BESTER BDM-2 MIMO 4G/LTE ANTENNA, 15-17 DB

[aurel 22]

I think that too, you must find any old satelite antenna dish for such a large distances 

[miloudsatdz 17]

On 12/1/2020 at 4:16 PM, Admin said:

,,, for a distance of 10 km, you need a parabolic offset dish...

hi,Admin I hope you are fine

please can you tell me What are the measurements for this antenna

[Admin 2421]

 

[miloudsatdz 17]

22 minutes ago, Admin said:

 

thank you admin 

not work good in band 1800 mhz ??? 

because  In my country the 4G LTE use band 1800 mhz Only

Edited December 17, 2020 by miloudsatdz

[Admin 2421]

,,,this antenna works well in the 1800 MHz frequency...

[sa3500 21]

2-3 km maximum  

[miloudsatdz 17]

8 hours ago, Admin said:

,,,this antenna works well in the 1800 MHz frequency...

thank you admin

for you help ,I am so happy

[Admin 2421]

,,,miloudsatdz ,,, these are the optimal dimensions....

[Hamza 43]

This for 3G 2100 weld BladI jomy needs a cap if coffer!!!

18 hours ago, miloudsatdz said:

thank you admin

for you help ,I am so happy

18 hours ago, miloudsatdz said:

thank you admin

for you help ,I am so happy

[miloudsatdz 17]

On 12/18/2020 at 11:39 AM, Hamza said:

This for 3G 2100 weld BladI jomy needs a cap if coffer!!!

it not work in 4g 1800 mhz ???

[miloudsatdz 17]

On 2/11/2020 at 1:50 PM, Admin said:

,,, antenna BDM-2 for 1800 MHz...

 

,,, constructive details....

Hi Admin,

I am looking for a 70 ohms version for this antenna, 

can I use 70 ohms RG6 for this Antenna ?

[Admin 2421]

,,, for the 75 Ohm impedance, the antenna must be resized, especially at the distance between the reflector-vibrator - the first director...!!!

[miloudsatdz 17]

2 minutes ago, Admin said:

,,, for the 75 Ohm impedance, the antenna must be resized, especially at the distance between the reflector-vibrator - the first director...!!!

What are the correct measurements when using 75 ohms  at the distance between the reflector-vibrator

[Admin 2421]

,,,it must to be recalculated...!!!

,,,just wait....!!!

[miloudsatdz 17]

4 minutes ago, Admin said:

,,,it must to be recalculated...!!!

,,,just wait....!!!

I'll wait, take your time 

[Antenna gun 3]

I've been waiting for two years, admin

[Antenna gun 3]

On 18/12/2020 at 2:01 PM, Admin said:

,,,miloudsatdz ,,, these are the optimal dimensions....

it receives stronger waves than normal gun is not admin

[Marcello971 2]

On 1/12/2020 at 4:16 PM, Admin said:

,,, for a distance of 10 km, you need a parabolic offset dish...

Hi Admin,

How should be the orientation of the antenna in the image above respect to the parabolic dish? Is there a specific constrain? 

Thanks

[Admin 2421]

[vova.gumerov 22]

приветствую тебя Джоми. Не могу найти оцинковку на 1мм, есть 0,9 латунь. Сильно изменятся параметры или нужно пересчитывать все размеры? Извини, что на русском, пишу с телефона.

I greet you Jomi. Can't find 1mm galvanized, there is 0.9 brass. Will the parameters change significantly or do you need to recalculate all the sizes? Sorry that in Russian, I am writing from the phone.

[Admin 2421]

,,, vova, try not to post so many photos,,, too many useless pictures,I will delete them...!!!

,,, the thickness of the sheet does not influence too much the characteristics of the antenna...!!!

[Harry36 135]

On 12.06.2021 at 10:01 AM, Admin said:

The BDM does not have a focus, but the phase center of the antenna. The phase center of the feed should ideally be in the focus of the parabola. For a higher utilization of the surface of the parabolic mirror, the directivity of the feed should be approximately 10 dBi. Antennas with more or less directivity are less effective as feeds.

[Samir 0]

Salem Admin

je suis débutant dans ce domaine, j'ai pu réaliser mon antenne bester dbm2 1800 mimo avec les caractéristiques et le schéma présenté sur cette page,  pour un câble coaxial de résistance de 70 ohm, malheureusement le résultat est maigre avec un SINR très faible.

ma question est comme suit; est ce que le faite d'augmenter le membre de cercle , passer de 9 éléments à 12 éléments , va améliorer mon antenne ? (tige 10mm, matière des éléments INOX)

merci 

 

 

[Admin 2421]

,,, for coaxial cable with impedance of 75 Ohm another distance between reflector and vibrator is needed...!!!

[Samir 0]

Le 01/02/2022 à 18:22, Admin a dit :

,,, pour un câble coaxial avec une impédance de 75 Ohm, une autre distance entre le réflecteur et le vibreur est nécessaire...!!!

svp, est ce que on  peut avoir un schéma explicatif afin de réaliser mon antenne !

Edited February 2, 2022 by Samir