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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.

4-way PTT splitter in BOX 4-way PTT splitter in BOX 4-way PTT splitter in BOX
Bestseller

4-way PTT splitter in BOX

65.34 € (tax incl.)
This is simply 4-way analog splitter. Designed for no-delay PTT switching. From one input to four outputs. You can split PTT signal to four independent devices.
4-way PTT sequencer in BOX 4-way PTT sequencer in BOX 4-way PTT sequencer in BOX
Bestseller

4-way PTT sequencer in BOX

65.34 € (tax incl.)
This is simply 4-way PTT sequencer, designed for PTT switching from one input to 4 outputs with different (fixed) delay.
4-way PTT sequencer board 4-way PTT sequencer board 4-way PTT sequencer board
Bestseller

4-way PTT sequencer board

38.72 € (tax incl.)
This is simply 4-way PTT sequencer, designed for PTT switching from one input to 4 outputs with different (fixed) delay.
4-way PTT combiner in BOX 4-way PTT combiner in BOX 4-way PTT combiner in BOX

4-way PTT combiner in BOX

65.34 € (tax incl.)
This is simple analog 4-way combiner. There is no delay between inputs and output. Each input has its own LED indication and so does the output.
OLI IP 16 OLI IP 16 OLI IP 16

OLI IP 16

191.18 € (tax incl.)
This is IP controller designed as a universal 16 output with positive or negative output drivers.
3-way small splitter in BOX 3-way small splitter in BOX 3-way small splitter in BOX
Bestseller

3-way small splitter in BOX

61.71 € (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.
OLI IP 12 OLI IP 12 OLI IP 12

OLI IP 12

185.13 € (tax incl.)
This is IP controller designed for direct connection to K9AY++ and 7ANT RC controllers.
K9AY/4-WAY Antenna Switch Controller K9AY/4-WAY Antenna Switch Controller K9AY/4-WAY Antenna Switch Controller
Bestseller
Out of stock

K9AY/4-WAY Antenna Switch Controller

309.76 € (tax incl.)
This is antenna controller for K9AY and Bi-directional beverages. You can use DC control wires as well as AC/DC voltage over the coax to antenna. There are Band Pass Filters and preamplifier directly in the...
K9AY simply loops switch K9AY simply loops switch K9AY simply loops switch
Bestseller

K9AY simply loops switch

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. 
K9AY one direction K9AY one direction K9AY one direction
Bestseller

K9AY one direction

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.
RX small preamp with 2SC5551 in BOX RX small preamp with 2SC5551 in BOX RX small preamp with 2SC5551 in BOX
Bestseller

RX small preamp with 2SC5551 in BOX

61.71 € (tax incl.)
The RX small preamp is very simply low noise preamplifier module with 2SC5551 transistor based on W7IUV design. Use it as high IP preamplifier for RX antennas, buffer amplifier or small driver.
Stack Match 1-2 Stack Match 1-2 Stack Match 1-2
Bestseller

Stack Match 1-2

332.75 € (tax incl.)
Antenna stack match with two outputs and phase shifter.
Stack Match 1-3 Stack Match 1-3 Stack Match 1-3
Bestseller

Stack Match 1-3

292.82 € (tax incl.)
Antenna stack match with two or three outputs.
Variable HP Attenuator Variable HP Attenuator Variable HP Attenuator
Bestseller
Out of stock

Variable HP Attenuator

187.55 € (tax incl.)
Use Variable Attenuator to split power into more Power Amplifiers.
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