$ 3,500.00
Quantity Available
1
Posted
1 day ago
Description
Ultrabeam UB50 40m to 10m with 6m kit included.
$3500
A special antenna model is the Ultrabeam UB-50, a compact beam which covers 7 to 50MHz. This antenna works as a 3-element fullsize beam on 6 to 20m. From 30m on the two front elements are completely retracted, only the rear element is used as a rotary dipole. To accommodate the required length of the radiator, the CuBe tape is bent by 90° at the end of the tubes and is directed in parallel to the boom. This results in a good SWR and a high efficiency, nearly the same as with a normal dipole radiator. Yet the rotating radius of this antenna is only 5.6m! The element support plates are constructed to support the additional weight of the outer tubes.
$3500
A special antenna model is the Ultrabeam UB-50, a compact beam which covers 7 to 50MHz. This antenna works as a 3-element fullsize beam on 6 to 20m. From 30m on the two front elements are completely retracted, only the rear element is used as a rotary dipole. To accommodate the required length of the radiator, the CuBe tape is bent by 90° at the end of the tubes and is directed in parallel to the boom. This results in a good SWR and a high efficiency, nearly the same as with a normal dipole radiator. Yet the rotating radius of this antenna is only 5.6m! The element support plates are constructed to support the additional weight of the outer tubes.
The UB-50 can be extended with an optional 6m passive element (1220.63). As 3-element beam (without the 6m option) the UB-50 has a gain of approx. 6dB on 6m, and a front/back ratio of 18dB. With the optional, passive 6m element the UB-50 reaches 8.2dB gain on 6m, at a F/B ratio of approx. 20dB.
pIckup only Tangambalanga Vic
Email brenton@posnav.com.au
Cheers Brenton vk3cm
pIckup only Tangambalanga Vic
Email brenton@posnav.com.au
Cheers Brenton vk3cm
Condition of Item
Good
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Contact Details
Country
Australia
State/Region/Province
Victoria
City
Tangambalanga
Post Code
3691
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