Sirio CX-4-68 - 4M Vertical Antenna (68-73 MHZ)
Quality 3/4 wave coaxial J-pole type 4 Metre, Amateur Band, base antenna, designed to work between 68 and 73 Mhz
In stock
- SKU
- 56-710
£59.99
Description / Sirio CX-4-68 - 4M Vertical Antenna (68-73 MHZ)
The Sirio CX-4-68 is a 4M base antenna, this one is designed to work between 68 and 73MHz.
Key Features:
- Base station antenna, Mono-band
- Low-gain, Omnidirectional
- Protection from static discharges DC-Ground
- Made of aluminium alloy 6063 T-832
Electronic Data:
- Type: 3/4λ coaxial J-pole
- Frequency range: tunable 68...73 MHz
- Impedance: 50Ω
- Radiation (H-plane): 360° omnidirectional
- Radiation (E-plane): beamwidth @ -3 dB = 60°
- Radiation angle: 3°
- Polarization: linear vertical
- Gain: 2dBd - 4.15 dBi
- Bandwidth @ SWR: ≤1.5 ≥ 1.7 MHz @ 68 MHz
- SWR. @ res. freq.: ≤ 1.2
- Max. Power (CW) @ 30°C: 500 Watts
- Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
- Connector: UHF-female
Mechanical Data:
- Materials: Aluminium, Brass, Stainless Steel, Nylon
- Wind load / resistance: 97 N @ 150 Km/h / 150 Km/h
- Wind surface: 0.08 m²
- Height (approx.): from 2700 to 3360 mm
- Weight (approx.): 1900 gr
- Mounting mast: Ø 35-42 mm
More Information
| Allow Backorder in Clerk.io | No |
|---|---|
| Product Condition | New |
| Bar Code/EAN | 8056182112262 |
| Manufacturer | Sirio |
| Frequency Band | Amateur Bands |
| Frequency MHz | 70 MHz (4m) |
| Antenna Connection | SO239 |
| Item returned for technician testing period | 14 days |
| Repair period | 90 days |
| Refund period | 14 days |
| Exchange period | 14 days |
Product Attachments
Customer Reviews
Price
5
Quality
5
Value
5
SIRIO CX-4-68 - 4M BASE ANTENNA (68-73MHZ)
Review by
GREGGLES
does what says on tin good ant
Price
5
Quality
4
Value
4
Sirio 4 meter antenna
Review by
Fredboy
Hi there these antennas work really well, I think they have 1 o2 db gain over a dipole, the biggest problem with them is water ingress, you have to really go overboard with waterproofing them, you will need a lot of self amalgamating tape and some liquid glue, araldite and plastic tale...there are few U tube clips on it but one by Ray G4 something in Sussex...good luck and keep the water out...there is a good article from a PE station on it, worth looking at...from Fred g4vvq
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