filter297 links - and 4 categories
Antennas : 40M : 40 meter Loop Antennas
- Receiving antenna for low bands
- K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter
[ Hits: 18604 | Votes: 9 | Rating: 8.33 ]
- Band Filters
- Experience of band filters, for a contest multi operator enviroenment
[ Hits: 3761 | Votes: 5 | Rating: 7.6 ]
- DXFun Web Cluster
- DX Cluster mainly in spanish, with chat, filtering available upon user registration, propagation reports and solar status, includes also latest dx news.
[ Hits: 4408 | Votes: 34 | Rating: 6.14 ]
- We produce duplex filters for 6 m, 2 m, 70 cm, and 23 cm band but also for HF bands.
Sella and produce products for Ham Radio Repeaters.
[ Hits: 1765 | Votes: 1 | Rating: 1 ]
- Micro908 Kit
- A re-usable control & computing platform for
antenna measurement, PSK31 digital modems, audio filtering, signal source & VFO, memory keyer by AMQRP
[ Hits: 1423 | Votes: 1 | Rating: 10 ]
- Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers
[ Hits: 448 | Votes: 0 | Rating: 0 ]
- Garth RF Filters
- ATV Filters, RF filters dealer
[ Hits: 665 | Votes: 2 | Rating: 6.5 ]
- Audio processor for SSB transceiver
- This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
[ Hits: 1317 | Votes: 1 | Rating: 1 ]
- Diplexer design notes
- Standard diplexer design is based on singly-terminated Butterworth filters.
[ Hits: 5309 | Votes: 8 | Rating: 5.87 ]
- A low cost UHF/VHF duplexer
- Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
[ Hits: 7994 | Votes: 14 | Rating: 5.5 ]
- Interferences and filtering
- General information on Filter passbands, interferences, TVI and RFI problems
[ Hits: 1087 | Votes: 1 | Rating: 10 ]
- YCCC 6 Band Receive Bandpass filter
- This is a 6 band receive only filter designed to protect your receiver front end and provide 45dB reject at the stop bands.
[ Hits: 1567 | Votes: 2 | Rating: 9.5 ]
- The NVARC Ugly Filter Project
- Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity
[ Hits: 895 | Votes: 4 | Rating: 9.5 ]
- Narrow Band-Pass filter for HF
- Band-pass filters can be critical components in
competitive stations. This setup may help
put your station on the map.
[ Hits: 2089 | Votes: 1 | Rating: 1 ]
- Clean Up Your Signals with Band-Pass Filters
- These inexpensive, easily built filters can be the buffer you need between the signals you want to hear and send and those you don't!
[ Hits: 2968 | Votes: 0 | Rating: 0 ]
- Clean Up Your Signals with Band-Pass Filters part 2
- Part 2 You're now much closer to saying
goodbye to your unwanted signal problems!
[ Hits: 1156 | Votes: 0 | Rating: 0 ]
- Band-Pass Filters for HF Transceivers
- Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
[ Hits: 3524 | Votes: 2 | Rating: 9 ]
- K2TR Coax Stub Filters
- Multi transmitter filters
[ Hits: 2913 | Votes: 7 | Rating: 6.43 ]
- Second-Harmonic-Optimized Low-Pass Filters
- Sometimes we need a little more output filtering than traditional designs offer. Look at a new filter that can give you that extra boost. QST article by W3NQN
[ Hits: 716 | Votes: 0 | Rating: 0 ]
- CW Filter
- I0QM Gaussian CW Filter page
This Filter for the weak signals is the evolution of the simple Universal State filter, already published on "Radio Rivista", the 8/1993
[ Hits: 1674 | Votes: 2 | Rating: 8 ]
You can try similar termsbcb filter dsp cw filter fir filter pi filter rf filter tvi filter vhf filter vhf tv filter ac line filter filter design filter software low pass filter passive cw filter band pass filter
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