HFU HF Underground

Technical Topics => Equipment => Topic started by: jordan on January 26, 2014, 1734 UTC

Title: Transmitting audio on Yaesu HF rig
Post by: jordan on January 26, 2014, 1734 UTC

Is it possible to hook up an audio source (such as an iPod) to transmit audio on a Yaesu HF rig?  How exactly is the microphone jack configured?

Title: Re: Transmitting audio on Yaesu HF rig
Post by: Beerus Maximus on February 02, 2014, 2206 UTC

Yes, absolutely. Audio can go in via the mic jack, and some radios also have an auxiliary "data" audio jack on the back. In either case you need to know the pin-outs, which are available here:

http://www.qsl.net/wm2u/inter_ft.html

Building a simple interface for low cost is described here:

http://www.qsl.net/wm2u/interface.html

Or you can simply buy a commercially available interface box and cable, and not have to worry about doing anything other than plugging it in. MFJ, West Mountain Radio, and Tigertronics all manufacturer boxes and cables to make this hookup simple.

Title: Re: Transmitting audio on Yaesu HF rig
Post by: bumbelstock on February 03, 2014, 1121 UTC

Jordan,100%  ;)
I have done this to a AM CB Rig plus my modified TR45 Transverter to tx portabel some music.
You simply just take the wire setup from the mic jack, 3,5mm mono jack wired to 'NF' Pin and Ground and one switch to do 'TX' to the 'Ground'.  I use just a CD Player or other Audio Source.
Made this with the 8 Pin Alinco Mic Connector and it work's also. Audio comming good,you just take a look about the Audio Level from your Source,this should not be too high.

Good DX!

Title: Re: Transmitting audio on Yaesu HF rig
Post by: Reverend Bow Voodoo on May 01, 2014, 0147 UTC

What model Yaesu?

If it has as Accessory Port, you can run the audio through there, which will bypass the audio filters in the microphone circuit, which cuts the lows and the highs that give you that "DX" audio...

Title: Re: Transmitting audio on Yaesu HF rig
Post by: redhat on May 25, 2014, 0133 UTC

I used a Yeasu FT-857 as a SSB exciter for awhile using the data input on the back.  I robbed the cable out of a PS/2 Keyboard, then routed the appropriate wires to a switch for TX/RX and audio in.  At least on my rig, the data port was only usable during SSB transmission.  It will not work in AM :(

+-RH