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Antennas
- Multiband wire antennas and ATUs
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- DC1YB experience on multiband wire antennas. In particular examine FD4 windom and G5RV antenna, considering noise levels and matching aspects.
Author reviews also the usage of Automatic antenna tuners in TS-50 TS-480 and GC-3000
[Hits: 19357 | Votes: 19 | Rate: 4.91] Antennas : 10M
- Multiband Cubical Quads
- EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
[Hits: 5691 | Votes: 3 | Rate: 9.00] Antennas : 160M
- Double Extended Zepp Antenna
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- This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
[Hits: 21748 | Votes: 24 | Rate: 6.13] Antennas : 17M
- W3FF Portable Dipole
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- This is the antenna w3ff designed for his walking portable station. It is a dipole constructed out of the plastic plumbing pipe CPVC. There are telescoping whips at the ends of each side of the dipole, and these whips are adjusted to bring the antenna into resonance on each of five HF Bands 10, 12, 15, 17, and 20 Meters
[Hits: 16731 | Votes: 12 | Rate: 7.82] Antennas : Array
- Bruce arrays for 80 and 160m
- Antennas with gain and bandwidth for 80 and 160 meters band. Simple wire antenna capable of considerable gain
[Hits: 6387 | Votes: 2 | Rate: 9.00] Antennas : Dipole
- Inverted Vee monoband antenna
- This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain
[Hits: 1782 | Votes: 1 | Rate: 10.00] Antennas : Feed Lines
- Transmission Lines
- Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
[Hits: 1043 | Votes: 0 | Rate: 0.00] Antennas : Multiband
- Some plain facts about multiband vertical antennas
- There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.
[Hits: 1579 | Votes: 1 | Rate: 7.00] Antennas : Stealth
- The Notebook Antenna
- the multiband Notebook Antenna, so called because the entire antenna will fit easily inside a 1" thick 3-ring binder
[Hits: 4075 | Votes: 4 | Rate: 7.50] Antennas : Theory
- All HF Band Antennas
- F6ITV consideration on HF Antennas, from trap wired anternnas, to center feed antennas.
[Hits: 1163 | Votes: 0 | Rate: 0.00] - Easy way antenna systems
- Written by John M. Haerle, WB5IIR (SK). A must read for anyone considering building a good low cost HF multi-band antenna system.
[Hits: 640 | Votes: 3 | Rate: 10.00] Antennas : VHF UHF
- Sidemount VHF/UHF Antenna
- This antenna is designed to be mounted off the side of a tower. Works on 136-153 Mhz range but also on 70 cm band
[Hits: 803 | Votes: 2 | Rate: 8.50] CB Radio : Clubs
- Yankee Oscar Club
- Yankee Oscar Club of Northeastern Ohio using the sideband freq.
[Hits: 608 | Votes: 4 | Rate: 5.25] DX Resources : DX Peditions
- 1SL1A Sealand DXpedition
- 9-10 December 2000, Bands to be concentrated on will be 10m,15m,20m,40m,80m. WARC bands and 160 are being considered
[Hits: 860 | Votes: 1 | Rate: 1.00] DX Resources : Nets
- Omiss
- OM International sideband society incorporated nets 75M, 40M, and 20M Nets begin one hour earlier during Daylight Savings Time
[Hits: 1439 | Votes: 8 | Rate: 9.76] Ham Radio : Band Plans Internet and Radio : Forums
- DeltaKilo Yahoo Group
- This is a group for CBers, Sidebanders, Amateurs and Freebanders. Items to be discussed are CB, Skip, Skeds, DX communications, SSB, export radios, Radio equipment, mods, ham radio, repairs, electronics, CW, PSK31, RTTY, digital, and different radio shops.
[Hits: 468 | Votes: 1 | Rate: 8.00] Manufacturers : Cable and Connectors
- Max-Gain Systems, Inc.
- Fiberglass for the antenna builder, Antenna Mart quads, Bandmaster quads, transmitting components, vacuum capacitors and relays, tower accessories, gin poles, remote RF coax switches, rotating side mounts, quad spreaders, quad parts, bristol wrenches, doorknob capacitors, transmitting electron tubes, and much more!
[Hits: 6001 | Votes: 8 | Rate: 7.43] Manufacturers : Transceivers : CB Radio
- President Electronics
- Presindet Electronics produces all mode CB bands transceivers, antennas, and accessories.
[Hits: 9911 | Votes: 37 | Rate: 5.86] Operating Aids : Awards
- Radiomaritimeday.org
- To remember our past at sea and to support the future of W/T inside New Generations the second week-end of April Merchant Navy Radio Officers and Radio Operators of Maritime Radio Coasts Stations will be active on HF bands to meet Amateurs Radio for a special event
[Hits: 178 | Votes: 1 | Rate: 10.00] Operating Modes : Stealth Amateur Radio
- HF Antennas for restricted space
- Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
[Hits: 6253 | Votes: 6 | Rate: 4.83] Radio Scanning : Military
- Monitoring The Iraq War
- Monitoring The Iraq War As the world waits and watches Iraq, if you've got a``shortwave receiver with sideband mode (USB and LSB) you can hear certain``military communications
[Hits: 4414 | Votes: 3 | Rate: 1.33] 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: 21051 | Votes: 21 | Rate: 6.05] Technical Reference : QRP Projects
- QRP equipment
- Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP
[Hits: 11213 | Votes: 10 | Rate: 8.79]
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