Orientation issues with E1820 dongle

T

The_Unbeliever

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Hi there

I played around with a E1820 dongle tonight, and discovered a few interesting things.

11. It is extremely fussy with regards to orientation in the horizontal/vertical level. For good reception it must be flat on its back.
2. It also is extremely fussy with regards to floor height. If I put it too high (1.5m from floor), bad signal. Too low (1m from floor), bad signal. At 1.2m from floor there's a spot with good signal.

Don't know if others experience the same thing.
 
The_Librarian said:
11. It is extremely fussy with regards to orientation in the horizontal/vertical level.
Click to expand...
I noticed this once, I rotated the modem 90 degrees and the signal dropped considerably. After the signal increased again I tried to repeat this but couldn't. At home my Cell-C modem lives in a router and its USB port is vertical, and it is fine there.
The_Librarian said:
For good reception it must be flat on its back.
Click to expand...
What do you mean? Is the Cell-C logo visible?
 
I have weird reception; modem is attached to wall next to TV cable (the only place I found, where it can hang). Finding so far:
* Modem gets -81dBm anywhere in house irrespective of location/orientation, except for magic spot.
* Magic spot is 2m above floor, modem must hang freely on a USB cable attached to TV cable, with "SIM" slide down, facing eastwards with logo, slightly looking upwards at 10 degrees relative to wall, the modem must be 5 degrees to right relative to TV cable. This is only spot at house that can give up to -69dBm, but usually 73-77dBm.
* Is it me or I cannot get 3G in "pinky 3G" area?

Interesting.
 
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The_Librarian said:
At 1.2m from floor there's a spot with good signal.
Click to expand...

It is because it uses your testicles as resonance antenna. ;)

Seriously, play little bit, but be aware about absorbtion of your body, so move it away as possible. It is more healthly too.
 
For E-1820
Modem antenna made from printed strip on a film. This film is wrapped arounf USB socket. Efficiensy of such design is the best to fit INSIDE modem. Much better EASY solution - take 85mm wire 0.35-0.4mm. Must go inside connector TIGHT - then it will switch OFF internal antenna. Push it as mush as it going in (4-5mm). Keep this wire VERTICAL, as polarization of the CellC signal is the same. Working.
 
GRES said:
For E-1820
Modem antenna made from printed strip on a film. This film is wrapped arounf USB socket. Efficiensy of such design is the best to fit INSIDE modem. Much better EASY solution - take 85mm wire 0.35-0.4mm. Must go inside connector TIGHT - then it will switch OFF internal antenna. Push it as mush as it going in (4-5mm). Keep this wire VERTICAL, as polarization of the CellC signal is the same. Working.
Click to expand...

I fear, that antenna socket will be destroyed fast that way (and not covered by warranty).
 
Bull**t! Original antenna connector got the same central pin which engage internal switch!
Make shure that your wire is not very loose inside connector.
 
I have similar magic spots inside the house for the MTN 3G connection on my cellphone. Very weird and not sure what's causing it.
 
I also noticed that. I connected it to the front usb ports and it kept disconnecting and speed was inconsistent. Connected it to the back with extension cable and put the modem on my pc case flat and I get -69dBm (5.08mBps) all the time and it never disconnects or overheat.
 
Jagtiger said:
I fear, that antenna socket will be destroyed fast that way (and not covered by warranty).
Click to expand...

Correct. it can be destroyed very easy! My second-hand E272 came with faulty switch in result of such manipulations, the modem couldn't find any signal. In case of E1820 faulty switch affects only diversity antenna, so you will be able to connect, but at reduced download speeds and - more important - it affects stability of the connection.
 
The_Librarian said:
Yes, flat on its back with the CellC logo visible.

I am not impressed.

In contrast, the Huawei E220 I've got as well get good reception no matter what you do with it.
Click to expand...

Yep i agree - Don't remember seeing tinfoil domes wrapped around any E272's to get signal either, Poynting are probably going to have a record year.
From what i read it sounds like its receive capabilities have been reduced in the process of making it "Mimo ready" - making it a lemon
Don't think it will enter the E272 grade book of fame.
New tech coming thru tho so i guess its part of the stepping stones
 
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