Smaller, faster and easier to use than the factory instruction manual. Laminated for durability and water resistance, great for GoKits. Compact: 4.5 x 8 inches, fits in a map pocket, small enough to be kept with the radio. Program your ham radio wherever you are at. An essential operating accessory! The PSK20 interfaces direct to a PC and is intended for use with Digipan, although WinPSKse now supports it. The complete transceiver is implemented on a 5.25'x4.5' PCB. The kit took around 8 hours to build, Dave Benson's documentation was of it's normal high standard, reminding me of the old Heathkit manuals.
These 'Nifty E-Z Guide to PSK31 Operation' manuals are the key to everything you always wanted to know but were afraid to ask! Using the very popular DigiPan software as a basis, a detailed step-by-step approach is used for configuring your interface hardware, software, and computer system for PSK31 operation. Detailed, step-by-step instructions and computer screen shots are provided for several Windows operating systems, including Vista. Separate chapters are devoted to the installation and setup of three different PC-to-radio interfaces.
The pros and cons of building a home-brew interface or purchasing several types of commercial interfaces are explored in detail. Detailed information is provided for setting up and operating PSK31 software. Screen shots of typical signals are provided, as well as standard QSO operating procedures and macro definitions. Additionally, the new data modes RSQ Reporting System is described in detail. Separate chapter information is devoted to other digital data modes that can be used with the same hardware, such as FSK/RTTY, CW, Packet, SSTV, EchoLink, and more.
All of this information at your fingertips makes these manuals an ideal resource for deciding what kind of PSK31 hardware and software you want to use for your installation. Experience the fun of PSK! You can get one of these 'Nifty E-Z Guide to PSK31 Operation' manuals the E-Z way, from DX Engineering!
New technology is changing the way receivers are being designed and the IC-7300 is an industry first as an RF, Direct Sampling System is being used in an entry level HF radio. The ability to digitize RF before various receiver stages reduces the inherent noise that is generated in the different IF stages of a radio. We feel the performance of the ‘7300 will far exceed your expectations for a radio considered entry level.
Output Power: 100W (25W AM) RX Frequencies: 0.030-74.800 Receiver Type: Direct sampling RF Direct Sampling System The IC-7300 employs an RF direct sampling system, where RF signals are directly converted to digital data. Then processed in the FPGA (Field-Programmable Gate Array), making it possible to simplify the circuit construction as well as reduce noise that can mask weak signals. The new 'IP+' improves the 3rd order intercept point (IP3) performance improving the ability to copy a weak signal that is adjacent to either a strong interfering signal. In this process, A/D converter is optimized to reduce or eliminate signal distortion. RMDR and Phase Noise Characteristics The IC-7300’s RMDR is about 97dB. (typical value) improving the Phase Noise characteristics by about 15dB (at 1 kHz frequency separation).
The superior Phase Noise characteristics reduce noise components for both receive and transmit signals. At 1 kHz frequency separation (received frequency: 14.2MHz, MODE: CW, IF BW: 500Hz) 15 Discrete Band-Pass Filters The RF Direct Sampling is protected by an array of bandpass filters. The signal passes through one of the fifteen bandpass filters, where signals outside the passband are rejected. To reduce the insertion loss, the IC-7300 utilizes High Q factor coils. Large Color Touch Screen The large 4.3' color TFT touch LCD offers intuitive operation of functions, settings, and various operational visual aids such as the band scope, waterfall function, and audio scope.
Like on the high-end rigs, the waterfall shows a change of signal strength over a period of time and allows you to find weak signals that may not be apparent on the spectrum scope. Use the audio scope function to observe various AF TX/RX characteristics such as microphone compressor level, filter width, notch filter width and keying waveform in the CW mode. Image below shows the Audio scope with the waterfall function and the oscilloscope.
Audio scope function Real-Time Spectrum Scope You no longer have to choose whether to listen to the audio or have the spectrum scope sweep for signals as the IC-7300’s real-time spectrum scope offers the simultaneous operations found in some of the more expensive rigs! This means you can use either the spectrum scope or the waterfall to quickly move to an intended signal while listening to the receiver audio. The ‘7300’s touch screen introduces a 'Magnify' function. So, when you first touch the scope screen around the intended signal, the touched part is magnified.
A second touch of the scope screen changes the operating frequency and allows you to accurately tune. Spectrum scope specifications Scope system FFT (Fast Fourier Transform) Sweep speed Max. 30 frames/second (approx.), selectable from slow, mid or fast Span width 5kHz–1000kHz Resolution 1 pixel minimum (approximately) Waveform display area (vertical axis) 80dB Reference level adjustment –20dB to +20dB Peak level hold function (Max. Hold) ON/OFF/last 10 seconds Other functions Averaging indication Touch screen operation VBW (Video Band Width) adjustment Additional Features:.
Built-in automatic antenna tuner. 101 channels (99 regular, 2 scan edges). SD memory card slot for saving data.
![Digipan user manual Digipan user manual](http://physics.princeton.edu/pulsar/k1jt/wsjtx-doc/images/tx-macros.png)
Cooling fan system. Multi-function meter. CW functions: full break-in, CW reverse, CW auto tuning. SSB, CW, RTTY, AM, FM modes.