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News from Pueblo West Amateur Radio Club, Pueblo West, Colorado

An exaustive document on frequency multipliers with a particular attention on ways to generate high frequency signals for microwave

Official web site of the Alaska QRP Club The AK/QRP Club is dedicated to the enjoyment of low power Amateur Radio operations.

Amateur Radio web page of links and info I like

21,145.7 MHz from JN55VF

Six meters dxing pages and shack review

Contest station from Donetsk, UKRAINE

Peace country amateur radio club, as well as links to other sites

Lockheed martin recreation association amateur radio club

Next Generation Beacon hardware platform encompasses both analog and digital modes, i.e. CW FSK and MGM in a mixed mode configuration. The advantage of the mixed mode is that humans can decode the CW FSK by ear and the MGM can be decoded by computers way below what is audible. Therefore the MGM can be used for pre-human-conditions or early warning monitoring.

The Triangle ATV Association is an organization of hams in the Raleigh-Durham-Chapel Hill NC area who communicate by means of our own personal TV transmitters and receivers.

Poole Radio Society G4PRS, located in Poole, Dorset.

G8EPR pye telecoms museum incorporating.. emeregency services & radiotelephone museum of great britain

Upload an ADIF fiel and plot all worked grids in an online map. Support filtering by band, year and can export the output directly into a google map, or a google earth KML file

N.E.W.Comm Net is a (G.M.R.S) General Mobile Radio Service System and Network of fixed and mobile radio communications operators in northeast Wisconsin.

Constructing a high-performance RF spectrum analyzer up to 1000 MHz requires careful attention to component selection, shielding, and circuit isolation. This resource details a project that improves upon the _Spectrum Analyzer for the Radio Amateur_ design by Wes Hayward (W7ZOI) and Terry White (K7TAU), incorporating ideas from Scotty Sprowls' project, particularly his 1013.3 MHz IF bandpass cavity filter. The analyzer utilizes a Mini-Circuits SRA-11 mixer with a sweeping local oscillator from 1013 to 2013 MHz, feeding into a 4-pole copper pipe cavity filter. The design employs a second SRA-11 mixer with a fixed 1024 MHz LO to produce a 10.7 MHz final IF. This signal then passes through narrowband resolution filters and is processed by Analog Devices AD603 and AD8307 ICs for IF amplification and logarithmic detection, driving an oscilloscope in X/Y mode. The project emphasizes modular construction, using salvaged components and double-sided FR4 material for PCBs, with critical notes on minimizing spurious images through effective shielding and proper voltage regulation for each module. Key components include a Z-Communications V585ME48 VCO for the first LO and a Z-Comm V583ME01 VCO controlled by a Motorola MC145151 PLL for the second LO. An optional Hittite HMC307 step attenuator and K&L 5L121-1000/T5000-O/O low-pass filter manage RF input. Tuning procedures for the 10.7 MHz IF resolution filter are also detailed, showing before-and-after spectrum views.

Reviews of the Yaesu FL-2100 series power amplifier at eham

Licensed since February 1991, IK1QBT Tony Gallo shares insights into his extensive amateur radio journey, highlighting his involvement in **DXpeditioning** and contesting. His page lists several callsigns he has operated under, including 3A/IK1QBT, TK/IK1QBT, IA5/IK1QBT, and as an operator for 4U9ITU and 4U0ITU, showcasing a broad range of international activity. Tony's background as an ex-Radio Officer in the Merchant Navy and a Radio Operator for the Italian Maritime Coast Radio Station "ICB/GenoaRadio" provides a unique perspective on radio communications. He is an active member of ARI, INORC, and HSC, and serves as secretary for the Marconi Club ARI LOANO, underscoring his deep engagement within the amateur radio community. His participation in multi-multi operator contest teams like IH9P in the CQWW-CW 2006 and the HQ Italian ARI Contest Team in the IARU HF (2004-05-06) demonstrates a strong commitment to competitive operating, primarily on **CW** and HF bands.

This versatile broadband amplifier is used in several DX Lab projects.

Raspberry Pi to Clublog bridge that consumes broadcasted QSOs from N1MM, transforms the QSOs into ClubLog ADIF format and sends those QSOs in batch or real-time to ClubLog automatically

The Hidden Valleys Amateur Radio Club is a small friendly club located in the hills and valleys of Southwestern Wisconsin.

Located near North Bay Ontario (FN06) about 300KM north of Toronto, the CCC is built on the property of VA3RTW (Bob Williams).

Home of Bosnia and Herzegovina Contest Operators

The Union Métropolitaine des Sans-filistes de Montréal (UMS) operates daily nets on **VE2REM** 147.015+ T103.5, **VE2RYV** 146.655- T141.3, and **VE2RVK** 145.430- T141.3, alongside Echolink VE2UMS-L and DMR TG302273. This Montreal-based club, representing hundreds of radio amateurs, provides information for those interested in amateur radio and serves as a communication hub for its members, including a regularly visited ham radio flea market section. The site also highlights significant club initiatives like the AREDN Mesh Network modernization project and an innovative after-school program. The UMS website details upcoming events such as the 2026 sugar shack invitation, Field Day 2025, and monthly meetings scheduled for September 18, 2024. It also features a live log sheet section and a WEB SDR, offering practical tools for members and visitors. The club's president, Bruno VE2VK, extends a welcome, emphasizing the UMS's role in fostering amateur radio in the greater Montreal region, with contact information provided for inquiries.

Shrine Temple Amateur Radio Club

WA8MCQ modification for the Heathkit HW-7 transceiver

Rewinding solenoid coils and how to article

The IZ3MEZ Web DX Cluster presents real-time amateur radio DX spots across 20 distinct frequency bands, spanning from **LF (2190m)** at 135.7 kHz up to **SHF (QO-100)** at 10499 MHz. It displays the DX callsign, frequency, DXCC entity, spotter callsign, and spotter DXCC entity, along with any accompanying comments. The cluster also lists various operating modes such as CW, RTTY, FT8, FT4, FT2, PSK, and SSTV, and supports special operating activities like QRP/P and specific award programs including IOTA, POTA, SOTA, WCA, and JOTA. The cluster's interface provides a dynamic feed of the latest 50 spots, continuously updated with precise timestamps. It offers direct **Telnet protocol** access for users preferring a command-line interface, with configuration instructions provided. The resource also integrates with other spotting networks like RBN and PSK Reporter, enhancing its utility for DXers and contesters seeking propagation information and activity monitoring across a broad spectrum of amateur radio frequencies.

Keys from around the World

technics, radio astronomy, great links, duplex filter

Eham users product review about the Yaesu VX-170 waterproof vhf ht transceiver

eHam reviews for the Kenwood TM 241 VHF mobile transceiver

Articles and review on the Yaesu FT 817 by OZ9AEC

The 6 Shooter Net is a informal rag chew, swap net, and tech question net held on Sunday nights on 147.570 simplex in the Dallas/Fort Worth metroplex. See our website, www.6shooter.net for more information!

Tips for learning and improving morse code

Eden Valley RS, G0ANT Meets on last Thursday of the month at the Merlin Club Penrith

YI official web site

Two receivers compared, Drake R8A and Palstar R30

W6OPO report on Icom IC-7700 stress test to verify PA integrity under high duty-cycle usage

The GN9120 is an excellent bluetooth type headset. Here an article about GN9120 Wireless Headset Conversion for Ham Radio with PTT

provide reliable access to the APRS Internet Service for users around the world

CEMARC is ARRL Affiliated Council of Clubs representing the Ham Radio Community in Eastern Massachusetts.

AM and vintage radio forum

i4chy 10 ghz tropo eme rs

Collection of Telegraph Keys & related items

Amateur Radio reviews and software setups. Page contains software reviews for a number of Amateur radio software packages, services, and hardware reviews. Setups for various software, contests, hardware, and contest setups.