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UB20-MX  /  UB40-MX

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The models UB20 and UB40 differ from UB50 MX for the size of the elements and boom and why 
they work in a configuration 2 elements moxon on the lower frequency.

With regard to the assembly instructions of the curves and side elements, they are absolutely

identical to those of UB50 described in this manual.

On these two models the PVC guide tubes will be installed on both the external antenna 
elements. 

The figures show the copper tape path that allows the two antennas to act as a 2 elements 
moxon configuration on the lowest frequency at which the model works.

UB20-MX

UB40-MX

Director               Driver1      Driver2                            Director                         Driver1              Driver2

2 elements moxon when work on 20 meter

                                                                           2 elements moxon when work on 40 meters

                     

Содержание UB20-MX

Страница 1: ...MANUAL UB20 UB40 UB50 2 EL 6 40 1 Rev 1 10...

Страница 2: ...l to reach the required length to resonate up to 40 meters Figures 1 and 2 show in red the path and the shape of a C that the folded dipole assumes when operating on 40 meters NOTE This manual only re...

Страница 3: ...e within the curve and the side elements without bending The guide element is composed of two sections of PVC pipe 2 x 1500 total length 3 meters Connect the two sections with PVC joining and tape wit...

Страница 4: ...s a bi adhesive applied during the construction phase that will keep the junction steady in time fig 4 Push the PVC pipe until it reaches its maximum insertion Figure 1 Place the element in the motor...

Страница 5: ...single tube of 800 mm between a curve and the other The UB 50 employs three pipes of 1 400 mm joined together by two fiber joints for a total length of 4200 mm In both cases all the curves and tubes j...

Страница 6: ...g 2 NOTE Clean the joint surfaces of the tubes and curves before applying the sheath Avoid any twisting and movement of the joint until it is completely cool The curves have drain holes make sure they...

Страница 7: ...l in the sense of arrows to adjust parallelism between the antenna elements it is not necessary to lock the T element you can also leave it free to slide so it will always find its natural position 7...

Страница 8: ...bsolutely identical to those of UB50 described in this manual On these two models the PVC guide tubes will be installed on both the external antenna elements The figures show the copper tape path that...

Страница 9: ...H TELESCOPIC ELEMENTS 2 EL 6 40 5 4 m UB20 MX 3 5 m UB40MX 7 4 m UB 50 5 4 m 9 TELESCOPIC ELEMENTS MODEL LATERAL TUBES LENGTH PVC TUBES LENGTH 2 EL 6 40 1 x 0 8 m 2 x 1 5 3 m UB20 MX 2 x 1 15 2 3 m 1...

Страница 10: ...late in models with 3 elements is always at the center boom in cases where it is necessary you can move it toward the director this will provide more space between the central element and Mast Descrip...

Страница 11: ...11 269 cm 231 cm 289 cm 242 cm Nota UB20 UB50 UB40 are models with double driver download the manual Switch...

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