Spiderbeam Wire Antennas

Spiderbeam Aerial-51 Model 807-HD

For Horizontal Antennas, HEIGHT = MIGHT!!

HEAVY DUTY Asymmetrical Dipole, 7 HF Bands +6m; (+30m with tuner/reduced performance).

Antenna length: approx. 40.8m (134 ft.)
Antenna weight: only approx. 800g (1.5 lb.)
Nominal height: 12m (40 ft.) or higher.

FOR HORIZONTAL ANTENNAS, HEIGHT = MIGHT!

A new antenna concept for combining lightweight wire antennas with lightweight telescoping fiberglass poles, enabling rapid deployment of efficient antennas (within minutes), at heights previously unobtainable with portable products.

Users of the popular Model 404-UL antenna requested an 80m version and Spiderbeam responded with the Aerial-51 Model 807-HD wire antenna. Our 807-HD (heavy duty) uses strong CQ-532 wire for permament installations.

The 807-HD was designed with the same focus on material quality as the other Aerial-51 antennas. It uses insulated, stranded copper-clad steel wire with a breaking strength of 50 kg, and a Teflon-insulated SO-239 coax jack with gold contacts. The Hybrid Balun and RMU are the same as used in the 807-L portable version, but in this heavy duty version the Balun is also potted with Epoxy for better weather protection. This combination of Balun and RMU optimizes resonance of the antenna on all bands, while assuring the antenna and feedline are not plagued with problems caused by common mode current, as most competitive OCFD products are.

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Features

	80m	40m	30m	20m	17m	15m	12m	10m	6m
SWR (typical)*	Less than 1.8	Less than 1.5	Less than 8	Less than 1.6	Less than 1.6	Less than 1.5	Less than 2.7	Less than 1.5	Less than 2.2
Max. Power SSB/CW	600w	600w	150w with tuner	600w	600w	600w	600w	600w	600w

*SWR averages near resonance. SWR varies slightly with height and from one location to another. 80m resonance is mid band (IARU Region One).
Tuner required to cover full 80m band. SWR rises towards band ends. Depending on the transceiver’s requirements, an antenna tuner may be required on some bands. DO NOT EXCEED POWER LIMIT ON 30m.

Purchase Spiderbeam Aerial-51 Model 807-HD

Spiderbeam Model 404-UL Ultra Lightweight, Asymmetrical Dipole

For Horizontal Antennas, HEIGHT = MIGHT!!

A new antenna concept for combining extremely lightweight wire antennas with lightweight telescoping fiberglass poles, enabling rapid deployment of efficient antennas (within minutes) at heights previously unobtainable with a portable product.

Model 404-UL is an ultra lightweight asymmetrical dipole for operation on 7 or 8 shortwave bands.

It is constructed using very light, yet strong components. All hardware is stainless steel.

The antenna radiator is made from CQ-534 insulated multi-strand copper-clad steel wire with 1mm outer diameter, which has a very low wind load and weighs only 31 gram (!!) yet it still maintains a breaking strength of 10kg.

The antenna comes with 12m coax which despite the low weight (only 185g) shows only very modest losses (< 1dB on 40m <2dB on 10m). The ultra lightweight matching unit not only matches the coax to the antenna, it also provides excellent chocking resistance to suppress common mode current. Its super light weight makes this antenna ideal for portable use with any of the Spiderbeam telescoping fiberglass Poles. Ideal for SOTA, DXpeditions and weekend camping trips.

Features

40, 20, 15, 10, 6m (No Tuner*)
17, 12m (with Tuner)
200 Watts (SSB/CW)
Weight: 400gr. incl. 12m Coax
Length: about 21m (67 feet)

*Assumes radio will work with 2.5:1 SWR

Purchase Spiderbeam Model 404-UL Asymmetrical Dipole

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