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Posted: 11/13/2018
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Take the Boatanchor Survey!

Let authors and organizers know what you're interested in Take the Vintage Radio Interest Survey:  https://tinyurl.com/boatanchorsurveyThis survey is intended to better understand your vintage radio-related interests for use by vintage radio authors, product developers, and event organizers.Entering your email address helps to ensure the quality of the survey and enables you to receive an Executive Summary of the survey results when it is completed ...  READ MORE
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Posted: 11/11/2018
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Announcing the VERSA-TR (as seen in Dec. 2018 QST)

A Versatile T/R solution for SDRs and vintage radios Inexpensive Software Defined Radios offer excellent performance and value for hams and SWLs, but they lack key features that are needed for actual use on the air:Provision for automatically muting the speakers when transmitting, to eliminate overloading and audio feedback.A sidetone to monitor CW keying. SDRs do not provide a CW sidetone, and even worse, the time delay resulting from digital signa...  READ MORE
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Posted: 11/10/2018
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Welcome to the new RAN Technology Inc. Website

Bookmark this site! The new RAN Technology Inc. /  W9RAN webpage is on the air!   Please bookmark this page and check back often for news and information ranging from vintage radio to the latest developments in Software Defined Radio. ...  READ MORE

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Category: VERSA-TR Information
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Using VERSA-TR as an RF-actuated switch

The muting relay on the VERSA-TR can be used to control other devices when RF is present.   An example would be an "On The Air" sign, or to key an amplifier.    One specially-wired cable is required - note that no connection is made to the sleeve, which is usually the ground connection on a TRS plug.  A normally-open set of relay contacts exists between the ...  READ MORE
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Category: VERSA-TR Information
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Using VERSA-TR with conventional speakers

Muting requires a different speaker connection VERSA-TR can be used to mute conventional (non-amplified) speakers as would be used with a non-SDR receiver.    This requires the user to wire up two cables with 3.5mm (1/8") stereo plugs on one end.   Note that connections are made to EITHER the tip or ring of the connector and to the sleeve which is normally the ground return.   It doesn't matter whether yo...  READ MORE
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Category: VERSA-TR Information
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TRS (stereo audio) plug reference

3 circuit TRS, 1/8" (3.5mm) diameter plug Just for reference, the common 1/8" dia. stereo plug which is used for VERSA-TR speaker/audio connections.   The three connections are commonly known as Tip, Ring, and Sleeve, but are typically wired as Left, Right, and Ground in stereo audio hookups.   ...  READ MORE
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Category: VERSA-TR Information
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VERSA-TR Connections and controls

for reference This diagram shows the normal connections for antenna switching and muting amplified computer speakers as would be used with an SDR or SDR-panadaptor.    All connections are "plug and play", and the amplified speakers can be left attached all the time for normal computer sound use.  The audio will be muted when RF is present and a sidetone will be heard if the Sideton...  READ MORE
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Category: VERSA-TR Information
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VERSA-TR Layout and Connector Locations

For reference - click image to enlarge...  READ MORE