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26. March 2023
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Technique

Ability to create a device, which receives or transmits a radio signal is a specific field of amateur radio. But not only that, and many other designs such as amplifiers, filtered, power supplies or antennas are things, which the dexterous hands of a radio amateur can produce.

Diverzný príjem na RSPduo
Technique 

Diverse reception - interference suppression

20. March 202320. March 2023 om0aao 1 Comment antenna, receiver, SDR

Every electrical device is a receiver of interference and can also become a source of interference. Electronics can be like that for a radio amateur

Read on...
sBITX TCVR
Digital modes Reviews Technique 

sBITX – SDR TCVR for constructors

3. February 20233. February 2023 om0aao 0 Comments CW, FT8, RTTY, SDR, SSB, TCVR

Ashar Farhan won the first concession of the year 1982. On this more than 40-year journey through the radio amateur world, there are milestones like BITX, uBITX

Read on...
Nový stožiar OM0ET s hexbeam anténou
LF+HF Technique 

How to build an antenna mast with a hexbeam antenna – OM0ET

20. January 202320. January 2023 om0aao 0 Comments antenna, kv

Paľo OM0ET documented the construction of an antenna mast with a hexbeam antenna – two months of work in a 37-minute video:

Read on...
Yaesu FT-710 TCVR
LF+HF Technique 

Yaesu FT-710 firmware update

2. January 20232. January 2023 om0aao 0 Comments SDR, yaesu

The December firmware update of the Yaesu FT-710 makes improvements: 1. Bug fixed, which was causing delay or unnecessary code for CW broadcasts using the built-in

Read on...
Morserino-32
Software Technique 

Morserino-32

3. November 20222. November 2022 om0aao 0 Comments CW

What is Morserino-32? Morseino-32 is a multifunctional device for telegraphy (key holder, coach, decoder, even transmitter etc.). It is ideal for learning

Read on...
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LF+HF Reviews Technique 

Cheap SDR transceiver T41 na 5 band

23. October 202223. October 2022 om0aao 0 Comments SDR, TCVR

T41-EP (aka T41) is a robust 20W SSB and CW SDR transceiver, on which Jack Purdum W8TEE and Al Peter AC8GY

Read on...
Plošný spoj
Ham information Technique 

YouTube spoon OK1IF

19. September 202219. September 2022 om0aao 0 Comments antenna, CW, Elecraft, kv, receiver, SDR, SSB

Milan's OK1IF blog is certainly read by many radio amateurs. It is full of inspiring experiments. OK1IF blog http://ok1if.c-a-v.com However, few seem to have noticed, that

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Dátové konektory TRX-DUO SDR transceiver-a
LF+HF Reviews Technique 

TRX-DUO SDR ZYNQ7010

14. September 202211. October 2022 om0aao 0 Comments kv, receiver, remote station, SDR, TCVR

TRX-DUO is an SDR radio, which supports two-channel physical reception and transmission. Uses 2x 16-bit ADC LTC2208 to realize direct sampling

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Vypracované odpovede pre rádioamatérske skúšky
Ham information Technique 

Elaborated answers for radio amateur exams

4. July 202225. March 2023 om0aao 3 Comments antenna, antenna tuner, CB, CW, output stage, kv, preamplifier, receiver, SSB, TCVR, amplifier

When preparing for radio amateur exams, it is difficult for interested parties to obtain comprehensible documents, from which they would understand the issues of electrical engineering and radio engineering.

Read on...
Obrázok 6 Pripojenie k TCVR - Pohľad z predu
Digital modes Software Technique 

How I ran FT8 III

7. June 2022 om0aao 0 Comments FT8, TCVR, yaesu

In the first article of the series, I described the interface (interface) pre TCVR Kenwood TS-870S, which added another mode to our HAM family. To be continued

Read on...
Yaesu FT991
Technique 

New bias source for HF transistor power amplifiers with bipolar transistors

15. February 20228. July 2022 om0aao 1 Comment output stage, receiver, SDR, SSB, TCVR, WebSDR

Having a good signal is a business card of a radio amateur. Having a good signal is a business card of a radio amateur, which years ago

Read on...
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Hamradio discussion

Short KV waves
Include posts related to HF bands here (do 10m)

Very short VHF waves
Include contributions related to VHF bands here (from 6m upwards)

Technique
Questions, answers and ideas for constructions, involved, equipment modifications

other
This includes posts, which cannot be included elsewhere…

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Selection of articles

  • KVPA race results - July 2005KVPA race results – July 2005
    In categories: Contesting, LF+HF
    QRO -------------------------------------------------------------------- 1. OL1AB R79 79x55=4345! 21. OM8ON KEB 66x46 = 3036* 2. OK2BGA M67 78x54=4211! 22. OK1EV F54 70x43=3010 3. OK2PDT ...read more
  • A few pages about tubesA few pages about tubes
    In categories: Technique
    From Jindra OK1XR, we got tips on some interesting tube sites. I considered, whether to assemble from the materials on these ...read more
  • Kozákov 2010Kozákov 2010
    In categories: Ham information
    Turnov Radio Club organizes on Saturday 8. May 2010 spring meeting in Kozákov (JO70PO). Beginning around in 8 hours. 0 0 ...read more
  • List of HF / VHF races March 2004List of HF / VHF races March 2004
    In categories: Contesting  contest, CQ WPX Contest, CW, OM Activity Contest, RTTY, SSB, SSB liga
    Once again we bring you an overview of the most interesting races on KV / VKV – in March 2004. Attention! In some periodicals they still occur out of date ...read more
  • GAREC 2006GAREC 2006
    In categories: Ham information
    In days 19.-20. June 2006 an international conference on amateur radio emergency will be held again in Tampere, Finland. ...read more

ABOUT HIM ROKA

Year 2004
Dipl. Ing. Jaroslav Just
OM3TA, SK


Year 2005
Rudolf Karaba
OM3PC


Year 2006
MUDr.Harry Činčura
OM3EA


Year 2007
Dipl. Ing. Radoslav Gališ
OM6KW


Year 2008
Ing. Jaroslav Kubicek
OM1II


Year 2009
Jozef Ivan
OM3NA (in rememberence)
a
Peter Martiška
OM3PA


Year 2010
Anton Srnka
OM1AEG


Year 2011
Dušan Pavlík
OM2ADP

KV conditions

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RSS DX expeditions

  • Senegal: Feb 6-Mar 31, 2023 -- 6W -- QSL via: LoTW
  • Solomon Is: Feb 15-Apr 30, 2023 -- H44MS -- QSL via: DL2GAC
  • St Martin: Mar 3-Apr 1, 2023 -- Feb 26-Mar -- QSL via: LoTW
  • Cape Verde Is: Tue 8-Apr 5, 2023 -- D44KIT -- QSL via: LoTW
  • Reunion: Mar 9-27, 2023 -- FR -- QSL via: LoTW
  • South Sudan: Mar 13-Apr 22, 2023 -- Z81D -- QSL via: LoTW
  • Norfolk I: Mar 17-31, 2023 -- Norfolk I -- QSL via: LoTW
  • Vanuatu: Mar 18-28, 2023 -- YJ0CA -- QSL via: See Web
  • St Kitts and Nevis: Mar 19-Apr 1, 2023 -- V4 -- QSL via: LoTW
  • Guadeloupe: Mar 20-Apr 3, 2023 -- one of AS -- QSL via: LoTW

Translation

RSS Contesty

  • N1V Hawaii EME
    1700WITH, Mar 21 N1V Hawaii EME, Mar 22 N1V Hawaii EME, Mar 25 N1V Hawaii EME, Mar 26
  • QRP Fox Hunt
    0100WITH-0230WITH, Mar 24
  • NCCC RTTY Sprint
    0145WITH-0215WITH, Mar 24
  • NCCC Sprint
    0230WITH-0300WITH, Mar 24
  • K1USN Slow Speed Test
    2000Z-2100Z, Mar 24
  • CQ WW WPX Contest, SSB
    0000WITH, Mar 25 to 2359Z, Mar 26
  • FOC QSO Party
    0000Z-2359Z, Mar 25
  • UBA Spring Contest, 6m
    0600Z-1000Z, Mar 26
  • K1USN Slow Speed Test
    0000WITH-0100WITH, Mar 27
  • QCX Challenge
    1300Z-1400Z, Mar 27

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Recent Comments

  • om0aao on Elaborated answers for radio amateur exams
  • Kybergreg on Elaborated answers for radio amateur exams
  • OM1DS on Diverse reception - interference suppression
  • Dave Pergamon on 3Y0J - why was he dropped from the RA9USU team?
  • Battery-powered FT-857D on HA DX Contest 2023

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OM VHF LOW POWER CONTEST

  • Results of OM VHF LOW POWER CONTEST 2005
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  • Result list OM VHF LOW POWER CONTEST 2010
  • Result list OM VHF LOW POWER CONTEST 2011
  • Result list OM VHF LOW POWER CONTEST 2012
  • Result list OM VHF LOW POWER CONTEST 2013
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  • Result list OM VHF LOW POWER CONTEST 2015
  • OM LOW POWER VHF CONTEST 2016
  • Results OM VHF LOW POWER CONTEST 2017
  • Result list OM VHF LOW POWER CONTEST 2019
  • OM VHF LOW POWER CONTEST logs received 2020
  • Results of the OM VHF LOW POWER Contest 2020
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  • OM LOW POWER VHF CONTEST 2022

CQ.sk

Thank you for visiting this portal designed for all radio amateurs from OM and OK.

We bring you current information from the amateur radio world, however, we do not want to be narrowly focused on one area, therefore, new articles from each circle will be added to these pages practically daily, which concerns us HAMs.

We would ask everyone, who can contribute their articles, ideas, stimuli, to be actively involved in building this portal. It's not a portal to those, what they created it for, but for all of you.

If you have any questions, please contact the administrator at: admin@cq.sk. Thank you and we look forward to meeting you at the band! 73 by OM0RX IS OM0AAO.

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