DatasheetJTRS Antenna Spring Mount
30 to 512 MHz
SKU: 20-50-12VMF27
The 20-50-12VM is a high performance wide band multi-element antenna intended for use with the Joint Tactical Radio System (JTRS) and similar radio systems operating within the frequency band 30 - 512 MHz.
The antenna comprises a wide band monopole on a CECOM mounting plate with proprietary matching circuits that cover VHF and UHF frequency band. Decoupling techniques are employed to optimize radiation patterns throughout the entire frequency band.
Construction comprises a base element with detachable top VHF element having all matching circuits foamed-in-place to provide maximum strength and reliability.
- Very wide frequency coverage
- No tuning required
- Rugged construction for mobile applications
- Low silhouette less than 75 inches height
- Meets MIL-STD-810 environment
- 100 Watts power handling
- Detachable top element for transport and stowage
- Spring mounted element
| 20-50-12VMF27 | |
| Model # | 20-50-12VM |
| Brand | Cooper Antennas |
| Frequency | 30 to 512 MHz |
|
Gain (typical at beam maximum) |
30 MHz -3 dBi 88 MHz -1 dBi 108 – 174 MHz 0 dBi average 225 – 512 MHz 0 dBi average |
| VSWR |
30 - 88 MHz 3.0:1 max 118 - 174 MHz 2.5:1 max 225 - 450 MHz 2.5:1 max 451 – 512 MHz 3.0:1 max. |
| Impedance (nominal) | 50 Ohms |
| Power | 100 Watts CW |
| Polarization | Vertical |
| Antenna RF Connector | N Female |
| Height | 74.2 inches(1885mm) |
| Fixings | 5.5 inches (140mm) 4 hole on 4.5 inch (114mm) circle to CECOM pattern |
| Weight (approx.) | 8.5 lbs (3.86Kg) max |
| Operational Temperature | -40°C to +71°C |
Finish
- Antenna - Urethane Grey - NSN 5985-99-990-9095
- Other finish options are available.
- Please specify finish required when ordering.
