HF monoband beams for the demanding OM. Very good, but affordable quality. ZX-Yagis are used by many DX-peditions worldwide! Early in 2000 we acquired the entire production.
ZX was founded in 1980 by Ron Eberson. At first only meant as a hobby, the company has expanded strongly over time.
ZX-Yagi manufactures high quality shortwave antennas at affordable prices. The products are supplied through dealers in most European countries and in the USA.
Ron Eberson has supported many DX-peditions in the past such as VP6BR, FT5ZH, also CB-activities which often led to new ham radio licenses...
DA0HQ is one of the contest stations using ZX on 20m (2nd place 1999). Many known DX stations have ZX yagis, for example 9K2ZZ, 9K2RA, F2YT, XP1AB, PI4COM (40m beam).
In 1984 a Dutch amateur radio magazine tested a 3-element beam and wrote that this antenna would have given the best test results of the last 17 years!
Production is now at the WiMo site in Herxheim. Due to the relocation the shipping costs of the antennas could be reduced significantly. After also all tools / software etc. were taken over, it is guaranteed that the antennas are still delivered in the known quality. German instructions for the antennas and fast availability (also for spare parts) are of course available.
- • Made of resistant aluminium, all screws, nuts, U-brackets are made of stainless steel. The element diameter is between 60 mm for 7 MHz and 22 mm for 28 MHz.
- • The antennas can be mounted either with horizontal or vertical polarization.
- • Power rating 2000 Watt
- • Connection PL socket (option: N socket). The sockets are waterproof on the rear side so that no water can get into the cable.
- • all screws, nuts and U-brackets are made of stainless steel
Properties of the designs
Standard designs with high bandwidth and medium optimization. Good all-round antennas.
Gain optimized designs with slightly longer booms and therefore up to 1 dB more gain. Low to medium optimization, thus high bandwidths and insensitive to environmental influences.
Short antennas with small space requirement, but slightly less gain. High front/back ratio.
Medium boom length, low Q (23) 2-element reflector yagi, with good, constant gain (6.6 dBi) and constant front/back ratio (11dB) over a wide frequency range. Probably the best choice for a good 2-element yagi.
3 element yagi on short boom (0.25 wavelengths) with low Q (14), excellent front/back ratio and high bandwidth, medium gain. The right choice for a 40m antenna where best directivity is important. Bandwidth conveniently covers 250 kHz at SWR < 1:2 (40m).
3 element yagi with optimal spacing (0.3 wavelengths), with average to low Q (23). Good bandwidth with high gain (8.0 dBi) and medium front/back ratio. The cut-off frequency for SWR 1:2 is 1.3% of the design frequency. Good design for 15 and 20m antennas.
Yagi with medium element spacing and low Q (12) on a boom of 0.44 wavelengths length, excellent bandwidth with medium gain. Excellent design for 10m, covering the range from 28.0 to 29.0 at an SWR of < 1:2 Front/back ratio is optimized for the SSB band (28.4 to 29.0).
4-element yagi with low Q (13) at a boom length of 0.52 wavelengths, offers a medium front/back ratio especially at the upper end of the band and good SWR down to the lower end of the band. This is a typical feature of all 4-element ZX yagis with this boom length (approx. 0.5 λ).
5-element yagi, excellent stagger-tuned design with a boom length of 0.66 wavelengths. The extremely flat SWR curve shows that this is a very good design for a 10m antenna. With some optimization this antenna can be used at SWR < 1:2 from 28.0 to 29.0 MHz.
5-element yagi with very high bandwidth, according to Stagger-Tuned design with a boom length of 0.71 wavelengths. Due to the broadband design of this antenna this is also an excellent candidate for a 10m yagi with a short boom.
Another 5-element yagi with stagger-tuned design and short boom, offers excellent front/back ratio with medium gain. Covers more than the entire 20 and 15m band, and up to 28.9 MHz for a 10m yagi.
This slightly modified design has a high bandwidth which makes it suitable for 10m yagis. At a center frequency of 28.5 MHz, the SWR to 28.9 is below 1:2. To achieve this higher bandwidth, slight compromises have been made in the front/back ratio, but not in the gain.
Classic 6-element yagi design on a very long boom (1.21 wavelengths), gives an excellent gain (12 dBi), but a good back/forward ratio only over a limited bandwidth. SWR < 1:2 in the range 28.0 to 28.7 MHz at a design frequency of 28.4 MHz.
Items 1-10 of 36
Items 1-10 of 36