To collect WCMDA or LTE signal logs you could use a scanner or data cards. There is another way to do that: using smartphone. It is easy and feature-filled.
Firstly, we have these tools for this work:
- TEMS Investigation 13.1 on Windows 7
 - HTC Vivid (PH39100)
 - USB cable
 
I will tell you how you can do that step by step. Please read whole article before practising that.
Here we go:
- Plug in USB cable to the computer and HTC.
 - On HTC, open “HTC SSD Test“. You must enable these features on HTC:
- Control Diag Port
 - Control Modem
 - Control RmNet
HTC SSD Test Tool  
 - Open “Device Manager“. Did you see these HTC drivers? If you did, continue with Step 3. If you didn’t, try unplug/plug, restart, reinstall drivers etc. It is a regular driver installation problem (If your manufacturer gives you special drivers, don’t forget to use them). I suggest that a program for this work: USBDeview. You can easily install/uninstall your USB devices with using that program.
- HTC USB Modem
 - HTC Ethernet Adapter – 9k #2
 - HTC Diagnostic Interface – 9K (COMx)
 - HTC Diagnostic Interface (COMy)
Device Manager after HTC driver installation  
 - Open “TEMS Investigation 13.1“. Create a new workspace or open a previous workspace.
 - Probably It will not recognize HTC automatically. If It happens, don’t worry. You can still do that. Just you need to create a manual configuration. Click to lovely little “Start Manual UE Config” button. Then create a manual configuration as It has been shown below. You should choose device type and ports settings carefully. Read your device’s documentation for that.
Manual Configuration on TEMS  - Restart TEMS Investigation and HTC. Unplug and plug in USB cable.
 - Finally, open TEMS Investigation while HTC connected to the computer via USB. Here we are:
 

