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a leader in business audio technology. Since 1993 our software development team has released more than 80 easy-to-use software

post 14 May 2026

Audio Tools

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EsoftAnywhere DSP & more
Ham radio amateur radio, short wave, CB, DSP software

EME Audio Examples
All Audio in WAV-format and here in MP3-format also

Narrow Audio Filter
Extremely narrow bandpass of this filter with built-in noise blanker and 30 Hz CW filter modules

All Spectrum Electronic

All Spectrum Electronic All Spectrum Electronics Hobby Kits and Electronics Supply

dxengineering Ham Radio Equipment

Dxengineering Ham Radio Equipment DX Engineering Ham Radio Equipment & Supplies

BA-Electronics

BA-Electronics Ba-electronics, a division of products, has added electronic components, test equipment, wire, and supplies to its product offering

4 Band CW QRP Transceiver Homebrew 4-bander cw qrp transceiver for the homemaker, the design is based on a classic dc receiver and a class c transmitter

The Folded Dipole The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole

15 Element Wire Log-Periodic 7MHz 30MHz Balun necessary, Double-boom 60/18mm, electrically fed = increased gain

Antenna Longwire lunghezza casuale Vi occorre un antenna semplice e di sicuro funzionamento, in pochi minuti potrete costruirvi una Long Wire di lunghezza casuale

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Homebrew T-Match Antenna Tuning Unit Build a new ATU that would cover 160m and also handle much more power

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Calcolo induttanza bobina in aria Nei dati immessi usare il punto (.) come separatore e non la virgola