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Reviews Categories | Antennas: HF: Vertical, Wire, Loop | DX Engineering DXE-8040VA-1 80/40 Meter THUNDERBOLT Vertical Ant Help

Reviews Summary for DX Engineering DXE-8040VA-1 80/40 Meter THUNDERBOLT Vertical Ant
DX Engineering DXE-8040VA-1 80/40 Meter THUNDERBOLT Vertical Ant Reviews: 12 Average rating: 5.0/5 MSRP: $799.00 INTRODUCTORY!
Description: A high-performance vertical antenna specifically for the 75/80 meter and 40 meter bands! The DX Engineering 55-foot Dual Band Vertical Antenna supplies performance which is virtually indistinguishable from their mono-band vertical antennas—perfect for areas where there is no room for individual verticals plus uses the same radial system for both bands. Achieve the strongest possible presence at your power level and be competitive!

Covers the whole 40 meter band with one setting!

80/75 meter band is tunable down to 3650 kHz center frequency with 300 kHz bandwidth. This means that operation on the CW DX frequencies and DX Phone frequencies is within range of most radio internal tuners - no antenna changes are necessary to switch frequencies!

Optional CW Optimizer DXE-7580-THK Capacity Hat Kit allows adjustment down to 3400 kHz center frequency for dedicated CW ops and military/MARS ops.
Product is in production.
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K6AAX Rating: 5/5 Apr 16, 2010 14:56 Send this review to a friend
Very Favorable  Time owned: 3 to 6 months
I purchased this Thunderbolt back in the fall, and I have had a chance to make some long range TRANSMIT ONLY comparisons between this antenna, the Cushcraft MA 80/40 vertical and the RadioWavz 246ft 160/80/40 OCF dipole from my QTH. It surely could vary at your location. My comparisons were on 80 and 40 meters only. I have over 40 1/8th and 1/4 wave radials under both the Thunderbolt and the Cushcraft MA 80/40V, plus chicken wire on top of the radials. The OCF dipole is at 50ft. I use a K9AY loop for receive on these bands.

Within 1,000 miles on 80 meters...the Thunderbolt edges out the OCF dipole 95% of the time and crushes the Cushcraft 100% of the time. Over 1,000 miles the Thunderbolt consistently beats the Cushcraft MA 80/40 V by 1 to 2 S units and the OCF dipole by 2 to 2.5 S units. These tests were done on 80 meters 6 times. 2 tests were with the UK from California on phone at their sunrise this past winter, and 4 tests were done with South Africa on 80 meter phone from CA at their sunrise. The Thunderbolt received the best report 100% of the time-6/6. The Cushcraft was better 83.3% of the time over the OCF dipole-5/6 (except for one time with the UK). It should be noted that I was heard all six times on all 3 antennas...with legal limit on 80 meters, which really is all that matters, right? :-)

On 40 Meters, the Thunderbolt is about 1 to 1.5 S units louder than the Cushcraft MA 80/40 V over 1,000 miles. The Cushcraft does perform much better on 40 meters than on 80 meters, however. It closes the gap somewhat but not all the way. I did 6 TRANSMIT ONLY tests, 2 with JA, 2 with ZL and 2 with South Africa. The Thunderbolt again performed best 100% of the time-6/6. The Cushcraft also performed better than the OCF dipole 100% of the time by a .5 to 1.5 S unit difference. There was 1 time where the South African station could not hear me on the OCF dipole with legal limit on 40 meters. In all fairness, the conditions were rough. I could be heard on the Thunderbolt and Cushcraft all 6 times, however.

This may not be scientific, but these are the facts. I now use my OCF dipole as a supplement receive antenna to the K9AY...hi hi.

This just may be one of the best verticals on the market.
KD7BS Rating: 5/5 Feb 7, 2010 13:10 Send this review to a friend
Built like a tank, superb service from DX Engineering  Time owned: 0 to 3 months
Ok - so a vertical is just a vertical, unless it is the DXE-8040VA-1 Thunderbolt. This antenna is very well designed and built with heavy duty parts and tubing. The tubing starts out at 3" diameter and drops to 1" at the top.
I needed an antenna that I could easily lower when not in use, and would be self supporting with no guys when up for use. The winch and heavy duty mount allows for very easy, and safe lowering and raising of the antenna.
I am using the antenna with 46 radials, the DX Engineering radial plate and their heavy duty vertical balun.
The antenna assembles quickly and tunes easily, and has a broad tuning range due to the large diameter tubing - I was able to work Chile on 40 meters the first evening and Japan on 80 meters the next morning -a huge improvement over my wire dipoe antenna.
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