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The ideal all-band antenna that gives DX performance on the low frequency bands. Optimum coax feeder length is 21.3m (70ft) or 50m (166ft) (if using an internal ATU). Can also be used as an inverted V or a sloper. Gain as high as 10dBd is achieved on some bands. 160m and 80m DX operators have reported excellent results. The offset feeder often avoids the coax having to drop down in the centre of the garden. If using as an inverted V, it is best to support the antenna at the centre, leaving the vertical radiator in the clear.
The size of this antenna makes it ideal for many gardens and its DX potential will ad at least an S-point to your signal on most occasions. The secret is in the vertical section which offers excellent low angle radiation. But short-haul contacts will be boosted. As the antenna covers all bands it can be used as the main system and it works equally well as inverted V or sloper. The offset feed system makes the domestic installation that much more convenient.
The CW-80LP Carolina Windom (LP) designation relates to Low Profile characteristic rather than low power and has been designed with smaller compoents that its main counterpart.
Covering six bands, yet only requiring 20.1m (66ft) of space, this antenna is one of our most popular models. The vertical section offers excellent low angle radiation and offers some useful DX opportunities for a remarkably low outlay. If you use an internal ATU, it is recommended you feed the antenna with 86ft of coax. If you have been using something like a G5RV you will be really impressed with the improvement, particularly on 10m and 15m bands. And remember, these are the bands that are likely to offers the best DX as we progress into the new
The CW-40LP Carolina Windom (LP) designation relates to Low Profile characteristic rather than low power and has been designed with smaller compoents that its main counterpart.
With the Carolina Windom 20 the size comes down to a very easily accommodated 10.36m (34ft) and yet you get 5-band coverage. It has an ideal radiation pattern and an unusually low angle of radiation, making a true backyard DX antenna. The absence of traps and the 1.5kW power rating means you have no chance of damaging the antenna, even with big linears. On all bands above 20m it will leave the G5RV standing! Most internal ATUs will have no trouble in matching this antenna.
* Length: 10.36m (34ft) * Feeder: 50 Ohms * Matching: Balun/Line isolator * Transmatch: Required * SWR: Low
* Power: 1.5kW * V Radiator: 3m (10ft) * Install: >7.6m (25ft) above ground
With the new Carolina Windom 620 the size comes down to a very easily accommodated 10.36m (34ft) and yet you get excellent 3-band coverage on 20, 15 & 10m and a compromised coverage on 17, 12 & 6m. It has an ideal radiation pattern and an unusually low angle of radiation, making a true backyard DX antenna. The absence of traps and the 1.5kW power rating means you have no chance of damaging the antenna, even with big linears. On all bands above 20m it will leave the G5RV standing! Most internal ATUs will have no trouble in matching this antenna.
The 160m amateur radio band is enjoying a resurgence of activity and the DX opportunities are better than ever before. But until now, installing an efficient dipole meant having a lot of garden space. The Carolina Windom 160 Special halves the the space needed and at the same time offers a superb all-band radiating system. The secret is in the Dedicated matching Unit (DMU) which efficiently transfers power to the 160m quarter wave radiator. The vertical section helps with both local and DX contacts. For correct operation you will also need an external ATU as most in-built transceiver models will not have the required capacity.
Surely the answer to many hams antenna problem, a design that fits into the average garden yet covers all the popular HF bands. Because the radiator is only a quarter wave on 80m, your signal will be about 4dB down on this band (less than 1 S-point), but as signals are generally strong on this band, the difference is more than acceptable in order to fit the antenna in to the limited space. On the other bands, 40m - 10m, you will enjoy full Carolina Windom performance. Also note that with this model you will need an external ATU as internal transceiver ATUs generally will not have the adjustment capacity.
The Carolina Beam 80 is part Carolina Windom and part Bobtail Curtain (sometimes called a 'half square'). It takes advantage of the best characteristics of both antennas. The Carolina Beam has three vertical radiators directly interconnected by the single horizontal radiator. It is this unique integration of horizontal and vertical radiation components that accounts for the outstanding performance of this antenna system. Another great advantage is its short length, only 30.4m (100ft) long.
The Carolina Beam 40 has three vertical radiators properly spaced out to produce low-angle, beam like performance. The horizontal portion of the antenna interconnects the three vertical sections and acts as both a feed system and a radiating counterpoise. The result is a multi-element inverted-vertical antenna that operates high in the air, free of ground losses. It is a very efficient antenna. The overal length of the Carolina Beam 40 is only 15.25m (50ft.) easily placed in most small gardens.
The Carolina Beam 160 Special has been slightly modified so that it will work on 160m. The dimensions are the same as the Carolina Beam 80 but there are slight differences in the DMU and the Line Isolator to cope with the demands of operating the Carolina Beam on 160m. The RF current handled by these components is enormous. This is why you must keep the output power below 500W (SSB or CW duty cycle) on 160m. On the other bands the full power specification applies. It's an exceptional performer on 80-10m. On 160m, the Carolina Beam is a small antenna, far less than the usual 80m (265ft) required for 160m operation, but even so compared to other shortened antennas it should be able to hold its own. A wide range manual transmatch is a must with this antenna.
The Carolina Beam 80 Special permits 80m operation in only (50 or 66ft) of space. This is a great way to get on to 80m when space is limited. Performance on 80m will be down from a full-sized Carolina Beam 80, but this has not proved a problem. On the other bands, 40 to 10m full performance is provided. A new DMU has been designed to handle the enormous RF current demands when operating on 80m, and the Line Isolator has been also modified.
A wide range manual transmatch is a must with this antenna.
The SuperLoop 80 is a high performance, full size, full wave, 80m loop antenna. On 40m it is a 2x wave length open loop or Bi-Square. The stub in the top leg of the antenna opens the loop when operating on 40m and selected other bands. This improves the antenna’s radiation pattern. Its gain is around 4dB, but it will seem a lot higher due to its excellent, low angle, radiation pattern. The overall length of the SuperLoop 80 is 34m (112ft) with the HD ladder line switching stup 9m (30ft). The 50 Ohm coax from the dedicated matching unit to transmatch is not critical but recommended to be 1/2 wave length. Coax not supplied with antenna.
The SuperLoop 40 uses the same outstanding technology as the SuperLoop 80. This is a high performance, full size, full wave, 40m loop antenna. On 20m it is a 2x wave length open loop or Bi-Square. The stub in the top leg of the antenna opens the loop when operating on 20m and selected other bands. This improves the antenna’s radiation pattern. In theory its gain is about 2dB on 40m and around 4dB on 20m, but it is actually much higher due to the highly compressed low angle radiation pattern. The dedicated matching unit, along with all the other components in the antenna work together to provide a well-managed SWR on all bands.
Coax not supplied with antenn
The BigSig-6 is a singleband loop antenna that offers the same spectacular level of performance available only from high performance loops. The BigSig-6 is a 3/2 wavelength loop, yet it is only 9.1m (30ft) in circumference or just 3.9m (13ft) across the top when configured as a Delta-loop. The major lobes are broadside to the loop which means that it transmits best in directions straight through the loop. Radiation is minimal off the ends of the loop.
The BigSig-6 is almost fully assembled apart from two connections which must be soldered
The original G5RV is an efficient, all band antenna. It is shorter than a full size 80m antenna. This makes it appealing to those who have limited space, and is particularly popular in the UK. The Radio Works G5RV-Plus embraces two outstanding improvements over other versions of this antenna. First, is the Y1-5K precision current-type balun for the transition between the balanced stub and unbalanced coaxial cable feedline. Secondly, is the choice and length of the matching stub and RG-8X feedline combination.The Y1-5K current balun keeps RF off the coax and reduces any chance of RF feedback problems.
Unless you are using a rig with a final output that can tolerate a moderately high SWR, a transmatch is necessary, although the G5RV does not require a balanced output transmatch. This means that you can use the G5RV-Plus with nearly any transmatch, including automatic tuning units found on some rigs.
Combining these technical improvements with the G5RV's own attributes produces a very good antenna system.
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