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+--- Thread: sudden dive (/showthread.php?tid=150)
RE: sudden dive - erhard52 - 04-14-2025
(04-14-2025, 08:48 AM)XPS Wrote: If the drone is using 2.4GHz for it's video, then yes. DJI uses 5.8GHz for it's video, but there are 2.4GHz systems in use - including repeaters. NexRAD uses 2.7GHz at 500KW of power, which bleeds into the 2.4GHz band too.
i took a quick look at the drone - appended to the word doc -
cannot see any signal - must be me
or more specifically the tinySA setup - maybe with the slow scan of the band (3sec) it does not capture the spikes - DJI uses FHSS
RE: sudden dive - erhard52 - 04-14-2025
i just received the XDP programmer -
so after quick RSSI test i get the following
range test - -65dBm
normal mode: -35 dBm
XDP transmitter about 2 feet apart -
when putting antenna directly on XDP i get like -29 dBm
i will get into the fail safe stuff later
RE: sudden dive - XPS - 04-15-2025
That's all correct. That is showing you the signal strength as the XDP (a transceiver) sees it.
RE: sudden dive - flyingw - 04-15-2025
Those numbers are about the same as what I get with my XPS transmitter modules. I conclude that your XPS transmitter module is working as it should - good news there.
Do the control interruptions at the field happen at around the same time of day?
RE: sudden dive - erhard52 - 04-15-2025
(04-15-2025, 06:57 AM)flyingw Wrote: Those numbers are about the same as what I get with my XPS transmitter modules. I conclude that your XPS transmitter module is working as it should - good news there.
Do the control interruptions at the field happen at around the same time of day?
sadly i had the same interruptions at different sites and time of days.
RE: sudden dive - erhard52 - 04-15-2025
(04-15-2025, 12:34 AM)XPS Wrote: That's all correct. That is showing you the signal strength as the XDP (a transceiver) sees it.
ok good to know.
other question:
when i call
XDP.EXE
then 'search for device'
it says 'no xtremelink device found'
but all the other programs (RSSI etc) work
RE: sudden dive - XPS - 04-15-2025
Did you download the manual for the XDP?
You need to put some devices into binding mode before you can access them.
RE: sudden dive - erhard52 - 04-15-2025
(04-15-2025, 05:33 PM)XPS Wrote: Did you download the manual for the XDP?
You need to put some devices into binding mode before you can access them.
yes i read it and also the program tells you when to put in binding mode. the manual says nothing about the XDP.exe specifically (the unofficial guide)
RE: sudden dive - XPS - 04-16-2025
XDP.exe is used for receivers and transmitter modules. You need to put the device into BINDING mode (not programming mode).
RE: sudden dive - erhard52 - 04-16-2025
(04-16-2025, 10:53 AM)XPS Wrote: XDP.exe is used for receivers and transmitter modules. You need to put the device into BINDING mode (not programming mode).
i understand and i did - what i mean is when i start up the XDP.exe it does not find the XDP.
what are these xxx_update.exe files ? do i need to run them ? because all of them also complain 'XDP/telemetry station not found'
but analyzer.exe and the other .exe run
just wonder what the update.exe do?