Search results
Query: http:
Links: 15294 | Categories: 0
This query is too generic. Please try adding an additional term to focus your research.
-
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 ITU, headquartered in Geneva, Switzerland is an international organization within which governments and the private sector coordinate global telecom networks and services.
-
Resistor Finder is a program that allows the electronics designer or hobbyist to find a combination of 2 resistors that, when connected in parallel, will provide the best match to a desired resistance.
-
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
-
North Jersey DX Association, home of the ARRL W2 Incoming QSL Bureau
-
Microwave parts for ham radio and experimenters.
-
Audio files to help identify rf noise (rfi). Identify the RFI that interferes with your reception. RFI Noise identification.
-
SWR Graphing Software for Amateur Radio by KD4UDY, shareware
-
-
Eham users review of the Yaesu FT-950
-
-
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.
-
-
CLARC was founded in 1987 as an ARRL Special Services Club and is an IRS 501(c)3 not-for-profit organization serving the NASA/Clear Lake area of Houston, Texas.
-
International Amateur Radio Club at ITU - IARC information and official web site of 4U1ITU IARU club station
-
Repair and sales of refurbished, point-to-point, digital microwave radios manufactured by Alcatel and Digital Microwave Corporation (DMC).
-
The Broward Amateur Radio Club was founded in 1946 and received their ARRL Charter of Affiliation March 2, 1949 and is now one of the largest clubs in the South Florida area today.
-
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
-
PSK Express is a replacement for YGPSK, it is multi-mode and will allow you to use PSK, RTTY or MFSK at various speeds. Requires .Net framework and run under windows, freeware.
-
Bird wattmeters and extras accessories
-
A graphical add-on package to monitor seti@home activity that may be running on multiple computers over a network or multiple instances on the same computer. Runs on Windows or Linux.
-
-
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
-
New Mexico's largest Amateur Radio gathering. Lots of buying and selling of ham radio equipment and great activities.
-
-
UK dealer for pmr audio accessories, batteries and cases, audio accessories and airwave tetra products
-
PRC-38S Combat Ready 30 Meter CW Rig Steve Yates - AA5TB
-
-
It is a simple electronic keyer that proved to be reliable, precise timing and no own phantasy by OK1DX
-
A video demonstrating SMD board inside FT-897D to makes the two fans run only when temperature threshold is reached
-
A very efficient 80 meter Counterpoise antenna designed to reduce ground losses from inadequate radial systems beneath inverted L antennas, a project by DM2GM and DM4IM based on the original K2AV antenna concept.
-
Demonstrates how to construct an automatic band decoder, moving beyond manual selector switches for antenna and filter control. It addresses the challenge of varying band data outputs from different transceivers: Icom rigs provide voltage values, Yaesu rigs use Binary Coded Decimal (BCD), and Kenwood rigs lack direct band data output. The resource highlights a clever solution utilizing logging software like _CT (K1EA)_ and _DX4WIN_ to emulate Yaesu's BCD output via a PC's printer port, making the decoder compatible with any rig. The author details experiences building decoders based on designs by Bob _K6XX_ and Guy _ON4AOI_, noting K6XX's simple TTL chip design and ON4AOI's more comprehensive, opto-isolated unit capable of controlling ten outputs and bandpass filters like the _Dunestar_. It also references a _W9XT_ board design, which Steve Wilson, G3VMW, modified with BD140 transistors for source drivers, emphasizing safety. The author successfully cased an ON4AOI-based decoder in an old modem case, connecting it to an FT1000MP or a PC printer port to drive remote relays and a Dunestar Band Pass Filter.
-
Hamlib is a library aid for software developers wishing to incorporate control of amateur radio hardware into their programs. Hamlib will allow ham radio software authors to concentrate on the user interface and the basic function of the program rather than radio control.
-
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
-
-
The website for the Yucaipa Valley Amateur Radio Club located in Southern California.
-
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.
-
The FCC Lookup System software uses the standard FCC data files in an advanced lookup system for matching a call sign to a user. The software creates index files to allow rapid searches without modifying the FCC data file. Available for both Windows and Linux.
-
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
-