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What is an EWE Antenna, comparisons, performance and homebrew plan

Two meter fm simplex ham radio list.

Manuals of butternut antennas

Hogar de Don Guido, the hotel and amateur radio station owned and managed by Guido Rosillo HC8GR

The Icom PCR1000 review by GW0KIG

QRP kits for Radio Amateurs

7 Band OCF Antenna project by W0HC

The webpage provides guidance on working 6 Meter DX, focusing on effective operating habits, preparation, and knowledge of the band. It emphasizes the importance of monitoring, clear frequencies, and using CW for weak signals. It also mentions the significance of knowing countries and individual stations on the air to increase chances of working DX. The page recommends utilizing resources like newsletters and websites to stay updated on 6-meter activity and offers suggestions for improving operating skills.

Phased antennas elements use radiated fields from multiple elements to produce nulls.

A magnetic loop antenna working from 30 to 15 meters with 100W

Homebrew VNA capable of both transmission and reflection measurements from 0.05 to 60 MHz

A set of utilities for the SSTV enthusiasts. SSTV signal generator, to generate SSTV audio signals from a bitmap. SSTV Signal Viewer to demodulate SSTV signals, anf SSTV Image Denoiser to removes noise from the pictures. By VE3NEA.

SWR Graphing Software for Amateur Radio by KD4UDY, shareware

Microwave parts for ham radio and experimenters.

Professional & amateur observations

CWQSO allows you to practice sending and receiving morse code in a real QSO. You can send CW via the mouse buttons or an attached paddle, the CW you send is displayed on CWQSO

Filter design software. A program designed to expedite the design and analysis of lowpass (and highpass) filters with nearest 5% component values. SVCfilter is 32-bit Windows electrical filter design software nicely written to help the radio amateur, technician or engineer design and analyze lumped-element lowpass and highpass filters.

This is a Ham Radio Software Transceiver for Amateur Radio. Software works in Windows, Mac and Linux. HamSphere is a community for Ham Radio operators and other radio enthusiasts. Amateur radio equipment is not needed. The Transceiver uses java technology and covers all virtual Ham Radio and Amateur radio bands from 160 to 6 meters.

On-line Log for HD8R Galapagos 2021 DX pedition

A two meter Quad antenna project with detailed instructions on how to adjust the Quad gamma match

Collection of audio clips of foreign radio stations, with identification announcements in various languages, signature tunes and jingles, and of course interval signals

Repair and sales of refurbished, point-to-point, digital microwave radios manufactured by Alcatel and Digital Microwave Corporation (DMC).

Bird wattmeters and extras accessories

Geographical atlas using radial projection

Common problems and improper operations of Yaesu FL 2100 RF power amplifier

Mods collection for the Icom IC-7000 at mods.dk

An homemade fan dipole antenna for 20 30 40 meter bands, setup in a 15 meter wide garden. The longest leg for 40 meter is folded to fit in the 7.5 m

PRC-38S Combat Ready 30 Meter CW Rig Steve Yates - AA5TB

Microstrip Patch Antenna Calculator determines the length and width in millimeters of a rectangular patch antenna.

An Experimental, High-efficiency, Graphic-Tunable Magnetic Loop antenna and loop controller in a 52 pages PDF presentation with drawings and pictures

A video demonstrating SMD board inside FT-897D to makes the two fans run only when temperature threshold is reached

This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT rotary switch.

Otto engineering is comprised of two divisions otto controls and otto communications. otto controls designs and manufactures a full line of switches and grips used in heavy equipment, aerospace, marine, medical and other demanding applications. otto communications designs and manufactures audio accessories for two-way radios used in public safety, police, fire, retail, hospitality manufacturing and other markets.

This is an Android application used to remotely control several HAM radio Web SDR or any CAT enabled transceiver

This is an experimental CW transceiver for 80m, although the same idea will work on all HF bands

Antique Radio Tubes Sell antique radio tubes, over a thousand different radio tubes in stock

A Moxon rectangle antenna for 2 meters

Designed to keep track of your club's roster

The NiCd Lady Company has been in the business of assembly and distribution of batteries since 1994, supplying government, industry and retail with a wide variety of batteries, and production of assembled products.

Practical applications for end-fed antenna transformers and safe, effective grounding

G0KYA experience on hustler 5 BTV antenna

Demonstrates the construction and implementation of a **two-element phased vertical array** for 40 meters, utilizing _Christman phasing_ techniques. The author, W4NFR, details the process from building individual 1/4-wave aluminum verticals to integrating them into a phased system. The resource covers antenna spacing of 32 feet, elevated radial design, and the critical steps for tuning each vertical to achieve a 1.1:1 SWR before combining them. It also provides insights into calculating precise coax lengths for feedlines and the phasing delay line, emphasizing the use of an MFJ-269 Antenna Analyzer for verification. The finished system exhibits good front-to-back nulls, with an overall SWR ranging from 1.6:1 to 2.2:1, which is managed by an antenna tuner. The project includes detailed photos of the relay box, showing 12 VDC relays capable of handling 5KV, and the control box in the shack for switching between three different antenna pattern configurations. Static bleed-off chokes are incorporated for protection, and the construction emphasizes robust weatherproofing for outdoor elements.

Listen to the Baltimore City Police radio feed, carries all of the police districts in Baltimore City (BPD)

Macintosh shareware, contains the full pool of questions for each of the five exams, and creates sample tests that will vary each time you take them and it will grade your exam.

The GM3VLB Poor Man's Antenna Analyser

Over two decades ago, the Kenwood TS-850S HF transceiver established itself as a robust performer, known for its excellent receiver and versatile operating features. This vintage rig, often found on the used market, continues to be a favorite among many amateur radio operators for its solid construction and reliable performance across the HF bands. Adrian's Yahoo! Group provided a dedicated forum for TS-850S owners to exchange insights, troubleshoot issues, and share modifications or operational tips. Such community-driven platforms were crucial for extending the operational life and maximizing the utility of classic transceivers, fostering a spirit of mutual aid among hams. Discussions frequently covered topics like DSP unit upgrades, common repair challenges, and optimizing the rig for contesting or DXing, reflecting the enduring interest in this particular Kenwood model.

Electronic surplus dealer

Comprehensive information page about bi-directional Beverages, including applications, construction details, and tips.

NN1G 30m 1W QRP transceiver by AA5TB

Supplier of Radio Telescopes and associated equipment since 1994.