Category Archives: qiu


By | 04.10.2020

One of the greatest thrills you can have in amateur radio is to make your first contact with a radio that you built from pieces.


It has never been easier, cheaper, or faster to make something with your own skills. On this page we help you find resources that you can use to design, create printed circuit boards, assemble, specify, and build a number of creations. Look on the Elmer page for details, or come to one of the meeting locations. Take a look at the Pixie CW page. Nightfire, of Ocala, FL has a ton of kits available on their web site.

Here are a number of small kits for the first time builder. Lighting kits, amplifiers, and Arduino kits for many different projects. And a European site that has a number of additional projects for you to review at the QSL. Ashhar Farhan has a BITX bidirectional transceiver on his website for you to review, along with a number of other projects. The Tonne Software page has a ton of great software that can be used to design and simulate electrical circuits that you want to test, or build.

Try it out virtually before you break out the soldering iron. Kicad Software is an open source printed board circuit layout tool that will let you lay out a circuit board, like a pro. This software will let you draw, layout, simulate, and render in 3-D, like software that costs tens of thousands of dollars. Available, for free, for a bunch of different platforms. Claude Paillard F2FO has a wonderful video that you can watch that shows him making his own vacuum tubes. Enjoy the video!

Search for:. Sources For Parts Part, parts, parts, we all need more parts. Here are some sources for parts you may need: Ebay! Digikey is a parts warehouser that has just about everything. Mouser Electronics is another great way to get the pieces and parts you need. Tayda Electronics is another great source of pieces and parts for you to use in your build project.

Meridian Tool has all of the tools you need to get started. Soldering irons, screwdrivers, pliers, nippers, sockets, and a whole lot more. Harbor Freight has power tools, hand tools, and a whole lot more.

Parts Express has all kinds of audio parts and components. Hamfests are a great way to obtain pieces and parts that can be used in future projects. These are also great places to learn from others that have been building their own equipment. Useful Homebrew Software The Tonne Software page has a ton of great software that can be used to design and simulate electrical circuits that you want to test, or build. Kicad PC Board Layout Software Free Kicad Software is an open source printed board circuit layout tool that will let you lay out a circuit board, like a pro.Crystal Pixie Pixie a Cristal.

Pixie a cristal como montar only in portuguese kb. Ceramic Resonator Pixie. Pixie working with a ceramic resonator VXO, adding more flexibility. Transceptor Pixie com Ressonador Ceramico. Pixie a ressonador ceramico como montar only in portuguese kb.

Regenerative receiver for SWL use, made with bjt transistors. Receptor regenerativo de HF com transistores comuns. Pixie DSB. Receptor superheterodino para 40m CW pronto para linha separada. Full break in. Ceramic resonator VXO. How to assembly a ceramic resonator VXO.

Montando um VXO com ressonador ceramico. TX digital. Minhas experiencias com CIs da linha digital 74HC. RX 15m CW. Superhet Receiver for 15m band CW. A simple 40m receiver - Um receptor para 40m simples. Xtal CW Tx - sonds like a "canarinho" bird. Tx a Xtal QRPp poucos componentes.

The smallest Tx 7 components - QRPp. O menor Tx QRpp do mundo com 7 componentes.Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email.

Notify me of new posts by email. Sign in. Log into your account. Forgot your password? Password recovery. Recover your password. The DXZone. How to build an excellent key for very little cost with homebreweing description and detailed pictures by G3YUH. Five Cent CW key. The 5 cent home made morse key by OH7SV. Mini CW key. Single Lever CW Paddle.


Single-Lever CW Paddle. Strange CW keys. Home Made Paddle Key and Keyer. PC-board iambic CW paddle. NB6M paddles. Paddles made from readily available materials, like double sided PC board material and cost almost nothing to build. Poor man's paddle. An homemade cw paddle made with a double-sided copper clad PCB.

Home Made CW Paddle. Home Made CW paddles made from a printed circuit board and a teflon mounting block while contacts are made with simple brass threaded rods. Ultra-lightweight Morse code keyer paddle. J Paddles.


How to Learn Morse Code for Beginners. Please enter your comment! Please enter your name here. You have entered an incorrect email address! Mar 17, The Grid Square Locator, also known as the Maidenhead Locator System, is a geographical co-ordinate method based on a 6-digit code, widely used by amateur radio operators to determine a rough position on the Earth.QRP homebrew equipment by py2ohh py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components mw CW Transmitter A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for80, 40 or 30 meters.

It can't get simpler than this. It has very few parts, costs almost nothing, and it works! It is a true "Work in Progress" in that wd8rif is constantly changing the contents of the bag as learn what works and what doesn't. Vintage 's and newer versions of the Tuna Tin Two are featured. Why do some hams choose to operate QRP? How can I operate QRP?

These are good questions, and all are worth asking. This article will attempt to answer these questions. Ham Radio operators review new sites every day sincefor potential inclusion in the Directory, and to evaluate the best place to list them.

Operating Modes Operating Aids. CB Radio Antique Radio.

Receptor regenerativo de alta performance para 40m e 80m [Parte 1]

Wire antennas. Hidden antennas. HF Radios. Commercial QRP Kits. Morse Keyers. Buy QRP kits. Morse Code. Yaesu FT Clubs Search only in "QRP". Add a new link. The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists Add our Daily Top 10 links gadgets to your site.It is a keeper.

I'm going to experiment this weekend. I thought you could do it. Set the phase offset register to the same number. And leave them, don't alter again, unless you make a huge frequency change e. In any case, the SiLabs documentation recommends even integer divider for the MultiSynth stage for lowest output jitter phase noise.

Therefore it's a good idea to do it this way, anyway - even if you aren't looking for a quadrature LO. Only do a Reset when you change the MultiSynth Divider. Here, the reset is absolutely required in order to set up the initial phase relationship correctly between the two outputs. But you do NOT need a PLL Reset subsequently when you change the frequency, even when you change the frequency by a substantial amount.

It also generates clicks albeit lesser ones. It is a bad solution to the problem of clicks, because it does not tackle the real problem unnecessary PLL Reset commandsit only masks the problem slightly. As long as you heed my advice in 2 above you will never need to temporarily switch off SiA outputs. Unfortunately there was no easy way, due to the poor SiLabs documentation.

And we appreciate the care you have taken to document this and your other products. I'm curious, have you measured the increase in jitter when going to a fractional output msynth on the si? Not clear to me whether or not this is a significant consideration for the uBitx. Another issue, the uBitx uses all three clocks out of the si, and with only two PLL's available in the si it's at least bothersome if not impractical to keep all three output msynth's in integer mode.

I agree that you must be in integer mode to use the phase shift feature to get quadrature clocks, but that is not a requirement on the uBitx. Very nice to know that the vco can work well beyond the mhz spec, thanks! We could, however, use PLLA on clk2 as you suggest, with an integer output msynth. Choose the PLLB frequency based on the required mostly fixed frequency of clk1 into the second mixer, so this could also have an integer output msynth.

But this would complicate the sibx routines considerably, also increase the amount of flash used. Unless jitter is known to be an issue on the uBitx, I am inclined not to bother.

Open Source PCB for Ararinha QRP

A better fix might be to build a Raduino that uses the lower jitter and lower crosstalk si, especially for those wishing to extend the uBitx for use as a VHF rig. But with that single pll, the output msynths are done accurately enough that jitter is better than can be done on the si using integer output msynths. Also, you do realize that the uBitx uses only one of the two PLL's inside the si? The si has two pll's but the second pll is not used.Not a member?

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Learn More. Yes, delete it Cancel. Felipe Navarro. Following Follow project. Liked Like project. Become a Hackaday. Remember me. Sign up. Forgot your password?GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. All these projects share this common script. By using a common script, a bug fixed or parameter changed is done once, in one place only, and gets deployed the next time a particuar transceiver's Arduino is flashed.

Code blocks and unique code paths are selected for each project using the C preprocessor directives define's. At the top of the script, each project is given a define'd label, which is used to control other label and variable declarations, code paths and optional code blocks. Only one project label should be define'd at any time, all others should be commented. For discussion of this project and some information to help you decide if this is the script for you, see this repository's Wiki in this repository.

Please feel free to raise an issue, defect or feature request on Github. Please let me know if you use this code, with or without change. Libraries: The script uses commonly available libraries; here are the ones I used. Substitutes should work, but code changes may be necessary:. Skip to content.

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Category: qiu

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