Published on: 2021/01/21
Edited on: 2024/06/20
Author: Chavdar Levkov LZ1AQ
Contents
| 1 | Jan-10 | Very Weak Signal Reception with Small Magnetic Loop Antenna |
| 2 | Jan-09 | Приемане на много слаби сигнали с магнитни антени (Very Weak Signal Reception … in Bulgarian) |
| http://www.lz1aq.signacor.com/docs/fa/Weak_signals-mag_loop.htm | ||
| 3 | Jun-11 | Wideband Active Small Magnetic Loop Antenna |
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| 4 | Jun-10 | Wideband Active Small Magnetic Loop Antenna. Protection from Strong Electromagnetic Fields |
| http://www.lz1aq.signacor.com/docs/Wide_Mag_loop_prot_v1/wideband_mag_loop_protection.htm | ||
| 5 | Aug-13 | Experimental Comparison of Small Wideband Magnetic Loops. |
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| 6 | Feb-14 | Single Tone Measurements of Nonlinear Distortions in Wideband RF Amplifiers |
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| 7 | Dec-13 | Receiving Phased Array with Small Electric or Magnetic Active Wideband Elements. Experimental Performance Evaluation |
| http://www.lz1aq.signacor.com/docs/phased-array/2-ele_phased_array11.pdf | ||
| 8 | Apr-15 | Receiving with wideband small active loops in NDB band (250 to 500 KHz) |
| 9 | Sep-15 | Diversity Reception with a Modified SDR Receiver and Small Active Antennas |
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| 10 | Sep-15 | Horizontally mounted small active receiving antennas |
| 11 | Dec-16 | A Periodic Switching Technique to Compare Receiving Antenna Performance in the Presence of Strong Fading |
| http://www.lz1aq.signacor.com/docs/antenna-performance/switching-technique-compare-receiving-antenna-performance.htm | ||
| 12 | Jan-17 | Impact of Resonant TX antennas on the Radiation Pattern of RX Directional Antennas. Detuning of TX Antennas. |
| http://www.lz1aq.signacor.com/docs/resonance-impact/resonance-impact.pdf | ||
| 13 | Jan-17 | Impacts from Non-resonant Conductive Objects on RX Directional Antennas |
| http://www.lz1aq.signacor.com/docs/non-resonant-impact/non-resonant-impact.pdf | ||
| 14 | Jan-17 | Spreadsheet to calculate parameters of small RX loop. WLoopCalc |
| http://www.lz1aq.signacor.com/docs/w-loop-calc-v12.xls | ||
| 15 | Nov-18 | Impact of the Height Above the Ground to the Receiving Performance of a Small Wideband Magnetic Loop |
| 16 | Jun-19 | Active Wideband Directional Antenna with Vertically Polarized Small Loop and Small Dipole |
| http://www.lz1aq.signacor.com/docs/active-wideband-directional-antenna.php | ||
| 17 | May-12 |
Adding an Input Balun in AAA-1 in Dipole Mode to Reduce 2ndOrder IMD Distortions when Asymmetric Signal Source (antenna) is Used Rev.1.1
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| https://active-antenna.eu/tech-docs/adding-input-balun-11.pdf | ||
| 18 | May-12 | Reducing the Noise in Dipole Mode with Common Mode Filter Rev.1.0 |
| https://active-antenna.eu/tech-docs/comm-filter-ftp-10.pdf | ||
| 19 | May-12 | Wideband Small Receiving Loop Simplified |
| https://active-antenna.eu/tech-docs/wideband-small-receiving-loop-simplified.pdf | ||
| 20 | May-14 | Additional Environment Protection of the AAA-1 and VDL-1 Devices |
| https://active-antenna.eu/tech-docs/additional-guarding-aaa-b5.pdf | ||
| 21 | Aug-14 | Radiation Patterns of 2-el. Active Receiving Phased Array for Loop and Dipole Mode |
| https://active-antenna.eu/tech-docs/radiation_patterns.pdf | ||
| 22 | Aug-18 | Receiver Front End Protection When Used with Active Antenna AAA-1 |
| https://active-antenna.eu/wp-content/uploads/2018/03/protection-of-the-receiver-front-end-with-active-antenna-amp.pdf | ||
| 23 | Jun-19 | Filters for Wideband Active Antennas to Reject Strong Input Signals from Broadcasting Stations in LW, MW and FM Bands |
| https://active-antenna.eu/wp-content/uploads/2019/06/input_reject_filters-v21.pdf | ||
| 24 | Apr-22 | Very Short Active Vertical Wideband Receiving Antenna with Capacity Hat |
| http://www.lz1aq.signacor.com/docs/vert_hat_1.pdf | ||
| 25 | May-24 | IMD Distortions in MW Band of AAA-1 Active Antenna Amplifier |
| https://active-antenna.eu/tech-docs/MW_IMD_AAA1.pdf | ||
| 26 | May-24 | Some Notes about CAT Cables Used in AAA-1 Amplifiers |
| https://active-antenna.eu/tech-docs/FTP_CAT_AAA-1_13.pdf | ||
| 27 | May-24 | Dipole Amplifier of AAA-1 Active Antenna |
| https://active-antenna.eu/tech-docs/Dipole_amplifier.pdf | ||
| 28 | May-24 | Maximal Cable Length Calculator for LZ1AQ AAA-1 Active Antenna |
| https://active-antenna.eu/tech-docs/Max_Cable_Len_12.xls |
| 1 | Mar-17 | 2-element Single Mast Wire Beam with 4 Switchable Directions |
| http://www.lz1aq.signacor.com/docs/2-ele_inv-v-lz1abc.pdf | ||
| 2 | Jun-17 | 2-element Single Mast Wire Beam with 4 Switchable Directions (Addendum) |
| http://www.lz1aq.signacor.com/docs/2-element-single-mast-wire-beam-add.php | ||
| 3 | Mar-07 | Балуни и симетрични линии (Baluns and Symmetrical Feeders) |
| http://www.lz1aq.signacor.com/docs/baluni/Baluns&sym_line.htm | ||
| 4 | May-05 | Генератор за настройка на насочена антена. (Transmitter for antenna tuning) |
| http://www.lz1aq.signacor.com/docs/x-gen/X-gen.htm | ||
| 5 | Dec-02 | 2 елементен многообхватен Delta Loop (2 element Multiband Delta Loop) |
| http://www.lz1aq.signacor.com/docs/2ele-delta/2ele-delta.htm | ||
| 6 | May-05 | Добавка към 2-елементен многообхватен delta-loop (Addendum to 2 element Delta Loop) |
| http://www.lz1aq.signacor.com/docs/2ele-delta%20dobavka/Dobavka%20-%202ele%20delta.htm | ||
| 7 | Mar-17 | A Simple and Very Sensitive RF Current Sensor |
| http://www.lz1aq.signacor.com/docs/sensitive-rf-current-sensor.pdf | ||
| 8 | Dec-07 | П-Т QRP антенен тунер (Pi-Tee Antenna Tuner) |
| http://www.lz1aq.signacor.com/docs/Pi_Tee_tuner/P-T_tuner.htm | ||
| 9 | Dec-07 | Антенни тунери (Antenna Tuners) |
| http://www.lz1aq.signacor.com/docs/atuner/atuner.htm |
| 1 | Oct-21 | Using ferrite E-cores for baluns |
| http://lz1aq.signacor.com/docs/e-cores-for-baluns.php | ||
| 2 | Jan-22 | Electromagnetic noise level measurements on 3.5 MHz HF band during car drive |
| http://www.lz1aq.signacor.com/docs/electromagnetic-noise-level-during-car-drive.php |
| 1 | May-05 | Коментар върху допустимите норми за интензивност на електромагнитно поле на което е подложено човешкото тяло |
| http://www.lz1aq.signacor.com/docs/el-mag/el-mag-normi.htm | ||
| 2 | May-05 | Приемо-предавател за 3,5 и 14 МХц - LZ1AQ (Transceiver for 3.5 and 14 MHz. designed 1976) |
| http://www.lz1aq.signacor.com/docs/aq75-trcvr/TransceiverLZ1AQ.htm | ||
| 3 | May-05 | Връзка между звукова карта на компютър и трансивер. (Sound Card Connection to TRX) |
| http://www.lz1aq.signacor.com/docs/sound-trcvr/Sound-trcvr.htm | ||
| 4 | Dec-08 | Управление на трансивер от компютър (PC Control of TRX) |
| http://www.lz1aq.signacor.com/docs/pc-interface/PC-Interface.htm | ||
| 5 | Dec-02 | Мрежов филтър (Mains Filter) |
| http://www.lz1aq.signacor.com/docs/mains-filter/Mains-filter.htm |
Description and Specifications
| 1 | Sep-11 | Amplifier for Small Magnetic and Electric Wideband Receiving Antennas (Model AAA-1) Rev.1.1 |
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| 2 | Nov-14 | Amplifier for Small Magnetic and Electric Wideband Receiving Antennas (model AAA-1B) 1. Description and Specifications Rev.2.0 |
| https://active-antenna.eu/tech-docs/1_ActiveAA_DandS_20.pdf | ||
| 3 | Nov-14 | Усилвател за малки широколентови рамкови и диполни антени (model AAA-1B) |
| http://www.lz1aq.signacor.com/docs/aaa1-bg/active-antenna-amp-description-bg.html | ||
| 4 | May-15 | Model AAA-1C. Addendum to AAA-1B documentation Rev.1.1 |
| https://active-antenna.eu/tech-docs/aaa-1c-addendum.pdf | ||
| 5 | Jun-18 | V1.10 of Control Board. Addendum to AAA-1C documentation Rev.10 |
| https://active-antenna.eu/wp-content/uploads/2018/06/active-antenna-specification-addendum-cntrlbrd_V110.pdf | ||
| 6 | May-20 | Revisión V1.10 de la Tarjeta de Control y Amplificador. Anexo a la documentación AAA-1C |
| https://active-antenna.eu/tech-docs/active-antenna-specification-addendum-cntrlbrd_V110_es.pdf (Spanish translation from Mr. José María Pereira) |
Mounting
| 7 | Feb-12 | 2. Mounting Instructions (Model AAA-1) Rev.1.2 |
| https://active-antenna.eu/tech-docs/2_ActiveAA_Mount_12.pdf | ||
| 8 | Mar-17 | 2. Mounting Instructions Rev.2.1 |
| https://active-antenna.eu/tech-docs/2_ActiveAA_Mount_21.pdf | ||
| 9 | Mar-17 | 2. Инструкция за монтаж (Mounting Instructions Rev.2.1) in Bulgarian |
| https://active-antenna.eu/tech-docs/2_activeaa_mount_20_bg.pdf | ||
| 10 | Jan-15 | 2. Istruzioni di montaggio (Mounting Instructions Rev.2.0) in Italian |
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https://active-antenna.eu/tech-docs/2_activeaa_mount_20-italian.pdf (Italian translation by Mr. Ivano Giacchi IK2RLM) |
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| 11 | May-20 | 2. Instrucciones de montaje (Mounting Instructions Rev.2.1) in Spanish |
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https://active-antenna.eu/tech-docs/2_activeaa_mount_21_es.pdf (Spanish translation from Mr. José María Pereira) |
Antenna construction
| 13 | Dec-11 | 3. Antenna Rev. 1.1 |
| https://active-antenna.eu/tech-docs/3_ActiveAA_Antena_11.pdf | ||
| 14 | May-20 | 3. Antenna Rev. 1.1 (in Spanish) |
| https://active-antenna.eu/tech-docs/3_active_aa_antena_11_es.pdf (Spanish translation from Mr. José María Pereira) |
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| 10 | Jun-21 | 3. Antenna Rev. 1.1 (in German) |
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http://gross-mehssow.de/wp-content/uploads/2021/04/AAA-1-Antennen.pdf (German Translation from Rainer Kamenz DE3RKP) |
Q&A
| 15 | Feb-12 | 4. Questions and Answers Rev. 1.2 |
| https://active-antenna.eu/tech-docs/4_ActiveAA_QA_12.pdf | ||
| 16 | Jun-12 | 4. Questions and Answers Rev.2.1 |
| https://active-antenna.eu/tech-docs/4_ActiveAA_QA_21.pdf |
Control
| 18 | Dec-16 | PC control of AAA-1 active antenna |
| https://active-antenna.eu/tech-docs/pc-control-active-antenna-amp.pdf | ||
| 19 | Dec-16 | PC control of AAA-1 active antenna . Download software |
| https://active-antenna.eu/software/aaacontroller-1.1-bin.zip | ||
| 20 | Jan-20 | Control Board Enclosure for LZ1AQ active antenna. 3D printing |
| https://www.thingiverse.com/thing:4095697 |
| 1 | Jun-14 | Variable Delay Line Kit for Active Antenna Phased Arrays. Model VDL-1 Rev. 1.03 |
| https://active-antenna.eu/tech-docs/variable-delay-line-kit-1_03.pdf | ||
| 2 | Jun-14 | VDL-1 PC Control Software Installation and User Guide |
| https://active-antenna.eu/tech-docs/vdl_direction-switcher-manual-16.pdf | ||
| https://active-antenna.eu/software/dlinecontroller-1.6.1-bin.zip | ||
| https://github.com/potty-dzmeia/DLineController | ||
| 3 | Jun-14 | VDL-1. Keyboard drawings |
| https://active-antenna.eu/tech-docs/vdl-1-keyboard-drawings-1to1.zip | ||
| 4 | Jan-17 | VDL-1 Ground Connections and Baluns |
| https://active-antenna.eu/tech-docs/vdl-ground.pdf | ||
| 5 | Jan-17 | DC voltage distribution requirements in VDL-1 system with AAA-1C amplifiers |
| https://active-antenna.eu/tech-docs/dc-voltage-aaa1-c.pdf |
| 3 | Oct-21 | Ground Loops in TRX-SDR Switch |
| https://sdrswitch.active-antenna.eu/technical-documentation/first-time-operation/ | ||
| 3 | Oct-21 | Tests to Check the Functionality of the SDR/TRX Switch |
| https://sdrswitch.active-antenna.eu/app-notes/ | ||
| 1 | Oct-20 | TRX-SDR Switch Instruction Manual Rev.1.7.2 |
| https://sdrswitch.active-antenna.eu/wp-content/uploads/2020/10/trx-sdr-switch-lz1aq-v1.7.2.pdf | ||
| 2 | Aug-20 | 3D Printed Enclosure for LZ1AQ TRX-SDR Audio Switch |
| https://www.thingiverse.com/thing:4574970 |
| 1 | Oct-20 | TRX-SDR Switch (T/R switch) |
| https://youtu.be/-plJqKtqwpM | ||
| 2 | Oct-20 | Operating CW while listening on your SDR (Software Defined Radio) |
| https://youtu.be/6YeNFDw2cto | ||
| 3 | Dec-20 | Preparing Control Cable for TRX-SDR Switch |
| https://www.youtube.com/watch?v=GPGBzRnLDIw | ||
| 4 | Feb-20 | Static in the Antenna |
| https://www.youtube.com/watch?v=EJ_Cm_WaQQQ | ||
| 5 | Jan-20 | 3D printed box for LZ1AQ active antenna |
| https://www.youtube.com/watch?v=qwTU73yYtg0 | ||
| 6 | Oct-19 | Hexbeam antenna - home made |
| https://www.youtube.com/watch?v=kxeSxBRtiBI | ||
| 7 | Oct-19 | Hexbeam antenna - home made - p.2 |
| https://www.youtube.com/watch?v=f1eMMJaLgP4 | ||
| 8 | Jan-20 | Tuning on CQ 160-Meter Contest, CW 2020. AAA-1 in dipole mode |
| https://www.youtube.com/watch?v=oWqdcp7tWoQ | ||
| 9 | Jan-18 | Active antenna de LZ1AQ for cq ww 160m cw contest 2018 with 230 m long cable |
| https://www.youtube.com/watch?v=GaP7oQ2u9Vs | ||
| 10 | Mar-17 | 2el inverted V antenna for 20m by lz1aq at sp/lz1abc |
| https://www.youtube.com/watch?v=cCRHnCGa7O4 | ||
| 11 | Mar-17 | Portable 2el inverted V antenna for 20m by lz1aq at sp/lz1abc |
| https://www.youtube.com/watch?v=DUrAPMrfz1Y | ||
| 12 | Jan-19 | lz1abc at j42l with my active antenna |
| https://www.youtube.com/watch?v=tqzplvZEt9E | ||
| 13 | Feb-19 | Diversity reception compilation by LZ1AQ |
| https://www.youtube.com/watch?v=GqvmXoqOXCE |