The Sirio Twin Log is a twin wire, logarithmic loaded mobile aerial for the CB 27MHz band, supplied complete with a 3/8 mag mount and RG 58 cable so it is ready to fit to a vehicle. Radiation is omnidirectional with linear vertical polarisation, and each model is tunable across its own frequency range. It suits CB operators who want a mobile aerial that handles high power and can be moved between vehicles.
| Specification | Value |
|---|---|
| Product condition | New |
| Design | Twin wire, logarithmic loaded |
| Radiation | Omnidirectional |
| Polarization | Linear vertical |
| Frequency range | TWIN-LOG 3: 26.6 to 27.9 MHz tunable; TWIN-LOG 4: 26.65 to 27.75 MHz tunable; TWIN-LOG 5: 26.7 to 27.7 MHz tunable |
| Systems | CB 27MHz |
| Bandwidth | TWIN-LOG 3: ≥ 600KHz @ SWR ≤ 2; TWIN-LOG 4: ≥ 1.1MHz @ SWR ≤ 2; TWIN-LOG 5: ≥ 1.5MHz @ SWR ≤ 2 |
| Max power | TWIN-LOG 3: 300 Watts (CW) continuous, 900 Watts (CW) short time; TWIN-LOG 4: 500 Watts (CW) continuous, 1500 Watts (CW) short time; TWIN-LOG 5: 1000 Watts (CW) continuous, 3000 Watts (CW) short time |
| Connector | 3/8” Thread |
| Materials | Copper, Chromed brass, Stainless steel, Fiberglass |
| Height (approx) | TWIN-LOG 3: 945 mm / 3.1 ft; TWIN-LOG 4: 1250 mm / 4.1 ft; TWIN-LOG 5: 1475 mm / 4.84 ft |
| Weight (approx) | TWIN-LOG 3: 300 gr / 0.66 lb; TWIN-LOG 4: 350 gr / 0.77 lb; TWIN-LOG 5: 390 gr / 0.86 lb |
| Mounting type | 3/8” Thread |
- Adaptor: CB-HDS 3/8-24 female / UHF-female (SO-239) (P/N:2508106.00)
- Supplied with a mag mount 3/8 with cable RG 58
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