Poynting1
Member
Coupler development for E220
Sounds mad, but is not really that impossible to link to the E220. Rather then connect with a connector you "couple" using a device which you place against the modem and it couples to the internal antenna and absorbs the signal. It is in turn connected to an external antenna via a cable and there you go!
We have in fact patented a device to do so and sell it for use with normal cellphones (many which also do not have any external antenna connector nowadays). Looks like this ADPT-022-01 Coupler. The problem with this ADPT-A022 is that it was designed for the two voice bands (900 and 1800MHz) and not for UMTS band (2000-2200MHz).
We have had a number of people who have bought it for E220's and when linked to a high gain antenna finds that it improves signal - I know from lab measurements that it could do lots better though. We are busy modifying the insides to make a special 3G version which should work properly. I have seen a working prototype (looks the same with different insides) and hope we have something by early July.
Sounds mad, but is not really that impossible to link to the E220. Rather then connect with a connector you "couple" using a device which you place against the modem and it couples to the internal antenna and absorbs the signal. It is in turn connected to an external antenna via a cable and there you go!
We have in fact patented a device to do so and sell it for use with normal cellphones (many which also do not have any external antenna connector nowadays). Looks like this ADPT-022-01 Coupler. The problem with this ADPT-A022 is that it was designed for the two voice bands (900 and 1800MHz) and not for UMTS band (2000-2200MHz).
We have had a number of people who have bought it for E220's and when linked to a high gain antenna finds that it improves signal - I know from lab measurements that it could do lots better though. We are busy modifying the insides to make a special 3G version which should work properly. I have seen a working prototype (looks the same with different insides) and hope we have something by early July.
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