LDG Z-11Pro, Manual

Page 1: ...ner Manual Version 1 1 LDG Electronics 1445 Parran Road PO Box 48 St Leonard MD 20685 2903 USA Phone 410 586 2177 Fax 410 586 8475 ldg ldgelectronics com www ldgelectronics com Copyright LDG Electroni...

Page 2: ...ware Version Readout 11 EEPROM Reset 11 Tuning 11 Advanced Operation 14 Application Notes 15 Mobile Operation 16 When To Use Auto Mode 16 MARS CAP Coverage 16 Theory Of Operation 17 Some Basic Ideas A...

Page 3: ...ferent antennas LDG pioneered the automatic wide range switched L tuner in 1995 From its laboratories near the nation s capitol LDG continues to define the state of the art in this field with innovati...

Page 4: ...ure 7 5 x 5 75 x 1 75 inches Weight 1 5 pounds no internal batteries An Important Word About Power Levels The Z 11Pro is rated at 125 watts maximum power input at most Many ham transmitters and transc...

Page 5: ...tion C Up Manually increase capacitance C Dn Manually decrease capacitance L Up Manually increase inductance L Dn Manually decrease inductance Tune Initiates either a memory or full tuning cycle place...

Page 6: ...ed for indoor use only it is not water resistant If you use it outdoors Field Day for example you must protect it from rain The Z 11Pro is designed for use with coax fed antennas If you wish to use it...

Page 7: ...powered by 12 VDC you can use the same power supply for the Z 11Pro providing the power supply can source the extra 300 mA required by the tuner during a tuning cycle Note that the Yaesu interface cab...

Page 8: ...k www radioshack com sells holders for 4 and 8 cells Mouser www mouser com and Digikey www digikey com sell holders for 2 3 4 6 or 8 cells To install a battery or battery pack inside disconnect your Z...

Page 9: ...he external power supply will not charge the batteries You will need to remove any rechargeable batteries from the Z 11Pro and charge them in an external charger when needed Modern batteries aren t ve...

Page 10: ...the Func button while pressing the second button the status of that function will be displayed on the LEDs Tuning Modes Your Z 11Pro features two distinct tuning modes Auto and Semi In Auto mode a tun...

Page 11: ...e whenever the SWR exceeds the value you set see section on setting Auto Tune Threshold In Semi mode a tuning cycle begins only when you start one by pressing the Tune button regardless of SWR You can...

Page 12: ...han 0 1 seconds Working together your Z 11Pro and DTS 4 Intelligent Antenna Switch makes switching and matching up to four antennas automatic and virtually instantaneous The small size of the DTS 4R r...

Page 13: ...ing near a frequency at which you have already completed a tuning cycle you can reset the tuner very quickly by using a Memory Tuning Cycle Key your transmitter as described above and press and hold t...

Page 14: ...he C Up C Dn L Up and L Dn buttons increase and decrease capacitance and inductance respectively To change these values press repeatedly or hold any of these buttons Then key your transmitter to obser...

Page 15: ...Lo Z Select Func then L Up Full Tune Cycle Tune long press Memory Tuning Cycle Tune Medium press Bypass Restore Tune Short press All LEDs Flash Firmware Version Readout Func C Up L Up Together Exampl...

Page 16: ...tuner to Automatic mode and you re ready to go The tuner will adjust the match as needed whenever you transmit on a new band or frequency You can observe the progress of the match on your rig s SWR me...

Page 17: ...given RF frequency each of these can exhibit resistance and impedance in the form of capacitive or inductive reactance Transmitters Transmission Lines Antennas and Impedance The output circuit of your...

Page 18: ...physics Much of your transmitted power may be dissipated in the tuner as heat never reaching the antenna at all A tuner simply fools your transmitter into behaving as though the antenna were resonant...

Page 19: ...ce a calibrated DC voltage proportional to the forward and reverse RF power levels These two voltages are read by the ADCs in the microprocessor Once in a digital format they are used to calculate SWR...

Page 20: ...onics com Warranty and Service Your product is warranted against defects in parts or workmanship for two years from purchase The warranty does not cover damage due to abuse or exceeding specifications...