Total posts : 45366
Being unlicensed is a proud tradition that is helped by events like the “Transmitter Challenge,” because it brings attention and discussion about the world’s most intelligent hobby (the one possible exception being hobby doctor).
Pity that rational discussion was viewed by some as personal attack, but even hurt feelings haven’t muddied the overall beneficial result of so much part 15 publicity.
If one comparison was overlooked in trying to test the transmitters on equal footing, it is this:
Whereas the certified transmitters all have particular antennas under which certification was granted, and deliberately were employed in making the measurements, the same cannot be said for the AMT5000.
In the case of the AMT5000 a minimal starter antenna is supplied with the kit in the form of a 10-foot white wire so the device can be tested right away after construction.
It is common knowledge that better antennas can be attached to the AMT5000 in any form desired by the user, and performing an antenna upgrade may reasonably be expected to enhance the performance.
As I’ve said before, but was ignored at the time, the fiberglass pole used to suspend the white-wire antenna has unknown properties that, if a helical-wire were embedded as is sometimes the case, would place a capacitive drain against the antenna and lower the result.
There is yet another variable that has not been disclosed or questioned, but was mentioned to me in a private e-mail, which I will leave alone at this time until we see if someone else mentions it.