audio filter31 links
Manufacturers : Accessories
- Accessories, like universal audiofilter, Mixer interface for sound card, highvoltage powersupply, accessories for 706, hamradio vacation,Roger Beep, Microphons, Headsets and more. Please look
[ Hits: 2847 | Votes: 13 | Rating: 7.8 ]
- Sells leading-edge voice and digital communications products to the world-wide military, government, industrial, and amateur radio marketplaces.
Bluetooth Remote Audio/PTT, Rig Controller with Audio & PTT , HamLinkUSB Rig Control, Noise filtersm antenna analyzers, Multimode Data Controller, TNC, Packet Radio Terminal Node Controller. USB2RS232
[ Hits: 3873 | Votes: 3 | Rating: 5.33 ]
- MFJ Enterprises
- MFJ manufacturer of ham radio antenna products, antenna tuners, antenna analyzers, morse code & CW, SWR wattmeters, antenna accessories , power supplies, audio filters, TVI filters, baluns, coax switches and more
[ Hits: 43503 | Votes: 30 | Rating: 7.09 ]
- Davis RF
- provide electronic and electrical wire, cable, RF connectors, DSP audio filters, rope, non-conductive guy cables for aerial or tower support; plus sundry aerial related parts
[ Hits: 2417 | Votes: 11 | Rating: 7.64 ]
- Idiom Press
- CW keyers, Logikey, and antenna rotator controll like rotor-ez, and active audio low pass filters.
[ Hits: 2622 | Votes: 2 | Rating: 9.5 ]
- Micro908 Kit
- A re-usable control & computing platform for
antenna measurement, PSK31 digital modems, audio filtering, signal source & VFO, memory keyer by AMQRP
[ Hits: 1490 | Votes: 1 | Rating: 10 ]
- Sherwood Engineering Inc.
- Cooling kits, drake filters, speach processors, audio switch boxes, synchronous AM detectors,
[ Hits: 1111 | Votes: 4 | Rating: 5.5 ]
- Audio CW Filter
- A very effective AF Adaptor, with built-in noise blanker and 30 Hz CW filter modules by PA0LQ
[ Hits: 1416 | Votes: 3 | Rating: 5.67 ]
- HamCalc v1.3
- HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations,
Attenuators, Audio Filter design, Coil Winding,
Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps
QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
[ Hits: 27311 | Votes: 105 | Rating: 5.42 ]
- Free programmable DSP-Filter
- Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz
[ Hits: 29723 | Votes: 84 | Rating: 5.83 ]
- WD6CNF DSP Filter
- Audio Digital Filter, two bandpass filters, three notch filters, two noise filters
graphical setting of filter center frequency and bandwidth Drag vertical lines on top of signal,
Microphone input, speaker output
Mono, 5 kHz bandwidth
[ Hits: 4733 | Votes: 2 | Rating: 10 ]
- FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display for Linux. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in the form of scrolling-raster spectrograms and energy vs frequency plots displaying both pre- and post-processed spectra.
[ Hits: 1312 | Votes: 3 | Rating: 9 ]
- Program designed to do spectral analysis and real-time audio filtering on reception of audio signals for EME, VLF, SETI applications. Offer support for MTHELL, QRSS, DFCW, NDB, WSJT by I2PHD
[ Hits: 5728 | Votes: 11 | Rating: 8.55 ]
- Spectrum Lab
- DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more.
Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
[ Hits: 46660 | Votes: 54 | Rating: 7.08 ]
- A freeware program to dig out weak signals buried in noise, functionally similar to the excellent FFTDSP of AF9Y, but with the added bonus of real time audio filtering of the incoming signals. Just point and click with the mouse, and the selected signal will stand out from the QRM and noise.
[ Hits: 7167 | Votes: 3 | Rating: 5 ]
- Audio processor for SSB transceiver
- This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
[ Hits: 1381 | Votes: 1 | Rating: 1 ]
- Low Pass Audio Filter
- 440 Hertz peaked low pass audio filter experiments
[ Hits: 869 | Votes: 1 | Rating: 7 ]
- Hombrewing an HF Transceiver
- This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
[ Hits: 4350 | Votes: 6 | Rating: 8.33 ]
- The smk-1 on 20m
- Taking the venerable SMK-1 design to 20m and adding an RF amp, audio filter, and a TiCK Keyer ... by Wayne McFee, NB6M
[ Hits: 872 | Votes: 0 | Rating: 0 ]
- 30 m Band Direct Conversion Receiver
- The direct conversion receiver described consists of only a bandpass filter, mixer IC, VFO and audio filter. With only 22 parts, this simple circuit should take a few hours at the weekend to construct.
[ Hits: 714 | Votes: 1 | Rating: 4 ]
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