DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C Two Connectors

DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C with maximum power input 1500W on 2m with 9 active elements and 850W on 70cm with 16 active elements. Lightweight construction with a very handy boom length of about 4.4 meters. Does not need guy rope support for stationary use. Because of its quality construction with easy assembly, this antenna is suitable for portable use and two-band contesting. Two or four antennas in the stack are very efficient for competition and EME communications. Easy Moon Bounce is waiting for you.

 

DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C Appearance:

 

The antenna could be produced in two versions:

• SKU: 1310: 2m70cm25DXA-2C (This antenna)
  SKU: 1311: 2m70cm25DXAG-2C with Guy rope support for extra safety (+15 EUR)
  

 

What does 2m70cm25DXA-2C mean?

• 2m – 2m band with low SWR and excellent gain
• 70cm – 70cm band with low SWR and excellent gain
• 25 – 25 elements. 9 Elements on 2m and 16 elements on 70cm
• DX – Covers 144-145 and 432-434MHz
• A – Boom or element parts are shorter than 1.2m (Airplane checked baggage length)
• 2C  – 2Connectors for each band

 

EME with just 100W will be enough to start working with a lot of amateurs around the world on both bands.

 

2m Electrical Specifications of DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C

Electrical Specifications 2 meter

Frequency Range: 144 – 145 MHz
Free Space Forward Gain: 13.9 dBi
Front-to-Back Ratio: 27 dB
3 dB Horizontal Beamwidth: 38.8°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 1500W
Matching Method: Direct feed through common mode choke (current balun)
Connector: “N”
Coupling to 70 cm: -40 dB

 

DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C Azimuth Radiation Pattern

2m top-notch Azimuth Radiation Pattern achieved with careful design and optimization.

 

70cm Electrical Specifications of DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C

Frequency Range: 432 – 434 MHz
Free Space Forward Gain: 16.4 dBi
Front-to-Back Ratio: 28 dB
3 dB Horizontal Beamwidth: 26.9°
Polarization: Horizontal
Nominal Input Impedance: 50 Ohms
Maximum Power Input: 850 W
Matching Method: Direct feedthrough common mode balun
Connector: “N”
Coupling to 2-meter: -30 dB

 

2m70cm25DXA-2C Antenna 70cm Azimuth Radiation Pattern

 

Strong Stainless Steel “RA” bracket and boom joiner on 2m70cm25DXA-2C (old name PA144-432-25-4.5-2CAP)

“RA” Bracket, Boom Join, and Label View.

Sturdy construction and high durability, built without compromise.

 

Mechanical Specifications of DualBand 2m 70cm Light Weight Antenna 2m70cm25DXA-2C

2m Number of Elements: 9
70cm Number of Elements: 16
2m Elements Diameter: 8 mm Aluminum tube
70cm Elements Diameter: 4 mm rod
Dipoles Diameter: 8 mm Hard Copper tube, plastic coated
2m Element Mounting Position: Below the Boom
70cm Element Mounting Position: Above the Boom
Balun and Connectors: Included
Boom Length: 4.38m
Boom Size: Tapered Boom 20×20, 30×30, 20x20mm
Number of Boom Pieces: 4
Guy rope support: Not necessary. (or by order)
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Bracket “RA”, M8 screws Stainless Steel
Survival Wind Speed: 150km/h
Net Weight: 4.6kg
Gross Weight: 6.2kg
Transportation Length: 1.2m

The old name of the antenna was PA144-432-25-4.5-2CAP

The manual for PA144-432-25-4.5-2CAP is here

 

The antenna has been calculated using state-of-the-art full 3D Electromagnetic Simulation Software including the influence of the boom, bracket, baluns, and connectors. The performance of the antenna designed using these techniques is exceptional, far better than any antennas designed using “wire” programs like EZNEC Pro/4 – NEC v5.0, 4NEC2, MMANA, or AO.

 

Antennas-Amplifiers Product Benefits. A Major advance in antenna design.

• F/B and G/T superiority.

All antennas have been calculated using state-of-the-art full 3D EM modeling software including the influence of the boom, bracket, baluns, and connectors. The performance of antennas designed using these techniques is exceptional, far better than antennas designed using the EZNEC program.

• No tuning antennas.

Before dispatch, we assemble and test each antenna’s characteristics. No need to tune any element to get perfect SWR on the intended frequency range. Everything is pre-tuned.

• Easy to set up.

Everything is labeled, just put number to number. Everything is included in the box: Antenna, balun, bracket, and guy rope support if needed. Yours is to assemble and have fun!

• Mechanical properties.

We believe that our antennas are the world’s strongest and are mechanically constructed much better than any antennas from other manufacturers.

 

All 2m / 70cm antennas: 2m/70cm antennas
2m / 70cm Common Connector antenna
2m / 70cm Two Connector Dual Band