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25. June 2022
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European Hamradio CQ portal

Antennas, radio stations and amateur broadcasting and reception

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preamplifier

Zvyčajne sa používa najmä anténny predzosilňovač. Jeho úlohou je zosilniť slabý prijatý signál anténou na úroveň, ktorá je lepšie spracovaná prijímačom. Na vyšších VKV pásmach je dôležitou súčasťou príjmového reťazca pretože umožňuje dosiahnuť nízke šumové číslo, ktoré by inak bolo zhoršené aj stratami v napájacom kábli medzi anténou a prijímačom.

Katedrála na ostrove Svätá Helena
VHF+SHF 

ZD7GWM / B beacon captured by F0FYF on 144 MHz for distance 7000 km!

6. March 2021 om0aao 0 Comments CW, preamplifier, vkv

Garry ZD7GWM recently launched a lighthouse on St. Helena Island 144,475 MHz with a power of 20W CW. OM0AAJ Jano

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Screenshot APRS programu UI-View
Software VHF+SHF 

How to get started with APRS via International Space Station (ISS)

7. August 202017. June 2022 admin 0 Comments preamplifier, satellite, vkv, yagi

While there is no APRS in OK (While there is no APRS in OK) While there is no APRS in OK, v OM sa až na výnimky s týmto systémom

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LF+HF Technique 

Low noise preamplifier OZ2OE 21 – 30 MHz

7. August 202024. June 2022 admin 0 Comments preamplifier

The author of the following connection is Ole OZ2OE. The original description in English can be found at http://hjem.get2net.dk/ole_nykjaer/oz2oe/hfpreamp/hfpreamp.html. we thank you! Preamplifier to “deaf” HF receiver. Suitable

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Technique VHF+SHF 

Low noise preamplifier on 144 MHz OZ2OE

7. August 20201. September 2020 admin 0 Comments preamplifier, vkv

Another article from Ole OZ2OE is a low - noise preamplifier on 144 MHz s BF981, which makes a profit 23 dB at noise

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FO-29
Software VHF+SHF 

Satellite DX-ing on FO-29

7. August 202010. November 2020 admin 2 Comments DK7ZB, preamplifier, satellite, TCVR, vkv

The FO-29 is one of the satellites providing the greatest DX capabilities. The advantage is stable operation, good track height (polar, with perige between 800

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Predzosilňovač pre beverage anténu
LF+HF Technique 

Preamplifier for beverage antenna

7. August 202024. June 2022 admin 1 Comment antenna, preamplifier

Beverage antenna as a special receiving antenna has the disadvantage of lower gain and thus subjectively attenuates the signals when switching

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Beverage antenna
LF+HF Technique 

Beverage antenna

7. August 202017. June 2022 admin 0 Comments antenna, preamplifier

Beverage antenna is a special receiving antenna suitable especially for lower HF bands. In the CQ WPX Conteste, OM0A used a beverage

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Schéma GaAs FET predzoslňovača
Technique VHF+SHF 

Simple GaAs FET Preamplifier on 144 a 432 MHz

7. August 202024. June 2022 admin 0 Comments preamplifier, vkv

Today it is not a problem to get a solid GaAs transistor, nevertheless, the design of the preamplifier has two pitfalls - obtaining quality capacitance

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Lomnický štít z Kráľovej hole v zime
Contesting VHF+SHF 

Lomnický štít: disadvantage of VHF races?

7. August 20203. April 2021 admin 0 Comments contest, DK7ZB, preamplifier, vkv

When it comes to Lomnický štít and VHF races, most knowledgeable radio amateurs will remember the second highest peak of the Tatras as an ideal place,

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J52HF QSL lístok
Digital modes Ham information LF+HF VHF+SHF 

J52EME – J52HF Guinea-Bissau

7. August 202017. June 2022 admin 0 Comments antenna, EME, preamplifier, QSL, vkv

SSB League are OK / OM races, SSB League are OK / OM races. SSB League are OK / OM races

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Dočasný shack OM0AAO na satelity
Software Technique VHF+SHF 

Like on satellites?

7. August 202024. June 2022 admin 1 Comment DK7ZB, preamplifier, satellite, SDR, vkv, yagi

Operation via amateur radio satellites is a good option for VHF DX operation even from otherwise unsuitable QTH. And there are those

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Hamradio discussion

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

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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

  • Evaluation of the SNP race 2007Evaluation of the SNP race 2007
    In categories: Contesting, LF+HF  contest
    She took part in this race 45 stations, 25 from Slovakia and 20 from Bohemia and Moravia. The newspapers still showed up ...read more
  • Changes to the conditions of the MOON ContestChanges to the conditions of the MOON Contest
    In categories: Contesting  contest
    Conditions of the MOON contest for one year 2006 they are .: here:.. And what changes it brings? 1. MOON becomes a sprint contest, therefore ...read more
  • E7 - the new prefix of Bosnia and HerzegovinaE7 - the new prefix of Bosnia and Herzegovina
    In categories: DXbulletin, Ham information  DX
    A few days ago, a new E7A prefix block for Bosnia and Herzegovina was formally announced at a press conference in Sarajevo - ...read more
  • 99 anniversary of the sinking of the Titanic99 anniversary of the sinking of the Titanic
    In categories: DXbulletin, LF+HF  CW, DX, QSL, SSB
    When on 10. April 1912 the then largest steamer in the world, the Titanic, sailed, belonging to White Star Line on its first voyage ...read more
  • How to add your own articles on www.cq.skHow to add your own articles on www.cq.sk
    In categories: Ham information
    You would also like, so that there is at least one of your own articles on www.cq.sk? if yes, then the following lines are specified ...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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CQ.sk supports the Moon contest

MOON contest

OK5IM antennas

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Partners

Svetelektro.com
SATTECH TV, SAT and measuring technology

RSS DX expeditions

  • Gabon: Jun 1-Jul 31, 2022 -- TR8CR -- QSL via: F6AJA (B/d)
  • Macquarie I: Jun 15-Jul 31, 2022 -- VK0MQ -- QSL via: LoTW
  • Somalia: Jun 16-Jul 16, 2022 -- 6O1OO -- QSL via: See Info
  • Zimbabwe: Jun 17-29, 2022 -- Z21RU -- QSL via: LoTW
  • Ogasawara: Jun 18-26, 2022 -- JD1BMH -- QSL via: JD1BMH Buro
  • Balearic Is: Jun 20-27, 2022 -- DL7MDX -- QSL via: LoTW
  • Yemen: Jun 23-Jul 3, 2022 -- 7O -- QSL via: DL7ZM Direct
  • Madeira: Jun 24-28, 2022 -- CT9 -- QSL via: unknown
  • Ogasawara: Jun 24-Jul 2, 2022 -- JD1AJD -- QSL via: LoTW
  • Market Reef: Jun 26-Jul 6, 2022 -- OJ0 -- QSL via: LoTW

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 ISS Kenwood output stage kv meteor scatter N1MM OM9OT OM Activity Contest preamplifier receiver QO-100 QRP QSL RTTY satellite SDR SSB SSB liga sub-regional SWL TCVR vkv WSJT yaesu yagi amplifier

Translation

 Edit Translation

RSS Contesty

  • QRP Fox Hunt
    0100WITH-0230WITH, Jun 24
  • NCCC RTTY Sprint
    0145WITH-0215WITH, Jun 24
  • NCCC Sprint
    0230WITH-0300WITH, Jun 24
  • K1USN Slow Speed Test
    2000Z-2100Z, Jun 24
  • Pajajaran Bogor DX Contest
    0000Z-2359Z, Jun 25
  • UFT QRP Contest
    0600WITH-0900WITH, Jun 25 and 1400Z-1700Z, Jun 25
  • Ukrainian DX DIGI Contest
    1200WITH, Jun 25 to 1200Z, Jun 26
  • His Maj. King of Spain Contest, SSB
    1200WITH, Jun 25 to 1200Z, Jun 26
  • ARRL Field Day
    1800WITH, Jun 25 to 2100Z, Jun 26
  • K1USN Slow Speed Test
    0000WITH-0100WITH, Jun 27

Linky

  • Amateur radio portals and websites of national amateur radio organizations
  • Manufacturers and sellers of amateur radio equipment

Recent Comments

  • om0aao on Memorial of Ondrej Oravec, OM3AU 2022
  • Edy on Memorial of Ondrej Oravec, OM3AU 2022
  • om1aeg on FX-4C SDR transceiver
  • om1aeg on FX-4C SDR transceiver
  • IVULIK on Xiegu X6100 SDR KV transceiver in operation

Amateur radio portal CQ.sk

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Subdomény cq.sk

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OM VHF LOW POWER CONTEST

  • Results of OM VHF LOW POWER CONTEST 2005
  • Ceny OM VHF LOW POWER CONTEST-u
  • Result list OM VHF LOW POWER CONTEST 2006
  • Ceny OM VHF LOW POWER CONTEST-u 2006
  • Result list OM VHF LOW POWER CONTEST 2007
  • Result list OM VHF LOW POWER CONTEST 2008
  • 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
  • Result list OM VHF LOW POWER CONTEST 2014
  • 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

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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