R&S®HD420 Antenne
Mobile TFD Broadband Antennas
Dieses Produkt ist abgekündigt
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Kerndaten
- 1.5 MHz to 30 MHz
- Sky wave transmission over short, medium and global distances
- Recommended extras
Features
- Coverage of any distance
- Omnidirectional coverage through high-angle radiation (NVIS)
- Broadband operation
Technische Daten
| Frequency range |
1.5 MHz to 30 MHz |
| Polarization |
linear/horizontal |
Kerndaten
-
1.5 MHz to 30 MHz
-
Sky wave transmission over short, medium and global distances
The Mobile TFD (terminated folded dipole) Broadband Antenna R&S®HD420 operates as a loop antenna on which travelling waves are generated by means of a termination. A tuning unit is not required to attain the specified VSWR.
Signals are fed in via a transformer at the highest point in the middle of the antenna. Corresponding to its geometry, the TFD antenna radiates horizontally polarized waves and is thus suitable for the transmission of sky waves over any distance.
Since the antenna is configured as an inverted V, only one antenna support is needed. Where space is limited, the length of the antenna can be considerably reduced through the use of two lateral 4 m masts.
Recommended extras
- Tiltable Mast, 10 m, R&S®KM420A1
- Tiltable Mast, 4 m, R&S®KM420A2
Merkmale
- Coverage of any distance
- Omnidirectional coverage through high-angle radiation (NVIS)
- Broadband operation
- No tuning unit required
- Quick assembly/disassembly (approx. 30 min)
- Suitable for stationary use
- Extremely favorable price
Technische Daten
| R&S®HD420 |
| |
| Frequency range |
1.5 MHz to 30 MHz |
| Polarization |
linear/horizontal |
| Input impedance |
50 Ω |
| VSWR |
<= 3 |
| Max. input power |
400 W |
| Connector |
N female |
| MTBF |
>100 000 h |
| Operating temperature range |
–40 °C to +55 °C |
| Mechanical interface |
for R&S®KM420A1 and 10 m tower from Geroh |
| Max. wind speed |
180 km/h (without ice deposit), with
R&S®KM420A1 and 2 × R&S®KM420A2 |
| Dimensions |
| Length |
approx. 30 m (with 2 × R&S®KM420A2)
approx. 90 m |
| Recommended height of feed point |
approx. 10 m |
| Weight |
approx. 13 kg |
