I’ve been researching for a while now on how to further improve my Globe Wimax download speed.
Previously, my plan was 512kbps and I haven’t had a problem achieving that speed after doing some “tricks” that I discussed in my previous posts (http://www.jcmiras.net/surge/p307.htm and http://www.jcmiras.net/surge/p239.htm). I recently upgraded my plan to 1 Mbps, but almost two weeks after, I have yet to achieve a consistent and stable download speed of 1 Mbps, although in some rare (note RARE) instances, download speed reaches to 700kbps - 1 mpbs. Also, during speed testing, download speed, sometimes, pulsate to that range. But what I want is a stable and consistent 1 Mbps.
Currently, my Wimax signal strength is 100% but according the Globe Customer Support, I should also observe the CINR values. CINR should be atleast 15dB, however, they did not guarantee if I should be able to achieve 1 mbps speed once I get a CINR of 15db. My personal assessment is that I still won’t be able to reach that since this is just the boundary of good and bad signal quality. According to some websites about Wimax modems, the CINR value is considered very good if it’s atleast 20 dB. My current CINR is only around 16.5 dB, not good enough I think.
I have done placing my modem in different places of my house but no success so far, to improve the CINR. I also tried to move around the external antenna but it just makes the received signal weaker, which still confirms our previous pronouncement that external antenna is not needed.
I researched about the Wimax modem’s antenna until I found a seemingly reliable source to confirm whether the external antenna is, actually, necessary to improve the Wimax signal. According to the Huawei bm622 modem manufacturer’s website (huaweidevice.com/worldwide/productFeatures.do?pinfoId=2567&directoryId=2742&treeId=742);
Question: Does the external indoor antennas are necessary?
(1) No, because the there are two Built-in Internal Antennas, we can use the external indoor antennas if the signal is terrible (2) Do not connect the antennas when lightning, and the interface is only for indoor antennas not outdoor one.
Base on that statement, the built-in antenna should be sufficient to achieve the desired signal strength/quality, and I believe it is, since my signal strength is already 100% even without external antenna. This is a good discovery so that we could already factor-out relying on external antenna to achieve good Wimax performance. Please note also that the external antenna has only a gain of 10dB. Besides, according to the Globe technicians, the built-in antenna of globe Wimax has higher gain than the external antenna, although I have not confirmed it yet.