STP Antennas
Antennas are colour-coded to indicate frequency band.
Nominal gain figures shown in the table are measured in free space at resonance. These figures will degrade when used close to the body.
General characteristics
Nominal impedance: 50Ω
VSWR at resonance ≤1.5:1
Connector type: SMA male
Operational temperature range: -20ºC to +55ºC (useable range -30ºC to +75ºC)
| Frequency | Colour code | Centre frequency | Quarter wave whip >0dBi | Extended helical >-1dBi |
|---|---|---|---|---|
| 300-344MHz | Brown | 322MHz | 300-00708 | 300-00707 |
| 344-372MHz | Red | 360MHz | 300-00652 | |
| 380-430MHz | Green | 405MHz | 300-00418 | 300-00417 |
| 380-400MHz | Blue | 390MHz | 300-00661 | |
| 407-473MHz | Yellow | 440MHz | 300-00499 | |
| 410-430MHz | White | 420MHz | 300-01031 | 300-00662 |
| 450-470MHz | Black | 460MHz | 300-01032 | 300-00663 |
| 806-870Mhz | Orange | 838MHz | 300-00498 |
