HF +6m Multiband Trapped
Moultiband trapped double rotating dipoles. Antenna looks like a small yagi being dipoles placed on  1m short boom.  Both dipoles are parallel powered trought an hard feed line and a  1:1 balun using single coax. 
The short distance between dipoles do not affect radiation efficency. None interaction  noticed.
The basic version perform on  5 bands from 20m and up and all versions perform on 6m too.

Extension kit for 30 or 40m are available for those that get a basic version.

Heavy duty alluminum alloy with stainless steel hardware.
Traps coils use high insulation copper wire on fiberglass insulators, they are rated up 2KW pep ssb.

For a great performance install it at 4-5m over the ground, version having 30 and/or 40m almost 9-10m.


Specifications:
- Gain = 0 dB
- Impedence = 50 ohm
- Front-side = 15 dB
- SWR = Within 1:1,5  (see diagram)
- Boomlenght = 1m
- Radius = from about 3,95m to 5,95m, depends from which version you choose.
- Weight = from about 13 to 16kg , depends from which version you choose.
- Mast clamp 48mm (series) or 60mm (optional)
- Material = alluminum alloy AL6060T6, stainless steel hardware.

- Price (EU citizen):                               Extra EU citizen (tax free)
- PST-DDR5 = 341.79                          - PST-DDR5 = 280.16
- PST-DDR6-30 = 392.84                    - PST-DDR6-30 = 322.00
- PST-DDR6-40 = 416.02                    - PST-DDR6-40 = 341.00
- PST-DDR7 = 466.62                          - PST-DDR7 = 382.48                      

- 30m Kit  = 70.13                                  - 30m Kit  = 57.49 
- 40m Kit = 79.61                                   - 40m Kit = 65.26

- Shipping = call



Info and orders: prosistel@prosistel.it
Multiband trapped double rotating dipoles, basic version featuring on 20-15-10m e 17-12m + 6m





Multiband trapped double rotating dipoles featuring 20-15-10m e 30-17-12m + 6m





Multiband trapped double rotating dipoles featuring 40-20-15-10m e 17-12m + 6m





Multiband trapped double rotating dipoles, top version featuring 40-20-15-10m e 30-17-12m + 6m





Innner trap view.
Copper coil on fiberglass insulator.
  PST-DDR5
  PST-DDR6-30
  PST-DDR6-40
  PST-DDR7
Antenna center

7 bands top version, SWR and return loss diagrams
40m
30m
20m
17m
15m
12m
10m
Double Rotating Dipole