23cm Rear Mount Antenna 18elements 23cm18DXR 1290 – 1310MHz
Excellent wideband 23cm Rear Mount Antenna 18elements 23cm18DXR. Good for portable or stationary use. It is good for any mount on the metal pipe or on the side of the tower. The antenna is tested before dispatch and comes fully assembled. Just take it out of the box. Ready in a minute.
23cm Rear Mount Antenna 18elements 23cm18DXR Appearance:

What does 23cm18DXR mean?
- 23cm – Frequency range from 1290 to 1310 MHz with low SWR
- 18 – 18 Elements
- DX– For use in the DX part of the band
- R – Rear mount
The antenna could be produced in three versions:
- SKU: 1850 23cm18DXR 1290-1310 MHz (this antenna)
- SKU: 1866 23cm18WR 1240-1310 MHz. Wideband version
- SKU: 1865 23cm18WRV 1240-1310 MHz. Vertical polarization wideband
Electrical Specifications of 23cm Rear Mount Antenna 18elements 23cm18DXR
Frequency Range: 1290 – 1310 MHz (by order 1240 – 1310 MHz)
Free Space Forward Gain: 17.3 dBi
Front-to-Back Ratio: 29 dB
-3 dB Horizontal Beam-width: 24.4°
Polarization: Horizontal (Vertical by order)
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: < 1.2
Maximum Power Input: 100 W (more by request)
Matching Method: Voltage balun. Voltage Balun RG-316 Teflon Cable
Connector: “N”
23cm18DXR Measured SWR at antenna connector
Mechanical Specifications of 23cm Rear Mount Antenna 18elements 23cm18DXR
Number of Elements: 18
Element Diameter: 4 mm Aluminum rod
Dipole Diameter: 3 mm Copper
Longest Element: 120 mm
Element Mounting Position: Below the boom
Balun and Connectors: Included
Boom Length: 1.46 m
Boom Size: 20×20 mm
The number of Boom Pieces: 1
Mounting Mast Diameter: 43 – 70 mm 1-11/16″ – 2-3/4″ OD
Bracket: Goliath – Stainless Steel AISI 316L (A4), 2 x M8 Stainless Steel
Survival Wind Speed: 150 km/h
Net Weight: 1.1 kg
Gross Weight: 2.9 kg
Transportation Length: 1.5m
The old name of the antenna was PA1296-18-1.5RB
Video about assembling: https://youtu.be/SmIm5lYmlZo?feature=shared
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 a perfect SWR on the intended frequency range. Everything is pre-tuned.
- Easy to set up.
Everything is labeled, just put a number to a 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.
Check the other 23cm antennas: 23cm antennas

Rick –
Thanks for the great antenna
73 Rick W7RNB
Jüri –
Hi
Our ODX in ES7A for 23cm18DXR is 587 km with SM7LCB
Used 6 meters of 50 mm aluminium pipe rotated manually
Rig IC-910h 5 W. IIRC, there was a decent tropo and a plane passing, which helped a lot.
https://www.erau.ee/images/Voistlustulemused/ULL_FD/2021/ULL%20VP-2021%2023cm%20koondlogi.pdf
Jüri ES5JR