two tone oscillator

W0KPH EH Antenna tests - Various tests and designs, with photos of home made EH Antennas,simple and networked, and also sone CAN Antennas.

The Wireless Set No. 19 Priority listing - A site for collectors, users, restorers of the historic World War Two radio, The Wireless Set No. 19, built in the UK and Canada, and used by many Allied armies.

Citizen Radio Network - An intiative to use unlicensed radio services as alternative communications system during extreme emergencies and disasters.

ARRL LoTW - Log of the World by ARRL let hams confirm two-way contacts they have made and use the confirmations as credit toward various awards.

Hall of Science Amateur Radio club - Amateur radio club serving NEW YORK area. Club has fully equipped station,holds two hamfests a year,ve exam ,field day and contesting.

Weather Amateur Radio Network (WARN) - W8NWS is the Cincinnati, Ohio chapter of Skywarn.

Last Two International Priority listing - Do not qrt untill you work me !

Ham humor from our ham universe - Ham radio humor with something for all ages. Check out the letters from a Tennessee hillbilly ham! Have a laugh er two!

NH7C Amateur Radio Social Network - NH7C.com was created with the user in mind and sports many of the latest features available. Whether you have interest in Contesting, QRP, CW, Emergency Communications or any other facet of Amateur Radio, you are welcome here at NH7C.com.

WaveSources - RF and microwave oscillators and synthesizers to 10 Ghz

BitScopes Mixed Signal Oscilloscopes - Robust and affordable PC based mixed signal oscilloscopes for Windows, Linux and Mac. Isolated USB or networked connection to one or more PCs. Data acquisition, waveform generation and multi-user options available.

Magic Band Network - 50 MHz information on antennas, beacons, and frequencies provided by PA4PA

Basics of Radio Astronomy - This workbook was developed to support training for the Goldstone-Apple Valley Radio Telescope, but is a resource applicable to all radio astronomy.

Deep Space Network (DSN) - NASA's worldwide antenna network to support the exploration of the solar system.

Introduction to MFSK and the MFSK16 - A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.

LX Packet Radio Network - Digipeaters List and Map of the Luxembourg Packet Radio Network

C.B. Packet Priority listing - Packet radio in the U.K.and other U.K. radio including 446 and SSB on 11 mtrs

TA-Network - Turkey Network List, Turkish bulletins and Packet downloads.

The KM5ES Weak Signal Homepage Priority listing - This website is for amateur radio op's that use VHF/UHF weak signal communication's. Also homepage for the Sidewinders on Two Radio Club or SWOT.

PropView - PropView is a free application that uses the included VOACAP, ICEPAC, and IONCAP engines to graphically display band openings between two locations over a specified 24 hour period. It can also build schedules for the IARU/HF beacon network and automatically QSY your transceiver to monitor each scheduled beacon.

WinGrid - Calculates grid squares from latitudes and longitudes, the reverse, and calculates distances and headings from two sets of lat/long or grid square. Convert Grid Square to Lat Log and vice versa. Freeware for Windows

Multi-SETI@Home Monitor - 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.

59+ CW  ^pop - Freeware Win32 application can be used for sending CW signal to the transceiver over a COM port or simply listening to Morse code on the speaker. The application is very easy to configure and will allow you to you to add new Morse characters set speed, tone, dash, dot, PTT line delay and other parameters. It is also possible to set shortcuts for call, QTH, name, RST and ANY other QSO field.

HAMIC - The Ham Intelligent Calculator - HAMIC, is a program designed to simplify a number of calculations commonly used by HAMs. It is designed for the HAM radio hobbyist, but may be useful to others as well. HAMIC has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors in series or parallel, or more complex circuits such as L networks or T networks. As well, other calculations such as SWR and reactance conversions are supported. Windows shareware.

WOLF - A proposed new signal format for LF weak-signal work, It can be used for beacons and for two way communication