MegaDipol MD300DX Tips and Tricks

MegaDipol MD300DX

The MegaDipol has been available since May 2018 and is becoming increasingly popular. I have received many queries regarding the correct assembly of this antenna. In these notes I would like to show how easy it is to assemble and erect the MegaDipol.

The right installation: “It can be so easy”

It does not take much to put up the MegaDipol MD300DX correctly and should not take more than 15 minutes. A second pair of hands would be helpful but is not absolutely necessary. The following items are sufficient:

….and here we go

The MegaDipol MD300DX can be erected in various ways. Experience has shown that best results are achieved when the antenna is installed vertically. For a stable installation I recommend ordering the pole mount when you order a MegaDipol antenna. You can make do with two additional cable ties but the pole mount makes the installation much more stable. Continue reading

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Mini adapter cable fro the Airspy HF+

I got a request from a customer who wanted to connect an Airspy HF + to the GI300. The problem is that a BNC adapter and the GI300 are much thicker than the HF + receiver. You could of course take an adapter cable. But the GI300 disconnects the ground and therefore the cable must be very short to avoid interference.

Now I have made the customer a very short piece of Hyperflex 5 with the two connectors (BNC to SMA) that is only 10cm long. The result looks very nice and works well.

Mini Adapter cable bnc to SMA Hyperflex 5 Crystal

If you have special requests and need a solution, feel free to contact us at . We’ll see how we can help.

Adapter cables availabe here: 

Keep Listening


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Adapter cabels / Jumper / Pigtails

More and more we are getting requests from customers who would like to buy cables with all sorts of connectors already attached. That is why we have started to produce and offer custom-made cables.

In the new section “Adapter Cables” you can now order various cables with all sorts of connectors., e.g., SMA male on PL-socket or SAM male on N male. The maximum length of a custom-made cable is 500m.

The number of possibilities is unlimited and we plan to expand this category further. If you have a special request, please, ask us and we will make you an offer.
Continue reading

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Testing the GI300 Galvanic Isolator for noise suppression

My QTH suffers very badly from local QRM and of course many DXers and radio  aficionados have the same problem. This has resulted in my not being able to conduct any MW DX in the early evenings; in fact I’m not able to operate with even a reasonable noise floor until well after midnight when the neighbors have switched of TVs etc. and gone to bed. Thus, I’m usually up half the night when I want to DX on Medium Wave and similarly with Shortwave. Thank goodness for the recording facility on the Elad FDM software. If it weren’t for that, I’d have gotten even less sleep these past two years. Continue reading

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Registration and reactivation working

Registration and reactivation are work again. We tested everything on 10/1/2018 and it worked in every program.

We will soon also change the MeteoServer to the new server. For this reason it could that you have have temporarily, for a short time give no access until all name servers have changed to the new address.

Thank you for your understanding
Your Bonito Team

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Due to the move to our new server, the registration or reactivation of our software is currently not working. We are in the process of making the necessary adjustments.

Your Bonito Team

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Travelling and DXing with the Bonito MegActive MA305 antenna


Ok, so officially it wasn’t a DXpedition; it was a well needed vacation in the sun after several hectic months of work, some of which involved travel to slightly more exotic locations. However, these days, I view any travel, whether it be for business or pleasure as a ‘DXpedition’ opportunity! Some of you might remember that I purchased a Bonito Boni Whip at the beginning of 2017 because (a) I needed another antenna and (b) a second Wellbrook loop felt like too much of an extravagance. They’re excellent antennas for sure, but at around £300, I couldn’t justify buying another. Thus, for about a third of the price I bought the Boni Whip. It proved to be an excellent choice – very compact and so perfect for my regular DXpeditions, quick to set up and capable of really excellent DX. There are many videos on the Oxford Shortwave Log YouTube channel that are testament to this. I wrote a couple of articles, published here on the SWLing Post which were seen by Dennis Walter of Bonito, who subsequently contacted me and offered to send over their MegActive MA305 E-field antenna for testing. Dennis made it crystal-clear that I was to ‘do my own thing’…test the antenna in any way I saw fit and publish my findings so DXers/radio enthusiasts could learn more about the capabilities of the antenna – from another DXer. I was happy to agree to this arrangement and the MegActive MA305 duly arrived, complete with two lengths of (bayonet BNC terminated) high quality H-155 coaxial cable. Continue reading

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The Bonito Boni-Whip: proving to be excellent portable antenna for DXing

Hi there, if you’re a subscriber to the Oxford Shortwave Log YouTube channel, you will be aware that I have been using a Wellbrook ALA1530 H field antenna, for 15 months or so, with (at times) excellent results. A while back I was on the lookout for a second antenna, however at more than £250, I couldn’t justify purchasing a second Wellbrook. Ultimately I splashed out on the Bonito Boni whip E-field wideband active antenna (20 kHz to 300 MHz) and with a very compact form-factor suitable for DXpeditions/portable operation in general, the Boni whip definitely ticked all the boxes. Furthermore, with reasonable second and third order intercept points of +55 and +32.5 dBm respectively, the Boni whip, on paper at least, looked like a pretty good buy at around £100. Continue reading

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New Italian Brochure is online now

For my Italian friends. See you next week in Montichiari.

Italian Brochure is ready for download:

Thank you Luca for your help.

Keep listening


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Why even good antennas need good Coax cable

“Nothing’s going on shortwave anymore!”


Many ham radio operators and SWLs keep telling me that nothing is going on on shortwave. On top of that there are news that international stations are discontinued and you keep thinking, “Ok, this station is gone now as well, too bad.” The listeners forget about it and in the worst case, they pursue a different hobby.

Many OMs do not notice that there is not less activity on the band but that local noise has become a lot stronger and so many stations get lost “in the mud” and cannot be heard anymore.

noise floor

That means that these stations are simply hidden by the noise floor and are beneath the local noise level. Continue reading

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