{"id":47916,"date":"2021-02-25T08:23:07","date_gmt":"2021-02-25T12:23:07","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=47916"},"modified":"2021-02-25T08:30:02","modified_gmt":"2021-02-25T12:30:02","slug":"visair-sdr-transceiver-randy-purchased-one-exclusively-for-shortwave-radio-listening","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2021\/02\/visair-sdr-transceiver-randy-purchased-one-exclusively-for-shortwave-radio-listening\/","title":{"rendered":"VisAir HF DDC\/DUC Transceiver: Randy purchased one exclusively for shortwave radio listening"},"content":{"rendered":"

\"\"<\/a>Many thanks to SWLing Post<\/em> contributor, Dan Robinson, who recently shared a message he received from his friend Randy regarding the VisAir HF DDC\/DUC Transceiver<\/a>:<\/p>\n

I recently acquired a VisAir transceiver from Russia. It is an amazing SDR unit developed by two amateur radio operators. It is about the same size as the RDR55<\/a>, but at about 1\/3 the cost. While it does not have FM or amateur 2\/6 meter, GPS, and a couple of features, this VisAir has other features not found on the RDR55 such as dual receivers, waterfall, receiving audio equalizer, CW decoder, etc. It is a true SDR receiver. The user manual was in Russian and I had to break it into thirds so that I could get it translated into English. Interestingly, the user interface is completely in English despite its Russian origins. While designed primarily for amateur radio operators, it works especially well on the shortwave bands.<\/p>\n

[…]I have really been enjoying this “transceiver” and as you imagine, I use only the receiver portion of the unit. It has two antenna connectors and you can configure these however you prefer. I set one as a receive antenna and the other as a transmit antenna to avoid accidentally hitting the antenna match or some function and sending power into my equipment. I also disabled the transmitter portion to further protect against any accidental transmissions.<\/p><\/blockquote>\n

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Unfortunately, virtually all the YouTube videos and information are in Russian and also its use is shown only on the amateur radio bands, but I can tell you that this is a very nice SW DX receiver with lots of interesting user defined menus whereby the unit can be modified to match the user’s preferences. Here is a website with some information on the unit<\/a>.<\/p>\n

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As you know, I have enjoyed using a wide variety of communications receivers from simple beginner’s units to the more complex and highly esteemed units built to exacting standards for government use. This VisAir is built by two guys in Russia and amazingly it was designed by them in 2017 and not a whole team of design engineers such as found at Yaesu, Kenwood, and Icom. From what I understand, the unit sells in Russia in rubles for the equivalent of about $1800 USD. Unfortunately it is not exported to the USA and it only comes with a 220 VAC power supply and so I operate it exclusively off of DC current without any issue. It is my understanding that this low production transceiver has sold between about 200 – 300 units and virtually all of these were in Russia. To my knowledge, I am the only person in the USA with this unit. Further, it is my understanding is that there is a wait list of about 2 years to obtain the unit. The VisAir is upgraded via firmware and my unit has the latest firmware installed.<\/span><\/p>\n

When I got information about the transceiver to consider for purchase, there was only a Russian user manual available. I have access to an online PDF translator, but it can only accept up to 10 MB files and so I had to break the Russian manual into 3 sections, translate each section into English, and then stitch the 3 sections back together to make a complete English manual (which is too large to email as a whole). Attached are sections 2 and 3 of this English user manual for the VisAir:<\/p>\n