Low-noise RF amplifier 100 kHz – 4 GHz ZK04-UM Zeenko UM Series, USB-C
ID: 1201358
zł55.93
Tax included
zł45.47 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)
Pmod I2S2 is a module with 24-bit A / C and D / C audio converters derived from standard 3,5 mm Jack connectors. Thanks to them, it is possible to send and receive stereo audio signals using the I2S protocol. Digilent 410-379
zł132.35
3 weeks
No product available!
Zeenko ZK06-UM is a precise, wideband RF amplifier for the 10 MHz – 6 GHz range, designed for high-sensitivity measurements with low interference. Powered via USB-C and optimized for use with devices such as the tinySA ULTRA, it offers high linearity and a low noise figure across the entire supported band.
zł55.69
24h
Available quantity: 10
Available
A stereo tube preamplifier based on 6K4 tubes. Designed for use with active speakers or an additional amplifier and passive speakers. SUCA-AUDIO TUBE-T1
zł253.07
4 weeks
No product available!
The NE5532 XH-M164 preamplifier module is a compact 12V audio device that improves sound quality thanks to the NE5532 chip. It has a convenient output interface and excellent performance, perfect for audio projects such as amplifiers and sound processors.
zł23.90
24h
Available quantity: 11
Available
Module with active low-pass filter. Dedicated to the bass column (subwoofer)
zł13.68
24h
Available quantity: 9
Available
Available
Class D digital audio amplifier. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 11 to 26 V
zł63.22
4 weeks
No product available!
TPA3110 digital stereo audio amplifier module. The system allows you to connect two speakers with an impedance from 4 Ω to 8 Ω and a power of 15 W
zł14.49
24h
Available quantity: 2
Available
The TDA7498 audio amplifier module offers 2x100W power, enabling connection via Bluetooth, TF card and AUX. Powered by 12-24V DC, it is compatible with speakers with a resistance of 4 to 8Ω and is characterized by compact dimensions.
zł53.23
4 weeks
No product available!
The Class D digital audio amplifier module has two channels with a power of 15 W and can work with speakers from 4 to 8 Ω. Powered with the voltage ranging from 8 to 26 V. Bluetooth communication
zł29.42
24h
Available quantity: 3
Available
Stereo audio amplifier based on the TPA3116D2 chip. It can be powered from 12 to 26 V and has two 120 W outputs. XH-M543
zł34.46
24h
Available quantity: 2
Available
Audio module with DAC, headphone amplifier and display, designed to work with the Raspberry Pi. It is based on the PCM5100A system and communicates via the I2S interface. Pimoroni PIM482
zł158.14
24h
Available quantity: 4
Available
Audio amplifier module with three output channels. It can be powered with the voltage from 12 to 24 V and has two outputs with a power of 50 W (left and right) and one with a power of 100 W (bass)
zł117.56
4 weeks
No product available!
No product available!
Audio amplifier module with three output channels. It can be powered from 12 to 24 V and has two 50 W outputs (left and right) and one 100 W output (bass). Equipped with Bluetooth 5.0 communication
zł114.78
4 weeks
No product available!
Zeenko ZK07-BM is a low-noise, wideband amplifier with very high gain, powered by a battery and intended for operation in the 30 MHz – 6 GHz band. Ideal for compensating losses in long antenna lines, it provides up to 43 dB of gain and very good noise performance. Recommended for installation as close to the antenna as possible in receiving and measurement paths.
zł103.97
6 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.