Deltaloop MULTI 7-28

Product detailed description

DELTALOOP wired antenna for 7-28 MHz bands fed by 450 ohm ladder line.

In order to have very good radiation patterns, the antenna must be mounted vertically as an isosceles triangle (triangle standing on a corner) 6+8+6 m with the feed point at the lower corner and the height of the upper horizontal baffle 10-12 m above the ground.
The antenna feed point of the ladder line antenna is at the bottom corner.

Caution - a vertically or diagonally mounted deltaloop has different radiation patterns, this mounting is not recommended.
The mounting can be done differently according to space possibilities. Horizontally, diagonally, vertically. This will affect the radiation diagrams.
The description of the antenna can also be found on the OK5IM.com website at the link here

Technical data:
- radiator length 20 m
- suitable for 7-28 MHz bands
- an external antenna tuner is required for operation (the tuner built into the tcvr will not tune it)
- 450 Ohm dual line power supply
- length of double line 10 m
- if a coaxial cable will be connected between the tuner and the double line, it is recommended to connect a 1:1 balun between the double line and the coax
- the coaxial cable should be of good quality and as short as possible
- weight 1,8 kg (in the version with CU-PVC cable)
- attachment for hanging

Can be made with any length of ladder line. If you want a twin line longer than 10 m, put the required number of metres of extension in the basket. (e.g. 5 m = 15 m of twin line in total). The ladder line is shown in accesories.

Example of connecting a 450 ohm transmitting double line to a MINI LL balun - transition between double line and coaxial cable.
The balun is not included in the antenna, ordered separately.