Description
The KL 503 HD is a 12V linear amplifier for use in the frequency range 25 – 30 MHz, with a drive power of 1 to 35 W in all modes. The KL 503 HD features a six-position power selector via a a front panel knob and a RX preamplifier with electronic switching, which can be activated via a switch on the front panel.
Specifications:
25-30 MHz frequency for maximum performance, usable from 20 to 30 MHz
Power supply 12-14 Vdc
Input power 1-35 W
Input power SSB 2-35 W
Output power 250 W Max
Output power SSB 300W PEP Max
Current consumption 37A Max
AM-FM-SSB-CW mode
Fuses 3×10 A
Output levels: 6
Electronic switching
Protection against polarity reversal
Maximum bypass power (amplifier off): 50 W
Dimensions 170x295x62 mm
Weight 1.5 kg
Antenna preamplifier 26dB
NOTE: IN ORDER TO ELIMINATE ANY AMPLIFIED HARMONICS FROM THE TRANSMITTER WHICH COULD CREATE INTERFERENCE TO TVs AND OTHER DEVICES WE SUGGEST WITH EACH AMPLIFIER THAT OPERATES WITHIN 30 MHz THE USE OF AN ADDITIONAL LOW PASS FILTER SUCH AS OUR EXCELLENT 35/600 SHOWN BELOW AMONG THE ACCESSORIES
