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Reviews Categories | Antennas: HF: Verticals; Wire; Loop | DX Engineering ARAV-4P Active Receive Verticals, 4 Pack Help

Reviews Summary for DX Engineering ARAV-4P Active Receive Verticals, 4 Pack
DX Engineering ARAV-4P Active Receive Verticals, 4 Pack Reviews: 5 Average rating: 5.0/5 MSRP: $796.00
Description: The DXE-ARAV-4P Active Receive Antenna array package contains 4 of the DXE- ARAV-1P Active Receive Antennas. This package is intended for use with the DXE-RFS-1P Receive Four-Square system to build a Four-Square Receiving Array. The FVI-1 Feedline Voltage Injectors are not included as the RFS-1 has provision for powering the active antennas.
Product is in production.
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You can write your own review of the DX Engineering ARAV-4P Active Receive Verticals, 4 Pack.

K4PI Rating: 5/5 Dec 31, 2018 14:13 Send this review to a friend
Update  Time owned: more than 12 months
After using this over a year or two I wanted to update the original review a little.. This unit has really helped me out on 80 meters. I think it works much better on 80 due to the foot print I have it spaced 80 ft on each side. That is about all I can squeeze out here at the home QTH trying to keep it away from other towers here. It does very well on 160 but I think it would do better if I had more spacing. I use it primarily on 160-60. if you have limited space then this will do well for you if you can keep it away from large metal objects. From Oct to Dec 2018 I worked 60 different countries on 160 M with limited time which speaks well for its ability to hear.
VE6AMI Rating: 5/5 Feb 28, 2012 11:23 Send this review to a friend
Using Circle 8 Vertical System  Time owned: 0 to 3 months
Recently purchased the Circle 8 System. Installed mid-winter and the equipment has been operating at temperatures as low as -35F degrees. Presently setup for a dual band operation (20m & 40m). Here's some differences noted, when compared to my two 450 foot reversable beverages (20m & 40m).

a) Equipment install footprint is much smaller
b) Overall TIC cost is about 30% more than two R.B.'s
c) Directional signal selectivity is much better
d) Signal to noise ratio is about same or better
e) Install time 1/4 of doing a R.B. system

In many cases there is a 3 S unit background noise level difference (reduction) when compared to the receive signals obtained from the X-7 yagi I use. My neighbour has a Butternut vertical - after hearing the reception from the Circle 8 system, his words were, "do not even attempt to compare".

Circle 8 kit equipment quality from DX Eng. is top notch - mostly stainless steel and precisely fabricated.

I believe a monoband setup with this gear would make the system perform even better.
DL6LAU Rating: 5/5 Feb 2, 2006 02:24 Send this review to a friend
Performed like 200-240m long Beverages  Time owned: 0 to 3 months
First: We (DL4LAM - Peter, DL6LAU - Carsten, SM6CNN - Anders, SM6CMU - Ingemar, SM6DOI - Staffan,) are not connected to DX-Engineering in anyway - in fact it was the first time I 'went shopping' at DXE ...
But: As both SM6DOI and me are selling amateur radio products here in Europe, we are always looking for products to distribute ;-) ...

As early adopters, DL4LAM and I were very interested in the RX 4-square from DXE. Somewhere (on the Internet?) there was the claim it will work like 240m long Beverages but will 'only' need a 41m x 41m footprint for optimum
performance on 160m.
Unfortunately there were not many 'real-life' reports found.

2 weeks ago DL4LAM and I placed the order for an

- DXE-RFS-1P Receive Four Square with Controller
- DXE-ARAV-4P Active Receive Antenna, vertical configuration, pack of 4
- DXE-RPA-1 (optional preamp)
- some small stuff like connectors and the like ...

Than the big question for me (living on a 30mx30m lot) was were to put them to try ... To make it short ... I decided to visit Staffan, SM6DOI close to Gothenburg. Staffan is well known for his 160m expertise, he has a 50m tall vertical to transmit (very close to the Baltic Sea (Swedish West coast) and 8 Beverages for RX.

In detail these are

0° 180m long
60° 180m long
120° 240m long
180° 200m long
240° 240m long
300° 200m long

All up 1,5 meters, 9:1 ferrite balun, terminated with 460 ohms, Ground rods are one meter at the terminated side and three metres at the feed point. All coax is RG58. Ground under the antennas is wet blue clay.

Uli, DJ2YA was kind enough to measure the exact velocity factor of the used RG-6 coax (0.84 in our case) so I could cut the delay lines as explained in the manual (you can download these from DXE if you need more details) and installed the so called 'Snap n Seal' connectors - btw - these connectors are great an so easy and quick to assemble, never saw them b4 in Europe ...

Thursday morning I loaded the car and drove about 700km to meet Staffan. He and SM6CMU had already prepared some wooden pallets (still a lot of snow on the frozen ground in SM) with a short
aluminium tubing for the active vertical elements. They also had positioned the palettes that the side length of the 4-square was 135ft (41.15m) and that 2 of the elements were
pointing to 310° (resulting in 40°, 130°, 220°for the other directions).

A 1m ground rod was used at each vertical. When I took out the 102in (2.6m) 'long' whips Staffan and Ingemar were looking rather amazed. This should work like a 240m long Beverage - hard to believe ...

The RX4SQ was positioned about 100m from the shack and about 200m from the TX antenna. One of the Beverages was close to one element of the RX4SQ (within 3m or so) and an unused 10m tower was about 20m away. Other than that the 4SQ was on an open field ...

The installation went very quick. Back in the shack we had an ORION I and a box were the Beverages could be selected. The same box had another RX input and we connected the 4 position switch for the RX4SQ to this input. This
allowed us to instantly switch between the 2 antenna systems for A - B comparison.

As it was still daylight we checked the performance on the OK beacon on 1854kHz. The result was amazing. The F/B of the RX4SQ was very good (25-30dB) with a very clear forward lobe. Ok, it was still daylight, probably it will only work nice at day ;-) ...
But also when dawn came, we had the same results ... The signal output of the RX4SQ was lower than the Beverages but there was not a single case were the RX4SQ would have lost a QSO compared to the Beverages. We than tried the
optional preamp from DXE and signals got stronger (with more or less the same SNR). It was more a personal taste ... I liked the 'stronger signal',
some others from the test crew didn't ...
We only made a handful of contacts during the first day of the contest spending hour after hour comparing the Beverages against the RX4SQ.
We compared the antennas quite some time on signals from NP4A, PY7ZY, 6O0N, VP9I, KG4SB, 9N7JO, PJ2T, HA7TM/HI9, HS0ZDJ, W's, JA's and the result was ALWAYS the same ... The difference was VERY SMALL in most cases, sometimes the Beverage was 'a little bit' better, sometimes the other way round. Very often there was really no difference.
The second contest night brought the same results. After sunrise we disassembled the RX4SQ and I took another 8 hour drive back home ....

So talking about the comparison at the SM6DOI QTH, the RX4SQ worked like advertised and MUCH BETTER than we all thought. One might say that maybe Staffans Beverages do not work well but looking at his results on 160m I think they work (quite) good (on his very good ground). Maybe it was an advantage to have the RX4SQ on very good ground also ...

There would have many more tests possible but a long weekend is just too short ... We thought about reducing the side length in the second night to 70 feet and see how the system works with this spacing but this would have caused some more work in cutting the delay lines to the new length. 'Social commitments' did not make this happen - maybe next time ....

We did some listening on 80m and 40m too and 80m seemed to perform very well with the spacing we used too. On 40m the directivity was very low but the array was still very good on receive (always compared to the above mentioned Beverages)

For us, the performance was truly outstanding for 4 phased 2.6m long whips.

Hope that all the details did not bore you, we wanted to give you some more insight about the installation rather than saying
"THE DX Engineering RX 4-SQUARE WORKS GREAT" ... (although this would have said it all)

Well done Tom and DXE ... Maybe I will add some more thoughts later ...

We enjoyed listening to your signals (no VK, ZL, W6 heard here)! I will gladly answer questions about 'our installation' and the like if you have
some ...


Carsten, DL6LAU (and DL4LAM, SM6CNN, SM6CMU, SM6DOI)
NQ4I Rating: 5/5 Nov 10, 2005 04:50 Send this review to a friend
Best directional antenna yet!!  Time owned: 0 to 3 months
I have had the system for 9 weeks, and have had the opportunity to compare them side-by-side with my 800 ft beverages...the receiving 4 SQ has better F/B and F/S than the beverages period! The receiving 4 SQ allows you to NULL out an interferring station, and the DX signals peak rather dramatically in the proper direction. If you need beverage quality low band receiving antennas and real estate is a problem, then this antenna is for you! I used the 98 foot spacing and was amazed at the performance on 160 meters and 80 meters too! The receiving 4 SQ was real impressive in the Broadcast band also!! Signals were heard on frequencies at sunrise in 4 different directions that were 20 db over S9 and on the same frequency! My receiving 4 SQ shows good directivity even up to 40 meters! A very well designed product and its performance is amazing for its size...performance equal to or better than 800 foot beverages in such a small package!
W3UA Rating: 5/5 Nov 6, 2005 21:48 Send this review to a friend
Great receiving elements for low bands.  Time owned: 0 to 3 months
See also my review of the DX Engineering Receiving Four Square Antenna Switch. Antennas used in 4-sq receiving array, 98 feet spacing. In my QTH the soil is poor (Granite State!), and two of four verticals are just over solid rock. So I use 8 buried radials per antenna, 20 feet long each. I also purchased DX Engineering receiving preamplifier, which works well, but in my case it is not necessary, since the antennas themselves provide more than adequate signal. So far, everything works great.

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