Penntek_TR-25_使用说明书手册

TR-25 Preliminary Operating InstructionsPOWERBANDSIGPUSH RATE7030.00RTT+0.76TR25OFFRITPenntek TR-252 Band 5 W CW XceiverTUNEKEYERTX POWERRF GAINYOLUMELOWPADDLESS3NOHdBATTRefer to the front panel for the location of the switches and controls.The fourrotary controls are pretty much self-explanatory.There is a keyer speed control(5-35 WPM)on the left,then the TX Power(0-5W)adjust pot,an RF Gain control,and a Volume control.The Power on-off switch in at the upper left,and the Bandselector and RIT switch is to the right.This is a 3-position spring return toggleswitch.To change bands,momentarily flip this switch upward and allow it toreturn to the center off position.Do this quickly,and the unit will switch from oneband to the other.If you flip the switch up and hold it up for a short while,thefrequency will be stored in a semi-permanent memory.The display willmomentarily switch to a reverse optical mode showing that the current frequencyhas been stored.There is a separate memory for each band.To recall thismemory,2 quick successive upward clicks are required.To engage the RITfunction with this switch,a quick downward push and release of the toggle isneeded.The orange RIT warning LED will come on,and the display will read outthe offset with 10 Hz resolution as you tune.Another quick downward toggle willdis-engage the RIT function.The knob to the right of the blue OLED display is thetuning encoder.The frequency will change in 10 Hz,100 HZ or 1KHz steps.The