Author Archives: ha7mac

Multi band pocket size QRP

Posted on June 18, 2021 by ha7mac

Dear radio friends! This project started as usual: just because I want to have a “new” pocket size QRP when climbing the mountains. So design rules was: KISS (keep it simple stupid), lightweight, do not need extra cables, batteries only … Continue reading →

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SOTA CW keyer + decoder (mini portable)

Posted on June 18, 2021 by ha7mac

Dear radio fiends! My goal was to have a portable CW keyer with memories beacon and cw decoder function, because I’m not a good CW operator. Of course it must be lightweight and small ass possible. The requirement can not … Continue reading →

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Trap antenna again

Posted on September 25, 2020 by ha7mac

Trap antenna again. I start to create a new trap antenna for HA7AJ Attila. The requirement is to work on CW segment 3.5MHz, 7MHz, 10MHz, 14MHz, 18MHz. Maximum power is 400W. I decided to work with coax traps with RG58 … Continue reading →

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microBITX / uBITX full extra desktop radio

Posted on April 22, 2020 by ha7mac

Hello radio friends, I’m decided to create a desktop version microBITX radio. Why it will be a full extra version? Because there will be an orange pi PC for remote control & digital mode operations in the box. It can … Continue reading →

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Újabb QRP végfok

Posted on January 5, 2020 by ha7mac

A kitsandparts 5w vegfoka újraépíteve Kimenő szűrők után már szép képet ad. 7 és 14 MHz-en

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Nem sátor, de jó

Posted on September 21, 2019 by ha7mac

Harmatfedél, kitelepülős, csavargós napokra. Majd később kiderül mire kell és kinek. És még nem is nehéz..

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Lakoauto problema

Posted on July 29, 2019 by ha7mac

http://maps.google.com/maps?f=d&daddr=lakoauto@46.246925,15.169734 http://www.openstreetmap.org/#name=lakoauto&map=15/46.246925/15.169734

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Antenna HA7AJ barátomnál

Posted on May 20, 2019 by ha7mac

A 2m-es antenna is fent volt és megnéztem, az analizátorral is. 50MHz-es antenna megint. Antenna analízis: Festés és összeállitás első lépés C sapágyház…Lassan, de halad.Antenna forgató belűlről:Árbóc alapozás után, cső válogatás:Innen indúltunk.

Posted in Antenna, Rádiós, Uncategorized | 3 Comments

uBITX my buid module-by-module

Posted on May 27, 2018 by ha7mac

Hello, First of all I start to document it while the build is ongoing so there will be lot of update (fine tuning) and modification. This is the first version aka prototype. It is only for developmnet I plan to … Continue reading →

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uBITX my build

Posted on May 25, 2018 by ha7mac

So let’s go build a uBITX from scratch. Now I have limited free time, only just share with you the happyness of first receive, but I promiss to you I will back with details and steps and full story. Update … Continue reading →

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