Is it possible to increase tx power? 3DR Radio V2

Archive
1

I read the documentation that I can only adjust the power to 20dbm that equivalent to 100mw. Disregarding my country regulation, can I increase the power to maybe up to 250mw?

2

No.

3

Yes, but you can brick your radio very easily.

mavproxy -> ArduPlane 3.4.0 -> 433Mhz 3DR radio

User input in red.

The AT commands are:
Setting NETID to match my receiver.
Changing TXpower - obviously there has been a recent regulatory change in my aread to make this legal.
Enabling ECC to see if it could help with my weird errors (it didn’t).
… unknown - the very nice genius who was typing may have explained this bit, but I don’t remember the explanation.
The last two AT commands are save and exit, I think.

Once parameters are set, power cycle the radio to make them active

MANUAL> [color=#FF0000]nsh set port 0[/color]
MANUAL>
MANUAL> [color=#FF0000]nsh start[/color]
MANUAL>

+++
OK
[color=#FF0000]ati5[/color]
ATI5
S0:FORMAT=25
S1:SERIAL_SPEED=57
S2:AIR_SPEED=64
S3:NETID=0
S4:TXPOWER=11
S5:ECC=0
S6:MAVLINK=0
S7:OPPRESEND=0
S8:MIN_FREQ=414000
S9:MAX_FREQ=415000
S10:NUM_CHANNELS=10
S11:DUTY_CYCLE=100
S12:LBT_RSSI=0
S13:MANCHESTER=0
S14:RTSCTS=0
S15:MAX_WINDOW=33
[color=#FF0000]ats3=2005[/color]
ATS3=2005
OK
[color=#FF0000]ati5[/color]
ATI5
S0:FORMAT=25
S1:SERIAL_SPEED=57
S2:AIR_SPEED=64
S3:NETID=2005
S4:TXPOWER=11
S5:ECC=0
S6:MAVLINK=0
S7:OPPRESEND=0
S8:MIN_FREQ=414000
S9:MAX_FREQ=415000
S10:NUM_CHANNELS=10
S11:DUTY_CYCLE=100
S12:LBT_RSSI=0
S13:MANCHESTER=0
S14:RTSCTS=0
S15:MAX_WINDOW=33
[color=#FF0000]ats4=20[/color]
ATS4=20
OK
[color=#FF0000]ats5=1[/color]
ATS5=1
OK
[color=#FF0000]ats6=1[/color]
ATS6=1
OK
[color=#FF0000]at&w[/color]
AT&W
OK
[color=#FF0000]atz[/color]
ATZ

4

[quote=“dave_dave”]Yes, but you can brick your radio very easily.

mavproxy -> ArduPlane 3.4.0 -> 433Mhz 3DR radio

User input in red.

The AT commands are:
Setting NETID to match my receiver.
Changing TXpower - obviously there has been a recent regulatory change in my aread to make this legal.
Enabling ECC to see if it could help with my weird errors (it didn’t).
… unknown - the very nice genius who was typing may have explained this bit, but I don’t remember the explanation.
The last two AT commands are save and exit, I think.

Once parameters are set, power cycle the radio to make them active

MANUAL> [color=#FF0000]nsh set port 0[/color]
MANUAL>
MANUAL> [color=#FF0000]nsh start[/color]
MANUAL>

+++
OK
[color=#FF0000]ati5[/color]
ATI5
S0:FORMAT=25
S1:SERIAL_SPEED=57
S2:AIR_SPEED=64
S3:NETID=0
S4:TXPOWER=11
S5:ECC=0
S6:MAVLINK=0
S7:OPPRESEND=0
S8:MIN_FREQ=414000
S9:MAX_FREQ=415000
S10:NUM_CHANNELS=10
S11:DUTY_CYCLE=100
S12:LBT_RSSI=0
S13:MANCHESTER=0
S14:RTSCTS=0
S15:MAX_WINDOW=33
[color=#FF0000]ats3=2005[/color]
ATS3=2005
OK
[color=#FF0000]ati5[/color]
ATI5
S0:FORMAT=25
S1:SERIAL_SPEED=57
S2:AIR_SPEED=64
S3:NETID=2005
S4:TXPOWER=11
S5:ECC=0
S6:MAVLINK=0
S7:OPPRESEND=0
S8:MIN_FREQ=414000
S9:MAX_FREQ=415000
S10:NUM_CHANNELS=10
S11:DUTY_CYCLE=100
S12:LBT_RSSI=0
S13:MANCHESTER=0
S14:RTSCTS=0
S15:MAX_WINDOW=33
[color=#FF0000]ats4=20[/color]
ATS4=20
OK
[color=#FF0000]ats5=1[/color]
ATS5=1
OK
[color=#FF0000]ats6=1[/color]
ATS6=1
OK
[color=#FF0000]at&w[/color]
AT&W
OK
[color=#FF0000]atz[/color]
ATZ[/quote]

I am thinking if you increase the power barely, you should have increased the supply power amount/adapter on the Tx and Rx board.

Then re-set it.

By default it’s 100mW. 250mW needs more power. The maximum current provided is 0.5A/(1A modern PC) at 5V. So the maximum power can be 2.5/5W theoretically. You are good to go with a PC.