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noise
139 links
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about noise on dxzone.com
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Technical Reference : Radio Frequency Interference : Noise Reduction
Site listings
Antennas
- Flags and Pennants
- Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE
[Hits: 1812 | Votes: 1 | Rate: 2.00] Antennas : EH
- W8JI Technical pages
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- Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.
[Hits: 19014 | Votes: 35 | Rate: 8.23] Antennas : Receiving
- 160/80m Coaxial Receiving Loop Antennas
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- Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.
[Hits: 51689 | Votes: 47 | Rate: 5.88] Antennas : Shortwave Antennas : Theory
- Local QRM reduction
- It is not always possible to tackle the sources of local QRM. What remains is trying to reduce the noise level by means of your antenna system.
Learn how to reduce QRM and understand how cancell noises by PA0SIM
[Hits: 577 | Votes: 0 | Rate: 0.00] Ham Radio : Resources Manufacturers : Accessories
- LinkPlus
- LinkPlus products enhance the voice quality of HF SSB amateur. Eliminates virtually all channel noise and interference and greatly strengthens SSB radio signals
[Hits: 713 | Votes: 2 | Rate: 5.50] - Magnecor
- Finally auto ignition noise suppressor wires that really work.
[Hits: 477 | Votes: 4 | Rate: 7.75] - JPS Communications
- Noise reduction products
[Hits: 521 | Votes: 3 | Rate: 8.33] - bhi Ltd
- Design & manufacture of Noise Eliminating speakers and modules for effective removal of unwanted noise & interference from SSB, HF, VHF, FM & UHF using new DSP technology
[Hits: 561 | Votes: 5 | Rate: 5.20] Manufacturers : Amplifiers
- Mutek
- Transverters, amplifiers and low noise preamplifiers
[Hits: 4880 | Votes: 4 | Rate: 3.50] - TE Systems
- Manuf RF power amplifiers wideband+narrowband for Commercial, Defense, OEM and amatuer markets. Also low-noise rf amplifiers
[Hits: 936 | Votes: 0 | Rate: 0.00] Manufacturers : Digital and Packet Radio
- Timeware tech.
- Amateur Radio Products, Noise Reduction Filters, Data Controllers, deviation meter, Software, DSP-RTTY
[Hits: 2673 | Votes: 0 | Rate: 0.00] Manufacturers : Microphones
- W2IHY Audio Products
- Band audio equalizer and noise gate compatiable with ICOM, KENWOOD, YAESU and other radios
[Hits: 2238 | Votes: 35 | Rate: 8.09] Operating Modes : Hellschreiber
- Hellschreiber beacon project
- This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.
[Hits: 1363 | Votes: 5 | Rate: 9.80] Propagation : Observatories
- DRAO 10cm SOLAR RADIO NOISE PATROL
- A graphic presentation of the 10cm solar flux index for the previous eight hours, along with links to copious archival information for previous months and years.
[Hits: 893 | Votes: 2 | Rate: 5.00] Publications : Manuals
- Timewave manuals
- Timewave Documents for User Download, PK-900 Multimode Data Controller, PK-232 Multimode Data Controller, DSP-232 Multimode Data Controller, DSP-9 Noise Reduction and Bandpass Filter, Audio Signal Processor and Noise Reduction Filter, Audio Signal Processor and Noise Reduction Filter for Yaesu SP-5 and SP-6 Speakers
[Hits: 947 | Votes: 0 | Rate: 0.00] Shopping and Services : CB Radio Stores
- Thomas distributing
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- Discount CB & Accessory Distributor. Top Brands such as Cobra, Uniden, Midland, Galaxy, Solarcon, Bandit, Pyramid, Wilson, Superstar, Palomar, Nortstar, President, Dosy, Paradynamics, K40, Nemarc, Road Noise, Astatic, Turner, Telex. Best Prices and exceptional service. 21 Years serving the Communication Trade.
[Hits: 21050 | Votes: 21 | Rate: 6.05] Software : Audio Recorders
- Scanrec Scanner Recorder
- Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.
[Hits: 9999 | Votes: 35 | Rate: 7.03] Software : DSP
- RadioReader-Pro
- Professional software for real-time analysing, demodulation/decoding digital radio-transmission``Demodulation based on the best of the noiseproof correlation algorithms``Demodulation ASK, Morse, FSK, MFSK, CPFSK, GMFSK, FSK4, FSK8, PSK, BPSK, QPSK, FAX
[Hits: 9390 | Votes: 33 | Rate: 5.50] Software : Macintosh
- TCalc
- TCalc+ analyses the Noise and intermodulation performance of radio receiver front-ends.
[Hits: 560 | Votes: 0 | Rate: 0.00] Technical Reference : Amplifiers : UHF Amplifiers
- 432 MHz EME PreAmplifier
- 432 MHz EME low noise amplifier. Circuit, components and image by Christoph Petermann DF9CY
[Hits: 7988 | Votes: 19 | Rate: 5.05] Technical Reference : Audio
- Audio Spectrum Analyzer - OscilloMeter
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- Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
[Hits: 68308 | Votes: 251 | Rate: 6.34] Technical Reference : Preamplifiers
- 144 MHz preamplifier with BF981
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- Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.
[Hits: 13946 | Votes: 25 | Rate: 6.12]
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