Antentop is FREE e-magazine devoted to Antennas and Amateur Radio and

Since 12 July 2003

Edited by hams

for hams

by RK3ZK @ Co

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Short Path to All articles and topics:

• 144-MHz Antenna for Satellite Communication
• Antenna 'Triplet Quad' for 433 MHz
• Application for HF- VHF radio station
• BA- Butterfly Antenna:20 meters
• Capacitor Code
• Circle Antenna
• FM Radio Channels and Frequencies
• DX Reception: Free e- book
• Inductor Color Code
• Inductor Data
• J-Pole Antenna for 433 MHz
• Key for K1
• Long Delay Echoes
• Lightning Tank Calculator
• Mystery of the Broom Antenna
• One Coil Loop
• Polarization and Related Antenna Parameters
• QRP Transceivers and PAs from Accessible Parts: Free e- book
• RAEM/mm Is My Callsign
• Russian Receiver R- 311
• Russian Receiver R- 326
• Simple Iambic Key on PIC16F628A
• Simple SWL HF- VHF Receiver
• Time Warp
• Tube - Semiconductor Transceiver (TST)
• TV Channels and Frequencies
• UR5WCA Balcony Antenna for 7, 10 and 14 MHz

• 2x GI- 7B PA
• Experiments with the VHF Magnetic Loop
• Experimental CW QRP Transceiver Mosquito 20m
• Field Antenna for FT- 817
• Field Antenna for the 40 meters
• Free e- book: Ideas and projects for QRP
• Gordiev's Knots
• History of RU- QRP- C
• Indoor Helical Antenna for the 20 and 17 meters for K1
• Linear Wire Antennas - Dipoles and Monopoles
• Mysterious Cases of Absorption of Radio Waves
• Old CDs in Ten Band Antenna
• Radio Jamming in the Soviet Union, Poland and others East European Countries
• Radio Signals out of Our Times
• Russian Bipolar Transistors for Transmitters
• Russian/International Field Transistors
• Russian Ham Licence for 1995
• Russian Ham Licence for 2003
• Spreadiong Antennas of Stationary Radio Communication Base
• The Wonderful Beverage Antenna
• Wave kHz/ Meters m

• An absorbing Filter
• Antenna for 900 MHz
• Antennas for Radio Amateurs:Contents and Path to Free e- book
• Broadcasting Receivers of the USSR Wire Radio Centers
• Crystal Sets to Sideband:Contents and Path to Free e- book
• Dipole Nadenenko
• Field Universal HF Antenna RV3DA
• First Steps (Part- I) Beginning of Russian radio industry
• First Steps (Part- II)Beginning of Russian radio industry
• Forgotten Antenna:TV
• Introduction into the Theory of Radiation
• Multirange Trap Antennas
• Log Periodic Antenna for 21, 24, 27, 28 and 30- MHz
• Losses of RF Power when Feeder works at SWR mode
• Old Receiving Magnetic Loop Antennas
• Russian Districts Award
• Russian Transceiver EFIR
• Shunt Vertical Universal HF Antenna
• UW3DI- the Timeless Transceiver
• Wire Metric Diameter/Gauge Standard

• Antenna Tuning Unit for 6-meters
• Basic Methods in Antenna Measurements
• Helical Loop Antenna for the 20-meters Band
• Five Bands Vertical Trap Antenna:HF
• Modern Military HF- Antennas of Communication Cars
• Practical Design of Open- Sleeve Antennas for Upper HF- Ranges
• QRP-Tales
• QRP-QSO without an Antenna
• Simple SSB Transceiver
• Something about Antenna Tuning Units: HF
• The USA Patents of Nicola Tesla
• The Strange Life of Nicola Tesla
• Top Load at Vertical Antennas
• UR5LCV's One Boom YAGI: 3-el 14-MHz & 4-el. 21-MHz
• UR5LCV's One Boom YAGI: 4-el 14-MHz & 5-el. 21-MHz
• UR5LCV's One Boom YAGI: 4-el 21-MHz & 5-el. 28-MHz
• UR5LCV's One Boom YAGI: 5-el 21-MHz & 6-el. 28-MHz
• UR5LCV's YAGI for Hams
• UR5LCV's YAGI for 28-MHz
• UR5LCV's YAGI for 21-MHz
• UR5LCV's YAGI for 14-MHz
• UR5LCV's YAGI for 7-MHz

• 4- Ovals Antenna for 430- MHz
• 4- Ovals Antenna for 430- MHz for mountains
• 5/8Lambda VHF/UHF Antenna
• Current Distribution in the Antenna Loading Coils.
• Design of Antenna UA1DZ. HF
• Epoxies for Towers
• Fastening of Guys
• Folding 145-MHz 3-el YAGI for Mountains
• History of LF-Bands
• Hysteresis at a Coaxial Cable at VHF-Ranges
• LF-Dummy Load
• Loop Antennas. HF
• Loop Antennas for ALE and Frequency Hoping. HF
• Multirange Vertical Antennas. HF
• Old Military HF - Antennas of Communication Cars
• Parameters of Coaxial Cables
• Plasma Antenna Technology. UHF
• QRP-Tales
• Recycling Chokes for the LF-Band
• RBM Radio. HF
• Russian EH-Antennas. HF
• Short 'Rubber Duck' for VHF/UHF Hand - Held
• Simple 430-MHz 3-el YAGI for Mountains
• Simple 430- MHz 4-el YAGI for Mountains
• Tool for Pulling Guys
• Vacuum Tubes
• Wooden Struts
• The Underwater Communication System of Nikola Tesla
• Trap on Coaxial Cable

• Antenna Tower
• Antenna X200.145-MHz
• Bottle Antenna.145-MHz
• Fast Made a Half Wave Antenna for 80 meters
• Field Strength Meter for the 137 kHz Band
• Five Elements VHF Antenna RN1NZ for 145 MHz
• Hand-Held/Car/Truck/House. 27 and 145 MHz Communication
• Gnomic 80-m QRP- Transeiver
• Interferences from Old Power Amplifiers
• J- Antenna for 160, 15 and 10(FM) Meters. Unusual Look to Usual Things
• J. C. Bose. The Inventor Who Wouldn't Patent
• Micro- 80 - 80 m XTAL QRPp Transceiver
• My First QRP- Station
• A Noble Man Without a Nobel
• Old computer's PSU gives useful parts for antennas
• Other Practical Dipole/Monopole Geometries. Matching Techniques for Dipole/Monopole Feeds
• Photos from the Second Russian DX- LFpedition
• QRP-Tales
• Tesla Wireless and the Tunguska Explosion
• Trap in the Main
• Three Band Universal RZ3AE Antenna.HF-Antennas
• the Wireless power Transmission System by Nicola Tesla
• The Work of Jagadish Chandra Bose: 100 Years of MM- Wave Researches

banLast Updated:

March 26, 2008 22:51 ner