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Antennas, radio stations and amateur broadcasting and reception

European Hamradio portal

  • LF+HF
  • VHF+SHF
  • Projects, Mods, Fixes and Add-on's
  • Contesting
  • Ham information
  • Software
  • Digital modes
  • DXbulletin
  • QRP
  • Reviews

Projects, Mods, Fixes and Add-on's

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, filters, power supplies or antennas are things, which the skillful hands of a radio amateur can produce.

Yaesu FTX-1F
Reviews Projects, Mods, Fixes and Add-on's 

Yaesu FTX-1F

26. August 202426. August 2024 om0aao 2 Comments SDR, TCVR

Another novelty from the Tokyo exhibition is the FTX-1F from Yaesu, portable transceiver, which uses SDR technology and provides output power 6

Read more...
ICOM IC-7760
Reviews Projects, Mods, Fixes and Add-on's 

IC-7760

26. August 2024 om0aao 0 Comments CW, FT8, Icom, power amplifier, kv, receiver, SSB, TCVR

At the Tokyo Ham Fair, Icom presented the new KV+6m transceiver in the high-end category. Conceptually, the IC-7760 consists of a removable front panel and a body,

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SQUARE SDR
QRP Reviews Projects, Mods, Fixes and Add-on's 

SQUARE SDR

23. May 2024 om0aao 1 Comment receiver, QRP, remote station, SDR

The SQUARE SDR proves that it is possible to create a modern SDR with small dimensions. Its construction includes a printed circuit board with

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Ovládač k AlfaSPID rotátora SP5GNI
Projects, Mods, Fixes and Add-on's 

AlfaSPID SP5GNI rotator controller

29. April 202429. April 2024 om0aao 2 Comments

After the successful repair of the AlfaSPID rotator on the RDM-12 mast – replacement of the motor unit – I came across a feature in operation, which

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DC8PAT QO-100 feed pomocou 3D tlače
Projects, Mods, Fixes and Add-on's VHF+SHF 

QO-100 Irradiator DC8PAT Ice Cone Feed

24. April 2024 om0aao 0 Comments antenna, QO-100, satellite

Patrik DC8PAT designed an irradiator for the QO-100 satellite that can be manufactured using 3D printing. It is currently in version 2.1, which you can purchase

Read more...
RM Noise
Software Projects, Mods, Fixes and Add-on's 

RM Noise – AI interference suppression

29. December 2023 om0aao 0 Comments CW, receiver, SSB

The RM Noise project uses AI to remove noise and interference from a CW or voice radio signal. First, the system

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Meranie SNR pomocou SATGEN
Projects, Mods, Fixes and Add-on's 

SATSAGEN v.0.8.0.0

18. October 2023 om0aao 0 Comments

SATGEN in the latest version allows measurement of the noise figure (SNR). This function is added to the spectrum analyzer function in this program.

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ANAN-G2 SDR TCVR
Reviews Projects, Mods, Fixes and Add-on's 

ANAN-G2 KV and 6M 100W ultra high power SDR

11. October 2023 om0aao 0 Comments kv, remote station, SDR, TCVR

If you are interested in top KV and 6m devices, so you must have already heard about Apache Labs Pty Ltd.

Read more...
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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Xiegu G90
Projects, Mods, Fixes and Add-on's 

Xiegu G90 firmware V1.80 update

18. May 202318. May 2023 om0aao 0 Comments SDR, TCVR

Xiegu G90 is a compact and high performance KV SDR transceiver designed for radio amateur communication. With its compact design and simple

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JI1UDD VFO kontrolér pre Thetis alebo PowerSDR
Projects, Mods, Fixes and Add-on's 

VFO MIDI controller via USB for Thetis, PowerSDR according to JI1UDD

17. April 202319. April 2023 om0aao 0 Comments receiver, SDR, TCVR

Many radio amateurs are not fans of blackbox SDR devices. They argue that, that they lack the front panel of the device with the tuning knob.

Read more...
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Hamradio discussion

HF discussion forum
Include posts related to HF bands here (below 10m)

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

Projects, Mods, Fixes and Add-on's
Questions, answers and ideas for constructions, homebrew, equipment modifications

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

Online swapmeet
Sale – buy – exchange – I donate radio and electronics

New topic

Selection of articles

  • Summer camp for young radio amateurs 2005Summer camp for young radio amateurs 2005
    In categories: Ham information
    The OM3REU radio club is also organizing a summer camp for young radio amateurs this year. We would like to take this opportunity to ask all fans of the development of amateur radio ...read more
  • TRX-DUO SDR ZYNQ7010TRX-DUO SDR ZYNQ7010
    In categories: LF+HF, Reviews, Projects, Mods, Fixes and Add-on's  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 ...read more
  • OM3AG, SKOM3AG, SK
    In categories: Ham information
    He left the radio amateur and non-radio family unexpectedly on November 19 2020 Ing. Ladislav Kováč, OM3AG. The last farewell will be on Tuesday, November 24 at 12 o'clock ...read more
  • Results of the IARU Region 1 UHF Contest 2023Results of the IARU Region 1 UHF Contest 2023
    In categories: Contesting, VHF+SHF  vk
    After the unofficial results list, thanks to Paľ OM5CM, we also bring the final results list (Watch. 20231113). This race took place on the first of October ...read more
  • OM LOW POWER VHF CONTEST 2005OM LOW POWER VHF CONTEST 2005
    In categories: Contesting, VHF+SHF  vkv
    1) The Slovak amateur radio portal CQ.sk organizes QRP races on VHF, which take place on Sunday the first weekend in August (7.8.2005) from ...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

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RSS DX expeditions

  • Morocco: June 25-Christmas 31, 2025 -- CN2DX -- QSL via: F5LRL
  • St Pierre and Miquelon: Jun 28-Jul 14, 2025 -- FP -- QSL via: LoTW
  • Grenada: Jul 5-15, 2025 -- J38dx -- QSL via: LoTW
  • Cyprus SBA: Jul 8-15, 2025 -- ZC4MK -- QSL via: G0kom
  • Dodecanese: Jul 8-15, 2025 -- SV5 -- QSL via: LoTW
  • Benin: Christmas 8-Aug 6, 2025 -- TY5FR -- QSL via: LoTW
  • Belize: Jul 10-14, 2025 -- V31gt -- QSL via: W9HT
  • Cyprus: Jul 10-15, 2025 -- 5B -- QSL via: LoTW
  • Mariana Is: Jul 10-15, 2025 -- KH0 -- QSL via: LoTW
  • months for binding reasons: Jul 11-25, 2025 -- TF -- QSL via: VE2XB

RSS Contest Calendar

  • 4 States QRP Group Second Sunday Sprint
    0000WITH-0200WITH, Jul 14
  • K1USN Slow Speed Test
    0000WITH-0100WITH, Jul 14
  • ICWC Medium Speed Test
    1300Z-1400Z, Jul 14
  • OK1WC Memorial (MWC)
    1630Z-1729Z, Jul 14
  • ICWC Medium Speed Test
    1900Z-2000Z, Jul 14
  • Worldwide Sideband Activity Contest
    0100WITH-0159WITH, Jul 15
  • ICWC Medium Speed Test
    0300WITH-0400WITH, Jul 15
  • Phone Weekly Test
    0230WITH-0300WITH, Jul 16
  • Invitation and race conditions
    1145Invitation and race conditions, Jul 16
  • CWops Test (CWT)
    1300Z-1400Z, Jul 16

Weblink Directory

  • Radio amateur frequencies - how to listen?
  • Amateur radio portals and websites of national amateur radio organizations
  • Manufacturers and sellers of amateur radio equipment

Recent Comments

  • OM1AEG on Cq.sk runs on a new server - more reliable and faster thanks to Contabo
  • Palo on Increase in SZR member contributions from 2025
  • pablox on Proposal of new licensing conditions for amateur radio stations
  • om0aao on HF DXView online HF propagation map
  • om0amb on HF DXView online HF propagation map

Hamradio 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
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  • 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
  • Results OM VHF LOW POWER CONTEST 2021
  • 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 and OM0AAO.

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