Spooltenna Stealth Ultra 40-10M End Fed Half Wave Antennas are a 40-10M end fed half wave antenna in an ultra-compact form that is small enough to fit right into your pocket. Optimized for size and weight without compromising performance, it is ideal for POTA, SOTA, backpacking, and travel.

The Stealth Ultra-EFHW4010 all-black antenna is for hams who want to operate under the radar or who need to operate discreetly in HOA-restricted environments. Stealth appearance, full performance.

Antenna tuner not required.

What’s in the Box:

• SPOOLTENNA ULTRA-EFHW4010

• Field Testing Report for that serial number

• QRP code for Quick Start Guide and Owners' Manual (available for download on the Spooltenna website)

Key Features:

- Center hole - 8mm (approximately 5/16 in.) for quick deployment using a standard screwdriver as an axle (screwdriver not provided)

- Low-profile winding knob for easy set up and tear down

- Thermal venting on back for high-duty cycle operation

- 4mm banana jack for quick connection/disconnection of radiating element

- 8mm mounting holes on face and back side of the product for mounting or hanging flexibility

- Right-angle BNC connector to align with feedline direction

- Matching circuit captive within the barrel of the spool to protect circuit components

- Strain relief on both ends of the radiating element

- Supplied with BongoTies® tie for retaining wire on the spool

- Designed for use with lightweight coax like RG-174 coax with 5 integrated ferrites to choke return RF (available as optional accessory)

Additional Features & Specifications:

• Frequency Range:

7.0 - 7.3 MHz (40M)

14.1 - 14.35 MHz (20M)

21.0 – 21.45 MHz (15M)

28.0 – 29.7 MHz (10M)

• Power: 100W SSB, 50W CW & digital

• Dimensions:

Diameter: 3.0 in. (76mm)

Thickness: ~ 0.98 in. (25mm) (minus the BNC connector and knob protrusions)

• Weight: 5.7oz.

• RF Connection: Right-angle BNC female

• Length: 65ft. insulated 26 AWG high strength, high conductivity Bare Copper Clad Steel (BCCS), UV Resistant Polyethylene jacket

Note: Antenna is factory-tuned, with additional length available for end-user final tuning.