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25. September 2023
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amplifier

An amplifier is an electrical device, which will increase the voltage, current and power of the applied signal. Amateur radio uses both transistor and electronic amplifiers (the tubes are more palatable at higher powers and have better voltage and current ratios).

Uganda
Digital modes DXbulletin LF+HF 

5X3K Uganda

7. August 20237. August 2023 om0aao 0 Comments antenna, CW, DX, FT8, kv, QSL, RTTY, SSB, amplifier

Peter OK1BOA and OK1FCJ together with David OK6DJ at the turn of September and October 2023 are preparing a 5X3K DX expedition to Uganda.

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Splitter pre RX antény
Reviews Projects, Mods, Fixes and Add-on's 

Hamparts OK2ZAW

13. July 202313. July 2023 om0aao 0 Comments antenna, kv, preamplifier, receiver, QRP, satellite, SWL, TCVR, vkv, yagi, amplifier

You are missing some electronic items, antenna parts or accessories? You like to make something yourself? Then try https://hamparts.shop Jan OK2ZAW

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Ľadovec
Digital modes DXbulletin LF+HF 

3Y0J Bouvet

10. January 202310. January 2023 om0aao 0 Comments antenna, CW, DX, Elecraft, FT8, QSL, SDR, SSB, yagi, amplifier

It is difficult to plan the logistics of such a huge project, such as DX expedition 3Y0J to Bouvet Island. After the sale of the originally intended vessel

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CQV-SWR120 digitálny merač výkonu a PSV
LF+HF Reviews 

CQV-SWR120 power meter and PSV meter with alarm

3. January 20239. January 2023 om0aao 0 Comments antenna, antenna tuner, power amplifier, kv, amplifier

The CQV-SWR120 is a digital power and standing wave ratio meter (PSV) in the range of 1.8MHz-54MHz. Full color 240 x 240 pixel LCD display

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Vypracované odpovede pre rádioamatérske skúšky
Ham information Projects, Mods, Fixes and Add-on's 

Elaborated answers for radio amateur exams

4. July 202227. March 2023 om0aao 6 Comments antenna, antenna tuner, CB, CW, power amplifier, 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.

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MRF9180 VKV zosilňovač
Projects, Mods, Fixes and Add-on's VHF+SHF 

Amplifier on 144 MHz s MRF9180 / MRF186

15. September 202117. June 2022 om0aao 0 Comments power amplifier, vkv, amplifier

Cheap VHF Amplifier How to Increase Device Power at 144 MHz? One option is an LDMOS amplifier with MRF9180. Tieto

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EGV+ TCVR EA3CGY
QRP Reviews 

EA3CGY kit for amateur radio

29. December 202029. December 2020 om0aao 0 Comments antenna tuner, CW, power amplifier, kv, receiver, QRP, SSB, TCVR, amplifier

Javier EA3GCY is a technical manager “QRP Ham Radio Kits”, companies, which since 1990 produces various DIY kits for radio amateurs. They are

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Koncový stupeň s elektrónkou
Ham information Projects, Mods, Fixes and Add-on's 

Where to buy parts for an electronic amplifier?

25. December 202013. September 2022 om0aao 0 Comments power amplifier, amplifier

You are one of the radio amateurs, who make the final stage themselves? It is possible to make a tube amplifier of higher power if you have the necessary knowledge

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Tranzistorový zosilňovač
Contesting LF+HF Projects, Mods, Fixes and Add-on's 

K2TR filters for SO2R and multi operation

22. November 202017. June 2022 om0aao antenna, power amplifier, TCVR, amplifier

Each, who started to deal with SO2R or multi operation with the possibility of working on multiple bands simultaneously encountered the issue of protection

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RF-Kit zosilňovač RF2K-S
Reviews 

RF-Kit amplifier RF2K-S for short waves

18. November 202017. November 2020 om0aao 6m, power amplifier, remote station, amplifier

RF-Kit DH3NAB, a lesser-known company in our market, has innovated their short-wave amplifier kit with two LDMOSFETs., B26-PA RF2K-S. Not

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PA 2 x BLF7G22L-130N
Projects, Mods, Fixes and Add-on's VHF+SHF 

Edit Nokia PA PCB with 2 x BLF7G22L-130N at 2.4GHz

14. September 202013. September 2020 om0aao QO-100, satellite, vkv, amplifier

Jim Smith G7NTG is the author of the list, how to retune commercial end stage with nokia 2 x BLF7G22L-130N at 2.4GHz for use on 2,4

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

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Questions, answers and ideas for constructions, homebrew, equipment modifications

Miscellaneous Hamradio discussion forum
This includes posts, which cannot be included elsewhere…

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Selection of articles

  • How to build an antenna mast with a hexbeam antenna - OM0ETHow to build an antenna mast with a hexbeam antenna – OM0ET
    In categories: LF+HF, Projects, Mods, Fixes and Add-on's  antenna, kv
    Paľo OM0ET documented the construction of an antenna mast with a hexbeam antenna – two months of work in a 37-minute video: 5 4 votes Article evaluation ...read more
  • Material on the organization of the QRP race in OKMaterial on the organization of the QRP race in OK
    In categories: Contesting, LF+HF, QRP  QRP, vkv
    Friends of QRP, as agreed at the VHF meeting in Holice, there was a meeting between the Czech Radio emissary Jirka OK1RI and the organizer ...read more
  • TATRA meeting 2020 is canceled for coronavirusTATRA meeting 2020 is canceled for coronavirus
    In categories: Ham information
    We must regret it, that this year's amateur radio meeting TATRY, which was to take place on the third weekend of November, this year ...read more
  • Radioamatersky stratosfericky balon STS-2 – start 15.1.2013Radioamatersky stratosfericky balon STS-2 – start 15.1.2013
    In categories: Ham information  RTTY, vkv
    Slovak radio amateurs will again touch the near space. After a successful flight, the STS-1 balloon is prepared by a team of radio amateurs from STSPROJECT.NET in cooperation with ...read more
  • SNP RACE - OM6SA Memorial, 76. anniversary of the SNPSNP RACE - OM6SA Memorial, 76. anniversary of the SNP
    In categories: Contesting, LF+HF, QRP
    The race is held annually in honor of the anniversary of the Slovak National Uprising and in memory of Alexander Korda OM6SA, which this race ...read more

OM HAM of the Year

Year 2004
Grad.. Ing. Jaroslav Just
OM3TA, SK


Year 2005
Rudolf Karaba
OM3PC


Year 2006
MUDr.Harry Činčura
OM3EA


Year 2007
Grad.. 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

HF conditions


CQ.sk supports the Moon contest

MOON contest

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SATTECH TV, SAT and measuring technology

Tags

6m 160m antenna antenna tuner callbook CB contest CQ WPX Contest CQ WW Contest CW diploma DK7ZB DX Elecraft EME FT8 Icom IOTA IOTA Contest Kenwood power amplifier kv meteor scatter N1MM OM9OT OM Activity Contest preamplifier receiver QO-100 QRP QSL remote station RTTY satellite SDR SSB SSB liga sub-regional SWL TCVR vkv WSJT yaesu yagi amplifier

RSS DX expeditions

  • East Kiribati: Sep 1-Oct 17, 2023 -- T32AZ -- QSL via: KH6QJ (B/d)
  • St Martin: Nov. 26-Dec 8, 2023 -- TO9W -- QSL via: LoTW
  • Micronesia: Oct 27-31, 2023 -- V63CB -- QSL via: LoTW
  • Cameroon: Nov 2-15, 2023 -- TJ9MD -- QSL via: (IK2VUC B/d)
  • Niue: Nov 3-10, 2023 -- E6AJ -- QSL via: CQ84AS (B/d)
  • Marquesas: Nov 4-19, 2023 -- TX7L -- QSL via: LoTW
  • Bahamas: Nov 5-10, 2023 -- C6A -- QSL via: LoTW
  • Timor read: Nov 8-27, 2023 -- 4W8X -- QSL via: LoTW
  • Tanzania: Nov 8-Dec 8, 2023 -- 5H3MB -- QSL via: LoTW
  • Chatham Is: Nov 9-22, 2023 -- ZL7A -- QSL via: LoTW

Translation

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RSS Contest Calendar

  • CQ Worldwide DX Contest, RTTY
    0000WITH, Sep 23 to 2400Z, Sep 24
  • NCCC Sprint Ladder
    0230WITH-0300WITH, Sep 29
  • UKEICC 80m Contest
    2000Z-2100Z, Sep 27
  • CWops Test (CWT)
    0300WITH-0400WITH, Sep 28
  • CWops Test (CWT)
    0700WITH-0800WITH, Sep 28
  • RSGB 80m Autumn Series, Data
    1900Z-2030Z, Sep 28
  • NCCC FT4 Sprint
    0100WITH-0130WITH, Sep 29
  • NCCC RTTY Sprint
    0145WITH-0215WITH, Sep 29
  • K1USN Slow Speed Test
    2000Z-2100Z, Sep 29
  • Mini-Test 80
    1800Z-1859Z, Sep 27

Weblink Directory

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  • Manufacturers and sellers of amateur radio equipment

Recent Comments

  • Gerry ( G3MS on cwcom and QRZCQ) on CW QSO over the Internet - you don't believe it?
  • tool-N on PMR 1/1
  • OM1ARH on LoRa APRS in Slovakia
  • OK1UNL on Diverse reception - interference suppression
  • FT-710 on Yaesu FT-710 firmware update

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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 and OM0AAO.

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