Dipl.Ing. Klaus Bemmerer AT- 615B Short Form Manual Download | Manualshive

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Table of Programmed Memory Cells (Memory Allocations)

160m Band

30m Band

Memory Cell

Center Freq.

kHz

Memory Cell

Center Freq.

kHz

1800+20k 1810

10100+30k 10115

1820+20k 1830

10130+30k 10145

1840+20k 1850

1860+20k 1870

20m Band

1880+20k 1890

14000+30k 14015

1900+20k 1910

14030+30k 14045

1920+20k 1930

14060+30k 14075

1940+20k 1950

14090+30k 14105

1960+20k 1970

14120+30k 14135

1980+20k 1990

14150+30k 14165

14180+30k 14195

80m Band

14210+30k 14225

3500+30k 3515

14240+30k 14255

3530+30k 3545

14270+30k 14285

3560+30k 3575

14300+30k 14315

3590+30k 3605

14330+30k 14345

3620+30k 3635

3650+30k 3665

17m Band

3680+30k 3695

18060+40k 18080

3710+30k 3725

18100+40k 18120

3740+30k 3755

18140+40k 18160

3770+30k 3785

3800+40k 3820

15m Band

3840+40k 3860

21000+50k 21025

3880+40k 3900

21050+50k 21075

3920+40k 3940

21100+50k 21125

3960+40k 3980

21150+50k 21175

21200+50k

21225

60m Band (US and UK only)

21250+50k

21275

5320+40k 5340

21300+50k 21325

5360+40k 5380

21350+50k 21375

21400+50k

21425

40m Band

7000+30k 7015

7030+30k 7045

7060+30k 7075

12m Band

7090+30k 7105

24890+50k 24915

7120+30k 7135

24940+50k 24965

7150+30k 7165

7180+30k 7195

10m Band

7210+30k 7225

28000+100k 28050

7240+30k 7255

↓

↓

7270+30k 7285

29600+100k 29650

Page 11 of 24

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Summary of Contents for AT- 615B

Page 1: ...alanced Antenna Tuner Model AT 615B Short Form Manual 10 2010 Dipl Ing Klaus Bemmerer RF Communication Electronics Niendorf Middeldor 11 23769 Fehmarn GERMANY Phone 49 4371 869145 Fax 49 4371 869154 www hamware de eMail service hamware de ...

Page 2: ...it can be used in either automatic or manual mode The matching circuit consists of a remotely tuned balanced π circuit The balun is placed at the input of the tuner The Output capacitor is a stepper motor controlled High Voltage variable capacitor The Control Cabinet contains the tuning controls memory location selection Automatic or Manual switching and a display that indicates the memory locatio...

Page 3: ...er line on the display shows these values A manual selector switch is provided for memory selection in the Manual mode Controller Unit LED is lighted when Power Supply operates and Power Switch is off Power Switch L values switchable in 31 steps Never switch with full poser Max switching power 300W Control of the variable output capacitor 1 step corresponds to 0 9 tuning angel Max 200 steps Memory...

Page 4: ... on the LC Display will be erased Cinch Connectors to loop in the key line of Power Amp RF Probe Installation Probe Connector to Controller AT 615 The connection to the Transceiver should made as short as possible To Power Amplifier RF Probe If possible the RF Probe should be attached directly to the antenna jack of the transceiver using an adaptor or a very short cable Page 4 of 24 ...

Page 5: ...ance of the system is purely resistive when matched and is the ideal place for the Balun The regular station SWR meter or the built in meter in the TRX is used as an indicator to match the antenna The capacitors at front end are switched in 256 steps of 17 pF per step The capacitor at antenna side is a variable capacitor of 400 pF The control of this capacitor is by a stepper motor with 0 9 per st...

Page 6: ...acing is 13 62 H x 9 41 W 346mm x 239mm Connect the ground bolt between the two antenna insulators with the lightning rod An application example If the RF Unit is installed outside a small roof or overhang is recommended to protect the unit from direct sun If the tuner is not protected the excessive temperatures inside the cabinet could damage the antenna tuner elements Page 6 of 24 ...

Page 7: ...ck 1 Black Stepper Motor A 14 Blue Bwn 15VDC 2 Wht Blue Stepper Motor B 15 Grey Pink Stepper Mptor C 3 Red Stepper Mptor D 16 Wht Yel 36VDC 4 Blue GND 17 Wht Red Stepper End Position Sw 5 Pink 15VDC 18 Yel Bwn RFU C10 6 Pink Bwn RFU C9 19 Bwn Red L Ctl 2 6 MSB 7 Grey L Ctl 2 5 20 Blue Red L Ctl 2 4 8 Yellow L Ctl 2 3 21 Wht Grey L Ctl 2 2 9 Wht Pink L Ctl 2 1 LSB 22 Wht Grn Input C Ctl 2 8 MSB 10 ...

Page 8: ...ency range of 1 8 to 30 MHz The antenna length is dictated by the space available rather than the usual resonant length It easily covers all amateur bands including WARC using a single wire dipole without traps Traps have long been known to induce losses and antenna s designed using them are frequently limited in overall bandwidth Some possible Installation Configurations ...

Page 9: ...per side exhibit impedances that are very low These very low impedances can be difficult to match and some adjustments to lengths may be necessary Antennas are multiples of a half wave present very high impedances to the tuner and may result in internal arcing of the tuner elements If LAnt LFeeder is small in comparison to the wavelength i e 160m Amateur Radio band the internal tuner elements are ...

Page 10: ... maximum by tuning the TRX and ANT controls so that the reflected power is minimum 4 Store the final values by pressing the momentary switch position Mem In Keeping the same values found switch to the next memory location 14030 30k set you transmitter to 14045 kHz center frequency Watch your SWR Meter if little or no change can be found store this value in memory If changes are necessary follow st...

Page 11: ... 3575 14300 30k 14315 3590 30k 3605 14330 30k 14345 3620 30k 3635 3650 30k 3665 17m Band 3680 30k 3695 18060 40k 18080 3710 30k 3725 18100 40k 18120 3740 30k 3755 18140 40k 18160 3770 30k 3785 3800 40k 3820 15m Band 3840 40k 3860 21000 50k 21025 3880 40k 3900 21050 50k 21075 3920 40k 3940 21100 50k 21125 3960 40k 3980 21150 50k 21175 21200 50k 21225 60m Band US and UK only 21250 50k 21275 5320 40k...

Page 12: ...corrections to bring the SWR to 1 1 use the ANT control knob only Never change L under full power condition When there is a sudden increase of the backward power while the amplifier power is increased most probably an arcing happened in the RF Unit Immediately switch of the transmitter The antenna is too short for this band frequency or it is resonant Example Values for a Matched Antenna Dipole 2 ...

Page 13: ...e 24 x AWG22 0 35mm2 AMP plug Outdoor Cabinet Polycarbonate water tight UV resistant Dimensions L x W x H 14 x 10 2 x 6 5 inches Weight 6 kg 13 lbs Controller 3 rotary encoders are used to adjust tuner elements Tuning Memories 85 automatic or manual selectable Automatic Mode Frequency dependent selection of the memory locations Frequency is sensed by RF probe Displays LCD Display indicating single...

Page 14: ... C L and output C Frequency Memory Location Standby LED LED while tuner is matching Power 15VDC 1 5A and 36VDC 0 5A Metal Bench Cabinet W x D x H 11 x 3 5 x 6 9 inches Weight 1 8 kg 4 lbs Power 15VDC 1 5A and 36VDC 0 5A Metal Bench Cabinet W x D x H 11 x 3 5 x 6 9 inches Weight 1 8 kg 4 lbs Page 14 of 24 ...

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