43.56 €
(tax incl.)
A bias tee is used to insert DC power into an HF signal to power remote antenna amplifiers or other devices.
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.
38.72 €
(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.
85.91 €
(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).
55.66 €
(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...
31.46 €
(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.
43.56 €
(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).
50.82 €
(tax incl.)
RX preamplifier with variable gain, protections and power over coax.
65.34 €
(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).
36.30 €
(tax incl.)
Small RX preamplifier module with 2N5109, bypass and variable gain.
43.56 €
(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.
83.49 €
(tax incl.)
High Power 6-to-1 antenna switch - six outputs to one input.
50.82 €
(tax incl.)
This is simply RX triplexer. There are three band pass filters used as splitters or combiners.
60.50 €
(tax incl.)
This is two port antenna switch - middle box between pair of Bi-Directional antennas with single coax output.
56.87 €
(tax incl.)
Beverage antennas provide one of the least expensive and most reliable ways to improve DX capabilities on the low frequencies.
56.87 €
(tax incl.)
Beverage antennas provide one of the least expensive and most reliable ways to improve DX capabilities on the low frequencies.
53.24 €
(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.
33.88 €
(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.
27.83 €
(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.
49.61 €
(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.
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