The new
RM MLA300 'black line' amplifier is replacing the popular HLA300 series. It is a 13.6 VDC HF broadband linear amplifier suitable for use in the range from 1.8 to 30 MHz with a maximum output of 300W, (Av. power), requiring a maxi-mum input drive of 15W, it has been designed to be used with transceivers with 10W outputs but can be used equally well with any transceiver capable of producing 1 to 15W output.
It uses 4 RF power transistors in two parallel push pull circuits biased in class AB. There are 6 Low Pass Filters with cut-off frequencies of 3, 4, 5, 8, 15, 22 and 31 MHz that greatly reduce unwanted harmonic output to acceptable levels that may be selected manually or automatically.
It features a microprocessor that controls all of the functions of the amplifier and its protection circuits. Protection is provided for excessive input power, excessive output power, excessive load VSWR, out of band operation and exces-sive temperature. The amplifier may be used either in a mobile / portable or fixed station installation.
Specifications General
| Input voltage | : | 13,8 VDC @ 50 A continuous |
| Output | : | 6-fold LED output indicator |
| Modes | : | AM, FM, SSB, CW mode / PTT of Vox |
| Filters | : | 6 built-in low pass filters (3, 4, 5, 8, 15, 22 en 31 MHz) manual or automatic band choice |
| Protection | : | a.o. protected against excessive load SWR and excessive temperature |
| Connectors | : | SO 239 for input and output |
| PTT | : | HF VOX and via RCA female on the backside |
| Housing | : | robust aluminum housing |
Specifications MLA-300
| Power output | : | 300 W (average) |
| Max. power input | : | 1-15 W (all modes) |
| Max. bypass power | : | 50 W (amplifier off) |
| Frequency range | : | 10-160 m., incl. WARC (amateur bands only) |
| Transistors | : | 4 x Macom MRF455 |
| Forced cooling | : | yes, three ventilators on top |
| Dimensions | : | B 190 x D 450 x H 80 mm |
| Weight | : | approx. 3,5 kg |
Dimensions and weight are including packaging
