Gmrs Slim Jim Antennadirectional wifi antenna 5ghz Wanted - 6x6 8x8 10x10 Post or Beams - $1 (Kansas City Area) QR Code Link to This Post Shop 4-in x 6-in x 8-ft Pressure Treated Rough Post Lumber at. New 2 Meter 70Cm VHF / UHF Dual Band Antenna K5BJM Base or Portable Slim Jim $36. 04 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 10' Coax! $28. 04 shipping Image not available Hover to zoom. PDF Build the Slim JIM Antenna. Dual band MURS / GMRS Slim Jim Antenna with 10' or 16' Cable. The super efficient synthetic-rubber dipped NT-MIL cover and flex cable matching network with 50 W power handling and 50 Ohm impedance insure durability, high. 99 Tram 1126 UHF Antenna 410-490 MHz From $11. The larger the wire, the wider the bandwidth. A Slim Jim antenna is basically similar to a Jpole design, but it exhibits a lower radiation angle in the range of 8-10 degrees on the horizon, compared to 1/2 wave Jpole which exhibits a 20-30 degree angle on the. New 2 Meter 70Cm VHF / UHF Dual Band Antenna K5BJM Base or Portable Slim Jim. Antennas by KM4HLF Base Station J. 2 meter J pole & 70cm Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING. Asked by fremont, August 5, 2020. A Slim Jim antenna is basically similar to a Jpole design, but it exhibits a lower radiation angle in the range of 8-10 degrees on the horizon, compared to 1/2 wave Jpole which exhibits a 20-30 degree angle on the horizon. The Survival Antenna Turns Your Portable Hand Held or Vehicle Ham Radio Into a Survival Tool Choose The Right Adapter for Your Radio. 3-Inch Whip GMRS (462MHz) Antenna SMA-Female for BTECH and BaoFeng Radios 418 $2098 $26. Never transmit without an antenna. This Smiley Antenna Slim Line Whip 465MHz GMRS & NOAA Antenna will make your GMRS radio sing! Has a 6″ radiating element and. Fong created for the Ham Radio world with his DBJ-1 dual band J-pole, this antenna is measured and tuned for the GMRS band around 462-467MHz. An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable. com: slim jim antenna 1-16 of 121 results for "slim jim antenna" RESULTS The Survival Antenna Turns Your Portable Hand Held or Vehicle Ham Radio Into a Survival Tool Choose The Right Adapter for Your Radio SMA Female Fits Radios Wouxum Any Tone Baofeng 176 $6995 FREE delivery Oct 26 - Nov 1 Or fastest delivery Oct 24 - 26. arizona's adventures, gmrs antenna, baofeng, how to build a gmrs antenna, how to build slim-jim antenna, home brewed antenna, home brewed gmrs antennas, baof. Apr 08, 2021 · One of the best, and most affordable, antennas for GMRS base station operation is the Ed Fong J-pole. La antena Slim Jim fue inventada por Fred Judd (G2BCX, 1914-1992) como una variante mejorada de la antena J-pole. arizona's adventures, gmrs antenna, baofeng, how to build a gmrs antenna, how to build slim-jim antenna, home brewed antenna, home brewed gmrs antennas, baof. Antenna is tested at 100w Antenna is fabricate using a female "N" type connector bolted (not welded or riveted) to the copper pipe. Slim Jim, by his definition, is any half-wave dipole antenna fed with a quarter-wave stub with the feedline across a portion of the stub to find an optimal impedance - this includes the traditional J-pole, Zepp, etc. The length of the antenna is three quarter wavelength. Super-J antenna. About Slim Jim antennas. You could probably build this yourself if you were careful enough. Slim Jim, by his definition, is any half-wave dipole antenna fed with a quarter-wave stub with the feedline across a portion of the stub to find an optimal impedance - this includes the traditional J-pole, Zepp, etc. DBJ-1 (ham) dual band base antenna (144-148 MHz and 440-450 MHz) Maximum power input 75 watts. $ Since our MicroMobiles include “plug and play” antennas (excluding MXT400) that work straight out of the box, you don’t need to. GMRS J-Pole antenna UHF radio 462mhz. I purchased the antenna directly from his website . For sale this J-POLE antenna cut to theFMR/GMRS radio band (462 to 467 Mhz) Constructed using 1/2" cooper pipe ,all welded or soldered SWR is 1. Apr 08, 2021 · One of the best, and most affordable, antennas for GMRS base station operation is the Ed Fong J-pole. The length of the antenna is three quarter wavelength. How To Build GMRS SLIM JIM ANTENNA, BAOFENG. The J pole antenna is notorious for the development of common mode current on the coax. J POLE ANTENNA DESIGN CALCULATOR by K4ABT. 00; UHF 440-470 MHz Slim Jim Antenna $ 42. 95 Midland MicroMobile MXTA26 6dB Gain NMO Antenna $59. SLIM JIM ANTENNA 2 Meter 70 Cm VHF / UHF DUAL BAND ANTENNA ( NEW ) Sponsored $36. Check out the website and product tour video! New! HF Ladder Grab antenna kit. Nagoya 701 replacement handheld/portable antenna - less than $10 - one for each radio that will be used in a portable application, plus some spares Tram 1185 or other mobile antenna - about $30 - one for each vehicle that will have a radio in it, plus some spares, plus connector adapters as needed to match antenna connector to radio connector. This is a full Power UHF/ GMRS antenna that will work great. Slim Jim / J Pole Antenna Calculator. 50 Increase your handheld's UHF performance with this highly tuned semi-flexible Smiley Antenna Slim Duck GMRS antenna. 04 shipping 503 sold Dual Band Fiberglass Mobile Radio Antenna,Uhf VHF 144/430Mhz GMRS Base Antenna 1 $35. Or fastest delivery Thu, Oct 27. The N9TAX VHF Slim Jim against a reference dipole. N9TAX SlimJim – a classic dipole where you want it The N9TAX single band antenna has no conductive mounting structure to worry about. Image courtesy of WikiPedia J-Pole Antenna. Since the plain coax was also our calibrator, its transmission in green shows a nice flat line from 10 to 500 MHz. It was called "Slim" because the antenna does not need a radial to throw signals. 2 meter J pole & 70cm Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING. Smiley Antenna Slim Duck 465MHz 5/8 GMRS & NOAA SMA. mh sensor series flying fish. This Smiley Antenna Slim Duck 465MHz 5/8 Wave GMRS & NOAA Antenna will make your GMRS radio sing! Has a 4″ radiating element and. Nagoya NA-701G FRS/GMRS Antenna $15. slim jim antenna. Dipole Antenna Calculator. Building J-poles and Slim Jim antennas out of 1/2 inch copper pipe, is a good choice as the build is rugged and reliable. still really cheap" Dave, WB5HDS Convert a J Pole to a Slim Jim More Antenna Projects! DANGER!. UHF 440-470 MHz Slim Jim Antenna. Slim Jim / J Pole Antenna Calculator Calculate the dimensions for a Slim Jim or J Pole antenna for HF, VHF or UHF - Including velocity factor! F Frikkie VD Linde 102 followers More information Slim Jim and J-Pole calculator | M0UKD Amateur Radio Station Information Page Find this Pin and more on antennas by Frikkie VD Linde. Tram 460 - 470 GMRS Base Antenna. The antenna is only 1 1/4" wide and a mere 3/8" deep. 04 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole Dual Band MURS/GMRS Antenna jpole! $26. The approximate gain in the H-plane of the Slim Jim is from 1. I purchased the antenna directly from his website https://n9taxlabs. About Slim Jim antennas. Specifically tuned for GMRS, Public Safety & Commercial LMR uses. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT 2m 70cm Antenna 16' Coax. The J-Pole Antenna. J Pole antennas are very efficient because they operate at harmonics of the fundamental or lowest frequency for which they are cut/designed. Slim Jim Antenna vs 1/4 Wave Ground Plane Results. If you need a "super" j, use a piece of 3/4" pvc as the insulator and add the stub and another 38 or so inches of conduit. I built this J - Pole antenna for GMRS radio. Larsen 450-470MHZ Load and Tip Only. I first introduced the concept of this antenna in Feb. Antenna pattern measurements. Since this coax will likely pass adjacent to your yagi, the above near and far field calculation efforts will be nullified without a proper current balun on the J pole feedpoint to. KB9VBR J Pole and Slim Jim Antennas Popular Models. The Slim Jim is a vertically polarized omnidirectional end-fed antenna having considerable "gain" and this is concentrated almost parallel to ground toward the horizon rather than skyward making it more efficient than a ground plane type antenna by about 50 percent better. S21 test results of N9TAX ferrite choke. Not sure what you need? Check out the website and product tour video! New! HF Ladder Grab antenna kit. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 10' Coax! $27. 69dB over the 1/4 wave ground plane and 3. Some background on the Slim Jim antenna. Of the 40 watts you put in, less than 6 watts will make it to the antenna. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 16' Coax! $31. 9 companies Filter your search. Radioddity RD-301 SMA-Female Triband Antenna 144-220-440Mhz HT 2M-1. Each dual band antenna tunes quite well for the 440 and GMRS bands respectively, but even a simple hand test easily reveals the existence of RF current along . With this antenna extended to the full 5/8 wave length, the clarity and signal strength was at least equal to the Slim Duck. After you overlap the wire, measure the entire length of the antenna. 05 Free shipping Only 1 left! NMO 1/4 Wave Mobile Antenna 136-940 MHZ. The N9TAX Slim Jim antenna is the highest quality roll up antenna available today. SLIM JIM ANTENNA VHF / UHF DUAL BAND ANTENNA ( NEW ). For sale this J-POLE antenna cut to theFMR/GMRS radio band (462 to 467 Mhz) Constructed using 1/2" cooper pipe ,all welded or soldered SWR is 1. Gardeon Outdoor Storage Box 490L Lockable Cabinet Container Garden Deck Toy Shed Black. arizona's adventures, gmrs antenna, baofeng, how to build a gmrs antenna, how to build slim-jim antenna, home brewed antenna, home brewed gmrs antennas, baof. Slim Jim Antenna Design Calculator. slim jim antenna. Is a rollup antenna like Ed Fong's workable with a long (30'-ish) telescoping fiberglass mast?. G0KYA slim jim antenna for 10 meters band. Amateur radio, military operators and . we are now selling our slim jim antennas at n9taxlabs 6 out of 5 stars 3 $44 ) dbj-2 (ham) dual band roll up antenna kit - (144-148 mhz and 440-450 mhz) includes adapters for bnc, sma and sma - female if you're looking for an antenna for your home base, they're cheap enough ( 462 mhz land mobile (gmrs) j-pole antenna the name slim jim was derived …. 5-Inch Length ABBREE SMA-Female Dual Band 144/430Mhz Foldable CS Tactical Antenna for GMRS Radio Baofeng Walkie Talkie UV-5R UV-82 BF-888S BF-F8HP Ham CB Two. This is a full Power GMRS antenna that will work great with handheld and base units. 00 Aviation (Airband) 118 - 128 MHz J-Pole Antenna $ 51. The antenna is only 1 1/4" wide and a mere 3/8" deep. 95 Free shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT 2m 70cm Antenna 16' Coax $31. The Slim Jim is an end fed folded dipole antenna that gives you approximately 5. 2 Meter Slim Jim antenna from Ordinary Wires Slim Jim (J Integrated Match J-Pole) is probably the most easiest and powerful 2 meter antenna to build provided you have the exact measurement and material to build it. One other thing of note on this project: When this antenna is fed with rg-58 coax ~50 feet the distant gmrs repeater I built the antenna for is unreachable. Enter the Dual Band Slim Jim Enter the Dual Band Slim Jim Enter the Dual Band Slim Jim. The antenna can easily be hung using the two loops on the back. Was going for the Midland MXT400 and a Browning 450-470MHz Omni Base Antenna. K K9WG Member Joined Nov 12, 2010 Messages 1,366 Location Greenfield, Indiana USA Mar 1, 2012 #7. Cheap and Super Effective! : r/HamRadio. The measurements below are for building a simple Dipole Antenna. One might buy their first j-pole antenna from KB9VBR on Ebay to study. The antenna can easily be hung using the two loops on the back. The single band model at its 3rd harmonic If you can deal with a bit higher SWR at the UHF frequency, this single band model will offer some capability at the 3rd harmonic for 440 operation with reduced broadside gain and significant energy both above and below the antenna’s waist. I've been producing these antennas professionally for nearly a decade now . I've got it strapped to a chimney mount. It is a practical choice for the novice or experienced antenna builder. 1/2in Type M Copper Tubing Slim Jim VHF/UHF Antenna. Andhra Pradesh CM YS Jagan Mohan Reddy to lay stone for …. This Smiley Antenna Slim Line Whip 465MHz GMRS & NOAA Antenna will make your GMRS radio sing! Has a 6″ radiating element and. Filming Location Matching "Antenna 3 Lombardia, Legnano, Milan. 462 MHz Land Mobile (GMRS) J-Pole Antenna $ 30. 00 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole Dual Band 2m 70cm Antenna jpole $26. 04 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 16' Coax! $31. Increase your handheld’s UHF performance with this highly tuned semi-flexible Smiley Antenna Slim Duck. The Slim Jim Antenna The Slim Jim is a vertically polarized omnidirectional end-fed antenna having considerable "gain" and this is concentrated almost parallel to ground toward the horizon rather than skyward making it more efficient than a. I'm eventually going to get one and probably replace my discone with it, and put the discone in the attic. #2 · Jun 2, 2017 (Edited) Well in looking at several sets of plans on a simple 2 meter J-Pole antenna from doing a quick google search, most of them follow the same physical measurements, and differ on the mounting methods of coaxial cable at the feed point. The Slim Jim variation of the J-pole antenna has characteristics and performance similar to a simple or folded half-wave antenna and identical to the conventional J-pole construction. These new GMRS antennas from Nagoya are now available for purchase, and exclusively at Buy Two Way Radios! There are currently three antennas in this series, two for. A Complete System for your Baofeng UV. NT-MIL covered steel whip with 3 dBd gain at 460-470 MHz, make this a must-have accessory for your GMRS two-way radio or SHTF scanner. Copper wire provides shorter connection between ports than the path through the VNA’s connectors. 1-16 of 121 results for "slim jim antenna" RESULTS. 00 NOAA Weather / Railroad Band 160 - 162 Mhz J-Pole Antenna $ 46. It has a PL-259 (UHF male) connector that fits any number of vehicle mounting kits that is equipped with an SO-239 (UHF. 462 MHz Land Mobile (GMRS) J. Figure 1 – RG-58 coax with and without the choke delivered with N9TAX’s Slim Jim antennas. When this antenna is fed with rg-58 coax ~50 feet the distant gmrs repeater I built the antenna for is unreachable. Need some feedback on this setup: Wanting to setup a GMRS base station. Let's take a look at the performance of this antenna today. 2BCX Slim Jim is the proper name for the j-pole antenna using a folded dipole as the half-wave radiator. 50 Increase your handheld’s UHF performance with this highly tuned flexible Smiley Antenna Slim Line Whip GMRS antenna. The NL-770G is a high gain linear mobile antenna tuned to 462MHz and 467MHz frequencies for GMRS. The ladder line may be more efficient (just a hunch), but it's much easier to tack the 300Ω twin-lead on the wall of your dorm, apartment, barracks, hotel - you name it. Find exactly what you're looking for!. Tracking generator test A portable VNA was configured to measure S21 using the arrangement of bananas in figure 2. Antenna pattern measurements. Radioddity RD-371 Tri-Band Antenna 17. 10m Slim Jim antenna. This antenna has an SO-239 connector on it which mates to a PL-259 connector. So, we are feeding this half wave antenna from a high impedance point, which needs to be matched. The NL-770G is a high gain linear mobile antenna tuned to 462MHz and 467MHz frequencies for GMRS. Ladder Maker 600 ohm ladder line building spacers. It has a PL-259 (UHF male) connector that fits any number of vehicle mounting kits that is equipped with an SO-239 (UHF female) connector or feed line, including the Nagoya RB-MJPL Mobile Mag Mount Base. One might buy their first j-pole antenna from KB9VBR on Ebay to study. Works great with the other stations as the slim jim has a lower take off angle than the j-poles, as Michael's information points out. SLIM JIM ANTENNA 2 Meter 70 Cm VHF / UHF DUAL BAND ANTENNA ( NEW …. 9 Simple J Pole Antenna Projects. 2 Pack 42. Candidly, this is more of a VHF question than a GMRS question but still applicable to UHF Looking at a field antenna (tripod, . The Wire Size can range from 16 AWG to 12 AWG. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Slim Jim Antenna - GMRS AND MURS Radios. Slim Jim, by his definition, is any half-wave dipole antenna fed with a quarter-wave stub with the feedline across a portion of the stub to find an optimal impedance - this includes the traditional J-pole , Zepp, etc. 99 Add to Cart Radioddity RD-371 Tri-Band Antenna 17. Ideal for GMRS & HAM NMO antenna installations. Nagoya NA-701G FRS/GMRS Antenna $15. Maxrad Roof Antenna Mount with Coax. 8-inch 144/430MHz High Gain Soft Whip Foldable CS Tactical Antenna for Baofeng UV-5R UV-82 BF-F8HP GMRS Radio Ham Two Way . 00 The GMRS J-Pole is tuned for maximum performance on the 462 – 467 MHz. 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. 95 Midland MicroMobile MXTA26 6dB Gain NMO Antenna $59. Authentic N9TAX VHF/UHF Slim Jim J-Pole Dual Band 2m 70cm Antenna jpole $26. Not a shill, but just wanted to share some feedback with the community — I live in a rented house and can’t put up any large antennas, and currently I’m only. A friend of mine convinced me to do this. The antenna's bright white enclosure blends right into the surroundings. Baofeng RA-MD2 GMRS Antenna. The Slim Jim antenna is an extended version of the J-Pole antenna, using the same matching stub principle. Need some feedback on this setup: Wanting to setup a GMRS base station. One of them is a county and a half over, and I'm breaking in a full S9. Smiley Antenna Slim Line Whip 465MHz GMRS & NOAA SMA. 10m Slim Jim antenna G0KYA slim jim antenna for 10 meters band SLIM-JIM 2m antenna The slim-jim antenna for 144 MHz. ARIZONA'S ADVENTURES, GMRS ANTENNA, BAOFENG, HOW TO BUILD A GMRS ANTENNA, HOW TO BUILD SLIM-JIM ANTENNA, HOME BREWED ANTENNA, HOME BREWED GMRS ANTENNAS, BAOF. Overview of build and SWR testing of N9TAX's Slim Jim antenna for MURS and GMRS. General Mobile Radio Service (GMRS) Technical Discussion. There's one listed that is dual-band GMRS and MURS that won't. On vehicles, mount your antenna as high as possible in a vertical position. It is the same antenna that appears on the front cover of the ARRL VHF/UHF Antenna Classics Handbook. The Break-a-Way Slim Jim antenna has a screw connector in the middle for easy transport and storage- yet it still retains all the performance benefits of the single piece Slim Jim antenna. For sale this J-POLE antenna cut to theFMR/GMRS radio band (462 to 467 Mhz) Constructed using 1/2" cooper pipe ,all welded or soldered SWR is 1. Nowadays it's tricky to find the 300Ω twinlead, but if you email your local ham community someone will have some. jimg said: Which of the above is better for transmitting? Please advise and thanks in advance for your help. Arrow Antenna J Poles 2m 146 70cm 440 OSJ D DaveNF2G Guest Nov 2, 2014 #4. The original idea of the roll-up J-pole was (as Dr. It is a practical choice for the novice or experienced antenna builder. Add a loop of string to the top, and hang it on a tree branch, use it with your handheld transceiver, then roll it up and put it in your pocket when done!. NT-MIL covered steel whip with 3 dBd gain at 460-470 MHz, make this a must-have accessory for your GMRS two-way radio or SHTF scanner. [24] Judd found the Slim Jim produces a lower takeoff angle and better electrical performance than a 5 8 wavelength ground plane antenna. Agriculture Minister K Govardhan Reddy said Chief Minister YS Jagan Mohan Reddy will formally dedicate the third unit of Genco thermal plant in Muthukur mandal to the nation on October 27. Slim Jim, by his definition, is any half-wave dipole antenna fed with a quarter-wave stub with the feedline across a portion of the stub to find an optimal impedance – this includes the traditional J-pole, Zepp, etc. Antenna is tested at 100w Antenna is fabricate using a. Base Antenna performance. 5/8 Wave with 6 dBd gain at 460-470 MHz, make this a must-have accessory for your GMRS two-way radio or SHTF scanner. Fong created for the Ham Radio world with his DBJ-1 dual band J-pole, this antenna is measured and tuned for the GMRS band around 462-467MHz. Smiley Antenna Slim Duck 465MHz 5/8 Wave GMRS & NOAA SMA-M. Smiley Antenna Super Stick 465MHz GMRS & NOAA+ SMA. N9TAX slim jim antennas. J Pole antenna projects. Enter Frequency (MHz) The J Pole antenna is a simplified version of the Slim Jim antenna, using the same matching stub principle. GMRS band Slim Jim antenna from N9TAX for GMRS Mobile Radiohttp://www. The 5/8 wave antenna consists of a vertical radiator which is fed at the base of the antenna. The General Mobile Radio Service ( GMRS ) is a North Ed's antenna's use twin-lead as the radiating element. 50 Increase your handheld's UHF performance with this highly tuned flexible Smiley Antenna Slim Line Whip GMRS antenna. About Slim Jim antennas. Would HIGHLY Recommend the N9TAX Slim Jim Antennas. Nagoya NA-701G FRS/GMRS Antenna. 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. 462 MHz Land Mobile (GMRS) J-Pole Antenna $ 30. 00 Our extremely popular Slim Jim Antenna is now available for the VHF 150 - 160 MHz band. The benefit of the 300Ω twinlead over the 450Ω ladder line is the. vintage cub cadet attachments dos and don39ts of hamster care. Arrow (MURS/GMRS) antenna numbers don't lie, the Slim Jim claims to have 6dB and I believe it was measured against a 1/4 wave ground plane, well I did the same test and my gain was 6. Don’t be limited in performance by VC encased wire antennas. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Telecommunications - equipment and systems (1). 00 The GMRS J-Pole is tuned for maximum performance on the 462 – 467 MHz General Mobile Radio Service and UHF public safety band. #2 · Jun 2, 2017 (Edited) Well in looking at several sets of plans on a simple 2 meter J-Pole antenna from doing a quick google search, most of them follow the same physical measurements, and differ on the mounting methods of coaxial cable at the feed point. Home; Shop; Technical Info; Contact Us. Plus the antenna also have the great low noise floor and wide bandwidth typical of our other antennas. Ham GMRS MURS 2 Way Heavy Duty Design $18. This is a full Power UHF/GMRS antenna that will work. Check out our new HF antenna building products. chevy silverado bose sound system The calculator can be used for designing a Super J-Pole antenna for just about any frequency or it can be used for the standard J Pole antenna by leaving out the top section. ABBREE SMA-Female Dual Band VHF/UHF 18. New 2 Meter 70Cm VHF / UHF Dual Band Antenna K5BJM Base or Portable Slim Jim. General Mobile Radio Service (GMRS) Technical Discussion. Authentic N9TAX VHF/UHF Slim Jim J. Slim Jim (J Integrated Match J-Pole) is probably the most easiest and powerful 2 meter antenna to build provided you have the exact measurement and material to build it. Dual band antennas feature trapped section for proper UHF alignment. Measure out and cut about 59 or 60 inches of ladder line. The length of the antenna is three quarter wavelength. Figure 2 – S21 test setup using banana plugs. DIY slim jim antenna. angels of death codex pdf. They are a little pricey, but I bet they do a nice job if you get them up nice and high. I first introduced the concept of this antenna in Feb. Joe, N9TAX presented what I thought were some really inexpensive Slim roll up antennas made from 450 ohm ladder line for 2 meters, 2/440, and other frequencies. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 10' Coax! $27. I've been producing these antennas professionally for nearly a decade now and have sold over 15000 units. Gmrs j pole antenna calculator. Italy (9) Milan and Lombardy (9) By Category. This calculator can be used to design a Slim Jim or a J Pole antenna. My home brew gmrs slim Jim antenna. Many have tried to copy this antenna over the years but none compare to the Authentic N9TAX antenna. 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. I am hitting repeaters I normally couldn't hit whatever. 99 FREE delivery Mon, Oct 31 on $25 of items shipped by Amazon Or fastest delivery Thu, Oct 27 Small Business Amazon's Choice Rugged Radios GMRS-POINT5 GMRS 14. 04 shipping Image not available Hover to zoom Have one to sell?. ed fong antenna. This in itself says something about the dedication I have to creating a quality product. Examples of these are "copper J-poles", "slim jim", "arrow". Same works on the receive side, you'll lose a lot of your received signal due to coax losses. Unobtrusive: The Blade design is very slim and stealthy. Nelson Antennas 2m rollup antenna review. Slim Jim N9TAX StationMaster Telewave TRAM Radioguy7268 Members 358 Location: Southeastern PA Posted September 15, 2019 You didn't mention what you wanted to use your "base" antenna for, or how you wanted to mount it. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 16' Coax! in Consumer Electronics, Radio Communication, Antennas, Ham, Amateur Radio . 462 MHz Land Mobile (GMRS) J-Pole Antenna $ 30. Would HIGHLY Recommend the N9TAX Slim Jim Antennas. Your shooting for 58 inches total length after stripping and overlapping the wires. Slim Jim Antennas incorporate an end fed folded half wave dipole and a quarter wave J integrated matching system. Slim Jim Antenna - GMRS AND MURS Radios. My home brew gmrs slim Jim antenna. Plus the antenna also have the great low noise floor and wide bandwidth typical of our other antennas. Calculate the dimensions for a Slim Jim or J Pole antenna for HF, VHF or UHF - Including velocity factor!. This is a full Power UHF/GMRS antenna that will work great with handheld and base units. This results in the coax becoming part of the radiating / receiving antenna. Asked by WREJ796, November 25, 2020. Enter Frequency (MHz) The J Pole antenna is a simplified version of the Slim Jim antenna, using the same matching stub principle. Ferrite choke balun installed on cable. Sylvia Walters never planned to be in the food-service business. Add a loop of string to the top, and hang it on a tree branch, use it with your handheld transceiver, then roll it up. Would HIGHLY Recommend the N9TAX Slim Jim Antennas. Variations of this antenna, are Slim Jim antenna, Super-J antenna and the Collinear J-pole antenna. Radioddity RD-371 Tri-Band Antenna 17. A J-Pole for 2-meters and 70-cm. Plus the antenna also have the great low noise floor and wide bandwidth typical of our other antennas. Specifically tuned for GMRS, Public Safety & Commercial LMR uses. Together these elements create an antenna that requires no grounding or ground plane to operate. His prices and the quality was what caught my eye. 00 Our popular Slim Jim antenna design is also available in a two piece break-away model. These are the standard style UHF connectors. There's one listed that is dual-band GMRS and MURS that won't break the bank. © Copyright 2015-2020 | All Rights Reserved | PARA. Overview of build and SWR testing of N9TAX's Slim Jim antenna for MURS and GMRS. Cheap and Super Effective! From the stock antenna to this, there's a huge difference. Enter the N9TAX line of Slim Jim antennas. Apr 08, 2021 · One of the best, and most affordable, antennas for GMRS base station operation is the Ed Fong J-pole. Was going for the Midland MXT400 and a Browning 450-470MHz Omni Base Antenna. Design and analysis of Slimjim dual band VHF and UHF antenna. Basically it is an end-fed, vertically operated, folded dipole using a 'J-type Integrated Match', hence the word J'I'M. The ferrite, for VHF at least, chokes the common mode feed line RF currents. 00 Free shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT 2m 70cm Antenna 16' Coax $31. At my house, I've got an inexpensive Ed Fong antenna that costs around $40 off eBay. External Antenna for GMRS HT. Slim Jim Antenna : Slim Jim Antenna. Need dual band GMRS/MURS antenna. This antenna design does not need a ground plane and is ideal for mounting inside PVC piping to protect it from the elements. GMRS Radios, Antennas & Mounts. Don't be limited in performance by VC encased wire antennas. Radioddity Antenna | 136-174/400-520MHz | SMA-Female. I've been producing these antennas professionally for nearly a decade now and have sold over 15000 units. This is a full Power UHF/GMRS antenna that will work. The N9TAX Slim Jim Antenna Review. 00 shipping 108 sold 2 meter J pole & 70cm Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING New $40. Most wireless communications need more than one band frequency to operate due to many reasons. It stages excellent performance when it comes to reducing the static and background noises for increased clarity in your communication. This Smiley Antenna Slim Duck 465MHz 5/8 Wave GMRS & NOAA Antenna will make your GMRS radio sing! Has a 4″ radiating element and. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local. CM YS Jagan Mohan Reddy to inaugurate 3rd unit of Genco …. This means our Slim Jm is optimized for VHF Public Safety, MURS, Marine band, and Business frequencies. Slim Jim Antenna - GMRS AND MURS Radios. If that is not an option, Use a higher grade cable. Antenna is tested at 100w Antenna is fabricate using a. 2BCX Slim Jim is the proper name for the j-pole antenna using a folded dipole as the half-wave radiator. Rated to handle up to 100 watts. Mar 3, 2008. VHF Public Safety, MURS, Marine, & Scanner Slim Jim Antenna. It radiates and receives in an omni-directional pattern. Rollup Slim Jim antenna. Roll up J pole/slim jim opinion needed. Overview of build and SWR testing of N9TAX's Slim Jim antenna for MURS and GMRS. Midland MicroMobile MXTA26 6dB Gain NMO Antenna. Let's view representative chamber measurements of another SlimJIM and a J-pole antenna. It can be built for almost any frequency!. 5-Inch Length ABBREE SMA-Female Dual Band 144/430Mhz Foldable CS Tactical Antenna for GMRS Radio Baofeng Walkie Talkie UV-5R UV-82 BF-888S BF-F8HP Ham CB Two Way Radio Transceiver (42. The J Pole antenna is a simplified version of the Slim Jim antenna, using the same matching stub principle. Don't be limited in performance by VC encased wire antennas. General Mobile Radio Service (GMRS) Technical Discussion. UHF 440-470 MHz Slim Jim Antenna. 04 shipping Hover to zoom Have one to sell?. The N9TAX Slim Jim antenna is the highest quality roll up antenna available today. Are you looking for a UHF omni antenna with a little more gain? Our UHF Slim Jim. External Antenna for GMRS HT. G geotornadic Member Joined Dec 29, 2011 Messages 8 Location ashland, wi Nov 2, 2014 #3 I've always been intrigued by open stub j-poles but have never tried one. So if you are looking for a high performance antenna system, don't skimp on the coax. The slim jim is up 24' on a pole (21' of galvanized then 4' PVC with a length of bamboo that fit perfectly inside PVC to stiffen it up and a PVC cap on top). 00 The GMRS J-Pole is tuned for maximum performance on the 462 - 467 MHz General Mobile Radio Service and UHF public safety band. - $45 (also available in 250 watt version for $65. The name Slim JIM was derived from the J-Pole but improved by the developer of the antenna. The N9TAX 2m antenna works pretty darn well yielding a free space H-plane gain a bit over 2 dBi plus or minus the usual small J antenna gain perturbations. Variations of this antenna, are Slim Jim antenna, Super-J antenna and the Collinear J-pole antenna. On vehicles, mount your antenna as high as possible in a vertical position. The GMRS J-Pole is tuned for maximum performance on the 462 - 467 MHz General Mobile Radio Service and UHF public safety band. 97 Inch Elite VHF/UHF 144/430MHz SMA-Female Dual Band Hi $9. DIY 1/4 wave ground plane antenna. 00 I'm on a mission to inspire and educate the amateur radio community Read My Blog 1 2 3. Technical Discussion. 2 Meter Amateur Radio J-Pole Antenna $ 46. Ed fong gmrs antenna review. This video is packed full of technical and basic deployment information about our antennas. One other thing of note on this project: When this antenna is fed with rg-58 coax ~50 feet the distant gmrs repeater I built the antenna for is unreachable. The antenna's bright white enclosure blends right into the surroundings. 450 Ohm Slim Jim Antenna Project by KE4NU. Antenna fully weatherproof. This calculator can be used to design a Slim Jim or a J Pole antenna. 50 Increase your handheld’s UHF performance with this highly tuned flexible Smiley Antenna Slim Line Whip GMRS antenna. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT 2m 70cm Antenna 16' Coax. When I then collapsed it to the 1/4 wave length there was a very significant improvement (+1 bars and solid (or "1 more far" lol)) on both RX and TX strength as well as improved clarity. Figure 5 contains the results of the ferrite test with arrows highlighting values at VHF and UHF amateur radio spectrum segments. The super efficient synthetic-rubber dipped NT-MIL cover and flex coil matching network with 50 W power handling and 50 Ohm impedance insure durability, high. Image courtesy of WikiPedia J-Pole Antenna J Pole antenna projects A J-Pole for 2-meters and 70-cm KD6GLF. 2 Meter Break-a-Way Slim Jim Antenna $ 69. GMRS Blade Indoor Antenna: 2 Way, Midland. J Pole Antenna Design Calculator. Overview of build and SWR testing of N9TAX's Slim Jim antenna for MURS and GMRS. The N9TAX Slim Jim antenna is the highest quality roll up antenna available today. Figure 5 - S21 of N9TAX 'Slim Jim' feedline ferrite choke. Building J-poles and Slim Jim antennas out of 1/2 inch copper pipe, is a good choice as the build is rugged and reliable. The GMRS J-Pole is tuned for maximum performance on the 462 - 467 MHz General Mobile Radio Service and UHF public safety band. Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT MURS / GMRS Antenna 16' Coax! $31. Radioddity Antenna | 136-174/400-520MHz | SMA-Female. The upper section above the J type match is. It can easily be hidden behind blinds, but is also attractive enough to be displayed in clear view. KB9VBR J Pole and Slim Jim Antennas Popular Models 69,847 views May 30, 2015 723 Dislike Share Save KB9VBR Antennas 52K subscribers The three top selling models on my website: the 2 meter J-Pole. It is the same antenna that appears on the front cover of the ARRL VHF/UHF Antenna Classics Handbook. Two options: Greatly reduce the amount of cable between your radio and antenna. Comet makes an antenna called a GP9NC that is dual band VHF/UHF and covers both MURS and GMRS bands. I've been producing these antennas professionally for nearly a decade now and have sold over 15000 units. doctor Supporting Member Aug 1, 2006 1,036 79 58 79. 99 Tram 1126 UHF Antenna 410-490 MHz From $11. Dipole Antenna Calculator. I started with calculation s available online for the frequency I wanted to target, in my case how do i get a copy of my property survey in texas. Slim Jim N9TAX StationMaster Telewave TRAM Radioguy7268 Members 358 Location: Southeastern PA Posted September 15, 2019 You didn't mention what you wanted to use your "base" antenna for, or how you wanted to mount it. Strip both ends (top and bottom) about an 1/2 to 3/4 inch and bend each toward the center so they will overlap each other. The 5/8 wave antenna consists of a vertical radiator which is fed at the base of the antenna. #2 · Jun 2, 2017 (Edited) Well in looking at several sets of plans on a simple 2 meter J-Pole >antenna from doing a quick google search, most of them follow the same physical measurements, and differ on the mounting methods of coaxial cable at the feed point. New 2 Meter 70Cm VHF / UHF Dual Band Antenna K5BJM Base or Portable Slim Jim. 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. Examples of these are "copper J-poles", "slim jim", "arrow". Are you looking for a UHF omni antenna with a little more gain? Our UHF Slim Jim Antenna delivers up to 6dbi of gain on the 440 – 470 Mhz UHF bands, which is almost twice the gain of a J-Pole and 5 times the gain of a 1/4 wave ground-plane antenna. 50 Increase your handheld’s UHF performance with this highly tuned semi-flexible Smiley Antenna Slim Duck GMRS antenna. Slim Jim, by his definition, is any half-wave dipole antenna fed with a quarter-wave stub with the feedline across a portion of the stub to find an optimal impedance - this includes the traditional J-pole , Zepp, etc. 5" Antenna 21 $4800 FREE delivery Oct 28 - 31 Small Business. 04 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole For HT 2m 70cm Antenna 10' Coax $28. Slim Bar, Milan: See unbiased reviews of Slim Bar, one of 8,729 Milan restaurants listed on Tripadvisor. Tram 460 - 470 GMRS Base Antenna. It's construction makes it "Slim". 5/8 Wave with 6 dBd gain at 460-470 MHz, make this a must-have accessory for your GMRS two-way radio or SHTF scanner. Connecting the two with 100ft of RG8x Coax. The approximate gain in the H-plane of the Slim Jim is from 1. Our UHF Slim Jim Antenna delivers up to 6dbi of gain on the 440 – 470 Mhz UHF bands, which is almost twice the gain of a J-Pole and 5 times the gain of a 1/4 wave ground-plane antenna. 00 462 MHz Land Mobile (GMRS) J-Pole Antenna $ 30. 50 shipping 2 meter J pole & 70cm Dual Band Collapsible Copper J-Pole Antenna FREE SHIPPING Sponsored $40. The benefit of the 300Ω twinlead over the 450Ω ladder line is the physical length of the finished antenna. The General Mobile Radio Service ( GMRS ) is a North Ed's antenna's use twin-lead as the radiating element. 99 Add to Cart Radioddity SRH805S 1. 95 Permanent Roof Mount for 3/4" Hole. Enter Frequency (MHz) The Slim Jim antenna is an extended version of the J-Pole antenna, using the same matching stub principle. The Slim Jim Antenna The Slim Jim is a vertically polarized omnidirectional end-fed antenna having considerable "gain" and this is concentrated almost parallel to ground toward the horizon rather than skyward making it more efficient than a ground plane type antenna by about 50 percent better. 04 shipping Authentic N9TAX VHF/UHF Slim Jim J-Pole Dual Band 2m 70cm Antenna jpole $26. The General Mobile Radio Service ( GMRS ) is a North Ed's antenna's use twin-lead as the radiating element. Fong mentions in his original article) cost for performance. 2 Meter Break-a-Way Slim Jim Antenna $ 69. Unobtrusive: The Blade design is very slim and stealthy. Baofeng RA-MD2 GMRS Antenna. At UHF most of these imitations have horizontal loss of -6dB. Build the Slim JIM Antenna. GMRS J - Pole antenna UHF radio 462mhz. Constructing the Slim JIM According to references, this antenna can be constructed from anything such as; twin lead 300 ohm TV antenna lead-in, copper and aluminum tubing and solid. Asked by davidrayt, February 16, 2021. Probably the best portable/temporary aerial around - and you make it yourself! The 2m Slim Jim is easily transported by just rolling it up. This video is packed full of technical and basic deployment information about our antennas. Make the "j"out of 1/4" soft copper, Solder it in place thru the hole and add the cable. Comet makes an antenna called a GP9NC that is dual band VHF/UHF and covers both MURS and GMRS bands. Our UHF Slim Jim Antenna delivers up to 6dbi of gain on the 440 - 470 Mhz UHF bands, which is almost twice the gain of a J-Pole and 5 times the gain of a 1/4 wave ground-plane antenna. And "JIM", because of the quarter wave stub matching technique called " J Integrated Match", hence the Slim JIM as named by the original designer. I purchased the antenna directly from his website https://n9taxlabs. Build the Slim Jim Antenna by Jose Calderon, DU1ANV. They are a little pricey, but I bet they do a. #hamradio #gmrs #comet #DIY. (21) Walking Pad Treadmill Under Desk Electric Foldable Walking Machine Home Office Gym Exercise Fitness Black. Build the Slim Jim Antenna by Jose Calderon, DU1ANV. With lmr-400 the same repeater reads s3-s5. GMRS J-Pole antenna UHF radio 462mhz. GMRS J - Pole antenna UHF radio 462mhz. ham radio base antenna. And this type of antenna can be used horizontally polarized. GMRS band Slim Jim antenna from N9TAX for GMRS Mobile Radiohttp://www. New GMRS antennas from Nagoya are now available!. This antenna design does. In a relief to the fishermen of Krishnapatnam port region, the state government has decided to construct a new fishing jetty in Muthukur mandal. The General Mobile Radio Service ( GMRS ) is a North Ed's antenna's use twin-lead as the radiating element. Please email me if you are interested in this model) DBJ - UHF (perfect for GMRS) +5dB Gain Antenna – US patent 8,947,313 +5dB gain no radial collinear – featured in CQ magazine. It's cheap, easy to construct and works great. 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