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Antennas : 40M : 40 meter Dipole Antennas- Linear Loaded 40m Dipole
- Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
[ Hits: 159 | Votes: 0 | Rating: 0 ]
- Build your own HF balun
- A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cable. From the RF point of view, the shield can be modeled as two conductors, the internal shield (the real shield, this is, ground) and the external shield, who is really far to be ground. In this way, your dipole has 3 arms, the two from the dipole and the coaxial cable shield (external face)
[ Hits: 248 | Votes: 1 | Rating: 10 ]
- HF multi-band Delta loop antenna
- A delta loop antenna that can be tuned all over HF bands with the help of a Icom AH-4 external antenna tuner.
[ Hits: 2527 | Votes: 19 | Rating: 5.73 ]
- Vertical Full Wavelength Loop
- Consider installing a stealth vertical loop antenna if you live in a place with no antenna restrictions.
Full wave loop wire antennas allow you to be on the air without installing evidente external aerials.
[ Hits: 457 | Votes: 1 | Rating: 8 ]
- Reducing the Cable Mess
- Optimizing the cable connections for cat control and audio input output by implementing the digirig mobile. A small audio and rig control interface, with a single USB cable supports most QRP radios requiring external audio and CAT control facilities
[ Hits: 155 | Votes: 0 | Rating: 0 ]
- Fast Charge your MFJ-259B Internal Batteries
- Modify MFJ-259B to connect an external fast charger to the batteries directly
[ Hits: 581 | Votes: 2 | Rating: 10 ]
- Transforming the Elecraft K3 into a SDR with K3
- This article will explain a few of the ways author use an external SDR and Linrad to enhance his K3 experience. Linrad is one of many available SDR receiver programs. The same could be done with any radio that lets you access its IF frequency output. Article from NCJ Nov Dec 2019
[ Hits: 336 | Votes: 0 | Rating: 0 ]
- ICOM IC756 Fan Modification
updated
- ICOM IC756 PRO II III, PS125 Fan Modifications, install an external cooling fan on the ICOM IC756 PROIII to minimize the heat on the chassis, then will perform a fan modification on the ICOM PS125 power supply to minimize the fan noise.
[ Hits: 114 | Votes: 1 | Rating: 10 ]
- Icom 706MKIIG modification for frequency injection
- On this page, N6GN and K6PZB are documenting two different methods to modify the Icom IC 706MKIIG for use with an external frequency reference.
[ Hits: 461 | Votes: 1 | Rating: 10 ]
- Yaesu FT-817 Add VOX via Data Jack
- Adding VOX to the Data Jack on an FT-817. A method of modifying the FT-817 so that the data jack could be used with VOX on SSB etc thus eliminating the need for any external PTT switching.
[ Hits: 155 | Votes: 0 | Rating: 0 ]
- JMSK
- JMSK is a software modem that implements a good coherent MSK demodulator that has performance comparable to BPSK. Signals are demodulated from the soundcard. Modulated signals can be routed through the soundcard or to an external device such as a DDS module for direct RF modulation. The advantage of MSK compared to PSK is that non linear amplifiers can be used and has a faster roll off. It is an open source cross-platform program written in C++ Qt.
[ Hits: 369 | Votes: 2 | Rating: 5.5 ]
- LogView for WSJT-X
- Log viewer for WSJT-X is an external utility to parse the WSJT-X log and check for duplicate contacts or making additional analysis.
[ Hits: 561 | Votes: 0 | Rating: 0 ]
- SmartSDR for Mac
- SDR control for FlexRadio Signature Series Rig for Apple Mac. FT8 integration, External Software support,
Several additional Tools, display as many panadapters and slices your Radio is capable of.
[ Hits: 111 | Votes: 1 | Rating: 10 ]
- Building a SainSmart USB Antenna Switch
- Building an automatic 8ch USB Relay switch using an existing Ameritron RCS-8V Remote Control Coax Switch and an externally mounted 5-way switch.
[ Hits: 152 | Votes: 0 | Rating: 0 ]
- An Audio Selection Panel in the Shack
- On this page, you will find one of my designs; An Audio Selection Panel (ASP). The Audio Selection Panel allows you to control 4 Transceivers and hear the audio through the built-in loudspeaker and on an external boomset (combination Microphone/ headset). On or more transceivers can be selected at a time to transmit and/ or receiv
[ Hits: 138 | Votes: 2 | Rating: 7.5 ]
- Elecraft KX3 Paddle Adapter
- An external base for this nifty little paddle by Elecraft
[ Hits: 452 | Votes: 1 | Rating: 10 ]
- MiniTioune receiver project
- The MiniTioune receiver project, developed by Jean-Pierre F6DZP, consists of the home constructed MiniTiouner hardware which interfaces via a standard USB 2.0 port to a Windows PC running the MiniTioune software. It can be used to receive satellite broadcasts transmissions making it ideal for use on Q-oscar 100 Es hail-2 without any external frequency converters.
[ Hits: 197 | Votes: 0 | Rating: 0 ]
- USB Sound card review
- Using external usb sound card devices for amateur radio digital modes operations
[ Hits: 500 | Votes: 0 | Rating: 0 ]
- TYT MD-390 Rx Audio Issue
- Common issue on the TYT MD-390 when the speaker start sounding like it is broken, but it depends by the external mic cover.
[ Hits: 171 | Votes: 1 | Rating: 10 ]
- miniVNA Bluetooth interface
- Internal Bluetooth interface for miniVNA, Bluetooth connection to the PC allow Full cordless operation with ao external components
[ Hits: 271 | Votes: 0 | Rating: 0 ]
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