AAKEE
Senior Heliman
Location: Boden, Sweden
| Mac_man:
The measuring tool, I dont know the name, Im the DX7 owner and another guy had the equipment at his job.
We measured the power with conductive measurement: stock antenna disabeld and connected the measuring machine via a cable with the same type of connector as stock antenna. This means all output power goes in to the measuring machine. The stock antenna is supposed to give a gain of a couple of db´s(about 2db).
The measuring machine had a maximum power range of 20db(would be the same as 100mw, if I got it right). Thats the reason for flat top, the power in that part seems to exceed 20db/100mw...but this measurement is peak hold, so every burst of power will be seen, even those peak´s that came 5minutes ago.
As I understood it, Dx7 has a transmitting time of 1/10.
I took another pic with the cellphone, will look for it...it was another type of measurement, that gave us the answer how it was above the top that dont show in the first picture I posted.
Seems that the peaks wont go much higher then 20db, perhaps 2-3db more.
When I read the ETSI EN v 1.7.1 I understood that the max allowed power is average but correcded for how many % of the time you really transmit (ie 10% or less for Dx7)..
I read ETSI EN v 1.7.1, but not thorougly enough to do a perfect measurement...I learned a lot when we did this test so we where about to do it again, but then 4 of my closest colleges at my work died in a heli collision, so all of my interrest for this dissapered.
It was 2 months ago so now Im back, we will perhaps do another test again, this time according to the ETSI regulations.
( All this started when a lot og ppl started saying that all Dx7 was illegal, even the EU-type...we were interrested in looking it up.)
I believe that the Dx7 named 2712E ( EU-version ) is legal. |
Mmmm ???
