The manufacturing of our antennas is performed inhouse by our team of assemblers and technicians. Screwdriver multiband mobile antennas have grown in popularity, and qst magazine took a closer look at the west mountain radio targetuner screwdriver antenna controller in its september edition you can read the entire article here, but weve included a couple nice summaries from author ward silver, n0ax, below the latest model of the west mountain radio targetuner. Jan 29, 2019 the mfj1668 manually tuned screwdriver antenna was designed for continuous operation from 680 meters using a supplied whip 10 feet in length. Remove the whip to get 6 meter through 40 meter coverage. Tuning point for 10 meters is now below the 12 meter tuning point, inline to where you would expect it to be, at the low end of the screwdriver run. Par electronics antennas, filters for amateur, swl, and scanner. The bracket and the car body need to be well grounded. Mobile hf installation part 34 screwdriver antenna. Phase 3 install the scorpion screwdriver antenna and controller this article phase 4 install a 500w amplifier, 160m capability and operating accessories. It replaces your current control unit and provides an automated memory feature that eliminates the visual coil tuning method commonly used. Hard to beat the icom 7000 and tarheel 200a for mobile operation. The control unit is an intelligent, microprocessor based, data and pulse width modulated pwm motor controller that monitors the transmitter frequency and antenna performance, while managing the antenna motor speed and tuning accordingly. Mfj1699t 10band hfvhf 80 thru 2m mobile antenna with 3824 connector, handles 200w. Towertalk using screwdriver antenna as a base antenna, jim lux inc.
Par endfedz full length half wave dipoles, but with an important difference. In addition, specific models mentioned in the antennas forum like hf mobile antennas and more are here for future reference. Hiq6160 rt mc3h hf mobile antenna on the top of my carport with only an. As mentioned above, proper antenna impedance matching is a absolute prerequisite when using an swr detecting controller.
How to repair high sierra mobile antennas qrz forums. Tunematic utilizes frequency measurement, swr detection, and antenna position to perform the proper tuning, and stores the tuning data in a series of internal reserved memory banks, based on frequency and bandwidth. Fixedmount cb radios free delivery possible on eligible purchases. Antenna stall current switches sw2, sw3, sw4 used to set maximum stall current. Tests with ohmmeters will likely provide misleading information. Materials and other specialty parts or services that are required for each antenna build are provided by our carefully selected subcontractors. Don invented the screwdriver antenna in 1991 and during the next twenty years don made thousands of these antennas, which were bought by hams all over the world. The ko6yd screwdriver antenna memory the screwdriver antenna memory sam product is designed to enhance the mobile antenna commonly called the screw driver. Below is a snapshot of services and capabilities that our subcontractors provide. It has been part of our plan to enhance our mobile hf installation to include a screwdriver antenna and a mobile amplifier. Screwdriver antenna antennas by k4poz ron wilson pozy. Further to a question i posted here with no replies, i assume that theres not too many folks here with a screwdriver antenna. Autodetect complete antenna position sensor range to generate the antenna tuning range. Automatic screwdriver antenna controller ax17 for atas120a.
A screwdriver antenna is a remoteoperated variabletuning antenna favored by radio and ham operators and enthusiasts. Pacific antenna pac12 antenna vertical antennas 6010m. Hiq6160 rt mc3h hf mobile antenna on the top of my carport with only an 8ss whip and no caphat. This is used to determine when the screwdriver antenna reaches the end of travel. Tunematic operates anywhere between 160 mhz, and supports a wide variety of screwdrivertype tunable antennas. Instruction manual for the little tarheel ii continuous coverage hf antenna 18511 cr 304 st. One word about the diamond antenna mobile screwdriver antennaswow. Automatic screwdriver antenna controller ax17 for atas. Tunematic is a selfcontained antenna controller which automatically adjusts the resonant frequency of a screwdriver motorized antenna. Imagine covering all hf bands, all of them, 80 through 10 meters, with only one mobile antenna. I love the hobby and experimenting with radios, antennas and software. Antennas core product was the antenna mobility platform amp, which won the gsma. Unfollow screwdriver ham antenna to stop getting updates on your ebay feed. Palstar tuners and accessories, sw radio, dummy loads, swr meters, filters.
This negates the use of any automatic antenna controller, whether it be a turns counter unit, or one which measures endoftravel stall current. Its a rugged homebrew multiband trap vertical antenna that works the 10, 15, and 20 meter amateur radio bands see all details. Screwdriver antennas mobile antennas antennas antenna. Custom antenna manufacturing and design jem engineering. In w6aaq screwdriver antenna plans of that homebrew. Lastly, several screwdriver antenna designs incorporate a slip clutch or gap in the allthread drive screw assembly to avoid motor damage once the coil reaches its end of travel up or down. Screwdriver antenna makers category is a curation of 8 web resources on, the ko6yd screwdriver antenna memory, tarheel antennas, k4poz screwdriver antennas. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises, antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier. The simplest control is simply a double pole double throw switch.
Gritty rtty skimmer server hamvna dx atlas cw skimmer. The hiqantenna is a new and revolutionary design, not a cheap copy of a don johnson screwdriver type. Directly drive shortwave car antennas atas120a, m120a, ma for automatic tuning and driving amplifier. The coax connector is at one end of the dipole, where it is most needed.
To convert a screwdriver mobile antenna for base operations, do the following. It comes with a short coax jumper to connect to the transmitter. Ameritron 6 meter through 80 meter hf mobile screwdriver antenna does not include whip ameritrons sda100 is without a doubt the best built, best looking, best performing hf mobile screwdriver antenna in the world. West mountain radio targetuner screwdriver antenna. Antenna analyzers can give incorrect or false information. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises,antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier. Tarheel m200ahp antenna hf mobile screwdriver, m200ahp. A major aerospace company is the prime contractor and himilitary antennas. Founded in 1998, the company was acquired by pegasystems in 20. Tennatronix turbo tuner 2 automatic screwdriver antenna controller for icom hf radios. Scorpion antennas are designed for amateurs that demand outstanding performance. Imho a lot of screwdriverstyle antenna failures are due to poor maintenance.
Characterized by an oversized cylindrical housing at its lower end and a whip antenna at its upper end, it is usually fixed on a heavyduty mount to a vehicle or base. I have been wanting to build one of these compact hf antennas for some time. The main category is screwdriver antenna makers that is about screwdriver antenna makers. Installing an hf motorized antenna system is very different from a vhf or uhf antenna. Lastly, some mail software programs which use the data interface built into the transceiver can cause compatibility issues with some controllers if theyre not set up correctly. It has a swr bridge built in and checks the swr as it tunes to resonance. Towertalk using screwdriver antenna as a base antenna. Diamond antenna mobile screwdriver antennas sd330 free. I will say that a good base vertical will work better, but i used a screwdriver for years as a base antenna for hf and as soon as i get a chance i will return to that method.
Tunematic operates anywhere between 160 mhz, and supports a wide variety of screwdriver type tunable antennas. Ax17 automatic screwdriver antenna controller for atas120a m120a ma sd330 call sign version features. Towertalk using screwdriver antenna as a base antenna, k towertalk using screwdriver antenna as a base antenna, jim lux screwdriver antenna as a base antenna, chuck counselman towertalk 40m rotatable dipole, jeff griffin towertalk 40m rotatable dipole, michael tope. Ktt1 for kenwoods, and zteytt1 for yaesu specifications. As of june 20 w6hiq is an official hfn pilot station. Once found, the antenna motor is stopped and the radio is placed back in receive mode. Add to cart add to cart add to cart add to cart add to cart customer rating. A high efficiency screwdriver remote tuned mobile antenna. The antenna is tuned by loosening a thumbscrew and moving the aluminum cover up or down the loading coil. Here, youll find links for high gain screwdriver antennas covering hf. Using the new tlw software bundled with recent editions the arrl antenna. This dk3 screwdriver antenna was made by the late, great don johnson w6aaq in his garageworkshop in esparto. It adjusts the antenna until the measured swr is less than 1.
Our antennas work great in mobile, home and portable settings. Icom 7000 tarheel 200 mobile operation before the blizzard. Mostly i used the mobile screwdriver antenna on my truck parked in the drive way. Modifying the screwdriver antenna most screwdriver antennas are sold with a mounting bracket that can be attached between the main unit and a mounting tube of any outside diameter up to about 1. Under severe testing hiqsoftware torture, 5,000 tuning cycles is the. Resources listed under screwdriver antenna category belongs to mobile antennas main collection. N2vz enterprises turbo tuner fully automatic screwdriver antenna controller for icom, kenwood,yaesu radios. Sep 22, 2018 imho a lot of screwdriver style antenna failures are due to poor maintenance. There are at least 3 basic prerequisites to ensuring successful antenna tuning. About screwdriver antennas the resource is currently listed in in 5 categories.
Unfollow screwdriver antenna to stop getting updates on your ebay feed. Our motorized antennas and stainless steel mounts are designed with the most avid ham radio operator in mind. The ctr6160 auto controller will work with any screwdriver antenna with or without counter switchmagnet switch. Ameritrons sda100 is without a doubt the best built, best looking, best performing hf mobile screwdriver antenna in the world. A good grounding system, counterpoise or radials is absolutely essential.
Not finding too much in the way of details out there on the interwebs except for this really helpful site, i disassembled my dk3 design screwdriver antenna to take a. This antenna derives from a principle that a motor from an electric screwdriver could be used to drive a. I am attaching one of the plans so you can see how it look. I have a lot of experience with screwdriver antennas in base set ups.
The mfj1668 manually tuned screwdriver antenna was designed for continuous operation from 680 meters using a supplied whip 10 feet in length. I have several different plans and one is setup for use in an apartment. If set too high, the antenna motor may stall at the. When properly installed on your vehicle this antenna will provide continuous coverage from 10 meters through 80 meters with a 6 foot whip. Antenna software for ham radio operators ham radio secrets. Dont forget to look for the appropriate automatic screwdriver antenna tuner from turbotuner. Amateur radio antenna sold here,we update our stocks to.
The hiq antenna is a new and revolutionary design, not a cheap copy of a don johnson screwdriver type. Mobile screwdriver antenna controllers free shipping on. Ameritron sda100 antenna hf mobile screwdriver, sda100. Having had a gem quad hf 201510m for a few years, back in the early 80s, i can. Buy ameritron sda100 screwdriver antenna, 6m80m, hf mobile. When properly installed on your vehicle this antenna will provide continuous coverage from 10 meters through 80 meters with a 6. With proper care, a screwdriver can last for many years. I have been thinking about mounting another screwdriver antenna on top of my 10x20 foot and 9 ft high metal top garage in the middle. One of the advantages of a screwdriver antenna is that you can control it from the operators position. Proudly made in the usa, the turbotuner comes in three models. Oct, 2014 phase 3 install the scorpion screwdriver antenna and controller this article phase 4 install a 500w amplifier, 160m capability and operating accessories. If using ope750 instead of normal element, it can be used from 750mhz. You should use the transceiver and its builtin swr meter. Flip the switch one way, the antenna tunes up in frequency, flip the switch the other way, and the antenna tunes down in frequency.
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