The Diamond SD is a motor driven mobile antenna for shortwave, from 3 to 30MHz. The Diamond SD screwdriver is your efficient antenna solution for mobile HF With the main SD element enjoy operation on any frequency from to. Diamond SD Mobile Screwdriver product reviews by real people like you. Only at – is a Web site dedicated to ham radio (amateur.
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If you have any questions, problems, or suggestions about Reviews, please email your Reviews Manager. I purchased the continuously adjustable SD over a year ago, and I’ve had good success on 40M as well as surprisingly good success on 75M.
As any mobile antenna the SD requires the body of the car as diakond. The Lexus is the first vehicle make out of diamonnd 70 cars I have owned that has zero noise.
I use a small, 12V lithium ion battery pack to power the antenna’s tuning motor, since it draws only about mA. Seems to be a normal mobile antenna. The importance of a good RF ground can not be over emphasized as has been very well documented by K0BG. Hope I haven’t just jinxed myself, hi hi!
The antenna looks great with high gloss black finish. The frequency and position count number will be shown at that time. Overall a good solution if you want to cover all bands in a hurry.
With the supplied cm radiator the antenna has a total length from cm 3. Viamond operation, the SDC-1 requires a maximum of mA. If the grounding is not sufficient especially sc330 the low bands 80 and 40m an additional magnet mat MAT can help.
I went with the Diamond because of fit, finish, and complete meter capability with two different whips included: I also dimaond the Better RF Tune control and screwdriver control. Used the cigarette lighter as power source. No need to change the antenna when changing bands. With a goood counterpoise an SWR equal or better than 2: The supply voltage 12V is taken from the cigar lighter.
With this short radiator operation diajond possible from 7 to 52MHz. I am very pleased with the SD’s performance. For operations on 30 and 20m the optional resonator HVCCX is required, replacing the 40m resonator. New to Ham Radio? I have given up and scrapped it. All antennas are equipped with a telescopic tuning element, not wire cutting needed. Solid monoband mobile antennas for shortwave. If I had to find a ‘fault’, I’d have to say it’s the antenna screwdriver control switch, which is pretty flimsly.
Too bad, great looking but unreliable. Short whip loads up from just below 6 meters to mid 4 Mhz.
SCREWDRIVER ANTENNA/DIAMOND ANTENNA CORPORATION
Built extremely well like a tank and is flawless performer. With the optional radiator OPE 77cm the antenna has a length from to cm.
I set up the system shortly before I left Ohio with out a lot of elaborate grounding. So the power was restricted to some 50 watts. The tuner should be mounted as close as possible to the antenna. Efficiency wise, if you want the ultimate mobile antenna, you might have to try a Bug Catcher. There was no scope in the firewall of my Accord to bring in the heavy gauge wire.
SD Cable with control. If the antenna is used at home a suitable counterpoise system must be built with wires. With a parked car not while driving a smaller PL magnet base can be used as well, with the huge triple magnet base operation may be possible even while driving.
In stockshipped in 1 or two days. Long whip loads from about 32 MHz to well below 80 meters. The screwdriver design permits me to adjust the SWR to 1: In contrast of the original controller there is a choice to use automatic fixed positions for each band. Add to shopping cart. Still very early days.
I could not sell it to some one else and sleep at night. I installed xd330 coil at the base to shunt the antenna to lower the feed impedance on the lower freqs and the SWR is perfect. Had it apart many times to tighten hardware and then try later to modify it to keep it from vibrating loose. Don’t hesitate to buy this antenna Also suitable for space restricted environments, e.
After I arrived in San Diego I did try the antenna on a variaty of bands and I am very pleased with the performance. Due to the comfortable adjustment of the antenna you can tune without leaving yopur car.
DIAMOND ANTENNA CORPORATION
I couldn’t be more delighted with this antenna. I use it mainly on 14 ,18 ,21 and 28 Mhzs and mounted on a tri- mag mount. Works well on 40 diamonc even with the short whip surprisingly! Contact the site with comments or questions.