This model can be amplify 50W for HF radio.
1.Turn on/off switch
2.Auto receive/transmit switch
3.Electrode reversal protect
Specifications
Frequency range  HF( 3-30MHz)
Operate voltage  12-14 Vcc
Input current/power  8-11 A
Input power  3-5 W
Input power SSB  2-10 W
FM Output power  50 W(Input 10W) PEP Max
AM Output power  50 W(Input 10W) PEP Max
Output power SSB  200 W (Input 10W) PEP Max
150W(Input 5W) PEP Max
Working mode  FM- AM-CW-SSB
Blown fuse  1X12A
Dimension  109x125x35 mm
Net weight  305 g.