Sigma Eurocomms

SIGMA EURO-COMM DELTA - 80 HP Multi Band Full Wave Loop HF Antenna/ Aerial

This product data sheet is originally written in English.


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Proudly family-run since 1990, Sigma Euro-Comm is a UK-based manufacturer specialising in high-performance CB antennas. With over three decades of hands-on experience, we design, engineer, and build every antenna at our dedicated factory in the heart of Birmingham. Our commitment to quality, precision, and customer satisfaction has earned us a trusted reputation across the industry. At Sigma, we don't just make antennas - we craft reliable communication tools built to perform, built to last. When you choose Sigma, you're not just buying a product. You're investing in British-made quality, decades of expertise, and the kind of personal service only a family business can deliver
Sigma EURO-COMM DELTA - 80 HP Multi Band Full Wave Loop HF Antenna/ Aerial
Trusted Seller
Free UK Delivery - On selected Products
Over 30 Years Experience - est 1990
Description

The Sigma Euro-Comm DELTA- 80 HP

Multi Band Full Wave Loop Antenna Wire Antenna


The DELTA-80HP is a full wave loop designed to operate on 80m (3.5MHz), 40m (7MHz), 20m (14MHz) and 10m (28MHz) without an ATU and other bands with an ATU

There is a 4:1 balun at the feedpoint enabling it to be fed directly with 50ohm coax - RG-213 or Mini 8 is probably the best but other variations of coax may

be used so long as they are of a 50ohm impedance.

The loop comes complete with six insulators to provide anchor points.  It may be mounted flat (horizontal) or raised to a vertical or near vertical postion.

It may be configured as either a square loop (Quad) or equilateral triangle (Delta).

FULL WAVE DELTA LOOP.  Configured as a delta loop or equilateral triangle, if laid flat will be good for near DX.  If vertical, or near vertical

will provide low angle radiation which is good for long range DX in the direction of the loop (looking straight on at the front) and near DX off the sides.  Gain 3.2dBd.

 

FULL WAVE QUAD LOOP If laid horizontally will be good for NVIS, if vertical 2.8dBd gain.  Sloping at 45 degrees will provide low angle DX.


The power rating is for intermittent amateur (400W CW or 500W SSB) use and not for AM broadcast or constant carrier data modes. For AM broadcast a much higher power BALUN is required."


Delta Loop Specifications

Max Power 400W CW, 500W PEP

Forward Gain 3.2 dBd max

SWR 

           3.60 MHz 1.5:1

           7.05 MHz 1.5:1

           21.15 MHz 1.7:1

           28.02 MHz 1.1:1

Dimensions of overall loop 81.12m

Three equal sides 27.04m

Four equal sides 20.28m

Radiating wire Poly flex weave non kink

Feed Point Balun 4:1 HP



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Sigma EURO-COMM DELTA - 80 HP Multi Band Full Wave Loop HF Antenna/ Aerial

The Sigma Euro-Comm DELTA- 80 HP

Multi Band Full Wave Loop Antenna Wire Antenna


The DELTA-80HP is a full wave loop designed to operate on 80m (3.5MHz), 40m (7MHz), 20m (14MHz) and 10m (28MHz) without an ATU and other bands with an ATU

There is a 4:1 balun at the feedpoint enabling it to be fed directly with 50ohm coax - RG-213 or Mini 8 is probably the best but other variations of coax may

be used so long as they are of a 50ohm impedance.

The loop comes complete with six insulators to provide anchor points.  It may be mounted flat (horizontal) or raised to a vertical or near vertical postion.

It may be configured as either a square loop (Quad) or equilateral triangle (Delta).

FULL WAVE DELTA LOOP.  Configured as a delta loop or equilateral triangle, if laid flat will be good for near DX.  If vertical, or near vertical

will provide low angle radiation which is good for long range DX in the direction of the loop (looking straight on at the front) and near DX off the sides.  Gain 3.2dBd.

 

FULL WAVE QUAD LOOP If laid horizontally will be good for NVIS, if vertical 2.8dBd gain.  Sloping at 45 degrees will provide low angle DX.


The power rating is for intermittent amateur (400W CW or 500W SSB) use and not for AM broadcast or constant carrier data modes. For AM broadcast a much higher power BALUN is required."


Delta Loop Specifications

Max Power 400W CW, 500W PEP

Forward Gain 3.2 dBd max

SWR 

           3.60 MHz 1.5:1

           7.05 MHz 1.5:1

           21.15 MHz 1.7:1

           28.02 MHz 1.1:1

Dimensions of overall loop 81.12m

Three equal sides 27.04m

Four equal sides 20.28m

Radiating wire Poly flex weave non kink

Feed Point Balun 4:1 HP



Built By
The Sigma Euro-Comm DELTA- 80 HP Multi Band Full Wave Loop Antenna Wire Antenna The DELTA-80HP is a full wave loop designed to operate on 80m (3.5MHz), 40m (7MHz), 20m (14MHz) and 10m (28MHz) without an ATU and other bands with an ATUThere is a 4:1 balun at the feedpoint enabling it to be fed directly with 50ohm coax - RG-213 or Mini 8 is probably the best but other variations of coax maybe used so long as they are of a 50ohm impedance. The loop comes complete with six insulators to provide anchor points.  It may be mounted flat (horizontal) or raised to a vertical or near vertical postion.It may be configured as either a square loop (Quad) or equilateral triangle (Delta). FULL WAVE DELTA LOOP.  Configured as a delta loop or equilateral triangle, if laid flat will be good for near DX.  If