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qro.cz

qro.cz

My love for electronic started in my childhood, with a metal nail in a wall socket and the discovery of AC current :) First steps and soldering with soldering iron, old tube radios and first "baby" walkie talkie. The discovery of the CB band and later 11m SSB operation, where it was possible to work DC with the whole world at that time. Thanks to local amateur radio operators I got on the HF, VHF and UHF bands. Thought the local radio club OK2KFK and contest station OL2R, I made my way to OL7M and building a large M/M contest QTH. The need for more complex controls, switching, RX antennas and other equipment led to many products on RemoteQTH.com web. Later, I started making other products in my company under the QRO.cz brand.

Now we are dedicated not only to the production for radio amateurs, but also to custom development and production in the field of RF. The next steps are also towards remote control via the Internet, IoT and other modern technologies.

131.89 € (tax incl.)
Unique product that combines universal transformer, preamplifier, simply Low Pass Filter, Bias Tee, front-end protection and common-mode output filter.
100.43 € (tax incl.)
The splitter or combiner is a very useful device. It can provide equal voltages, equal current, or equal power to matched or unmatched loads.
83.49 € (tax incl.)
Beverage antennas provide one of the least expensive and most reliable ways to improve DX capabilities on the low frequencies.
83.49 € (tax incl.)
Beverage antennas provide one of the least expensive and most reliable ways to improve DX capabilities on the low frequencies.
105.27 € (tax incl.)
This is simply K9AY feeder box with direction switch, variable and fixed Rload and protections. Coaxial output has got common-mode current filter. 
73.81 € (tax incl.)
This K9AY one direction is ideal for SO2R and Multi/Multi. Sharing one direction into more receivers. Also easy to phasing it into the array.
235.95 € (tax incl.)
This is 2 element beverage antenna array. In this End-Fire array the beverage antennas are very close to each other. Usually 2 to 6 meters. One beverage is shifted to front by the stagger distance. This array needs...
235.95 € (tax incl.)
This is 2 element beverage antenna array. In this End-Fire array the beverage antennas are very close to each other. Usually 2 to 6 meters. One beverage is shifted to front by the stagger distance. This array needs...
347.27 € (tax incl.)
Antenna stack match with two outputs and phase shifter.
307.34 € (tax incl.)
Antenna stack match with two or three outputs.
187.55 € (tax incl.)
Use Variable Attenuator to split power into more Power Amplifiers.
76.23 € (tax incl.)
A bias tee is used to insert AC or DC power into an HF signal to power remote antenna preamplifiers (DC), Bi-directional beverages (AC) or other devices.
75.02 € (tax incl.)
A bias tee is used to insert DC power into an HF signal to power remote antenna amplifiers or other devices.
Showing 1-20 of 48 item(s)

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