Wolphi-Link is an Android Smartphone to Ham Radio interface similar to the interface shown in the QST 5/2012 article. Wolphi-Link works with DroidSSTV, DroidPSK, DroidRTTY and Morse Decoder. It will work with radio’s which don’t have a VOX. “Audio in” and “Audio out” levels are adjustable. The interface connects with a 4 pin 3.5mm (both ends) to the Android Device and with a 6 pin Mini DIN (both ends) to the FT817, FT857 or FT897. The interface should work with other radios as well but the cable needs to be customized. For customized cables please contact us atinfo@wolphi.com .
Important: The interface uses the voltage of the microphone pin of the phone. The voltage on the microphone pin is ussually used to supply an electred microphone in headsets with a voltage. The voltage varies from phone to phone. We measured voltages between 1.8V – 2.7V on various phones but it might be possible that certain phones have a lower voltages. If the voltage is lower than 1.4V this interface will not work but so far we are not aware of any phones or tablets which have a voltage lower than 1.8V.
Wolphi-Link will not work on first generation Nexus 7 tablet (2012 version). The Nexus 7 2nd generation (2013 version) works fine.
WolphiLink might not work properly if you transmit on VHF or UHF while having your antenna to close to your phone/tablet and WolphiLink. The PTT might get triggered by RF and would not release.
Wolphi-Link interface. Assembled in enclosure. The dimensions are only 50mm x 35mm x 20mm. Wolphi-Link uses a 6 pin mini DIN jack to connect a cable to a radio and a 4 pin 3.5mm jack to connect Wolphi-Link to the Android Device. Please download the owners manual here
