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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.

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.
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.
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.
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.
191.18 € (tax incl.)
This is IP controller designed as a universal 16 output with positive or negative output drivers.
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.
185.13 € (tax incl.)
This is IP controller designed for direct connection to K9AY++ and 7ANT RC controllers.
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.
332.75 € (tax incl.)
Antenna stack match with two outputs and phase shifter.
292.82 € (tax incl.)
Antenna stack match with two or three outputs.
187.55 € (tax incl.)
Use Variable Attenuator to split power into more Power Amplifiers.
67.76 € (tax incl.)
Common mode choke coils work as a simple wire against differential mode current (signal), while they work as an inductor against common mode current (noise).
95.59 € (tax incl.)
Common mode choke coils work as a simple wire against differential mode current (signal), while they work as an inductor against common mode current (noise).
127.05 € (tax incl.)
Common mode choke coils work as a simple wire against differential mode current (signal), while they work as an inductor against common mode current (noise).
Showing 1-20 of 42 item(s)

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