LDG Z-11ProII Operation Manual Download Page 18 | Manualshive

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LDG Z-11ProII Operation Manual Download Page 18

PAGE 18

Set Automatic Tuning SWR Threshold

When the Z-11ProII is in fully automatic tuning mode, it begins tuning any time RF is

present, and the SWR exceeds a preset threshold. That threshold may be programmed to any
desired value between 1.5:1 and 3.0: To set the SWR threshold, press

FUNC

then

L Dn /

Thresh

. The LEDs will show the current setting of the SWR threshold. Press

FUNC

then

L Dn /

Thresh

again to advance through the possible settings.

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Summary of Contents for Z-11ProII

Page 1: ...TIONS MANUAL MANUAL REV A PAGE 1 LDG Z 11ProII 100 Watt Automatic Tuner LDG Electronics 1445 Parran Road St Leonard MD 20685 2903 USA Phone 410 586 2177 Fax 410 586 8475 ldg ldgelectronics com www ldg...

Page 2: ...ic Tuning Mode 13 Manual Memory Tuning 13 Manual Full Tuning 14 Tuning Status Error Indication 15 Tuning Status Reports 16 Advanced Operation 17 Manual Inductor Capacitor Adjustments 17 High Low Z Rel...

Page 3: ...or the ultimate in convenience and portability The new Z 11ProII uses a lower battery voltage than previous versions of the Z 11Pro this means fewer battery cells are required making the Z 11ProII eve...

Page 4: ...ing 25 A idle current Dimensions 8 25 L x 5 0 W x 1 5 H Weight 1 pound 6 ounces without internal batteries AN IMPORTANT WORD ABOUT POWER LEVELS The Z 11ProII is rated at 125 watts maximum power input...

Page 5: ...completely removed Tuning memories are stored in FLASH memory The Z 11ProII has 2 000 frequency memories When tuning on or near a previously tuned frequency the Z 11ProII uses Memory Tune to recall t...

Page 6: ...Connect to antenna system ground TX connector Connect a 50 ohm coax jumper cable from this standard SO 239 connector to the ANT jack on the back of the transceiver RADIO connector Connect the optional...

Page 7: ...s Tuner port Then connect the 1 8 stereo plug on the other end of the ICOM interface cable to the jack marked Radio on the rear of the Z 11ProII Connect the coaxial DC power plug of the ICOM interfac...

Page 8: ...PAGE 8...

Page 9: ...be changed more frequently as 9V batteries typically have low 300 mAh capacity compared to AAA or AA batteries Appropriate battery holders are available from Radio Shack www radioshack com Digi Key w...

Page 10: ...t be used for an extended period of time to prevent possible damage due to battery leakage OPERATION Basic Operation The Z 11ProII is operated from the six front panel buttons Each button has one or m...

Page 11: ...ccessful in tuning on the currently selected frequency the settings for that match will be loaded into the tuner relays and checked to see that an acceptable SWR match is found If memory tuning fails...

Page 12: ...n the Z 11ProII momentarily All four LEDs will flash three times to indicate that the tuner is in bypass mode Press the front panel Tune button momentarily again to recall the previous tuner settings...

Page 13: ...s a preset threshold The Tune LED lights during tuning and the SWR LEDs indicate the SWR during the tuning process Continue transmitting on AM or SSB keep talking until the tuning cycle is complete A...

Page 14: ...atts or less In no case should you transmit more than 125 watts If the memory tune is not successful the Z 11ProII falls through to full tuning cycle At the end of a tuning cycle the LEDs cycle inward...

Page 15: ...SWR results during tuning and will display the final SWR once tuning is complete Tuning Status Error Indication During normal operation the front panel LEDs on the Z 11ProII are extinguished during r...

Page 16: ...ing Status Reports Condition Report Successful tune Outer LEDs light then inner LEDs RF Lost during tune All LEDs blink twice No RF found All LEDs blink three times No match found Leftmost three LEDs...

Page 17: ...ment multiple times or simply hold the button and the button will auto repeat You may also transmit while incrementing or decrementing so that the SWR value is displayed High Low Z Relay Adjustment In...

Page 18: ...me RF is present and the SWR exceeds a preset threshold That threshold may be programmed to any desired value between 1 5 1 and 3 0 To set the SWR threshold press FUNC then L Dn Thresh The LEDs will s...

Page 19: ...nsceiver or mounted remotely The only requirement is that the tuner remains dry If it is desired that the Z 11ProII is positioned farther from the transceiver than the optional cable length allows a c...

Page 20: ...tive The output circuit of a transmitter consists of inductors and capacitors usually in a series parallel configuration called a pi network The transmission line can be thought of as a long string of...

Page 21: ...can measure forward and reflected power simultaneously and show these values and SWR at the same time An antenna tuner is a device used to cancel out the effects of antenna reactance Tuners add capac...

Page 22: ...WR in real time The relays are powered by the DC input or internal batteries The relays are a latching type and so they consume no current when not actively switching Although the microprocessor s osc...

Page 23: ...e information so the best on line support information is available all day and every day The LDG website provides links to product manuals just in case you lose this one When you are thinking about th...

Page 24: ...to be accurate and complete Ask your shipper for a tracking number or a delivery verification receipt This way you know the product arrived safely at LDG Be sure to give us your email address so our...

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