Mantis Series
Our Biggest Bad Boy 40 Meter Antennas!
CUBEX 40TH ANNIVERSARY QUADS!
The Mantis-series cubical quads achieve exceptional performance on the 30-meter and 40-meter bands. These distinctive antennas are the result of decades of quad design and manufacturing experience, celebrating 40 years of innovation in 1997.
The biggest and baddest quad in our catalog, this antenna requires a lot of space, a serious support structure and a high-torque rotator.
Don’t underestimate the scope of this type of project, however we make it as easy as possible with our complete kit of high-quality materials.
Go with “the choice of DX Kings”… go with Cubex Quads!
Due to size limitations, ALL Mantis Quads ship via Ground Freight

See shipping information and cost savings solutions here.
MANTIS II-40M
- 2-Element/40-Meter Mono-Band Quad
- 3″OD x 24′ Boom (2-piece)
- Double Cast CQS3.0 Hubs for Superior Arm Support
- Rugged 25′ Reinforced Fiberglass Spreader Arms
- Durable Type1 PVC Terminals
- Lateral High Wind Kit Included
$2780
Add 30 Meters – $165
SPECIFICATIONS
- Gain: 6dbi
- F-B Ratio: 15db
- Beam Width (hpp): 60deg
- Weight: 135 pounds
- Turn Radius: 21.9′
- Wind Load: 16sq/ft
75-ohm Matching Cable available
MANTIS II-40ML
- 2-Element/40-Meter Mono-Band Quad
- 3″OD x 30′ Boom (3-piece)
- Double Cast CQS3.0 Hubs for Superior Arm Support
- Rugged 25′ Reinforced Fiberglass Spreader Arms
- Durable Type1 PVS Terminals
- Lateral High Wind Kit Included
SPECIFICATIONS
- Gain: 7.5dbi
- F-B Ratio: 20db
- Beam Width (hpp): 55deg
- Weight: 142 pounds
- Turn Radius: 23.8′
- Wind Load: 17sq/ft
75-ohm Matching Cable available
Add 30 Meters – $165
$2995
MANTIS II-40M + 4L3B
- 2-Element/40-Meter Multi-Band Quad
- 3″OD x 24′ boom (2-piece)
- Double CQS 3.0 Cast Hubs for Superior Strength
- 26′ Heavy-Duty Fiberglass Spreader Arms
- Lateral High Wind Kit Included
PLUS – 4-elements on 10/15/20 meters
- Combines the features of the MkIV 3-Band Quad
$3800
Add 30 Meters – $165
SPECIFICATIONS
- Gain: 10m-20m 11-13dbi / 40m 7.5dbi
- F-B Ratio: 18-30db
- Beam Width (hpp): 55deg
- Weight: 160 pounds (163 pounds with 30m)
- Turn Radius: 21.9′
- Wind Load: 21sq/ft
75-ohm Matching Cables available on Parts and Accessories Page
MANTIS II-40M + 4L5B
- 2-Element/40-Meter Multi-Band Quad
- 3″OD x 24′ boom (2-piece)
- Double CQS3.0 Hubs for Superior Strength
- 26′ Heavy-Duty Fiberglass spreader arms
- Lateral High Wind Kit Included
PLUS – 4-elements on 10/12/15/17/20 meters
- Combines the features of the MkIV 5-Band Quad
$4090
Add 30 Meter Elements for – $165
SPECIFICATIONS
- Gain: 10m-20m 11-13dbi / 40m 7.5dbi
- F-B Ratio: 18-30db
- Beam Width: (hpp) 55deg
- Weight: 165 pounds (168 pounds with 30m)
- Turn Radius: 21.9′
- Wind Load: 23sq/ft
75-ohm Matching Cables available on Parts and Accessories Page
MANTIS CHARACTERISTICS
Model | Gain | F/B | Boom Length | Turning Radius | Weight | Wind Load |
---|---|---|---|---|---|---|
MANTIS II-40M | 6 dBi | 15dB | 24 ft | 21.9 ft | 135 lbs | 16.0 sq/ft |
MANTIS II-40ML | 7.5 dBi | 20dB | 30 ft | 23.8 ft | 142 lbs | 17.0 sq/ft |
MANTIS II-40M +4L3B 4 Total Bands | 7+ dBi on 40M 11-13dbi on 10-20M | 18-30dB | 24 ft | 21.9 ft | 160 lbs | 21.0 sq/ft |
MANTIS II-40 +4L5B 6 Total Bands | 7+ dBi on 40M 11-13dbi on 10-20M | 18-30dB | 24 ft | 21.9 ft | 165 lbs | 23.0 sq/ft |