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Summary of Contents for RM Italy BLA350 PLUS
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Page 1: User Manual
BLA350 PLUS Solid State Compact HF 300W Linear Amplifier User Manual Revision 1.0 April 2019 Costruzioni Elettroniche srl http://www.rmitaly.com... -
Page 3: Specifications
Introduction The RM Italy BLA350 Plus is a fully automatic compact 300W HF linear Amplifier, that builds on the success of the previous model. It now features a hardware protection circuit for output impedance mismatch that is lightning fast ensuring the safety of the power transistors in the event of high VSWR on the antenna connector. -
Page 4: Quick Start Guide
Connect the ANT output connector ([) of the BLA350 Plus to VSWR/Power meter and ATU if required or directly to the antenna if resonant at the operating frequency desired. Connect the PTT output cable from the transceiver to the PTT input (_) of the BLA350 plus. (BLA350 Plus PTT input is Active Low). -
Page 5: Front / Rear Panel Description
Front / Rear Panel Description Front Panel LCD Display - displays amplifiers operating parameters and menu system Standby / On - In standby the amplifier does not amplify the incoming signal. Menu adjustments can be made in this mode OK /SSB - Menu setting conformation and SSB RTX delay ’on’ / ’OFF’, if the amplifier is used in VOX mode SET - Menu Switch AUT / MAN - Auto or manual band filter mode... -
Page 6: Installation
AC network verify that the AC voltage is in accordance with that which is printed on the rear panel of the BLA350 Plus. The use of the BLA350 Plus with an AC line voltage outside of that stated may result in per- manent damage. The warranty does not cover damage sustained from this condition or from the use of incorrect fuses. - Page 7 depends on how the equipment is connected and the type of antenna used. There are both argu- ments both for and against the stereotypical RF station ground. In addition to this is that light- ning and static protection for the antenna is an additional subject in itself, however this should be kept external to the building and will not be covered here.
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Page 8: Operation
‘CW delay’ on the trans- ceiver is adjusted accordingly so that when the key is pressed there is a predetermined delay to allow the BLA350 Plus RTX relay to switch from RX to TX before RF appears on the input. Initial settings If required it is necessary to tune the antenna before utilising the amplifier. -
Page 9: Ssb Delay
ALC trim- ing the SET, (^), switch and select the selected mer on the rear panel of the BLA350 plus until the power is set to 10W then press briefly the ’OK’... -
Page 10: Front Panel Controls
LCD display in the top right hand cor- of the BLA350 Plus and that there is a suitable an- ner. tenna connected to the ANT, ([), output connector. - Page 11 Error Frequency mended that under this condition the BLA350 Plus is If the input frequency to the BLA350 Plus is outside not switched off, as the cooling fans will cool the am- of the specified limits the amplifier will shutdown, plifier down much faster.
- Page 12 The figures below show the typical performance of the the BLA350 Plus amplifier. However due to component tolerances and AC supply voltage each amplifier will show some small variation compared to the data shown below. Protection Cause LCD Display Reset...
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Page 13: Warranty
Input Drive and Power output. The BLA350 Plus should give full output power with approximately 10-12W of drive. Excessive input power should be avoided and the amplifier always used in a responsible manner. If excessive input power is used the amplifier will signal an error and above 15W input it will return an alarm signal and block transmission.
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