D2T Antenna (CS-D2T) Directive HF 1kW 1.5–30 MHz | COMSYSTEMS
Close
The Comsystems D2T wideband hf 1kw or CS-D2T is a high-performance wide-band HF at 1kw reliable communications across the 1.5–30 MHz spectrum, with extended operation up to 200 MHz.
The COMSYSTEMS D2T wideband hf 1kw antenna (formerly designated CS-D2T) is a professional directive HF antenna covering 1.5–30 MHz with 1 kW PEP power handling. The D2T antenna provides reliable long-range communication for military, government, and fixed station deployments.
The Comsystems D2T is a professional wideband hf 1kw antenna designed for operators who need reliable, low-SWR performance across all HF bands without retuning. Based on a folded-dipole multi-element design, the D2T provides excellent HF coverage from 1.5 to 30 MHz, with extended performance up to 200 MHz.
This antenna is engineered for restricted-space installations, offering impressive gain, strong directivity, and high power handling in a compact footprint.
With its horizontal directive configuration, the D2T wideband hf 1kw delivers stable performance for HF communication, ALE, military, government, embassy, industrial, and professional radio networks. It offers bi-directional directivity with gain ranging from –5 dBi to +5 dBi, ensuring efficient transmission and reception across the full HF spectrum.
⭐ Wideband Performance – No Tuner Required
The D2T wideband hf 1kw maintains excellent impedance matching with a low SWR across the entire HF band:
- SWR < 2:1 from 1.5 to 30 MHz
- SWR < 2.5:1 from 30 to 200 MHz
Thanks to its integrated 9:1 broadband transformer balun and 800-ohm termination resistor, the antenna remains stable and predictable, even under changing environmental conditions.
⭐ HF Directive Antenna for Professional Applications
Unlike vertical omnidirectional antennas, the D2T is a horizontal directive wideband hf 1kw antenna, providing:
- Better signal concentration
- Improved noise rejection
- Bi-directional radiation pattern
- More consistent performance on low and medium HF frequencies
This makes it ideal for skywave and NVIS-type communication, military networks, disaster-response HF systems, and base stations requiring dependable 24/7 HF operation.
⭐ Compact Size for Restricted Areas
Designed for installations with limited space, the CS-D2T requires only:
- 2 m length × 6 m width (installation footprint)
- Brochure D2T (CS-D2T.V.11-25) Engli…
- Compatible with 45–80 mm support mast
Mounting time is only 1 hour with two people, making it ideal for fast deployment.
⭐ High Power Handling
The antenna supports up to:
- 1.0 kW PEP HF operation
- 500 W CW (2.5–30 MHz)
- 200 W CW (1.5–2.5 MHz and VHF)
Brochure CS-D2T (V.11-25) Engli…
Built with high-quality aluminum, MIL-STD-grade components, and an 800-ohm industrial resistor, the CS-D2T is ready for continuous service under heavy load.
⭐ Extreme Weather & MIL-STD Construction
Engineered to operate in harsh conditions:
- Wind resistance up to 200 km/h
- Ice loading up to ½ inch
- Operating temperature –35°C to +80°C
- Salt, humidity, vibration & shock resistance per MIL-STD-810H / MIL-STD-167-1
- Coating and materials per MIL-T-704K
Brochure CS-D2T (V.11-25) Engli…
This makes the antenna ideal for permanent installations, coastal locations, and military environments.
⭐ Key Features
- Wideband operation 1.5–30 MHz (HF)
- Extended reception and reduced gain 30–200 MHz
- Folded-dipole multifunction horizontal array
- Directive HF radiation pattern
- SWR < 2.0 across HF band
- 50-ohm impedance / N-female connector
- Directional gain from –5 dBi to +5 dBi
- 9:1 matching transformer + 800-ohm load
- No tuning required
- Fast installation
- Designed in accordance with strict MIL-STD requirements
The D2T directive wideband hf 1kw antenna is also widely used for fixed HF base stations, government networks, coast guard installations, and emergency communication centers. Because it requires no antenna tuner and keeps a stable SWR across the entire 1.5–30 MHz band, it is extremely efficient for rapid deployment or semi-permanent installations.
Its compact footprint allows installation where conventional HF dipoles cannot be mounted due to limited space or structural constraints. The antenna provides stable performance in all climates, with excellent resistance to corrosion, wind, and salt-spray conditions, making it suitable for desert, tropical, maritime, or cold environments.
The CS-D2T is also appreciated for ALE, HF interoperability testing, and long-distance skywave communication thanks to its controlled directivity and predictable gain over frequency. These characteristics make it one of the best wideband hf 1kw directive HF antennas in its category.
Gain Upgrade Options – Dual & Quad Array Configurations
The CS-D2T wideband hf 1kw antenna can be deployed in multi-antenna array configurations to increase overall system gain while preserving its wide-band performance, low SWR, and military-grade robustness.
These array configurations are optional system solutions and are not included with a single CS-D2T antenna.
D2T-DUAL (2-Antenna Array)
This configuration uses two D2T antennas installed on the same site and fed in phase. It provides a moderate increase in effective radiated power while maintaining wide-band HF coverage.
Typical system gain: +7.5 to +8 dBi (approximately +5.5 dBd)
Typical applications: NVIS links, tactical HF communications, compact fixed installations.
D2T-QUAD (4-Antenna Array)
This configuration combines four D2T antennas installed in a symmetrical array and fed through a corporate feed network. It is intended for fixed HF base stations requiring higher system gain and improved signal-to-noise ratio.
Typical system gain: +10 to +11 dBi (approximately +8.5 dBd)
Typical applications: HF base stations, command posts, long-range regional HF links.
Gain values are indicative and depend on frequency, antenna height, spacing, ground conditions, and installation geometry.
D2T Dual & Quad Array – Installation tower Guide see brochure (PDF)
