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Query: 7 MHz band
Links: 402 | Categories: 7
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Class C tuned VHF power amplifier for the 6-meter band by ON6MU -
A PDF presentation of a home made moxon antenna for 50 MHz 70 MHz and 144 Mhz. The project is mainly out of surplus plastic Plumbing pipes and clips etc, and also details of how the dimensions were calculated. -
A well documented article about construction and analysis of a horizontally polarized halo antenna for 6 meters band by Dr. Carol F. Milazzo, KP4MD -
A homemade VHF/UHF vertical antenna made essentially with RG58 coax cable, with a 9 turns choke balun to prevent the shield acting as a RF Radiator. -
A QRP transceiver for 80 meters band by W1FB -
7N3WVM homebrew project of a 3 W output CW transceiver on 7 MHz band -
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The Quadlong antenna for the six meter band. This antenna feature a total gain of 6,4 dBd, F/B 21 dB and is also available in 70MHz version. Includes detailed pictures and plot diagrams. -
A 21 MHz Four Square Beam Antenna This popular antenna for the lower bands, can also work well on 15 meters, QST Article -
A SSB CW transceiver for six meters band with schematic and block diagram -
Antenna experiment a Delta loop antenna for 7 Mhz band -
A moxon rectangle for 50 Mhz band -
An inverted triangle Delta Loop Antenna for the 40 meter band made with aluminium pipes, each element is 14,2 meters including a home made aluminium mount. -
A vertical antenna for 40 meters band by PA5MW -
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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 -
A Loop Fed Array Yagi antenna for 50 MHz featuring 11 dBi gain and 23 f/b ratio. In this excellent page the author even includes a detailed drawing in DWG format, with element lenght and spacing measures, in a separa file a full list of material list needed to build this yagi antenna including source and price, the EZnec file for this antenna plan, and a lot of pictures of this LFA Yagi for 50 Mhz. A ten page PDF file containing all infos, is also available to download. -
The page provides a project for an helical dipole for the 40 meters band, resonating on 7 MHz, created by PY1ZFK based on a design by DL8VO. It includes detailed instructions on building the antenna. -
An optimized QRP transceiver for 40 meters band -
The antenna is a VHF side is a 2m moxon, tuned on 145.825 MHz. The driven element of the moxon couples to a driven element for a 5 element 70cms Yagi, tuned on 436.5 MHz. -
The original project of a dual band yagi antenna for 50 and 70 mhz, published on dubus 2/2007 by YU7EF -
Frequency coverage: 3.75 MHz to 4.00 MH transceiver for 75 MHz band -
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The webpage provides guidance on working 6 Meter DX, focusing on effective operating habits, preparation, and knowledge of the band. It emphasizes the importance of monitoring, clear frequencies, and using CW for weak signals. It also mentions the significance of knowing countries and individual stations on the air to increase chances of working DX. The page recommends utilizing resources like newsletters and websites to stay updated on 6-meter activity and offers suggestions for improving operating skills. -
Summary of discussion on stacking antennas on six meter band -
This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT rotary switch. -
This modification will expand the tx frequency range of the Yaesu FT-991 from allowing just ham radio bands, to all bands 1.8 - 30MHz and 50-54 MHz.This information is solely for use by licensed members of MARS (Military Affiliate Radio System) or CAP (Civil Air Patrol) -
A project of a small antenna, just 50 cm for the 7 MHz band. An EH Antenna plan for the 40 meters band -
One of just a few webpages for the magic band, see it from the german point of view. -
This document details the design and construction of the PA70H, a 50-watt RF amplifier for the 70MHz (4-meter) amateur radio band. Built around the Mitsubishi RD70HVF1 MOSFET transistor, the amplifier delivers 45-55W output with 3-5W input power while operating on 13.8V DC at approximately 7-8A. The PCB design incorporates multiple protection circuits including overcurrent, SWR, and temperature control. The amplifier features various control modes including GND PTT, +13.8V PTT, and RF VOX. Two versions are available: PA70HLI (requiring 100mW input with additional driver) and PA70H (for 3-5W input). The comprehensive documentation includes circuit diagrams, assembly instructions, and performance data showing successful operation from both 100mW and 3.5W input sources. -
Fill out the form to design a bandpass filter as described in the January 1985 issue of Ham Radio Magazine. These filters are generally limited to frequencies above 200 MHZ because their size is slightly longer than 1/4 wavelength -
5-element antenna, with which G0JJL has worked lots of EU crossband, and won the RSGB Christmas Cumulatives 70MHz section twice in a row. -
A 5 elements homemade DK7ZB yagi antenna for 4 meters band based on a 50MHz TONNA -
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This is a prototype of the WA4DSY 56KB RF modem. It is intended for use on amateur packet radio networks. The modem generates RF in the 28 to 30 mhz range and requires and linear transverter to convert the signal to a UHF or microwave ham band -
A simple fixed frequency SSB voice transceiver for the 7 MHz amateur band -
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EF0603S is a 3 element portable yagi antenna for six meters band by YU7EF -
A home made project, scan and monitor the 2.4 GHz band using a common MMDS downconverter. -
In this PDF article Zack Lau describe how to homebrew a four element yagi beam antenna for 50 MHz band, including how to build mounting blocks and tubing clamps to hold elements. -
An homebrew project for a 4 elements yagi monoband antenna for the 10 meters by 9M2MSO -
A 5 element yagi beam antenna for ten meters band with full dimentsions, eznec file and coax match informations for 50 ohms feed line -
An high gain long yagi antenna, seven elements, for six meters band -
This QST article describes the electrical and mechanical design process for two LPs that cover the HF bands from 10-30 MHz -
Radio Communication Base Station, Marine, Cellular and Mobile antennas covering all bands between 2-6000MHz, Communication Accessories, Coaxial Cable, Coaxial Connectors and Accessories