I have what I expected to be a Spitz with an EC-25AF. The sticker on the bottom says that’s what it is.
However, I can not lock to Band 66.
My phone is using CA with bands 2 and 66 and seeing about 120Mbps, but the Spitz is using band 2 and only seeing about 14Mbps.
I’m wondering if maybe I got the wrong modem, but I can’t see how to check the modem model from the UI. How can I do that? Or does it just not support locking to 66 for some reason?
Okay, so I got it to lock to band 66 with the following AT command:
AT+QCFG=“band”,2e0,20000000000000000,0
However, I’m seeing a hard limit at 12Mbps. Putting my phone on only B66 (no CA) sees about 45mbps. Any thoughts on a possible bottleneck?
Because my phone is showing 150mbps, and the Spitz is showing about 1/10 of that.
The Quectel docs say this should support CA, which I’m not getting (I just get “ERROR” when I try to check QA status with an AT command), and even so I’m showing 1/10 the throughput of my other device, so something seems off.
So, it’s the right modem. However, the way it caps at 12Mbps and doesn’t vary either faster or slower is giving me the impression of a bottleneck somewhere. Any thoughts on what might cause that?
It may just be coincidence that USB 1.0 spec is 12Mbps, but I’m wondering if there’s a driver issue causing the modem to fall back to USB 1.0 instead of full speed 2.0?