SIGMA DELTA 40- HP-QRO 1kW Multi Band Full Wave Loop HF Antenna/ Aerial
With over three decades of hands-on experience, we design, engineer, and build every antenna at our dedicated factory in the heart of Birmingham. At Sigma, we don't just make antennas - we craft reliable communication tools built to perform, built to last. You're investing in British-made quality, decades of expertise, and the kind of personal service only a family business can deliver.
Sigma DELTA - 40- HP-QRO 1kW Multi Band Full Wave Loop HF Antenna/ Aerial. Over 30 Years Experience - est 1990. Multi Band Full Wave Loop Antenna Wire Antenna. The DELTA-40HP 1kW is a full wave loop designed to operate on 40m (7MHz), 15m (21MHz) and 10m (28MHz) without an ATU and other bands with an ATU. There is a 4:1 balun at the feed point 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 three insulators to provide anchor points. It may be mounted flat (horizontal) or raised to a vertical or near vertical position.
It may be configured as either a square loop (Quad) or equilateral triangle (Delta). 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. 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.
If you are using a high-power amplifier it is essential that an external ATU is used between the antenna and the amplifier, otherwise damage may occur. Max Power 1000 Watts CW, 1000 Watts PEP.
Forward Gain 3.2 dBd max. 7.05 MHz 1.5:1.21.15 MHz 1.7:1. 28.02 MHz 1.1:1. Dimensions of overall loop 40.56m.
Three equal sides 13.52m. Four equal sides 10.14m. Radiating wire Poly flex weave non kink.
Feed Point Balun 4:1 HP. EU Customers: We are a UK-based company. From July 1st 2021, the EU introduced new VAT rules for the import of goods from outside the EU.
Please also note that if your antenna is over 150 Euros you will also face a small courier administration charge. Please note that when purchasing items from the UK there will be import charges on the item.
Full address details can be added here too. Australian Caravans & RV's. Business name: Sigma Euro-Comm Ltd Member since: 19 Nov, 2010 Based In United Kingdom.
The Sigma Euro-Comm DELTA- 40-HP-QRO 1kWMulti Band Full Wave Loop Antenna Wire Antenna The DELTA-40HP 1kW is a full wave loop designed to operate on 40m (7MHz), 15m (21MHz) and 10m (28MHz) without an ATU and other bands with an ATU. There is a 4:1 balun at the feed point 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. SIGMA DELTA - 80 HP-QRO 1kW Multi Band Full Wave Loop HF Antenna/ Aerial. SIGMA EURO-COMM DELTA - 80 HP Multi Band Full Wave Loop HF Antenna/ Aerial. SIGMA EURO-COMM DELTA - 40 HP Multi Band Full Wave Loop HF Antenna/ Aerial.
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