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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.

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.
Bias Tee BOX AC/DC SMD Bias Tee BOX AC/DC SMD Bias Tee BOX AC/DC SMD
Bestseller

Bias Tee BOX AC/DC SMD

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.
Bias Tee BOX DC SMD Bias Tee BOX DC SMD Bias Tee BOX DC SMD

Bias Tee BOX DC SMD

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.
3BPF RX board 3BPF RX board 3BPF RX board

3BPF RX board

78.65 € (tax incl.)
This is simply RX board with three Band Pass Filters. You can use it together with RX triplexer to obtain higher BP filtering.
2-way active splitter 2-way active splitter 2-way active splitter

2-way active splitter

76.23 € (tax incl.)
This is very useful device - this is active splitter version. It can provide equal voltages, equal current, or equal power to matched or unmatched loads. Input low noise amplifier can eliminate insertion loss of the...
BCD to DEC TTL converter BCD to DEC TTL converter BCD to DEC TTL converter

BCD to DEC TTL converter

68.97 € (tax incl.)
Simply but powerful converter/decoder from BCD data in TTl logic to one of eight. You can use it everywhere you have less wires than you need.
RX Protection limiter with CMCC BOX RX Protection limiter with CMCC BOX RX Protection limiter with CMCC BOX

RX Protection limiter with CMCC BOX

85.91 € (tax incl.)
This protection limiter box is able to protect your receiver against the high power RF signals and prevent from destruction.
RX Coax Match & limiter with CMCC BOX RX Coax Match & limiter with CMCC BOX RX Coax Match & limiter with CMCC BOX

RX Coax Match & limiter with CMCC BOX

83.49 € (tax incl.)
This device is impedance matching transformer for 75 to 50 or 50 to 75 Ohm. It's designed for your RX antenna system and offer more than impedance matching.
3-way active splitter in BOX 3-way active splitter in BOX 3-way active splitter in BOX

3-way active splitter in BOX

116.16 € (tax incl.)
This active splitter allows you to split one antenna into multiple RX. The splitter can also be used to split a reference frequency, for example 10MHz. The outputs have high isolation and minimal difference in...
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