I recently received a B542 and have commenced evaluation against a 3G Boron (my preference was to use an LTE Boron but these do not work in Australia with the Particle SIM)
I am puzzled by differences in signal strength. The console warns that the B542 has lower than normal signal strength 35% -102 dBm whereas the 3G Boron shows 100% -72 dBm. The antennas are within 20 cm of each other on my desk and the situation does not change as I move to different locations in my home. I have yet to try different locations across Adelaide (Australia).
The B542 is connected to the Optus network and the Boron to the Vodafone network. This is unexpected since Vodafone coverage in Australia is usually more patchy than either Telstra or Optus.
On the positive side the 3G Boron takes 90 seconds or so to connect to the network whereas the B542 regularly takes 22 seconds.
The round trip time is 500 msec on the Boron but can vary between 500 and 1500 msec on the B542.
Suggestions on how to resolve this conundrum would be appreciated.
The B542 signal sitrength/quality is shown below