s meter add
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Antennas : 6M : 6 meter J-Pole Antenna- 6 Meter Ladder Line J-Pole Antenna
- 6 Meter J-Pole from 450 Ohm Ladder Line a quickie project
[ Hits: 370 | Votes: 1 | Rating: 10 ]
- Buddipole vertical dipole for 40M
- A vertical dipole for the 40 meters band made by using some buddipole parts and adding capacities on both ends by HB9MTN
[ Hits: 1925 | Votes: 3 | Rating: 5.67 ]
- 6 Bands Fan Dipole Antenna
- Extension to an existing fan dipole originally modeled for 40 20 and 6 meters. This modification will add 80 15 and 10 meter bands.
[ Hits: 1300 | Votes: 2 | Rating: 5 ]
- The Ramsay Dipole for 40 20 15 meters
- A multiband Fan Dipole that works on 40 20 15 meters band, making a folded dipole for 7 MHz band and additional element for the 21 MHz and 14 MHz
[ Hits: 402 | Votes: 4 | Rating: 8.75 ]
- Quad Loop Antenna for 50 MHz
- Building A Full-Wave Quad Loop Antenna for 6 Meters. This is an easy antenna to build and the materials cost about $15-20. It exhibits 1.8dB gain over a 1/2-wave dipole. Using an open-wire parallel feedline (commonly called ladder line) with an antenna tuner, it tunes up on the 10m band as a 5/8-wave loop as well
[ Hits: 200 | Votes: 1 | Rating: 1 ]
- Moxon Mania - Building the Ultimate 4-Band Moxon Antenna
- The article details the design and construction of a four-band Moxon beam by a radio amateur. The beam, mounted atop a rooftop tower, aimed for gain over a dipole on 20 meters, cost under $500, and included additional bands. The design features fiberglass spreaders, four bands (20/15/10/6 meters), and a single feedpoint. The construction involved computer modeling, NEC source code, and specific dimensions. The article outlines the assembly, materials, and tuning process, including in-situ adjustments for optimal performance. Despite initial challenges, the beam improved signal strength and facilitated contacts on multiple bands, marking it as the best HF antenna the author has owned.
[ Hits: 96 | Votes: 0 | Rating: 0 ]
- Balcony Mounted Buddistick Antenna by KP4MD
- The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
[ Hits: 281 | Votes: 3 | Rating: 10 ]
- Modified Ground Plane Antenna Adds Second Band
- This article explains the trick of how to shorten and lengthen pairs of radials to make a 2-band ground plane antenna.
Included is a "Table of Multi-Band Possibilities" covering the range of 6 to 40 meters.
[ Hits: 53 | Votes: 0 | Rating: 0 ]
- DJ9PK SWR Meters
- This device was designed as an SWR and power meter for Radio Amateurs. In addition to SWR, it measures forward and backwards power, therefore can also be used as a wattmeter. With a large measuring range from 1 to 1000 watts, it is suitable for use from QRP to QRO
[ Hits: 205 | Votes: 0 | Rating: 0 ]
- Icom 706MK2G Repair
- After years of reliable performance, a 26-year-old Icom 706MK2G exhibited an unusual deviation during FM transmission, with the actual frequency being 10kHz off from the displayed frequency. Additionally, the power meter showed a sharp dip during transmission. Upon investigation, it was discovered that the FM VCO voltage adjust variable had become dirty and sluggish over time. By adjusting the variable capacitor and cleaning it with switch cleaner, the issue was resolved, restoring stable power output and accurate frequency transmission.
[ Hits: 19 | Votes: 0 | Rating: 0 ]
- HF9V Antenna Setup and mods
- Installation and modification of the popular Butternut HF9V antenna with the optional 160 meter addon.
Article includes a modification to improve the performance on the top band
[ Hits: 196 | Votes: 2 | Rating: 10 ]
- HF2V 80 40m Vertical
- Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V
[ Hits: 3031 | Votes: 10 | Rating: 7.2 ]
- Spectrogram
- Spectrogram, a PC-based audio frequency spectrum analyzer available from Visualization Software, aids ham radio enthusiasts in aligning receivers like Elecraft K2. Versions are downloadable, with an intuitive interface and customizable parameters. Tutorials by experts like Tom Hammond and John Grebenkemper offer additional guidance.
[ Hits: 23 | Votes: 0 | Rating: 0 ]
- Field Strength Meter
- The field strength meter (FSM) is a very useful addition to any HAM toolbox.
If you are messing around with antennas, or building PA's, or trying to repair some TX gear, the FSM will come to your rescue when there is doubt about the output level.
[ Hits: 80 | Votes: 0 | Rating: 0 ]
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