1
/
of
2
RF Guru
RX 75Ω Line Isolator +30 dB CMR (500 kHz – 200 MHz)
RX 75Ω Line Isolator +30 dB CMR (500 kHz – 200 MHz)
Regular price
€99,00 EUR
Regular price
Sale price
€99,00 EUR
Unit price
/
per
Tax included.
Couldn't load pickup availability
Handmade Production — All RF.Guru products are handmade. Fulfilment may vary with order volume. Please allow 2–3 weeks for assembly and shipping.
This compact receive-only line isolator is optimized for active antennas, delivering more than +30 dB common-mode rejection across the HF spectrum. Each unit includes our short RVS ground peg to ensure a reliable ground path and reduced pickup noise.
Related Reading
The Importance of a High-Quality Common-Mode Choke or Line Isolator
What Is the Biggest Effect of a Line Isolator?
Technical Overview for the RX 75Ω Line Isolator
Specs at a Glance
| Parameter | Specification |
|---|---|
| Application | Receive-only (RX) — active antennas |
| Impedance | 75 Ω |
| Frequency Range | 500 kHz – 200 MHz |
| Common-Mode Rejection | > 30 dB across HF spectrum |
| Insertion Loss | < 2 dB |
| Configuration | 1:1 UNUN choke |
| Connector | F-type (IP66 sealed with tape) |
| Ground | Includes short RVS ground peg |
Function
- Chokes common-mode currents on coax feedlines
- Provides a clean ground path for noise pickup via the included RVS ground stake
- Compact receive-only 1:1 UNUN choke for active antennas
- Less than 2 dB insertion loss
Mechanical Characteristics
- Professional-grade 75Ω F-connector
- IP66 rated after sealing with self-vulcanizing tape or equivalent
Performance
Common-mode rejection performance was measured using two Tekbox current clamps in a differential setup. With a wideband noise source injected, spectrum analysis confirmed rejection of more than +30 dB across the HF spectrum.
Mini-FAQ
- Is it transmit-rated? — No, this isolator is designed for receive-only applications.
- What connectors are used? — Professional 75Ω F-connectors (IP66 sealed when taped).
- Why is a ground peg included? — To provide a defined ground reference and bleed off noise pickup.
- How much insertion loss? — Less than 2 dB across its working range.
- How effective is it? — Provides wideband >30 dB common-mode rejection from 500 kHz to 200 MHz.
Share
