9 el. 6m Yagi
6 meter 9 element beam Yagi (50 MHz) DXBeam (DXM6-9)
6 meter 9 element beam Yagi (50 MHz).
Elements made with 14 and 12mm tube.
Quadruple insulated vertical guying and lateral boom guying (see pictures).
With this large 9 element 50 MHz antenna, DXBeam wanted to meet the requirements of the most demanding DXers on the 6m "Magic Band".
The boom (13.5m long) is guyed with non-metallic tension cables (longevity>25 years) consisting of 8 "over-the-boom" cables and 4 lateral cables. It also prevents any unnecessary mechanical stress to the boom during installation.
This new DXBeam antenna has been tested during 2 years by Patrick, F2DX (DX AVENUE, manufacturer of DXBeam antennas) who could instantly compare with an existing 7 element DXBeam normally used at his station.
On-the-air tests have shown this antenna's performance to be really excellent. This is more noticeable when signals are weak or almost inaudible on the 7 element Yagi (eg. on Ascension Island beacon ZD8VHF/B).
Some photos: 9 el. 6m antenna used by F2DX
• Forward gain in free space (dBi): 14.3
• F/B ratio (dB): 36
• Frequency coverage (MHz): 50.000 - 50.350
• Bandwidth @ 1.5 VSWR (kHz): 350
• Feed impedance (ohms): 50
• Power handling (kW): 2.5
• Longest element (m)/(ft): 2.99/9.9
• Boom length (m)/(ft): 13.53/44.4
• Turning radius (m)/(ft): 7.15/23.4
• Weight (kg)/(lb): 21/46.3
• Wind survival (km/h)/(mph): 130/80.8
• Standard Mast size (mm)/(inch): 50/2 (55/2.25 or 60/2.50 optional at no extra cost)
2 kinds of grease are supplied with your antenna:
• Aluminum contact grease: Professional grease containing 30% aluminum particles, recommended for the assembly of aluminum antenna tubes. Prevents binding, corrosion and the formation of aluminum oxide, and allows easy dismantling of antennas after several years.
• Copper conductive grease: Professional conductive grease with a copper base, recommended for all hardware requiring a sound and lasting electrical contact. Prevents oxydisation, damp ingress, and limits chemical reaction between stainless steel and aluminum.
Balun or no Balun ?
• This antenna does not require any balun.
• To avoid having stray current on the braid of a coaxial cable (often the cause of RF and/or TVI/BCI), you can make your own 1:1 choke balun with coaxial cable. Explanations are provided with antenna assembly instructions. (See also our F.A.Q).