WiFi/LTE antenna BDM-2

[Admin 2862]

,,,mitiche...please tell me how you posted the images above...!!!???

[clanon 332]

make sure there's GOOD electric contact between inner wire and Excited Disc (that White looks like polyester resin or some dielectric paint)

[mitiche 15]

withe antenna without antenna 

hello sir i didn't get a good result its the same result with or without antenna 

im using the 1800 model and i think my aria is using band 40 

can i make changes to the antenna to get a batter result or maybe im bot using it correctly ? 

i have a TOPLINK model : HW593Pro it hase 4 antennas and im usin the last one from the left side 

[mitiche 15]

On 03/01/2026 at 8:36 PM, Admin said:

,,,mitiche...please tell me how you posted the images above...!!!???

im using postimg.cc

[mitiche 15]

22 hours ago, clanon said:

make sure there's GOOD electric contact between inner wire and Excited Disc (that White looks like polyester resin or some dielectric paint)

yes i scratched it off 

[Admin 2862]

,,,pay attention to the connections to both the antenna and the router...!!!

,,,what kind of connector did you use here...???

 

[mitiche 15]

 the connector i used is from a tv receiver

and  about the soldering it didn't stick to the aluminium so i solder the cable from both ends ands 

should i use another metal for this ? 

and what about the dimensions i found out that my region is using a 40 band 2300 Mhz 

should i cut it to be like the first model?   

[Admin 2862]

Your connector is not good, change it.,,,same with the router connection....!!!!

[clanon 332]

3 hours ago, mitiche said:

 the connector i used is from a tv receiver

and  about the soldering it didn't stick to the aluminium so i solder the cable from both ends ands 

should i use another metal for this ? 

and what about the dimensions i found out that my region is using a 40 band 2300 Mhz 

should i cut it to be like the first model?   

BRASS is great...Copper would be BETTER...(signal is LOST on small little defects on the way from Wireless card trough the antenna final contact point) CONTACT should be FIXED no play...

[clanon 332]

LTE Band 40 uses the 2300 MHz to 2400 MHz frequency range (FIRST the FREQUENCY then the BUILD around SUCH frequency) you seem to be getting NO SIGNAL 2 db is nothing

[Admin 2862]

mitiche...try this,,,,

[clanon 332]

3 hours ago, Admin said:

mitiche...try this,,,,

if the connection is TOO BAD (75 ohms cable on wrong connectors , bad contact impedance high VSWR) it might be switchin to INTERNAL ANTENNA...hence 1-2 dbi gain

[mitiche 15]

okay sir im getting Busy this week ill try this next week thank you for your help 

[miloudsatdz 23]

On 05/01/2026 at 0:00 AM, mitiche said:

withe antenna without antenna 

hello sir i didn't get a good result its the same result with or without antenna 

im using the 1800 model and i think my aria is using band 40 

can i make changes to the antenna to get a batter result or maybe im bot using it correctly ? 

i have a TOPLINK model : HW593Pro it hase 4 antennas and im usin the last one from the left side 

router no support externel antennas 

[Admin 2862]

Your problem is with these two connections....

All LTE BS have X-pol polarization, according to open sources.
Explain why the receiving MIMO antennas are still all set to X- polarization.

So I think you should have two connectors on the antenna.

 

[mitiche 15]

On 10/01/2026 at 0:35 PM, Admin said:

mitiche...try this,,,,

hello sir it's been a while i  was busy with allot of things so yesterday i got som time and i made 2 of this model 

the dbi got from 101 to 84

i isolated tge V plate and I had some trouble fixing the iron wire to the aluminium plate

but im happy with the result 

so next time ill make the V plate with copper plate 

thanks again for your kindness 

[Admin 2862]

,,,this is how the two antennas should be connected at 90 degrees polarization...

[mitiche 15]

6 hours ago, Admin said:

,,,this is how the two antennas should be connected at 90 degrees polarization...

what do you mean should i reposition the antennas to 90% one horizontal and one vertical or the feeds of the antennas ? 

Edited January 31 by mitiche

[Admin 2862]

PS, MITICHE, I WOULD LIKE TO ASK YOU HOW DO YOU POST THE IMAGE ON THIS FORUM...???

[mitiche 15]

ahh okay so the feeds should be placed like this okay ill do it now and see the difference 

[mitiche 15]

2 hours ago, Admin said:

PS, MITICHE, I WOULD LIKE TO ASK YOU HOW DO YOU POST THE IMAGE ON THIS FORUM...???

i did like so but i got the same result 84 Dbm 

[mitiche 15]

so i got this 

can i use it with the antennas ? 

[Admin 2862]

,,,yes,you can only do it with a single antenna with 3-7 elements...!!!

[mitiche 15]

will it  be better if so please give me the dimensions for band 40 

i want to try it 

Edited January 31 by mitiche

[Admin 2862]

17 minutes ago, mitiche said:

will it  be better if so please give me the dimensions for band 40 

i want to try it