Typical VSWR curve
HX 4/…-MTS2000
Helical Antenna for Portable Equipment in the 4 m Band
Description
- Flexible, conical steel helix moulded in thermoplastic rubber.
- Significant reduction of length due to the helical principle.
- Optimum performance compared to physical dimensions.
- Delivered factory tuned and tested to ensure minimum VSWR.
- Provided with connector for Motorola MTS2000 series (GP900/GP1200/MTS2000).
Specification
| Electrical | |
| Model | HX 4/…-MTS2000 |
|---|---|
| Frequency | Models within 66 – 88 MHz |
| Antenna Type | Shortened ¼ λ antenna for portable equipment |
| Max. Input Power | 50 W |
| Polarisation | Vertical |
| Impedance | 50 Ω |
| VSWR | < 2.0:1 when mounted directly on portable equipment |
| Bandwidth | ≥ 6 MHz at fc @ VSWR ≤ 3.0:1 |
| Mechanical | |
| Connection(s) | SMA modified for Motorola MTS2000 |
|---|---|
| Materials | Steel helix moulded in thermoplastic rubber Black-chromed brass |
| Colour | Black |
| Historic Brand | Amphenol Procom |
| Height | Approx. 260 mm / 10.24 in. |
| Weight | 0.08 kg / 0.18 lb. |
Ordering Codes
| Model | Product No. | Frequency |
|---|---|---|
|
HX 4/l-MTS2000 |
140000257 | 66 – 76 MHz |
|
HX 4/BOS-MTS2000 |
140000256 | Tx : 74 – 77 MHz / Rx : 84 – 87 MHz |
|
HX 4/m-MTS2000 |
140000301 | 72 – 82 MHz |
|
HX 4/h-MTS2000 |
140000355 | 78 – 88 MHz |
Additional Information
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-26
Version 1