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Query: RF
Links: 559 | Categories: 35
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Categories
- Manufacturers > Interfaces
- Technical Reference > Radio Frequency Interference
- Technical Reference > Amplifiers > RF Amplifiers Theory
- Software > RF Coverage Mapping
- Software > RF Design
- Technical Reference > Test Equipment > RF Probe
- Technical Reference > RF Signal Generators
- Technical Reference > Test Equipment > RF Sweep Generator
- Technical Reference > Sound Card Radio Interfacing
- Technical Reference > RF Design
- Technical Reference > RF Safety
- Shopping and Services > RF Tubes
- Radio Equipment > HF Amplifiers > Ameritron AL-811
- Manufacturers > Amplifiers
- Technical Reference > Amplifiers
- Technical Reference > Attenuators
- Antennas > Baluns
- Antennas > Feed Lines > Choke
- Technical Reference > Filters
- Radio Equipment > HF Transceivers > Icom IC-705
- Radio Equipment > HF Amplifiers > Kenwood TL-922
- DX Resources > Log Analysis
- Technical Reference > Radio Frequency Interference > Noise Reduction
- Antennas > OCF
- Technical Reference > Preamplifiers
- Technical Reference > QRM Eliminator
- Operating Aids > Radio Spectrum
- Technical Reference > Receiver Front-End Protector
- Antennas > Resonant Feedline Dipole
- Radio Equipment > VHF-UHF Amplifiers > RM VLA-200
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HamScope is a freeware windows multi-mode communications package for amateur radio that supports: PSK31 BPSK and QPSK RTTY ASCII MFSK16 PACKET CW. Support radio control interface for several ICOM, TenTec, Kenwood, and Yaesu transceivers. Compatible with DXbase LOGic 7 RYLogit TRX-Manager YPLOG. By KD5HIO Glen -
This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching. -
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Excellent guide to build your own G5RV antenna by Lombry -
8 elements quad antenna for 2 meters band, centered on 145 Mhz -
Article on a small magnetic loop antenna for forty meters band by Ben Smith -
RF Concepts manufacturer of Alpha Linear Amplifiers, amateur radio RF power amplifiers, commercial power amplifiers, power meters and dummy loads. -
PC sound card interfacing for RTTY SSTV PSK31, collection of interface connections to choose from when having a desire to use the Soundboard -
GAP Titan DX Evaluation, antenna for 10m 15m 20m 40m 80m -
Here you can find a a selections of CAT interfaces for ICOM Yaesu Kenwood. -
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Connect your FT-100 or FT-817 to your pc with this CAT interface cable -
This sketch will read RF power and SWR from any SWR bridge, designed to work on VHF UHF bands -
A solid state amplifier for HF and 6 meters band by N4IP -
This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane. -
Build a PSK-31 PC interface for the yaesu FT-817 -
"How to remove the so called ""ground loop"" and the reentry in the RTTY broadcast and make radio and PC happily coexist" -
Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL -
Online radio planning system, allow you to generate accurate radio frequency predictions for anywhere on earth -
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Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands -
Product review & short takes columns from QST magazine -
FT857 and FT897 Interface PCB and schematic -
Multi-band centre-fed antenna capable of very efficient operation on all HF bands, specifically designed with dimensions which allow it to be installed in gardens and other open spaces which accommodate a reasonably-straight run of 31.1m (102 ft) for the flat-top standard model. -
The R.F. Connection Specialist in RF Connectors, Coax, Cables, Grounding -
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Drawings of shortened antenna for indoor usage, using short pvc tubes for 2 , 20 and 40 MHz by f1rfm -
This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands -
YAESU FT-1000/MP/MARK V (filed) interface, this one of numerous RTX sound blaster interfaces you can find on the internet, but this one include: FSK KEYING to use with the RTTY port, DVS-2 to use the interface in AFSK mode, this include all digital modes + voice keyer, CW KEYING -
Perfect ground vs. poor ground. What is the difference? How does the ground influence the DX-gain? -
Cat interface for Kenwood transceivers, tested with TS-850 and kenwood TS-50 but should work with all Kenwood rtx -
Solid State and TWT Amplifiers From 1 MHz to 40 GHz with Power Levels from .1 mil Watt to 2.5 Kw -
Excellent guide to using ferrite cores for interference suppression. Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File -
University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations -
Antennas, books, rf parts, tubes,connectors and cables and many accessories at RF parts. -
Schematics and plans to build a custom CAT and audio pc interface -
Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures. -
HamRadioHomebrew Cat Interface for Yaesu FT-897 by PE1OPM -
AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz) -
An horizontal full wave wire loop antenna for the 80 meters band by W4HM -
Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF -
Why a vertical antenna or longwire antenna might require a balun -
Based on VK5BR's Z-Match and designed for High RF Power covers 160 to 10 meters by VK6YSF -
Radio Incident Command Kit project is described in this article loaded with many pictures and go-kit composition. -
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RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page -
Yaesu FT-1000MP, FT-990 and FT-920 packet data port to pc sound card for psk 31 interface. -
A sensitive RF probe is very useful in a situation where an oscilloscope is not available