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Query: UK
Links: 691 | Categories: 7
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This is an interactive design package for designing analogue (i.e. hardware) filters made of inductors and capacitors (Ls and Cs). -
Small and inexpensive homebrew HF radio 5W Output, CW SSB AM FM, DSP, Speech Processor, Sprectrum Scope, Watefall Display. mcHF is a small, home-brewed amateur radio project. Firmware is released as open source. -
AM-6154 222MHz grid Conversion Information by N0UK -
The Amateur Radio Society of ROYAL SIGNALS (British Army), 1550 Members. MERCURY Journal issued three times a year (Editor G3NVK) Regular (daily) Nets. Awards and Contests. Own QSL Bureau. E-mail List Server open to all. Regularly updated Web Site (Web Master G3NVK) includes EASYMAIL facility, Guest Book, Photo Gallery, Society Rules, Military Museums. -
Homebrew a compact yagi antenna for 14 Mhz suitable for those with small plots based on a design by AB4GX -
A javascript online calculator of bearing and distances by G4VWL -
Buy old manuals, military radios, kits, receivers online shop -
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Luksa industries design and manufacture mechanically operated aluminum telescoping masts and telescoping tripods to support communications and military antennas -
20 Watt Power Amp for Softrock or for QRP transceivers by M0RZF -
Building a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. -
Dedicated to State-of-the-Art lightweight portable radio. Sotabeams produces and sells amateur radio products dedicated to ham radio portable operations. Antennas, supports and masts, filters, wires and more accessories for amateur radio. -
A DIY project of a WiFi 10 elements Yagi antenna -
Personal Web Site of UX7CQ. Information about Ukraine. Old military radios collection. CW Straight Keys. -
An excellent introduction to ham radio bands, which bands to use and when. -
An home made Butternut HF9V clone antenna by OH2GVB -
Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance. -
A magnetic longwire unun with a T130-2 Iron Powder core by M0UKD -
How to make a half l or quarter l coax cable for a specific frequency -
Free programming software for various of the MicroChip PIC series of micro-controllers by Nigel Goodwin -
60KHz to 60MHz. laboratory quality Vector Network Analyzer project -
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Amateur radio-telescope project of a retired seafarer. -
Rotator Controller Using Arduino and PstRotator project by G4HSK -
Icom Kenwood Yaesu MyDel dealer, offer a wide range of ham radio products, transceivers, antennas, rotators, microphonrs, aerials, dummy loads, rf amplifiers and scanners based in UK -
A range of easy-to-build RFI filters by John Regnault, G4SWX -
UK manufacturer of ham radio accessories, including TNX, SDR receivers, RF Diplexers Triplexers, bandpass filters, iambic memory keyers. -
An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD -
In this youtube video G8GKC M0KKW and 2E0IAJ from Icom UK give a global overview of the ICOM IC-7300 HF 50 70MHz Software Defined Radio transceiver -
Optimizing the ZS6BKW antenna for full HF band coverage often requires specific modifications beyond its standard configuration. This resource details several enhancements, beginning with a simple series capacitor to improve 80m SWR, a technique W5DXP found effective for permanent installation due to its minimal impact on higher bands. Further improvements include a 10-inch parallel open stub for 10m resonance, shifting the frequency to 28.4 MHz with an SWR of approximately 1.8:1, a practical solution for Technician class operators. The document then explores a switchable matching section, adding or subtracting one foot of ladder line at the 1:1 choke-balun, which significantly impacts higher frequency bands and eliminates the need for a tuner on 17m. W5DXP's _AIM-4170D_ antenna analyzer measurements confirm these effects. More advanced modifications involve a parallel capacitor for further 80m SWR reduction, requiring remote switching for multi-band operation, and relay-switched parallel capacitors at specific points on the 450-ohm matching section to achieve low SWR on 60m, 30m, and 15m. These detailed steps, including _Smith chart_ analyses for the challenging bands, aim to transform the ZS6BKW into a truly all-HF-band antenna, reflecting W5DXP's practical experience in antenna tuning. -
Article showing how I've made a mains filter to reduce EMC in the electricity supplying my shack. I've used a type 31 Fair-Rite ferrite core and the video shows how this performs on 160m through to 40m. -
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An Arduino TNC modem project based on KI4MCW source code with pictures and schematics -
The antenna is a VHF side is a 2m moxon, tuned on 145.825 MHz. The driven element of the moxon couples to a driven element for a 5 element 70cms Yagi, tuned on 436.5 MHz. -
Pirate radio recordings, addresses, links and QSLs -
About the clemens match for beam antenna, as an alternative to common gamma matching techniques -
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 -
A Compact 8877 50MHz amplifier and Power supply -
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The 1960s mobile/base antenna returns, double G Whip for base use. -
UKSMG news, message board, and articles dedicated to encouraging amateur radio on 50MHz around the world. -
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 -
New Mexico's largest Amateur Radio gathering. Lots of buying and selling of ham radio equipment and great activities. -
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UK dealer for pmr audio accessories, batteries and cases, audio accessories and airwave tetra products -
Carry a small stock of new and reconditioned parts for both rotators and control boxes for the following makes: CDE/HYGAIN , YAESU , STOLLE. -
List of european vhf uhf beacons by G4URH -
Calculating HF helical whip antenna for mobile or portable operation -
Club in Stoke On Trent, England specialising in training for all classes of Amateur licence in the UK. -
Summits on the Air is an exciting new award scheme for radio amateurs which encourages operation in mountainous and wilderness areas. The sceme is designed to grow into an international awards.