Search Results for "q signals"90 links
Antennas : 10M
- A 5 elements Vee log-yagi for 10m
- 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
[ Hits: 4300 | Votes: 9 | Rating: 7.33 ]
- Amateur Radio Info
- Information for Amateur Radio, Echolink,``Frequency assignment,Q Signals, RST, Fcc Part 97, 3rd Party traffic.
[ Hits: 952 | Votes: 0 | Rating: 0.00 ]
- CW Buffer, Amplifier & Preamp Sequencer
- The AMPSEQUENCER board is an advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY and Pre-Amplifier proper sequencing
[ Hits: 1111 | Votes: 0 | Rating: 0.00 ]
- NETCERTUS ampsequencer
- Advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY.
[ Hits: 326 | Votes: 3 | Rating: 9.67 ]
- The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.
[ Hits: 8154 | Votes: 9 | Rating: 7.00 ]
- Q Signals
- Comprehensive Listing of Q Signals
[ Hits: 3272 | Votes: 4 | Rating: 7.50 ]
- USCG Navigation Center DGPS
- Differential Global Positioning Service (DGPS) is a land-based augmentation system that receives and processes signals from orbiting GPS satellites, calculates corrections from known positions and broadcasts these corrections via a Medium Frequency (MF) Transmitter to DGPS users in the Broadcast Site’s coverage area.
[ Hits: 1788 | Votes: 2 | Rating: 4.50 ]
- JT65 Protocol
- JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.
[ Hits: 1068 | Votes: 3 | Rating: 7.00 ]
- DOMINO - new MFSK mode
- A new MFSK mode with IFK by ZL1BPU and ZL2AFP.It is a simple Amateur Radio mode for keyboard QSOs. domino provides digital chat-mode operation on the HF bands, using the well respected sound card technique. Domino will handle TX/RX offsets and mistuning of 200Hz with ease, and will provide perfect copy of drifting signals up to 200Hz/minute!
[ Hits: 2195 | Votes: 7 | Rating: 6.43 ]
- Unusual HF Propagation Phenomena
- This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.
[ Hits: 326 | Votes: 0 | Rating: 0.00 ]
- Yaesu VX-7R Pictures
- Yaesu vx-7r quad-band transceiver, includes several pictures of this yaesu transceiver
[ Hits: 2784 | Votes: 5 | Rating: 8.40 ]
- Software for imitation digital radio-signals: ASK, FSK, BPSK, QPSK, variable speed, any frequency
[ Hits: 1870 | Votes: 2 | Rating: 5.50 ]
- SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.
[ Hits: 1586 | Votes: 2 | Rating: 10.00 ]
- TCUBE is a combination of a Spectrum Analyzer and a Two Tone Generator, with optional quadrature outputs. It can be used for measuring the intermodulation behavior of an audio circuit, and as a general purpose tool
[ Hits: 7992 | Votes: 9 | Rating: 5.00 ]
- Argo is a freeware windows viewer for MTHELL, Slow CW, like QRSS and DFCW. Can be used for EME operations by I2PHD and IK2CZL
[ Hits: 4561 | Votes: 5 | Rating: 5.20 ]
- 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: 6584 | Votes: 3 | Rating: 5.00 ]
- Audio Preamp
- Easy circuit that provide good gain to weak audio signals
[ Hits: 3516 | Votes: 2 | Rating: 3.50 ]
- RFI Information Page
- This page gives information about Radio Frequency Interference, the unwanted reception of radio signals. You'll find out how to determine what is at fault (the transmitter or the receiver) and what you can do in either case.
[ Hits: 6928 | Votes: 4 | Rating: 4.75 ]
- 6m High Pass TVI filter
- Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.
[ Hits: 1351 | Votes: 2 | Rating: 3.00 ]
- Filters and Ferrites in EMC
- This article is about the characteristics and use of various filters and ferrites for solving amateur radio electromagnetic compatibility problems involving breakthrough of amateur signals into domestic equipment such as television sets, video recorders stereo sytems etc.
[ Hits: 757 | Votes: 0 | Rating: 0.00 ]
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