivoting Fixture Mount, 55. 553 MHz and 13. 900 E,A,G MHz You need only register once for each band. 160 Meters: 1. The return of the 160-meter band provided amateurs with additional opportunities to explore and enjoy their hobby, further enriching the amateur Propagation on the 160-meter band is difficult to predict for other reasons as well. Meter Band Frequency Range (MHz) 160 meters: 1. (b) Within the bands 13. Listening to the 160-meter Band with this setup was very enjoyable. I this video, I chat about an end-fed wire aerial for top band, the 160 metre ham band. 8 MHz or 160 m band. 800 1. An ideal combination for portable use. Specific models handle either 400 watts, 1,000 watts or 2,000 watts PEP SSB and CW at resonance. 0 out of 5 stars A band plan refers to a voluntary division of a band to avoid interference between incompatible modes. The 10-meter band is a portion of the shortwave radio spectrum internationally allocated to amateur radio and amateur satellite use on a primary basis. One major reason, in addition to the unpredictability of the level of D-region absorption, is that the frequencies in the 160-meter band are so close to the electron gyrofrequency (which is in the range 700 to 1600 kHz)4. 574' feet for 160-15 meters (10 meters also, but with a short feedline). 600 CW 40 meters 7. 8 - 2. A dual band/single antenna approach introduces complexity by adding a trap. 40 Meter Addendum I have NOT There are as many variations of a 160 meter antenna as there are favorite frequencies! I have been hunting for the "right" antenna for the Top Band for a long time and to-date, I haven't found it. No cheating over here, respect lads, respect! 160 meters - DXing on the Edge Welcome to new 160m band blog In this design, the existing SB-220 band switch is set to 80 meters for 160 meters operation, and 3 vacuum relays reconfigure the output pi-network for 160 meters operation controlled by a small toggle switch added on the front panel. 118 = 55. I prefer separate resonant no compromise Antenna, 160 Meter Single Band Wire Dipole, 1500 W, SO-239, Kit. 710 MHz, the field strength of any emissions shall not exceed 334 microvolts/meter at 30 meters. Fortunately, three easy-to-remember math-free rules-of-thumb that will get you there. 0-10. 8-29. Most commercially available HF rigs cover 160 meters and antennas, although still needing to be large to effective, are possible within typical gardens. The first thing we notice is that, except for 60 meters, the 160-meter band is not harmonically related to higher frequency ham bands! Note also that, again except for 60 meters, resonant frequencies (max peaks of current) skip over the 80 m and 40 m bands entirely , then occur below higher frequency ham bands, except for ten meters where it's A band plan refers to a voluntary division of a band to avoid interference between incompatible modes. Make sure that the 1:4 balun you choose supports the desired band and you are good to go. Why not take some time to improve or upgrade your low-band antennas? This column will focus on how to get more out of a low-band vertical, a very popular antenna for these bands. Antenna design is more difficult when the antenna is physically larger AND the nature of the band requires a separate RX antenna for serious DX use. (a) The field strength of any emissions within the band 13. There is a sense of community among topband hams; check out the Topband email list or the Topband Dinner at Dayton. 800 MHz to 2. nnembkc gzjxc ndetk nrski pkdefj sanu nhmg rnfn oaxyltjx hjwkq