x noise
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Antennas : Loop- A Small Wire Loop Antennas for 160 meters
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- Low noise, receive only coax loop antennas for 160 - 10 meters HF bands
[ Hits: 49334 | Votes: 10 | Rating: 6.5 ]
- 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: 65097 | Votes: 61 | Rating: 5.89 ]
- Flags and Pennants
- Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE
[ Hits: 2415 | Votes: 2 | Rating: 1.5 ]
- Low Noise Antenna Connection
- Reducing noise to your antenna can gain your aerial performance, learn how.
[ Hits: 7573 | Votes: 2 | Rating: 6 ]
- Receiving loop for long waves
- Cancelling out unwanted noise sources by DL3FP
[ Hits: 3986 | Votes: 5 | Rating: 5.4 ]
- Interference Cancelling System
- The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
[ Hits: 1865 | Votes: 1 | Rating: 3 ]
- AR2 communications
- Complete catalog of low noise preamplifiers and microwave Gunnplexers.
[ Hits: 1145 | Votes: 1 | Rating: 1 ]
- SSB Electronic USA
- manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
[ Hits: 8401 | Votes: 8 | Rating: 6.12 ]
- W2IHY Audio Products
- Band audio equalizer and noise gate compatiable with ICOM, KENWOOD, YAESU and other radios
[ Hits: 2693 | Votes: 35 | Rating: 8.09 ]
- Psk31
- PSK31 is a digital communications mode which is intended for live keyboard-to-keyboard conversations, similar to radioteletype. Its data rate is 31.25 bauds (about 50 word-per-minute), and its narrow bandwidth (approximately 60 Hz at -26 dB) reduces its susceptibility to noise.
[ Hits: 1441 | Votes: 1 | Rating: 10 ]
- VLF-LF And the Loop Aerial
- The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
[ Hits: 3422 | Votes: 5 | Rating: 5.4 ]
- Morse code ringtone generator
- This page converts text into a morse code ringtone playable on most mobile phones.
[ Hits: 6312 | Votes: 61 | Rating: 4.99 ]
- Thomas distributing
- 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: 22951 | Votes: 22 | Rating: 5.82 ]
- 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: 15513 | Votes: 53 | Rating: 6.82 ]
- DSPBOX
- DOS Freeware, DSPBOX is an attempt to code the Texas Instruments DSK 'C50 in such a way
to make it behave like a commercial DSP noise reduction unit, like the
NIR-12, the TimeWave 599+ and others. Not only the noise reduction function
has been implemented, but automatic notch, AGC and Band Pass have as well.
[ Hits: 2400 | Votes: 0 | Rating: 0 ]
- HamView
- 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: 7559 | Votes: 3 | Rating: 5 ]
- 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: 89789 | Votes: 328 | Rating: 6.2 ]
- 23 cm GaAs FET preamplifier
- On 23cm the best way to obtain a good RX-sensitivity is to use a GaAs-FET in the front-end, since these devices show very low noise figures.
[ Hits: 4050 | Votes: 6 | Rating: 4.67 ]
- QRM and noise reduction
- You will find on these pages my experiences and results on antennas and local/non-local QRM/noise reduction. Using a broadband vertical active magnetic loop and a home made / designed broadband amplifier. Two vertical magnetic Alford loops are used in an array.
Analog and Digital Signal Processing and a dual phase coherent Software Defined Radio (SDR) are used. By PA0SIM
[ Hits: 5085 | Votes: 6 | Rating: 7 ]
- Automotive RFI elimination
- ARRL pdf file on how remove car noise from your radio. Modern vehicles are RF noisy environments. Come learn how to identify and silence yor mobile noise sources, by WA6PDP
[ Hits: 3162 | Votes: 6 | Rating: 6.96 ]
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