Description
KL-503HD: The KL-503HD amplifier can take input power up to 35 Watts, operates on AM-FM-SSB-CW mode, great for 10M Ham band operation. Do not use those cheap “PC type” power supplies on these units! It will cause humming, and noise in your receive! Use only quality power supplies with good filtering.
Specifications:
KL-503HD: High Drive Version
Frequency: 25-30 MHz
Input energy/power: 12-14 A
Input power: 1-35 Watts on all modes
Output power: 300 Watts Max
Max Bypass power: (Amplifier off): 50W Max
Mode: AM-FM-SSB-CW data etc (all narrowband mode)
Transistor: 8 x RM3 Mosfet + 1 x RM4 Mosfet Driver
Fuse: 3 x 10 A
Preamp: 26dB
Input VSWR: 1.1 – 1.5:1
output VSWR max: 2.5:1
Output power level: 6
Electronic switch
Inversion polarity protection
Size: 170 x 295 x 62mm
