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The Icom PCR1000 review by GW0KIG

Two meter fm simplex ham radio list.

The skeleton slot antenna design was developed in the UK for TV use soon after WW2. This document describe and adapted version for the 2 meter band

Yaesu FT-2000 Panadapter, using the Softrock 9 Lite, SDR receiver kit

Live Fire Radio Streams From Maryland, Delaware, PA.

SWR Graphing Software for Amateur Radio by KD4UDY, shareware

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

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

On-line Log for HD8R Galapagos 2021 DX pedition

7 Band OCF Antenna project by W0HC

QRP kits for Radio Amateurs

The official site of the 1997 BS7H DXpedition to Huang Yan Dao (a.k.a. Scarborough Reef).

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.

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.

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.

Professional & amateur observations

This modification will expand the tx frequency range of the Yaesu FT-991 from allowing just ham radio bands, to all bands 1.8 - 30MHz and 50-54 MHz.This information is solely for use by licensed members of MARS (Military Affiliate Radio System) or CAP (Civil Air Patrol)

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

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

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

Geographical atlas using radial projection

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

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

Bird wattmeters and extras accessories

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

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.

Designed to keep track of your club's roster

G0KYA experience on hustler 5 BTV antenna

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

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

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

A Moxon rectangle antenna for 2 meters

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

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

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

Opinions on the cushcraf R7 multiband vertical antenna at radiobanter

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.

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.

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.

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.

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

Electronic surplus dealer

The GM3VLB Poor Man's Antenna Analyser

Supplier of Radio Telescopes and associated equipment since 1994.

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.

FT100: the yaesu ft-100 yahoo group

NN1G 30m 1W QRP transceiver by AA5TB

Two meter band antenna

Juste a little demo of the Kenwood TS-570 transceiver by F5UFX

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