Last 10 guestbook entries:

Name&call:Nick Date:2018-02-21 18:07:55
Message:Hi I just visit your site and i thing you have a very interested projects. I am interested in your project about swr rf power meter and i am ready to build it. Since i am not very familiar with this i would like to ask you something. First of all i would like to know how much power i can measure and if it can measure pep rf power. Second question is that if you can make a modification to source code so it can be shown at 2x16 lcd. thanks in advance Nick

Name&call:Antonello IK2DUW Date:2017-09-03 08:46:18
Message:Ciao Pavel , I hope you can help me, I use your Label and Qsl -DxQsl printing program, use a Brother QL-570 printer in spamming setup, after configuring it with my 62 x 100 format, not keeping it in memory and returning to default 17 x 54 ... can you make a memory? Thank you 73' AntoNello ik2duw

Name&call:PU2POP Joao Paulo Date:2017-06-18 14:00:12
Message:Hello Mr. Pavel Thank you very much for the contact in 80 meters. It's a new one for me! Is it possible to confirm by LOTW? I wish good contacts Regards PU2POP - Joao Paulo QRZ.COM PU2POP and ZY2QG If you are not user lotw let me know that I send the qsl paper to you.

Name&call:Zijo E77ZX Date:2017-03-23 18:25:46
Message:73 dr OM I build your SWRMega , and that is very good project. Congrat! I have one problem, I cant comumicate thru rs232, did you have some port settings or? I use XP sp3, did I must use some other system? Thanks for very good project for all of us radioamateurs. GL 73, Zix

Name&call:Willi, OK1FWG Date:2016-12-06 22:08:03
Message:Ahoj Pavliku, mas to moc hezke, hlavne ty anteny zavidim. Ja jsem tady v pytli, ale snad neco taky vymyslim, aby se dalo malinko vysilat na KV. Mej se moc prima a doufam, ze se nejak dame zase do kontaktu! Potesilo me umisteni v OL party 2016 :-D To mam co delat do priste! 73, Vilda

Name&call:Mat, DL5XU Date:2016-08-24 11:02:03
Message:Hallo Pavel, thanks for our tropo qso on 6m yesterday. use here only a big wheel antenna (omni). i know your qth in Kasperske Hory. i seee the Antenna in front of your House near the ski area at my vitit in sumava. 73 de Mat, DL5XU

Name&call:On4lg Date:2016-04-07 20:08:52
Message:Thanks for tonight qso on fox1. 73. Fred on4lg

Name&call:Pedro Converso - LU7ABF Date:2015-12-27 19:31:48
Message:Hello Pavel, Did satellite tracking page on It calculates/shows in real time both AZ/EL and dopplers. I will like to add WISPDDE control to handle rotors & rigs. If possible please advice/help to accomplish this ? Will much appreciate Best 73, lu7abf, Pedro Converso Buenos Aires, Argentina

Name&call:Hamilton P. da Silva - Py5CD Date:2015-11-09 15:49:32
Message:Hello Pavel! if its possible, i want to get the schematics of the si57o dds, i've made your board from your home page and need the information for the assembly. thanks in advance, Hamilton, PY5CD (

Name&call:Hamid Ep4hr Date:2015-02-21 18:03:15
Message:Hello dir Sir I very interested to your project DXVFO and want to make it . I have some question. 1- I have LCD Hitachi (HD44780) compatible that has 16 pin it can be in your project? 2- I can not find 12 MHz crystal .could be use 6 or 4 or 16 MHZ for Micro ? 3-Already I made a synthesizer with AD0950 from on that project pin 5 (reset) of AD9850 connect to micro but in your project you connect it to GND. It is correct? Thank you very much in advance .Best regards from EP4HR ,Hamid