QRP PROJECT ZM-4 Manual Download

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DL-QRP-AG

Handbucherstellung: Peter Zenker DL2FI email:[email protected]

ZM-4 ATU for symmetrical and unsymmetrical Antennas

Please read the manual compleate for better understanding before you start assembling

Manual Version 1.3UK

Summary of Contents for ZM-4

Page 1: ...de Telefon 49 30 85 96 13 23 e mail support QRPproject de Handbucherstellung Peter Zenker DL2FI email dl2fi qrpproject de ZM 4 ATU for symmetrical and unsymmetrical Antennas Please read the manual co...

Page 2: ...a lot for hard outdoor useage The new ZM 4 easyly tune my 2x20m doublett between 28 and 28 MHz The two diefferent coupling windings help to tune Antennas with very low impedance as Antennas with very...

Page 3: ...right side of old turn Count 8 turns and cut and remove insulation so the ends fit into hole GND 34 and 16 34 16 of 34 Now the remaining part of the main winding This are 18 turns They start at the s...

Page 4: ...sing 2 of them parallel we also have 50 Ohm but less heat problems when tuning with full gallon QRP 100R pair 1 100R pair 2 100R Pair 3 Go on with the caps For all caps there is a second hole in the P...

Page 5: ...B into the enclosure check the solder side of the PCB if all wires have been cut very short directly above the solder If they are too long they may produce a short betwwen PCB and enclosure If ok set...

Page 6: ...black Bananajack SCHWARZ black one wire of symmetrical feeder or counterpoise Buchse ROT one wire of symmetrical Feeder or Longwire endfeed S5 switches between low and high impedance Which you need d...

Page 7: ...2 3auf T130 6 BNC rot schwarz SW 2 C2 Koax Antenne Vom TX 5Wdg 20 Wdg Zur 2 Draht Speiseleitung Schalterstellung Operate Schalterstellung Tune Geschlossen unsymmetrisch C5 220pF SW4 L2 16 Wdg L3 4 Wd...

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