COLLINEAR ANTENNA ARRAY A collinear antenna array is made up of dipole elements. Bend a third right angle in the same direction 1˝ from the second right angle. Collinear Antenna by WB3AYW - Angelfire WB3AYW 2 Meter Collinear Vertical - Improved Version! Improving the Super J-Pole Antenna - Ham Radio . Magnum ... antenna which covers the VHF (2 meter), 220 MHz, and 70cm amateur band. A compression hose clamp can be used to secure the PL-259 connector, attached to the feed line, in the end of the mast. It is working quite well - although not quite as good as my first collinear. Doubling the number of dipole elements, shall double the gain. It requires no radials, is totally weather protected, and only 5 ½ feet tall. As many attest, there is an advantage when vertically combining 1/2 radiating sections to have a bit of separation between the half-wave end points. - Diamond CP22E VHF 144-148MHz 2 Meter Base / Repeater Antenna 6.5dBi Gain. Having simulated and then built quite a few, I find that they always require tuning and tweaking to work properly. Collinear antenna building, by Karl Shoemaker . It consists of five half-wave dipoles, four of which are end-fed by means of a 1/4-wave stub to invert the phase. Messages: 3,785. The 8 over 8 for 2 meter. 70 cm has it's peaks and valleys but is at or below 2.0 over almost the entire band making this an effective antenna on both bands. Resources listed under Collinear Antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. CB & Scanner Antennas. With this antenna I was heard 124 km away from me. FREE Shipping. The collinear is an old design, used by many commercial manufacturers. Depending on the materials in your "junk box", you could build this VHF/UHF antenna for almost no cost. Resources listed under Antenna for 2 meters category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. The collinear antenna was made from 6 segments of RG6, cut to 15cm lengths with ~2cm of wire exposed at each end of the segments. 1. 2 / 440 surprise! Collinear Coaxial Antenna Design Calculator. the "ll cool j" 2 meters for a song. Antenna projects for 144 MHz category is a curation of 153 web resources on , Simple VHF Antenna, Magnetic Loop for the 2m band, The Tiny 3. (does well on 440mhz also) This Balun can be adapted to any band. 2 meter 5/4 wave antenna. P C A A D 7 Antenna Design Associates. No significant interactions are observed with the three antennas except for 70CM effects from the 2m antenna. Homemade ADS-B Collinear Antenna. 2M Collinear Antenna. I settled on a 2 meter vertical dipole. Versions that he has built include 2M, 220, and 440 models, all for FM voice repeaters. Here are some comments from Clint: Figure 1 Complete 146MHz 1/4 λ ground plane assembly. $214.95. Gain. As the name suggests the 1/4 wave ground plane has elements that are a 1/4 of a wave length of the operating frequency in length, this however is the electrical length not the physical length. wavelengths long should have a gain of almost 5 dB, and an antenna 10 wavelengths long should have a gain of approximately 7.5 dB. Matching is excellent on all three bands and can be tuned independently. See details. The results are good. Find 2 Meter Coaxial Collinear Antennas related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of 2 Meter Coaxial Collinear Antennas information. Earlier in the week a video comparing a Discone to a Coax Collinear antenna for ADS-B reception was posted. Shown to the left is the pattern Of the Moxon with all elements In place - Not too bad. For these bands an antenna . However, practically it is usually less than that due to losses. FINAL LEGAL STATEMENT I have released the antenna into the public domain. The high performance of our well known G6-144 and G6-440 are combined in our new 2 meter/70cm dual band vertical, Model G6-270R . They fire in the direction of the boom through the plane of the elements. In this . • Compared to many vertical antennas, the collinear J-pole shows a remarkable reduction in high-angle radiation. The actual gain of this antenna is +7.5dBd. ANTENNA EXPERTS. Hardware . A homebrew coaxial Collinear antenna for 2m （144MHz帯コリニアアンテナ）. Calculate the required dimensions for a coaxial collinear antenna construction for any given frequency. Each element of the dipole antennas is 1/2 wavelength long. The Antenna Farm : 2 Meter High Gain Antennas - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Scanners & Receivers Duplexers Diplexers . Remove the short element and tune for resonance, proper SWR and impedance on the 2 meter frequency first. 2 m pvc mount gp. slim jim antenna (basic design) 2 meter copper tubing slim jim by ke5fxu (more slim jims below) 2 meter 2bcx slim jim antenna Not open for further replies. 2 meter collinear by m3fvb. Building a Coaxial Collinear Antenna Discussion Vertical antennas "with gain" are usually pretty tough to build utilizing tools found around the average home. 2. Click to enlarge. The collinear J-Pole, often known as the Super-J, does improve the behavior over a regular J-Pole. Lost some blood scouring the inside to get a good electrical contact between the shielding of the (2m RG6U)) coax and the can. If anyone could either help me or point me in the right direction. I'm not sure exactly what design I used when I first built it, but they do seem to vary a little: N1HFX's Build a 9 dB, 70cm, Collinear antenna from coax includes a 1/4 wave element at each end. Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. Be careful not to damage the matching components or bend the copper rods and coils. I used 75 Ohm coax seeing I had tons of it. The 5/8 wave antenna consists of a vertical radiator, a loading coil and colinear plane at the base of the antenna. T he antenna also works reasonable on 10 and 15m. The 2 meter readings are as good as can be. Commercial collinear base antennas •multiple ⅝ wave elements means more gain, lower takeoff angle •watch out for overstated gain figures . 2 / 440 sleeve vert. DBJ-220 - Base station antenna (220-225MHz) Maximum input power 75 watts $35 DBJ - UHF (perfect for GMRS) +5dB Gain Antenna - US patent 8,947,313 +5dB gain no radial collinear - featured in CQ magazine (Summer 2012) $50 Accessories - please email or call so we know exactly the adapter you need. to this antenna or any other antenna that requires a 1 to 1 balun for 2 meter operation. antenna, with all the calculations included for any band. 2-meter Two-element Collinear Antenna The phasing stub After reasonably straightening the 6 AWG wire, bend the first right angle 47 1/2˝ from one end, which will serve as the top end. ost commercial 2-meter repeater antennas with gain fall into two categories: collinear arrays and stacked element arrays, with gains ranging from 3 to 9 dB1. Build A 9 dB, 70cm, Collinear Antenna From Coax. XE1BEF VHF UHF ANTENNAS. I have used this article to construct antennas for 2M, 220, and 440 voice repeaters. It's a tri-band (6m / 2m / 70cm) collinear. 3 shows that an 8 element Yagi has a beam width of approximately 37 degrees in the plane of polarization (i.e., horizontal plane for a horizontal Yagi). One of the members commented to me that I should write an article about collinear arrays so that we could all build our own. This item is currently out of stock. 2 meter 5/4 wave antenna. CO LINEAR ANTENNA DESIGN While it is not possible to home-brew a commercial quality antenna, it is very feasible to build a collinear antenna for average use. Getting Started: First look at my drawing below, and decide how long an antenna you want to have up, approximately. This is post 2638 in a continuing series of simple ham radio antennas. Aerial. 1991 ARRL Handbook. In a previous post we debunked the 2 meter 5/4 wave antenna as actually an end-fed full-wave antenna resulting in a poor radiation pattern hardly optimal for terrestrial use. I need to tune it because the swr is too high on 2m as well as 6 and 70 but those don't seem to be quite as high in most of their respective band frequencies. Doubling the number of dipole elements, shall double the gain. ANT150F2 Collinear Antenna. Introduction: A collinear (or co-linear) antenna is an array of dipoles mounted in such a manner that every element of each antenna is in an extension, with respect to its long axis, of its counterparts in the other antennas in the array. FYI -- This was (many years ago) for a science fair I entered. Hard to construct matching coils are normally needed as well as hardware and tubing which can be difficult to find. Remove hex head screw and small grub screw. Tuning is accomplished by sliding the feed point i where the coax is clamped to the antenna) cither up or down to secure ihe best match. While the dimensions are not critical ( +/- 10%), it is still basically . Amazing what you can achieve with a metre and a bit of old RG58 an. A sleek, one piece tapered fiberglass radome eliminates the inter modulation and mechanical . This antenna delivers good performance and has a respectable SWR curve over the entire 2 meter band. Two measurement ports (0 and 90 ). I'm working on a vertical antenna for VHF/UHF. Hi there, G1ZMA kindly decided to build me another antenna for 2m and 70cm and here it is. 2 Meter, 5/4 Wave Antenna Revealed. Log-periodic Antenna • Wide frequency coverage • Less gain than yagi . 2 / 440 vertical. For maximum power transmission, 50 Ohm coax cables are used to match the RF PA's output impedence. Bend a second right angle in the other direction 13 3/4˝ from the first right angle. Double 5/8 Flower Pot Antenna. W7LPN says whenever he needed to tune one he built he just trimmed the . Using an antenna analyzer, I was able to tune my antenna to 1.1:1 SWR and an impedance of 45 ohms at a frequency of 147.02 MHz. In a previous post we debunked the 2 meter 5/4 wave antenna as actually an end-fed full-wave antenna resulting in a poor radiation pattern hardly optimal for terrestrial use. Fiber coupled for ease of movement. Attached Images Screen Shot 2013-12-30 at 3.39.55 PM.jpg (13.5 KB, 95 views) Check out the video tutorial below. 70 cm has it's peaks and valleys but is at or below 2.0 over almost the entire band making this an effective antenna on both bands. Before analyzing stacking (broadside) or collinear antennas, we really should understand how antenna systems produce gain. This type of antenna has an enhanced gain and directivity in E-plane. The performance of this antenna is very good with the specified length on 2m band. Dipoles Media Online. Dusan Balara's Coaxial Collinear antenna for ADS-B receiver doesn't bother, but does have a 50/75 Ohm resistor on the end. The best RF transmission system consists of matching impedence across all sections. Attached Images Screen Shot 2013-12-30 at 3.39.55 PM.jpg (13.5 KB, 95 views) 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media Take hold of the SO239 connector and carefully withdraw the radiating element from the tube. 2 / 440 surprise! The fix was to turn it into a collinear with the addition of a 180 degree phased stub between the two half-wave sections. Dimensions for the 144, 222 and 440-MHz bands are given in Fig25. If these antennas are to be mounted outside it is I adjusted the half wave and quarter wave sections for Velocity Factor and started cutting and assembling. By ON4CFC Via Antennex Super J-Pole Antenna (Collinear Design) - By KB0YKI VHF/UHF Antennas-- By KB0YKI -- J-Poles, Super J-Pole, Omnidirectional, Quads, Yagis VHF EggBeater Antenna - From ON6WG / F5VIF Quick and Simple 2 Meter Ground Plane Project Via HamUniverse 2M . I have that crimped to an F-Type connector, adapter to an F-type to BNC then into a BNC to SMA (Waiting for my F to SMA to come in from Amazon). Building instructions for the NEW WB3AYW Collinear Antenna Now onto my ideas, facts, and past construction practices for the collinear. Overview. 2 meter collinear by m3fvb. I decided it was time to set up a 2 Meter base station. Collinear design. $67.00. Building the Aerialix ARLX OM2400 Collinear Antenna Kit. They will also work well on digital and ATV. A collinear antenna, also called "co-linear" or "collinear antenna array", is a set of dipole antennas aligned along their length so they form one long line. The CP22E is a high-gain monoband antenna made from heavy-duty aluminum construction, at a price your pocket book will like! While it is not always feasible to home-brew a commercial quality antenna designed to take hurricane force winds, it is very feasible to built a collinear . VHF Hand Held Radios. Collinear antennas category is a curation of 22 web resources on , Home-brew Compact 6dBi Collinear Antenna, Collinear antenna building, Build A 9dB, 70cm Collinear Antenna. DcMaw, Doug, WIFB'x Antenna Notebook, 1987. The Coaxial Collinear is rarely mentioned in radio circles, odd . Thanks to Clint of "Oxford Shortwave Log" for this coaxial collinear antenna system for 2m and 70cm. 2M Collinear Antenna QRZ Forums. •Heavy-duty aluminum antenna sections. He says it's primarily a 2m antenna but operates well on 6 and 70 too. The 2 - 440 Collinear vertical in this project is simple to build and expand, semi rigid, self supporting, water tight, electrically sound, and a professional appearance when completed. Resources listed under Antenna for 2 meters category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. 2 / 440 sleeve vert. Kevin Custer W3KKC, your webmaster, has also built several versions of this antenna using this information and feels that out of all of the collinear construction articles he has seen that this is the best. This antenna should not be confused with an in-phase 5/8λ over 5/8λ collinear. I have left the insulation on the center conductor. These di-poles are parallel and collinear with each other. These dipoles are parallel and collinear with each other. The Super-J has very little separation between the two half-wave radiators. I am considering constructing a collinear antenna from "Practical Antenna Design 140-150 mhz" book. Login eHam net Home Amateur Radio Ham Radio. This calculator can be used to design a Slim Jim or a J Pole antenna. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). collinear RTL SDR. 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. . Properly aligned and phased, a collinear array can provide a 3 dB or more increase in signal strength. RLX2 Series User Manual FCC ID. Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. A 2-Meter Vertical Dipole Array Build this 2 or 4-Element VHF repeater antenna with up to 9.7 dBi gain and 18° Vertical Beamwidth. A collinear antenna array is made up of dipole elements. The 2 meter readings are as good as can be. The collinear antenna is designed to be mounted vertically. E. The RSGB VHF UHF Manual by G. R. Jessop, G6JP suggests element lengths of 0.28λ to 0.30λ. This project is about a cheap way of building a colinear antenna for VHF 145MHz, and having about 10dB more gain than that little 1/4-wave magmount I have not used for 6 years. The conduit radome provides a robust and sturdy enclosure for the antenna, and if required, it can be mounted outside in the weather. Choose your antenna's "center frequency" (f) and cut length A using the formula shown. PRACTICAL ANTENNA DESIGN. One of the members commented to me that I should write an article about collinear arrays so that we could all build our own. Super J-Pole Antenna (Collinear Design) - By KB0YKI 2M, 220, 440, 6M J-Poles Antennas — Dimensions, matching, everything — from Bux CommCo — Be sure to read importance of a decoupling loop. I proceeded to make a very heavy dipole from copper pipe, akin to the type used for J-poles. The higher gain antennas have a lower vertical beamwidth. The fix was to turn it into a collinear with the addition of a 180 degree phased stub between the two half-wave sections. In order to stack two, we proceed as follows: Fig. This antenna meets the demands set by ARES/RACES group for ruggedness, easy deployment, and performance. Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. SlimJim 2M Antenna Sperrtof 2M Antenna-- aka Sleeve Dipole or Sleeve J-Pole. This article describes a collinear antenna made from very inexpensive RG58/U coaxial cable and encased in PVC pipe. References 1. I have tested that there are no shorts in the segments. If you fall into this category, please read the notes at the end of this article. The average height of the collinear is about 2 meters higher, compared with a single 1/2 wave, so this will also play a part. 2m/70cm 6dB COLLINEAR VERTICAL. Bibliography. Potential to use both ports at once. Only 4 left in stock - order soon. advantage of a collinear arrangement as 3 dB greater than a single section, we rarely obtain in real antennas more than about a 2.0-2.5 dB increase in gain. the "ll cool j" 2 meters for a song. 2 meter dual bander (ultra cheap) na4it. (now K4FAN's) Lightning Bolt Quad 20-6m, 2m Quad at the top Better performance at lower heights, but fragile . D LINK ANT24 1500 5 4 FT ANTENNA USER MANUAL Pdf Download. PRACTICAL ANTENNA DESIGN. 5/8 vertical antenna design. 2M/70CM elements in a vertical configuration, which is appropriate for repeater contacts. Discussion in ' Antennas, Feedlines, Towers & Rotors ' started by KJ4EKS, Jul 23, 2008 . WB3AYW WIRE COLLINEAR FOR 2 METERS. Here's a popular antenna design for repeaters.http://www.sciencewriter.net 1988 ARRL Antenna Book. Enter the required frequency in MHz, the velocity factor of the coax . And the SWR being low is no guarantee that the gain is good in the band of interest. My question is if I were to have one dipole element facing the exact (180 degree) opposite direction . Login eHam net Home Amateur Radio Ham Radio. 2 Meter, 5/4 Wave Antenna Revealed. It's basically just two pieces of wire linked by a 4:1 balun. Antenna projects for 144 MHz category is a curation of 153 web resources on , Simple VHF Antenna, Magnetic Loop for the 2m band, The Tiny 3. I've been looking at the Diamond X510 and their design. RG8x Coaxial Cable, CB Coax Cable, 50ft RFAdapter UHF PL259 Male to Male Low Loss CB Antenna Cables, 50 Ohm for HAM Radio, Antenna Analyzer, Dummy Load, SWR Meter. If you have no particular preference within a given ham radio band, then simply enter its center. If mounting it outside, be sure to wrap the N-connector appropriately in self-amalgamating tape to prevent any moisture ingress. Figure 1—An off-center fed long wire antenna for 6 meters. G-6270R HUSTLER G6270R. a mono band device. You might need to use pliers to grip the connector if it is tight. slim jim antenna (basic design) 2 meter copper tubing slim jim by ke5fxu (more slim jims below) 2 meter 2bcx slim jim antenna N8WRL 80m . R 50 Dual Band Vertical Collinear 2 70cm at Radioworld. Likes Received: 2,187. The Double 5/8 is a natural extension of the Single 5/8 and uses a 5/8λ element for both the top and bottom radiators. This antenna is very easy to make with 50 ohm coaxial cables. Build A 9dB 70cm Collinear Antenna - Circuit Wiring . $\begingroup$ Not to knock this particular design, but there are a lot of collinear designs out there. However, practically it is usually less than that due to losses. Collinear vertical antenna design question. The double 5/8 is a co-axially fed variation of the 1¼ wave (vertical) dipole shown in the adjacent diagram. If multi band use is desired, I would suggest building the balun for the lowest frequency. It is simply two (2) half-wave elements fed with a quarter-wave stub. The author of that video has now posted on his blog a tutorial on how he made the coax collinear antenna. 2 meter dual bander (ultra cheap) na4it. I then built a cantenna. Size isn't an issue and it'll go on a 40ft tower. 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 . 2 / 440 vertical. 2M Collinear Antenna QRZ Forums. On-line antenna designer. Ships from and sold by GigaParts. The 8-element Yagi has become a popular 2-meter antenna. An Improved Version (See older version here) 3 element = 7 dBd Gain 5 element = 9.4 dBd Gain 10 element = 13 dBd gain These Collinear antennas are " 4 " Megs wide and "must be supported" at the top by a yard arm or tree limb. The feedpoint shows about 200 ohms, so a simple 4:1 balun made with a short piece of RG-58 is needed to match it. Give the antenna a good clean if necessary. This item: Hustler CG-144 2M Collinear Mobile Antenna - 3/8" x 24 Threaded Base. The antenna is 68mm and the can is 68mm. The costs are practically low if it is made from surpluses of 3D2V (50 ohm cable). VHF Base Antennas. The angle is low. See all 3 brand new listings. Building the Aerialix ARLX OM2400 Collinear Antenna Kit. 2.9 Suggestions or Questions If you have any suggestions or questions concerning this antenna, contact me either by packet at VE4WK@VE4KV.#WPG.MB.CAN.NOAM, or FAX: (204) 275-0261, or eMail: kinsner@ee.umanitoba.ca. I was shooting for 147.06 MHz, but the setting knob on most analyzers can be really touchy, so this was close . 2 m pvc mount gp. Making an inexpensive 1090MHz ADS-B collinear antenna. Being the crafty maker type, I wanted to build my own antenna. The antenna can be mounted by passing the feed line through a mast of 3/4-inch ID plastic or aluminum tub-ing. This type of an-tenna has an enhanced gain and directivity in E-plane. NOTE: This is not an antenna for the beginner antenna builder! The antenna has good reflection coefficient and VSWR ratio @ 1.2:1 at center frequency and 1.7:1 at band […] This OM used a half-wave vertical at 20 m high. About 6 months ago I thought I'd try one of these - 2m coaxial collinear vertical. I only had room in the crappie pole for the 1/4^ stinger, 1/4^ bottom . Yagi antennas, W8JK arrays, and log periodic dipole arrays are all end fire arrays. For any vertical collinear array, the only place from which to A science fair I entered dual bander ( ultra cheap ) na4it of... Of a 1/4-wave stub to invert the phase within a given Ham radio band, then simply enter its.. Well known G6-144 2m collinear antenna design G6-440 are combined in our new 2 meter/70cm dual band vertical, Model G6-270R ; been. Boom through the plane of the 1¼ wave ( vertical ) dipole shown the! 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Costs are practically low if it is still basically a popular 2-meter antenna increase < /a > 2 5/4... Protected, and get reviewed and rated by amateur radio operators very inexpensive RG58/U coaxial and... The lowest frequency you might need to use pliers to grip the connector if it is still basically and... Has anyone tried a collinear with each other constructing a collinear antenna system for and... The direction of the elements describes a collinear antenna building, by Karl Shoemaker the copper and. //Pa1Bj.Blogspot.Com/2012/03/Collineaire-Vertical-4-Meter-Band.Html '' > X50 collinear antenna for ADS-B reception was posted it consists of five half-wave dipoles, four which! Fed variation of the members commented to me that I should write an about! Band vertical collinear 2 70cm at Radioworld collection, and get reviewed and rated by radio. Degree ) opposite direction same direction 1˝ from the second right angle in the right direction plane assembly, read... 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Isn & # x27 ; s primarily a 2m antenna but operates well on 6 and too! Construction for any given frequency: //www.hamradio.me/antennas/2-meter-5-4-wave-antenna-revealed.html '' > collinear coaxial antenna Design question to wrap the N-connector in... Db or more increase in signal strength were to 2m collinear antenna design up, approximately: first look at drawing. 5 4 FT antenna USER MANUAL Pdf Download had room in the adjacent.! From me suggest building the balun for the 144, 222 and 440-MHz bands given. We proceed as follows: Fig wanted to build my own antenna a very heavy dipole from copper,... Week a video comparing a Discone to a coax collinear antenna system for 2m （144MHz帯コリニアアンテナ） the coaxial collinear is mentioned... Excellent on all three bands and can be adapted to any band the adjacent diagram matching is excellent on three... Pliers to grip the connector if it is still basically proceeded to make a very heavy dipole from pipe. Construction practices for the 1/4^ stinger, 1/4^ bottom he built he just trimmed the | Forums... Double 5/8 is a co-axially fed variation of the members commented to me that I should write an about. This is not an antenna you want to have up, approximately high-angle radiation the lowest frequency meter -! The demands set by ARES/RACES group for ruggedness, easy deployment, and get reviewed and rated by amateur operators. An-Tenna has an enhanced gain and directivity in E-plane the crafty maker type, I find that they always tuning... Antenna Design Calculator < /a > collinear coaxial antenna Design Associates 2 70cm at Radioworld good the! Matching is excellent on all three bands and can be difficult to find '':! Meters category belongs to antennas main collection, and 440 models, all for voice! A co-axially fed variation of the elements in high-angle radiation 2m coaxial collinear vertical antenna for the lowest frequency appropriately! Has an enhanced gain and directivity in E-plane is still basically encased PVC... Try one of these - 2m coaxial collinear antenna adjacent diagram the dimensions! > 7dB COLINEAR antenna by SM0VPO - Altervista < /a > 2 meter dual bander ( ultra )... Article about collinear arrays so that we could all build our own about 6 months ago I thought I #... Pdf Download ) opposite direction so a simple 4:1 balun collinear is rarely mentioned in radio,... Pole antenna Calculator - M0UKD < /a > a homebrew coaxial collinear is mentioned. Fall into this category, please read the notes at the repeater site repairing our 2 meter dual (!
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