Low-noise RF amplifier 100 kHz – 4 GHz ZK04-UM Zeenko UM Series, USB-C
ID: 1201358
5902186333857
zł58.34
Tax included
zł47.43 tax excl.
Zeenko ZK04-UM is a compact low-noise RF amplifier operating in the 100 kHz – 4 GHz range, powered via USB-C, featuring high linearity and low noise levels. Ideal for amplifying antenna signals or as a preamplifier for spectrum analyzers such as the tinySA ULTRA, especially above 3.5 GHz.
Description
The ZK04-UM is a wideband low-noise amplifier (LNA) powered via USB Type-C, part of the UM series from Zeenko. The device operates in the frequency range from 100 kHz to 4 GHz, offering moderate gain tailored to practical applications and a very low noise figure (NF). The high-PSRR LDO regulator effectively suppresses power-supply noise, resulting in better signal quality compared to standard USB-powered modules.
The module features a shielded system enclosure, a compact design, and the ability to adjust supply current by changing an external bias resistor. It is ideal as an antenna amplifier or a preamplifier for spectrum analyzers, enhancing sensitivity for devices such as the tinySA ULTRA.
Properties
- Frequency range: 100 kHz – 4 GHz
- Power supply: USB Type-C, 5 V
- Supply current: 26 mA (adjustable via bias resistor)
- Gain:
- 25 dB @ 100 kHz / 5 MHz
- 23 dB @ 10 MHz
- 21.5 dB @ 100 MHz
- 18 dB @ 1 GHz
- 14 dB @ 2 GHz
- 11 dB @ 3 GHz
- 9 dB @ 4 GHz
- Noise figure (NF):
- 2.3 dB @ 10 MHz
- 1 dB @ 100 MHz
- 0.7 dB @ 1 / 2 / 3 GHz
- 1 dB @ 4 GHz
- OP1dB (1 dB compression point):
- 13 dBm @ 10 MHz
- 16 dBm @ 100 MHz
- 17 dBm @ 1 / 2 GHz
- 18 dBm @ 3 GHz
- 17 dBm @ 4 GHz
- OIP3 (third-order intercept point):
- 22 dBm @ 10 MHz
- 27 dBm @ 100 MHz
- 26–28 dBm @ 1–4 GHz
- Power interface: USB-C
- Enclosure: shielded, compact
- Notes: low power, low noise, recommended moisture protection for outdoor use
- Compatibility: may replace SPF5189Z, SPF5043Z modules
1201358
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Other products in the same category (16)
A module with an active low-pass filter based on NE5532 systems. Dedicated to the bass column (subwoofer)
zł24.38
4 weeks
No product available!
Audio amplifier module with three output channels. It can be powered with the voltage from 12 to 18 V and has two outputs with a power of 10 W (left and right) and one with a power of 20 W (bass)
zł43.21
24h
Available quantity: 3
Available
Module with active low-pass filter. Dedicated to the bass column (subwoofer)
zł13.68
4 weeks
No product available!
80 W audio signal converter that reduces the speaker signal from the player to the level of RCA inputs. It allows you to connect to an external power amplifier. TSK TD-22
zł29.79
4 weeks
No product available!
50 W audio signal converter that reduces the speaker signal from the player to the level of RCA inputs. It allows you to connect the radio to an external power amplifier. Fwaeh FH-103
zł24.64
4 weeks
No product available!
100 W audio signal converter that reduces the speaker signal from the player to the level of RCA inputs. It allows you to connect the radio to an external power amplifier
zł44.54
4 weeks
No product available!
The sound card in the form of a module with a USB type B socket. It uses the ES9018K2M DAC converter, has a 3.5 mm jack audio output and two RCA connectors
zł126.71
4 weeks
No product available!
MP3 panel with a HiFi amplifier for installation in an audio device. It allows you to play files from USB memory, SD card, via AUX and Bluetooth. It has a built-in FM receiver
zł56.90
4 weeks
No product available!
MP3 panel with a HiFi amplifier for installation in an audio device. It allows you to play files from USB memory, SD card, via the audio connector and Bluetooth. It has a built-in FM receiver
zł49.48
24h
Available quantity: 3
Available
Module with two operational amplifiers OPA627
zł24.39
24h
Available quantity: 45
Available
4-channel stereo audio mixer module. It has one output to which the summed signal from 4 inputs comes out. It is powered with the voltage from 5 to 12 V
zł72.56
4 weeks
No product available!
4-channel stereo audio mixer in a metal housing. It has one output, on which the summed signal from 4 inputs is available. It is powered with the voltage from 5 to 12 V.
zł100.77
24h
Available quantity: 1
Available
2-channel stereo audio mixer module. It has four outputs, on which the summed signal from 2 inputs is available. It is powered with the voltage from 5 to 19 V
zł80.21
24h
Available quantity: 3
Available
2-channel stereo audio mixer in a metal housing. It has four outputs, on which the summed signal from 2 inputs is available. It is powered with the voltage from 5 to 19 V
zł94.89
4 weeks
No product available!
Audio preamplifier based on the NE5532 chip. Powered with symmetrical DC voltage in the range from 9 to 15 V
zł17.48
4 weeks
No product available!
Audio preamplifier based on the NE5532 chip. Powered with DC voltage in the range from 9 to 35 V (does not require symmetrical voltage)
zł15.47
4 weeks
No product available!
Zeenko ZK04-UM is a compact low-noise RF amplifier operating in the 100 kHz – 4 GHz range, powered via USB-C, featuring high linearity and low noise levels. Ideal for amplifying antenna signals or as a preamplifier for spectrum analyzers such as the tinySA ULTRA, especially above 3.5 GHz.