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Call 0345 2300 59920m 4el. full size, 8.5 dBi, Heavy Duty Yagi antenna. Boom 8m By Antennas-Amplifiers
High Gain 20m 4el High Gain MonoBand Antenna 20m4HD with excellent wideband characteristics, gain, and front-to-back ratio. Use this antenna to win any HF contest, or just for DXing. Direct 50 Ohm feed. Input power is limited by the feed line only.
What does 20m4HD mean?
- 20m – 20m band, 14-14.35 MHz with super low SWR on any frequency
- 4 – 4 elements – Super strong construction
- HD – Heavy Duty Construction for any strong wind up to 150km/h
Electrical Specifications of 20m 4el High Gain MonoBand Antenna 20m4HD
Frequency Range: 14 – 14.35 MHz
Free Space Forward Gain: 8.5 dBi
Front-to-Back Ratio: 26 dB
3 dB Horizontal Beamwidth: 62°
Polarisation: Horizontal
Nominal Input Impedance: 50 Ohm
SWR Across Entire Band: < 1.2
Maximum Power Input: 2000 W (more by order)
Matching Method: Direct feed through common mode choke (current balun)
Connector: SO239 Teflon Silver plated or 7/16 DIN by request
Mechanical Specifications of 20m4HD
Number of Elements: 4
Elements Diameter: Tapered elements 35 mm to 8 mm
Longest Element: 11.4 m
Element Mounting Position: Below the boom
Balun and Connector: Included
Boom Length: 8 m
Boom Size: 60 x 60 mm
Turning radius: 7.4 m
Number of Boom Pieces: 4
Guy rope support: Yes, Included Stainless Steel AISI 316L rope 4 mm
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD (by order up to 700mm)
Clamp: 2 x M12 Stainless Steel AISI 316L (A4)
Survival Wind Speed: 150 km/h
Net Weight: 42 kg
Gross Weight: 47 kg
Transportation Length: 2 m
Antennas-Amplifiers Product Benefits. A Major advance in antenna design.
- F/B and G/T superiority.
All antennas have been calculated using state-of-the-art full 3D EM modelling software, including the influence of the boom, bracket, baluns, and connectors. The performance of antennas designed using these techniques is exceptional, far better than that of antennas designed using the EZNEC program.
- No tuning antennas.
Antennas-Amplifiers before dispatch, assemble and test each antenna’s characteristics. No need to tune any element to get a perfect SWR on the intended frequency range. Everything is pre-tuned.
- Easy to set up.
Everything is labelled, just put a number to a number. Everything is included in the box: Antenna, balun, bracket, and guy rope support if needed. Yours is to assemble and have fun!
- Mechanical properties.
We believe that our antennas are the world’s strongest antennas and are mechanically constructed much better than any antennas from other manufacturers.
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]