Search results
Query: 160
Links: 338 | Categories: 4
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The KD1JV "Melt Solder" Digital QRP SWR/Power Meter operates across the 160m to 6m bands, featuring 9.9-watt and 990-milliwatt power scales, a peak hold mode for SSB, and a VSWR scale from 1:1 to 9.9:1. It utilizes a _Stockton directional coupler_ wound on a single binocular core and an _Atmel AVR ATtiny26L_ microcontroller for processing. The design incorporates _W7EL diode compensation_ in a non-inverting amplifier feedback loop to address diode voltage drop and non-linear behavior at low power levels, with software corrections applied for improved accuracy, particularly at QRP power levels up to 5 watts. Construction details include parts placement, transformer winding instructions for #26 magnet wire, and calibration procedures using a 1.5V alkaline battery or an oscilloscope with a 50-ohm dummy load. Packaging options are discussed for fitting the board into an Altoids tin or a deeper Whitman’s Sampler tin, with considerations for battery life extension by adding a third or fourth battery. Accuracy tests performed at 7 MHz compare readings against a True RMS power meter based on an _Analog Devices AD8361_ chip, showing typical deviations of 0-5% across various power levels. -
A half sloper antenna for 160 meter band Italian translation of a WD8DSB article appeared in a QST issue during 1998. This article presents a **Reduced-Size Half Sloper Antenna for 160 Meters**, designed for amateur radio operators with limited space. By utilizing a 40-foot tower or a tree, you can build an efficient antenna that slopes down, achieving a 2:1 SWR bandwidth of 120 kHz. This innovative design allows for effective communication on the "Top Band," making it ideal for winter DXing. -
Notes on building a basic wire vertical or horizontal antenna for 160 meters band by L. B. Cebik, W4RNL -
DXMaps.com presents a dynamic, real-time mapping service for amateur radio DX spots, integrating data from traditional DX clusters, _PSK Reporter_, and WSPR networks. The platform visually plots global QSO and SWL activity, enabling users to observe propagation conditions across various bands, from 2200m to >450 MHz. It offers distinct overlays such as the magnetic equator, gray line, moon footprint for EME, and VOACAP propagation predictions, providing a comprehensive view of radio wave behavior. The service allows granular filtering of displayed spots, including options to show only DX-Cluster data, PSK Reporter activity, or WSPR signals. Users can refine the map view by selecting specific bands (e.g., 160m, 20m, 6m, 2m), limiting spots to the last 15 minutes, or displaying only contacts exceeding **2600 km**. Additional features include the ability to toggle grid squares, aurora forecasts, and various amateur radio zones (CQ, ITU). Distinctively, the resource updates automatically every minute, ensuring current propagation intelligence without manual refresh. It also supports specialized views for EME, ionospheric scatter, and aircraft scatter, alongside FM DX and APRS activity. The platform emphasizes the importance of accurate locator information in DX spots to enhance data quality and offers a user manual and FAQ for guidance. -
The H-Pole is a vertical multiband wire antenna for 160-10 meters bands -
A **90-foot tall** top-loaded vertical antenna for the 160-meter band is detailed, constructed from aluminum irrigation tubing. The design incorporates four sets of four guy wires for structural stability, essential for an antenna of this physical size. This _monoband_ vertical is optimized for low-band operation, providing a robust solution for DXing and contesting on 1.8 MHz. The document includes specific construction methods for assembling the aluminum irrigation tubing sections and securing the guy wires. While a full NEC model is not explicitly provided, the physical dimensions and construction materials are sufficient for replication by experienced builders. The antenna's height and top-loading configuration are critical for achieving efficient radiation on 160 meters, particularly in minimizing ground losses. -
This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU -
The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines. -
Sharing beverage antennas with this switch boxes is possible. This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band. -
If you have a small lot and want on 160 meters this is our version of the antenna by K5CBL Troy -
G8ODE 160 m Top Band Inverted L Antenna made of 33m horizontal wire in the garden -
Based on a W4TWW project and modified by KN4LF -
Demonstrates a **DX cluster** web service providing real-time amateur radio spot reports, propagation information, and solar data. The platform integrates features such as a gray line map, **DXCC** tracking, and a personal logbook, allowing users to manage their confirmed entities and contacts. It supports various bands from 160m to 70cm, including specific filters for modes like FT8/FT4, and offers both web and Telnet access for spotting and monitoring. The service provides graphical representations of spot reports, detailing activity across different frequency bands and modes (CW, SSB, digital). Registered users gain access to advanced functionalities, including personalized filters and tools for calculating DXCC status. The platform also includes a classifieds section and options for mobile access, catering to a broad range of amateur radio operators interested in DXing and contesting. -
Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W. -
Based on VK5BR's Z-Match and designed for High RF Power covers 160 to 10 meters by VK6YSF -
Homebrew balanced-L antenna tuner. Covers 160-10m. Designed specifically for balanced feedlines. -
If you want an antenna resonoant on the 160 meters band this is a possible solution, but of course, need space. -
Pictures of the 160 meters dipole antenna at W5JGV -
The Joystick antenna was used many years ago as an all band vertical HF antenna under restricted space situations that would cover from 80 meters thru 10 meters with a tuner and was a great commercial success Some hams even had success with it on 160 meters. -
Making a 4:1 balun with a nescafe coffee jar lid and a toroid -
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Contruction manual to build a 4:1 balun, it has good performance from 160 through 10 meters. -
The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe -
The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF -
This high antenna require a large ground composed by 40 radials. It's not very handy expecially in windy situations but is very powerfull in pile-ups. In italian -
A 3.42-meter (11-foot 2-inch) extended-length mobile antenna project is presented, detailing its evolution from an initial 1.65-meter design. W5JGV shares his journey in optimizing mobile HF performance, noting that increasing the top whip length significantly improved radiation efficiency by reducing coil losses and allowing for larger wire gauges. The article includes a comparative table illustrating substantial gain increases, with the 3.42-meter version showing up to 40.6% efficiency on 21.2 MHz compared to a half-wave dipole. Construction details are thoroughly documented, from the use of hard-wall copper pipe for mast sections to the fabrication of custom loading coils. The author explains the necessity of an insulating brace for self-supporting coils and details a unique rotational alignment mechanism for off-center mounted coils to prevent snagging on overhead obstructions. He also describes a "Z" winding technique for 75-meter and 160-meter coils, which minimizes copper losses and manages dielectric losses. The resource provides specific loading coil data, including wire gauge, number of turns, coil length, and inductance values for bands from 18 MHz down to 2 MHz. It emphasizes that these coils may require fine-tuning based on individual vehicle and whip configurations, suggesting an antenna tuner for optimal mobile station operation across multiple HF bands. -
Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band. -
A really simple receiving antenna for 80 and 160 meter dxing by WA2WVL -
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Makers of motorized antennas covering 6 to 160 meters -
A potpourri of 160-Meter vertical antennas and modeling issues, inverted-L, 3-element parasitic array, 1/4-wavelength monopole -
KN4LF article about a 1/4 wave fan inverted L antenna for 80 and 160 meters band -
40-80-160 meter band linear amplifier -
Bill Orr W6SAI ham radio techniques. Improving ground connection, computer analysis of the antenna, modelling sample antennas pdf file -
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The FL-2100Z amplifier referenced in the following images is the 6-Band model covering 10m thru 160m (no WARC bands) and not the 9-Band version that included the WARC bands. Modifications, schematics and manual -
The 6 Band Inverted L Antenna MK3 is a versatile multiband antenna designed for amateur radio operators. This antenna covers 160m, 80m, 40m, 20m, 15m, and 10m bands, making it suitable for a wide range of HF communications. The design is based on a W3DZZ configuration, incorporating traps for optimal performance. The MK3 version features a sturdy 5/8th CB mast, replacing the original timber mast, which enhances durability against harsh weather conditions. The antenna's construction allows for effective operation, particularly on the 40m band, where it has been successfully used to contact distant locations including ZL, VK, and Antarctica. Constructing this antenna requires careful attention to detail, especially regarding the radials and grounding. The traps resonate at specific frequencies, and additional resources are available for building coaxial traps. The antenna is designed to work efficiently without an ATU on the lower bands, while higher bands may require tuning. This project is ideal for both beginner and intermediate operators looking to enhance their station with a reliable multiband antenna. -
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Pictures and calculated values for this home made magnetic loop antenna for the 160 meters band by HB9MTN -
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160m T Antenna broadcast design by Guglielmo Marconi has been built and is used by Jim NN4AA on 160m. Article by G7LRR -
This page is a short description of the four phased verticals system i've build and used. It is primarily intendend to be used on the lower bands 160m, 80m, 40m. -
updated original manuscript, article published in January 1989 QST by Richard L. Measures, AG6K, April 1988 -
Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V -
An easy to build single wire antenna for 160 and 80 meters with a better than 2 to 1 swr across the 80 meter band by K5GP -
An article on TX and RX antennae for the low bands 80 and 160m by EI7BA -
How to build a multi-band dipole antenna with a single coax feed. Instructions for a 160M antenna that will fit in the space that a 75M dipole will with almost as good of results as a full size 160M dipole.
