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1. July 2022
Latest:
  • Proposal of new licensing conditions for amateur radio stations
  • Improvements on OM0OVV and OM0ODA converters
  • Field day – 3. subregional races 2022
  • Youth Field Day 2022
  • EUHFC 2022 canceled

European Hamradio CQ portal

Antennas, radio stations and amateur broadcasting and reception

European Hamradio CQ portal

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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).

MRF9180 VKV zosilňovač
Technique VHF+SHF 

Amplifier on 144 MHz s MRF9180 / MRF186

15. September 202117. June 2022 om0aao 0 Comments output stage, 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, output stage, 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 Technique 

Where to buy parts for an electronic amplifier?

25. December 202023. December 2020 om0aao 0 Comments output stage, 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 Technique 

K2TR filters for SO2R and multi operation

22. November 202017. June 2022 om0aao antenna, output stage, 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, output stage, 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
Technique 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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Wiring diagram of PA with V-MOS on KV. The transformers and the terminals of the transistor are shown in the lower part of the figure.
LF+HF Technique 

Cheap KV PA with V-MOS

7. August 202024. June 2022 admin 0 Comments DK7ZB, output stage, amplifier

V-MOS-y IRF5xx and IRF6xx are suitable transistors for a simple broadband linear PA with a power of tens of watts. From a fifty - crown transistor at

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Technique VHF+SHF 

100W PA with MRF317 according to OZ2OE

7. August 202024. June 2022 admin 0 Comments output stage, vkv, amplifier

Ole allowed us an interesting final stage – OZ2OE - translate and publish on CQ.sk. The original in English can be found at http://hjem.get2net.dk/ole_nykjaer/oz2oe/mrf317/317.html.

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Obr.1.: Vnútro výkonového modulu S-AV17
Technique 

Typical S-AV17 power circuit failure

7. August 20204. October 2020 admin 0 Comments output stage, vkv, amplifier

Power circuit Toshiba S-AV17 / 50W which is used in some mobile stations for 2m (e.g. DRAGON SY130) after the time of use

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PA 430 – 470 MHz
Technique VHF+SHF 

Simple PA 20W 430 – 470 MHz

7. August 20205. October 2020 admin 0 Comments output stage, vkv, amplifier

Jano OM8AAK is the author of an interesting article on PA, which he managed to compile for a few crowns. The basis is a hybrid PA

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Vnútorné prevedenie Acom 1500
LF+HF Reviews 

Acom 1500

7. August 202017. June 2022 admin 0 Comments acom, output stage, amplifier

Acom is preparing a new KV + 6m output stage marked Acom 1500 based on the successful Acom model 1000. The novelty will use a tube

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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

  • Results of the 2nd subregion 2016Results of the 2nd subregion 2016
    In categories: Contesting, VHF+SHF  contest, sub-regional, vkv
    Watch. 20160621 144 MHz, Single 144 MHz LP, Single 144 MHz, Multi 432 MHz, Single 432 MHz LP, Single 432 ...read more
  • Invitation - OTC SARA Memorial - spring SSB raceInvitation – OTC SARA Memorial – Invitation - OTC SARA Memorial - spring SSB race
    In categories: Contesting, LF+HF  contest, SSB
    On Sundays 14. may 2017 from 06,00 do 07,00 UTC (from 08,00 do 09,00 throw) order Old – Invitation - OTC SARA Memorial - spring SSB race ...read more
  • Amateur radio celebrates MDŽAmateur radio celebrates MDŽ
    In categories: DXbulletin, Ham information, LF+HF  DX
    Every year 8. March, women all over the world have a holiday. International Amateur Day is also celebrated by our amateur radio. We wish them everything for the holiday ...read more
  • TK5SHF and TK21SAT from CorsicaTK5SHF and TK21SAT from Corsica
    In categories: VHF+SHF  QO-100, satellite, vkv
    The group of French VHF radio amateurs will be on June 4-20 2021 active at 50MHz to 24GHz in SSB and DATV from Corsica as TK5SHF and on ...read more
  • Hurricane seasonHurricane season
    In categories: Ham information
    It is worth noting, that some hurricanes, which affect the US are returning across the Atlantic and bringing adverse weather in the north ...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

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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
  • Yemen: Jun 23-Jul 3, 2022 -- 7O -- QSL via: DL7ZM Direct
  • Ogasawara: Jun 24-Jul 2, 2022 -- JD1AJD -- QSL via: LoTW
  • Market Reef: Jun 26-Jul 6, 2022 -- OJ0 -- QSL via: LoTW
  • Uganda: Jun 26-Jul 13, 2022 -- 5X3R -- QSL via: LoTW
  • Greenland: Jun 27-Jul 11, 2022 -- OX3LX -- QSL via: OZ0J
  • Liechtenstein: Jun 28-Jul 5, 2022 -- HB0 -- QSL via: LoTW
  • St Pierre and Miquelon: Jun 28-Jul 12, 2022 -- FP -- 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

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RSS Contesty

  • Phone Weekly Test
    0230WITH-0300WITH, Jun 29
  • Invitation and race conditions
    1200Invitation and race conditions, Jun 29
  • CWops Test (CWT)
    1300Z-1400Z, Jun 29
  • Mini-Test 40
    1700Z-1759Z, Jun 29
  • Mini-Test 80
    1800Z-1859Z, Jun 29
  • CWops Test (CWT)
    1900Z-2000Z, Jun 29
  • CWops Test (CWT)
    0300WITH-0400WITH, Jun 30
  • CWops Test (CWT)
    0700WITH-0800WITH, Jun 30
  • RTTYOPS Weeksprint
    1700Z-1900Z, Jun 30
  • RAC Canada Day Contest
    0000Z-2359Z, Jul 1

Linky

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

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Amateur radio portal 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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