The Diamond V2000A is a tri-band vertical antenna capable of delivering a potent signal on the 6M, 2M and 70cm amateur radio bands. Ordering Information - At this time we offer 7 antenna models. Particularly, wire antennas such as the short dipole and half-wave dipole antennas are presented, aperture, patch, reflector and travelling wave antenna types are presented. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). This antenna is. High isolation and high linearity double‐pole double‐throw CMOS switch matrix for Ka‐band wireless transceiver front‐end IC. The MS-3005 features: omnidirectional reception, built-in pre-amplifier, easy installation, low profile design, full 1080 HD, and 4K Ultra HD where available. However, it is imperative that you use the proper coax for the highest band of operation, RG58 just won't cut it and even RG8 in lengths longer than 25 feet is marginal in 440 operation. · Copper Cactus (Multi-Band J-Pole) With Drawings · COPPER CACTUS Antenna · Copper Cactus J-Pole antenna-- Plans for 1265MHZ -- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 435MHz-- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 223. 25m? I saw a few things in ARRL with building a J-pole tri band, but this pricing is good. The copper pipe J-Pole matching section would be exposed to the The DBJ-1: A VHF-UHF Dual-Band J-Pole Searching for an inexpensive, high-performance dual-band base. · 6 meter Amateur Radio Antenna - KB9VBR J-Pole Antennas - Great for FM communications, the 6 meter J-Pole covers the 50-54MHz six meter amateur radio band efficiently and with a low noise floor. The smart antenna supports automatic switching between Wave 1 and Wave 2 modes. 84 - Mini-Horse Yagi Antenna. 88 - Indoor Loop Antenna for 80m to 30m. The V2000A is the U. Wire Antenna Calculator. ADD TO CART CHECKOUT NOW. Check… Read more Alinco DJ-G7T Tri-Band HandHeld Transceiver Revie. Browse Gallery of Leblanc band pictures, images, photos, GIFs, and videos on imgED. Simple J-Type 10m Vertical by W6IOJ, Sept. A Dual Band VHF/UHF J Pole SCARC VHF/UHF J POLE ANTENNA This antenna provides continuous coverage of the 2 metre (144 - 148MHz) and 70cm (430 - 450MHz) bands and is an excellent choice for base station use. Hey everybody! In today's video we are going to take a short look at the Alinco DJ-G7T Triband Handheld Transceiver! this neat little radio works on 144MHz, 440 MHz and 1. This link is listed in our web site directory since Tuesday Jun 16 2015, and till today "Tri-Band J-Pole " has been followed for a total of 1308 times. Create a wireless network for your office with a wireless access point. Join Facebook to connect with Larry Pierce and others you may know. I wouldn’t recommend using a counterpoise on an HT. Waldman, G. These antennas are vertically polarized, covering basic 2m and 70 cm simplex and. Cell Phone Signal Booster Antenna for Verizon GSM 3G 4G LTE - Tri-band 700V/850/1900MHz Cellular Repeater Boost Band 2/5/13 Voice and Data for Home and Office Cover Up to 4,000Sq Ft Area. 85 - Backpack J-Pole Antenna for 10m, 6m, 2m. It was designed and patented by Dr. For UHF/VHF antennas, higher is better, so I knew I wanted to do a rooftop install. J-pole antenna design calculator, K4ABT: J Pole Antenna dimension calculator: Log periodic dipol array: Log Periodic Dipole Array, LA8OKA: Loop Antenna Dimensions, ON6WG: Logarithmic Periodic Dipole Antenna Calculator: Magnetic Loop Antenna Calculator: Quad Antenna JavaScript Calculator, KD4SAI: Radio link budget calculator: Return Loss. 11b, Wireless Networking Bridge, Wireless-G Access Point, Wireless Access Point with fast shipping and top-rated customer service. 200 matches. Built out of heavy duty 3/16" angle aluminum, UHF SO-239 connector with 3/8 aluminum elements and all stainless steel hardware. This calculator can be used to design a Slim Jim or a J Pole antenna. To get a direct and very informative view of the KX1 function, look at the KX1 quick. X50A DualBand Base / Repeater Antenna - An excellent choice where ruggedness is required in a medium-gain, dual-band application. Cell Phone Signal Booster Antenna for Verizon GSM 3G 4G LTE - Tri-band 700V/850/1900MHz Cellular Repeater Boost Band 2/5/13 Voice and Data for Home and Office Cover Up to 4,000Sq Ft Area. Antennas & Antenna Accessories Audio & Video Fittings Audio Flag Pole Decorative Banners & Windsocks Flag Kits Band Saws Circular Saws Cordless Jobsite Radios. VHF ¼ wave mobile VHF rubber duck Standard VHF J-Pole Dual Band J-Pole-24. J-Poles are 1/2 wave, so they do not require a ground plane. A J-Pole Antenna for the 28Mhz (10m) Amateur band. 0 GHz SP8T Antenna Switch Applications · Any 2G/3G/4G antenna , J-STD-020) Description The SKY13418-485LF is a Single Pole, Eight-Throw ( SP8T ) antenna switch. DBJ-2 Ed Fong 12/14/2013 1of 27 VHF/UHF Dual Band J-Pole By: Ed Fong WB6IQN email: [email protected] The top part of the main element was the 70-cm j-pole and was fed via coax through the main element. • Standing Wave Ratios (SWR) - An efficiency measure showing the relative size of reflections and their impact on the power of the antenna. • Ability to climb from 35 meters monopoles up to 120 meters towers. Each antenna pattern file uses a. 20 meter J-Pole antenna This article describes the construction of a 20 meter J-Pole ham radio antenna. Simple J-Type 10m Vertical by W6IOJ, Sept. It is a Zeppelin antenna invented before the radios and electronic valves, when transmitted and received with telegraphs to spark. By definition, an antenna's resonant point will be when the reactive component (j) is equal to zero (X=Ø, or +jØ). Since I had a Metal Fabrication background, I thought this would be an easy build. 25-meter (tri-band). - Coach Helder (W2NTC) reviews the 2m 70cm roll up slim jim/ J-Pole antenna by Nelson Antennas. Forrest Cook WB0RIO It is possible to get a 1:1 SWR reading with this antenna. B1883 - B1883 tri-sector standoff chainmount, MOUNTS TO ROUND POLE UP TO 3' DIAMETER, TOWER MOUNTS B1888 - B1888 5 cushion, 8 snap-in 1 tier, TRAPEZE SUPPORT KIT, FOR 2' OR 3' WIDE SUPPORT BRIDGES B1889 - B1889 10 cushion or 16 snapin 2 tier, TRAPEZE SUPPORT KIT, FOR 24" WIDE SUPPORT BRIDGES. A 2/3/3 Element Tri-band Interlaced Yagi Antenna for the 10, 15 and 20m bands. DISH Network is now offering over 375 channels, and with the launch of the EchoStar VI satellite in the summer of 2000, DISH Network is adding many more channels to become the first TV provider in the nation to offer 500 channels using a single dish antenna pointed at both 110 degrees West Longitude and 119 degrees W. The first antenna (aside from the obligatory ground-plane and j-pole) that I constructed was the moxon rectangle. VHF ¼ wave mobile VHF rubber duck Standard VHF J-Pole Dual Band J-Pole-24. Harris - Stack tri band J-pole QST 1980 Suffers the same problem of 2 mt section radiating at UHF. 71 - Tower Pole as a Vertical Antenna for 80m. Product Description. For UHF/VHF antennas, higher is better, so I knew I wanted to do a rooftop install. Three-Wire Dipole Antenna. One comment I must make after looking at your install of the J-Pole is, replace the side eve mount with a roof top tri-pod. The copper pipe J-Pole matching section would be exposed to the The DBJ-1: A VHF-UHF Dual-Band J-Pole Searching for an inexpensive, high-performance dual-band base. If you have any questions or see something on the list call us now 903-737-0773. After trying out a dipole on 20 meters I decided to construct a tri-band dipole made up of three dipole into a single feed line. SC-TriAH/O-72-YP-KIT. I tried his tri-band End-Fedz and it worked great. If mounted, maximum power is 150 watts. com FREE DELIVERY possible on eligible purchases. 2m/70cm Dual Band J-Pole by KK4ICE. If you have any questions about this project, contact [email protected] My name is Michael, KB9VBR, and I carry a full line of VHF and UHF antennas for sale. The versatility of the J-mounts angled brace allows it to be used as a wall mount, roof mount, and under-eave mount. They also appear in the ARRL VHF/UHF Antenna Classics, ARRL Vol 8 Antenna Compendium, ARRL Vol. I used a J-pole for many years when I first got my amateur license. The design has transmogrified into a family of antennas including a 5-band version (20-17-15-12-10m), a WARC version (30-17-12m), and. For UHF/VHF antennas, higher is better, so I knew I wanted to do a rooftop install. 20 meter J-Pole antenna This article describes the construction of a 20 meter J-Pole ham radio antenna. My next purchase for it is a dual-band mag-mount antenna for my vehicle. Performance is equal to a J-pole, but it's smaller, less obtrusive and more. There were a few goals for this antenna. If a directional antenna is used, it will need to be correctly aligned so it is pointing toward the TV stations you are trying to watch. Harris ‐Stack tri band J‐pole QST 1980 Suffers the same problem of 2 mtsection radiating at UHF. 25-meter (tri-band). To construct the antenna, first select a suitable length of grey 25mm conduit (as a minimum 1m but if you make it longer, you will have more room below the coil to attach to your antenna support). The antenna theory is logical, but didn’t work for me in practice. For the best results and lower flat SWR throughout the bands, use RG213 or better and cable lengths to match your frequency. Handmade Slim Jim Antenna's by N9TAX Let me start by saying that since discovering the slim jim antenna design I have really come to respect these antennas. This antenna has been fully tested to 150 MPH winds using Lowe's 23990 and 3/4 inch pvc pipe. Follow these simple plans to build a multiband shortwave antenna and be on your way to world band radio excitement!. version of the V2000 Tri-Band Antenna. These products can boost performance indoors or outdoors by finding signals in the atmosphere. Phoenix VHF/UHF JPOLE Base Antenna 2M/70CM 143-149 MHz + 437-450 MHz. I have been using a Yaesu VX-7R and had good reach with a rollup J-pole but wanted to set up a base station with a Yaesu 857D and hardwire some antennas, a dual band 2m/70cm and HF to start. The antenna would employ no downtilt, would be. 4x4 MIMO high-band. 2M/440 MHz Dual Band Copper J-Pole From N7QVC 432 8 Element Quagi Antenna By N2KBK 440 MHz -- 2 Element & 4 Element Yagi's - From The Antenna Elmer Super J-Pole Antenna (Collinear Design) - By KB0YKI U HF EggBeater Antenna - From ON6WG / F5VIF 432MHz 8 Element Quagi Antenna-- By IK1HGE 900 MHz Antennas Cheap Yagi Antennas for VHF/UHF-- From. com in a single category. A True Plumber's Delight for 2-Meters - An All-Copper J-Pole ARRL Antenna Compendium Volume 4, pp. Other very good "J" antenna designs published in 73 Magazine have been; Copper Cactus (2m) J-Pole by KE7AX, February, 1992. Your source for 6m antennas and related accessories including 6m quarter-wave and half-wave vertical antennas, repeater antennas, and high performance and heavy-duty yagis, from our inventory of antennas, antenna parts, and antenna accessories for amateur radio and other radio applications. Actual receiving distance will vary based on transmitting power, transmitting antenna tower height, lobal pattern of transmitter, height of receiving antenna, weather trees, buildings, hills, mountains, etc. 5-57MHz! Antenna has a SO-239 UHF Female termination. for 40 years. Previously N1JIK. VHF ¼ wave mobile VHF rubber duck Standard VHF J-Pole Dual Band J-Pole-24. On the right hand picture the house with the 2m beams and in the garden the 20m pole with the H. Coil-shortened dipole antenna calculator. TWIN-LEAD J-POLE VHF ANTENNA This is a design from an article by W9VZR in 73 Magazine ©, August 1977, P. My name is Michael, KB9VBR, and I carry a full line of VHF and UHF antennas for sale. It is optimised for portable use, being constructed from fibreglass and wire. important because if the mast extends above the antenna ground plane it will affect the performance of the antenna. 10M Homebrew J-Pole for VHF/UHF op RS Dual band magmount antenna Low profile. While all the designs performed well, each had shortcomings. The 'J-Pole' Antenna consists of a half wave vertical radiator and an adjacent quarter wave tuning stub which forms the classic 'J Shape'. I used a J-pole for many years when I first got my amateur license. using a double male connector I hook it directly into my LDG qrp auto tuner and it works fantastic for me… Normally use the antenna helically wound around a 31 foot mfj pole or in a sloper configuration is the trees cooperate 73bob. And yes, it's almost 50 feet long. Auction from over 3500 Auction Companies Nationwide. SMA male / BNC female with 10 inches of RG-174 coax 50 ohms, highest quality! These strain-relief cables are designed to prevent damage to the antenna connectors of handie talkies when connecting to. Satellite Mount - Pole stand mast - Dish Network KU Band C Band Directv Tripods, roof mount, towers, and universal wall mount. I tried his tri-band End-Fedz and it worked great. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable ‘roll up’ antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. com <<<< Cell Phone Amplifiers > Building Fixed Mount Amplifiers - Boosters > Large Areas - Building Boosters > TriFlex-A Yagi/Panel Kit - 72dB tri-band AT&T manually adjustable booster kit for areas up to 6,000 sq. antenna & ino. It has long been known that a 40m antenna will also work on 15m. Check our auctions HERE. Waldman, G. The V2000A utilizes a linear phase shift design to couple the different frequency band sections together. Open Stub J-Poles Click on the Links below for some other J-Pole Antenna resources: John KF7OTE. QST February 2003 and QST March 2007, CQ Summer 2012). These products can boost performance indoors or outdoors by finding signals in the atmosphere. The first antenna (aside from the obligatory ground-plane and j-pole) that I constructed was the moxon rectangle. All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. Ed sells these antennas on ebay for $37. I started thinking that I was sitting atop a 30 year old TV tower. A J-pole radio antenna provides you with the reliability that you need for consistent sending and receiving of radio transmissions over amateur and professional frequencies. The smart antenna supports automatic switching between Wave 1 and Wave 2 modes. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable 'roll up' antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. 2m J-pole antenna is my recommendation. Szatkowski , and W. 222-225 MHz amateur primary exclusive; 219-220 MHz secondary. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. Have asked Opek about it. World's Largest Supplier of Amateur Radio, Ham Radio, and Communication Equipment. A great solution for strong and reliable WiFi coverage in your RV, Boat, or Outbuilding!. using a double male connector I hook it directly into my LDG qrp auto tuner and it works fantastic for me… Normally use the antenna helically wound around a 31 foot mfj pole or in a sloper configuration is the trees cooperate 73bob. 2 Meter / 220 / 440 Tri Band - 66 inches, 38 oz. on all models except the 2M/440 and Tri-Band where the 440 MHZ SWR is approximately 1. 87 - Capacity Tuned Folded Loop Antenna for 20m. I had one of these before and it was a great antenna for working local 2M/440 communications. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. High isolation and high linearity double‐pole double‐throw CMOS switch matrix for Ka‐band wireless transceiver front‐end IC. Facebook gives people the power to share and makes the. · VE7BQH 6M Antenna Comparison Table - 12 Jun 2012 - Over the last quarter century, antenna performance has improved. Here is the first post in this blog on MFJ-2220 and MFJ-2240 dipoes on 38ft/10+m Max-Gain fiberglass pole I use. NH7RO Ham Member QRZ Page. MFJ-1720S is a 5/8 Wave on 440 MHz to give you a hearty 3. Tri-Band J-Pole. Many of the world’s best known aircraft, including the F-35 and all Airbus platforms, feature Cobham technology. Diamond F22 restoration by capacitor replacement; Enabling battery status on NanoVNA. Your source for 6m antennas and related accessories including 6m quarter-wave and half-wave vertical antennas, repeater antennas, and high performance and heavy-duty yagis, from our inventory of antennas, antenna parts, and antenna accessories for amateur radio and other radio applications. From internet in the sky through to jamming and missile guidance for the latest fighter aircraft, Cobham has an innovative suite of avionics, communication and navigation products for an. The problem is, if you place your 40m resonance in the middle of the band, the 15m resonance is too high. This link is listed in our web site directory since Tuesday Jun 16 2015, and till today "Tri-Band J-Pole " has been followed for a total of 1308 times. dish antenna cn a freestanding support pole fraue proposd jno. Parts needed 10 ft of ½ copper pipe (3) “T” Fittings (3) M to F 90 degree elbow fittings (1) reducing fitting (3) feed lines of 50 ohm coax V. using a double male connector I hook it directly into my LDG qrp auto tuner and it works fantastic for me… Normally use the antenna helically wound around a 31 foot mfj pole or in a sloper configuration is the trees cooperate 73bob. If you have special requirements, custom flagpoles or custom configurations, call or email us. 2m J-pole antenna is my recommendation. The combination of the ATAS-100 and a good dual band 144 / 440 antenna works FB. The KXB3080 band module adds the 30 and 80 meter bands. SMA Type connector ; Height: 14 3/4 inches ; Transmit range 144-148, 222-225, 440-450. QST February 2003 and QST March 2007, CQ Summer 2012). Hams in Action. Comet Tri-Band VHF/UHF Base Vertical Antennas provide great gain figures on several bands. I specialize in a certain type of antenna called a J-Pole. Configuration is about 15W into a 9dbd antenna and covers from about Arbuckle north to Shasta! There is a reduced coverage area between the north end of Red Bluff and Anderson. One comment I must make after looking at your install of the J-Pole is, replace the side eve mount with a roof top tri-pod. TRI BAND 2 METER / 220 / 440 flexible base loaded telescopic antenna is the standard for field use whether in the countryside or city. · Copper Cactus (Multi-Band J-Pole) With Drawings · COPPER CACTUS Antenna · Copper Cactus J-Pole antenna-- Plans for 1265MHZ -- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 435MHz-- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 223. CONNECTOR END POWER POLE DUAL BAND HT 144/440 DUAL BAND HT 144/220/440 TRI BAND HT 50/144/440 TRI BAND HT 144 MHZ BASE 50 MHZ BASE 28 MHZ Antenna Tuner. Everything You Need to Know About Choosing a J-Pole Antenna. 3 dB -45 dB -38. Although this design has been around for a long time, it is only gaining popularity now due to the recent improvement in high power antenna tuners. Flagpole Warehouse carries a large selection of residential and commercial flagpoles and accessories. Reduce precipitation static and lower background noise with the Tram Amateur Dual-Band Antenna. Find Comet Mobile VHF/UHF Tri-Band Vertical Antennas SBB-224 and get Free Standard Shipping on orders over $99 at DX Engineering!. Assembly & Tuning The TBJ-1 is shipped fully assembled and ready to install. com offers the best prices on computer products, laptop computers, LED LCD TVs, digital cameras, electronics, unlocked phones, office supplies, and more with fast shipping and top-rated customer service. A 524 GHz Polarimetric Compact Range for Scale Model RCS Measurements (pdf) 84. installed in MFJ-347 mount. Antenna Stock Diamond OPEK HVU-610 Tri-Band 52/146/440 MHz Fold-over Antenna w/ NMO Mount. If a need arises to work on low HF bands, such as 7, 3. 28 "Pole Attachment" means each communications wire or line attached to a pole, including, but not limited to, cables and service drops. V2000A Base antenna, 6m/2m/70cm, UHF, 8ft Save on Quality Tripod by AmazonBasics: Comet GP-15 Tri Band 52/146/446 MHz Vertical Base Antenna. 6 GHz for wireless application. new featured article. Hey everybody! In today's video we are going to take a short look at the Alinco DJ-G7T Triband Handheld Transceiver! this neat little radio works on 144MHz, 440 MHz and 1. The antenna theory is logical, but didn’t work for me in practice. A True Plumber's Delight for 2-Meters - An All-Copper J-Pole ARRL Antenna Compendium Volume 4, pp. This is where the term "Dual Band" comes from. The great thing about J-Pole antennas is their simple design and excellent performance. Kushmanda Saurav, Debdeep Sarkar, Yogesh Pal Singh and Kumar Vaibhav Srivastava , "CRLH TL-Unit Cell Loaded Tri-Band Circularly Polarized Crossed Dipole Antenna," in Twenty Second National Conference on Communications (NCC), IIT Guwahati, March 4 - 6, 2016. The idea of a folding version of the copper antenna appealed to me. I have tested single-band J-Pole con-figurations constructed from copper pipe, 450 Ω ladder line, and aluminum rod. Find pipe clamps to fit pipes up to 8?. Internal GNSS Antenna GNSS Receiver Versatile High Performance Geodetic Antenna Antenna Type Microstrip (Zero Centered) Ground Plane Antenna on a flat ground plane LNA Gain 32±2 dB Total 864 channels: all-in-view (GPS L1/L2/L5, Galileo E1/E5A/E5B, GLONASS L1/L2/L3, QZSS L1/L2/L5, Beidou B1/B2, SBAS L1/L5) integrated receiver, rugged magnesium. Specifications: Overall Length: 4 feet, 50 ohm feed impedance, no ground radials. Satellite Mount - Pole stand mast - Dish Network KU Band C Band Directv Tripods, roof mount, towers, and universal wall mount. 84 - Mini-Horse Yagi Antenna. I've constructed a 144/440 Dual band Open Stub J-Pole Antenna. Sure Call Fusion5s is a new version of previous SureCall TriFlex home signal amplifier. Auction from over 3500 Auction Companies Nationwide. Tri-Band 6M/2M/440MHz mobile antenna, black anodized. Put a bucket full of stones/concrete with a pipe sticking up. Going back to the basics, I search the literature and only came up with one Tri-Band (2 meter, 220 MHz and 70cm meter) antenna by J. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable ‘roll up’ antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. Features: Fiberglass randome Stainless steel hardware Wide band performance Factory adjusted - no tuning required Hig. Tri-band small monopole antenna based on SRR units Gehan Shehataa, Mahmoud Mohannab,*, Mohammed Lotfy Rabeha aElectrical Engineering Department, Shoubra Faculty of Engineering, Benha University. The addition of the extra. The KXPD1 clip-on keyer paddle is designed for the KX1 and it can be set for both left- or right hand use. Either a small directional antenna or an omnidirectional antenna can be used in the limited space of an attic. Jeffrey NT1K. A number of the pole-to-pole antenna wires were still in place when I visited the site 64 years later! Another northern-California LFR commissioned during 1944 served the Alturas Army Airfield. I specialize in a certain type of antenna called a J-Pole. One comment I must make after looking at your install of the J-Pole is, replace the side eve mount with a roof top tri-pod. Actual receiving distance will vary based on transmitting power, transmitting antenna tower height, lobal pattern of transmitter, height of receiving antenna, weather trees, buildings, hills, mountains, etc. 25m and 70cm; Build a 2-Meter Vertical Dipole Array; My Youtube. [email protected] Simple J-Type 10m Vertical by W6IOJ, Sept. SatelliteDish. After the house was built and worked some small contests with the existing portably wire antennas, 2007 the desire for swivelling multiband HF antenna arose. 2M/440 MHz Dual Band Copper J-Pole From N7QVC 432 8 Element Quagi Antenna By N2KBK 440 MHz -- 2 Element & 4 Element Yagi's - From The Antenna Elmer Super J-Pole Antenna (Collinear Design) - By KB0YKI U HF EggBeater Antenna - From ON6WG / F5VIF 432MHz 8 Element Quagi Antenna-- By IK1HGE 900 MHz Antennas Cheap Yagi Antennas for VHF/UHF-- From. Building the Antenna I like the copper J-pole, so I started a design using that antenna as a model. Can the popular DBJ-1 dual band base antenna be adapted to also work at 220 MHz with minimal changes and no degradation of performance at 2 meters and 70cm? Review of the Literature J. Callsign changed to AJ1F on 12/31/2010. All you need to do is enter the desired resonant (center) frequency in the form below, then click "Calculate". Ed Fong (WB6IQN). 160 Meter off-center feed / Tri-band Fan Di-pole Antenna (home brew). If your antenna is shorter than 9 feet long, you can tune it by winding a coil around the pole. You will be proud to purchase, own and use a RadioWavz antenna. The Tri-band J-pole by KB6EPO III. · Copper Cactus (Multi-Band J-Pole) With Drawings · COPPER CACTUS Antenna · Copper Cactus J-Pole antenna-- Plans for 1265MHZ -- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 435MHz-- By KG0ZP · Copper Cactus J-Pole antenna-- Plans for 223. I had one of these before and it was a great antenna for working local 2M/440 communications. Q: I built the dual-band J-pole antenna from the article in the September 1994 New Ham Companion (“An Easy Dual-Band VHF/UHF Antenna,” page 61), but I just can’t get it to work. In the process, you'll discover that there were a number of things I didn't know when I made this video. If mounted, maximum power is 150 watts. I've used a very nice tri-band commercial antenna and I'm hooked! My j-pole works good on 2m and OK on 70cm, but the swr on 220 is 3:1! I have a triplexer so I. Product Description. The SVN-32 beach volleyball net is designed for a 30′ X 60′ sized court and features 4″ mesh bordered by a 3″ band. MPS Pole Line Hardware is designed and manufactured primarily from specially selected steel, or ductile/malleable iron castings with chemical and physical properties most suitable for product performance and applications in which. The antenna I constructed was made of 1/2" tubing. Took a flight today on one of the EAA's 1929 Ford Tri-Motor aircraft. SMA Type connector ; Height: 14 3/4 inches ; Transmit range 144-148, 222-225, 440-450. He discusses indoor and outdoor use for emergency and preparedness communication. It delivers a reasonable match on Best 144/420 antenna for attic installation? commercial tri-band antenna. Copper Dual-Band Super J-Pole Antenna by KA0NAN, April 1993. If you have any questions or see something on the list call us now 903-737-0773. So whatever band you operate on, if your antenna is a Larsen you'll HEAR the difference! ~sen AntennaS. This is a GREAT little antenna for performance. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. We produce our own line of antenna cables and perform custom-manufacturing of antennas. 3 dB -45 dB -38. In the process, you'll discover that there were a number of things I didn't know when I made this video. Goal is to design a dual band J-pole but without the loss ; New design must be simple, reproducible, no radials due to wind load. It will have a decent SWR "somewhere" within the 15m band. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. The resonators and fiberglass whip antennas use a standard 3/8-24 threaded. Features: Fiberglass randome Stainless steel hardware Wide band performance Factory adjusted - no tuning required Hig. World's Largest Supplier of Amateur Radio, Ham Radio, and Communication Equipment. Installing a 1/4 wave on 10 different vehicles will create 10 different SWR results. The Watson base station antennas have earned themselves an enviable reputation, offering both value for money and excellent performance. VHF ¼ wave mobile VHF rubber duck Standard VHF J-Pole Dual Band J-Pole -24. This is a SOLAR powered site, that's why the low output power. All band means it covers HF/VHF/UHF and will not cover all the baofeng frequencies unless you get the MARS mod. Buy ANLI DC-124H TriBand 2M-222-440Mhz NMO Mobile Ham Radio Antenna: Radio Antennas - Amazon. I thought I would put up how I am approaching for the dual band. Most co-linear, ground-plane antennas have plenty of gain. 3 Antenna Compendium. The LPFs used here, were selected by the antenna in use; a 20-15-10 m tribander. Parts needed 10 ft of ½ copper pipe (3) "T" Fittings (3) M to F 90 degree elbow fittings (1) reducing fitting (3) feed lines of 50 ohm coax V. Can the popular DBJ-1 dual band base antenna be adapted to also work at 220 MHz with minimal changes and no degradation of performance at 2 meters and 70cm? Review of the Literature J. Tri-Band VHF/UHF Antenna Plans. A shortened multi-band End-Fed Half Wave (EFHW) antenna for 80-10m Steve Nichols G0KYA A shortened multiband antenna, about 23m long, for 80m-10m that offers low SWR (1. This is a GREAT little antenna for performance. The antennas listed below are available in the Antenna Magus database. If you have any questions about this project, contact [email protected] It is a tri-band radio that allows me to hit every repeater in town on 2m and 70cm. If any of you gents has a set could you buzz me a set? Contact: craigv "at" sprintmail. This is the famous DBJ-1 dual band J-Pole antenna, designed and sold by Ed Fong - WB6IQN. The wire F-type antenna was invented in the 1940s. To get a direct and very informative view of the KX1 function, look at the KX1 quick. 84 - Mini-Horse Yagi Antenna. It was a stacked Tri-band J-pole antenna as shown in Figure 4. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable ‘roll up’ antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. World's Largest Supplier of Amateur Radio, Ham Radio, and Communication Equipment. In the early Fall of 1999, I was sitting astride the tri-band beam at 90 plus feet, while working on the TV antenna over my head. 5MHz -- By KG0ZP. J-pole 145/220/440Mhz Tape Measure 2M Beam + Offset Attenuator This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and ¼ stubs to achieve low angle radiation pattern. SWR has been shown to be approximately 1. SureCall Fusion 5s Voice, 3G, 4G LTE 5G-E Home/ Building cell phone booster is a high performance signal booster kit for whole home or office up to 7,000 sq. After evaluating several commercial options he selected the Arrow OSJ 146/440 J-Pole antenna. It has long been known that a 40m antenna will also work on 15m. Might be a good solution for you. The copper pipe J-Pole matching section would be exposed to the The DBJ-1: A VHF-UHF Dual-Band J-Pole Searching for an inexpensive, high-performance dual-band base. Now the antenna current can flow from one side of the antenna to the other, without having to involve the coax shield. Dont Forget we are cash buyers for Used Ham Radio Gear. Tri-band Delta Loop Antenna for 80m - 40m - 30m Dual-band Loop Antenna for 30m - 40m Wire-Beam Antenna for 80m Dual-Band Sloper Antenna Inverted-V Beam Antenna for 30m ZL-Special Beam Antenna for 15m Half-Sloper Antenna for 160m Two-Bands Half Sloper for 80m - 40m. installed in MFJ-347 mount. • MiRaTA (Microwave Radiometer Technology Acceleration), a 3U CubeSat of MIT (Massachusetts Institute of Technology), Cambridge, MA, USA. (Note: remember that the frequencies are also known as bands ) Dual Band - Tri Mode and Tri-Band Phones. We have moved the Home Brew section to the side bar to make it easier to find, and also listed our complete range of Drawn Aluminium tube. MFJ-1720S is a 5/8 Wave on 440 MHz to give you a hearty 3. Your Subtitle text. Tri-Band J-Pole. 1) An outdoor or indoor FM antenna, or 2) a cable in-put from your local cable company. A novel stacked patch antenna with dual band and diverse pattern characteristics Tri‐section stepped impedance resonator with adjustable length and improved. 84 - Mini-Horse Yagi Antenna. On 2 Meters you get a 1/4 Wave antenna with 2. Excellent tri-band antenna Time Owned: 0 to 3 months. Can carry up to 60pounds weights of materials while climbing on towers. The antennas listed below are available in the Antenna Magus database. 25-meter (tri-band). I wouldn’t recommend using a counterpoise on an HT. develops and manufactures quality innovative microwave products to meet the unique requirements of our customers. And yes, it's almost 50 feet long. This super efficient VHF / UHF antenna provides a OMNI directional 3 to 9 db gain depending on position and is usable in 4 positions. This link is listed in our web site directory since Tuesday Jun 16 2015, and till today "Tri-Band J-Pole " has been followed for a total of 1308 times.