Hola. Hace muy pocos días me llegaron los 3 megas de Jazztel. Navego con el comtrend HG536+ y su wifi usb. Sabiendo que tengo la central a unos 700 metros no alcanzo los 2 megas. Probando modulaciones en el router estos son los datos que me da:
Mode: G.DMT
Type: Interleave
Line Coding: Trellis On
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 28.1 26.0
Attenuation (dB): 30.5 16.0
Output Power (dBm): 19.6 12.5
Attainable Rate (Kbps): 8288 1152
Rate (Kbps): 3072 512
Mode: G.lite
Type: Interleave
Line Coding: Trellis Off
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 11.3 24.0
Attenuation (dB): 28.0 16.0
Output Power (dBm): 16.1 12.5
Attainable Rate (Kbps): 3584 1088
Rate (Kbps): 3072 512
Mode: T1.413
Type: Interleave
Line Coding: Trellis On
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 11.1 26.0
Attenuation (dB): 28.0 16.5
Output Power (dBm): 16.1 12.5
Attainable Rate (Kbps): 3104 1184
Rate (Kbps): 2688 512
Mode: ADSL2
Line Coding: Trellis On
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 12.3 22.0
Attenuation (dB): 30.5 15.4
Output Power (dBm): 0.8 12.4
Attainable Rate (Kbps): 3720 588
Mode: ADSL2+
Line Coding: Trellis On
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 16.1 20.5
Attenuation (dB): 36.0 15.4
Output Power (dBm): 7.6 12.4
Attainable Rate (Kbps): 5948 588
Rate (Kbps): 3069 509
A ver que os parece. Saludos.