S.1H-127-4
Heavy duty 4-stacked dipole array 117 - 137 MHz
Description
- Four Heavy Duty, VHF Center Fed Dipole antennas for VHF Aircraft Band applications, connected with a phasing harness to form a high gain, stacked array.
- Produced to the highest quality standards, these robust antenna designs will insure reliable operation in harsh environmental conditions.
- Former Skymacasts brand product.
Specification
| Electrical | |
| Model | S.1H-127-4 |
|---|---|
| Frequency | 117 – 137 MHz |
| Max. Input Power | 1000 W |
| 3 dB Beamwidth, H-Plane | 180 ° |
| Polarisation | Vertical |
| 3 dB Beamwidth, E-Plane | 20 ° |
| Impedance | 50 Ω |
| Gain | 7.3 dBd (9.4 dBi) |
| VSWR | < 1.5:1 |
| Front-To-Back Ratio | > 5.5 dB |
| Antistatic Protection | All metal parts DC-grounded (Connector shows a DC-short) |
| Mechanical | |
| Elements | 19 x 1.6 mm dia. / 0.75 x 0.06 in. wall aluminium alloy grade 6063T6 |
|---|---|
| Connection(s) | N(f) |
| Boom Material | 48.4 x 4.5 mm dia. / 1.91 x 0.18 in. wall aluminium alloy grade 6082T6 |
| Fasteners | Stainless steel grade A2-70 |
| Length | Approx. 6800 mm / 267.72 in. |
| Element Clamps |
Cast aluminium alloyDiecast Al / Zinc alloy
|
| Historic Brand | Skymasts |
| Wind Load | 795 N (160 km/h) |
| Weight | Approx. 40 kg / 88.18 lb. |
| Balun Encapsulant | Polyurethane Resin U-600 |
Ordering Codes
| Model | Product No. |
|---|---|
| Heavy duty 4-stacked dipole array 117 – 137 MHz | S.1H-127-4 |
Diagrams
RADIATION PATTERNS
E-Plane | 127 MHz
RADIATION PATTERNS
H-Plane | 127 MHz
PROCOM A/S reserves the right to
amend specifications without prior notice
PROCOM A/S • Smedetoften 12
DK 3600 Frederikssund • Denmark
Generated : 2026-06-28
Version 1