RU || EN 

 

SEARCH  

www.mikelab.kiev.ua

site of Cherkes Mihail

About Programs UR4UEM Letters CV
  
 
Это я
Double antenna 144+430 MHz

>>

  Double antenna

 

Warning! This antenna have impedance 75 Ohm!


Bottles from shaving foam and different deodorants with summary length of 140 sm.

D = 52-53 mm, L = 14-22 sm.





Note small hole in this geg.


As supporting structure there is good a standart plastic sewer with D = 50 mm and L = 1 m.


Relative position of elements. View "from bottom":

View "from top":


Here needed sealing, which may be maked from insulating tape.








Between cable wires very useful will resistor on 10-100 k and power 2 W.




Assembled antenna:

Stop holes by silicon.


Protect metal by paint.


"High voltage" signs.

Installed antenna.


Results of modeling in the MMANA-GAL software.


There no any tuning is needed for this antenna, it works fine just in time.

           
 

>>

  links
RasCalc chkflsh

  E-mail:

mike@mikelab.kiev.ua

.

  ICQ:

315996568

.
.About .Programs .UR4UEM .Letters .CV