I want to be able to use headphones just to listen. Something like a pair of earbuds.

I do NOT want a speaker mike or anything like that.

Does anyone have an easy solution,? like an off the shelf adapter that will work and provide mono audio in both ears?? I understand the TRRS differences plus the mono output and the issues involved.? ?I'm looking for a simple solution like an adapter or cable that does it all.

73?
Gary K9GS

The Yaesu CT-44 will enable what you want to do, I believe.
--
Clint Bradford K6LCS
http//www.work-sat.com

开云体育

CT-44 won't do it.? I don't think what you want is achievable.? I believe when you plug anything into the external speaker/microphone port it shuts off the built in speaker and microphone.? If you just plug headphones into the CT-44 you won't be able to talk.? You'll need a headset with a microphone if you want to communicate.?

开云体育

I would get a cheap speaker mic that fits the radio off eBay. Make sure it has an earphone jack on it, then plug your mono headset into that.?

开云体育

I did something like that a while back.? I think you way also need a stereo jack to mono plug adapter between the earbuds and the CT-44.? My earbuds used a 3-conductor plug (no mic or volume control).? I have a bunch of different HTs and some make a rather loud pop in your ear when the squelch opens and/or closes.? I can't particularly remember what the FT-60 did.

73, Nick, AA3T

Sent from our laptop

Just use a two-wire surveillance system. Or plug your earphone in the bottom of a MH-34 speaker-mic.
--
Clint Bradford K6LCS
http//www.work-sat.com

Unfortunately, the only solution I've found for the FT-60 has been to put a headset into an external speaker mic.

Also, the FT-60 has some nasty bias voltage (~3v!) on the audio output, which makes a loud thump in a headset when the radio unmutes. One solution is to make a short jumper cable with a 3.5mm stereo jack on one end and a mono plug on the other. In my case, driving a Sony 7506 headset, two .33?f dipped caps in parallel with the audio signal fit neatly in the stereo jack shell,?one lead to the tip and the other across both audio lines in the cable. They block the bias voltage, and also filter out a bit of low frequency noise.

The thumping is not as much of an issue with earbuds, as the smaller diaphragms in the earbuds don't jump around as violently as the larger ones in over-the-ear phones.

Rick

KK6WHJ

>> ... Unfortunately, the only solution I've found for the FT-60 has been to put a headset into an external speaker mic.

There are several simple setups for the FT-60R: ones that? plug directly in to the radio, offering an earpiece, single-sided headset, or dual-sided headset. No adapters, no fuss.

Earbud model -?

Yaesu's single-sided headset -?

Heil's single-sided headset -?



--
Clint Bradford K6LCS
http//www.work-sat.com

On Tue, Apr 28, 2020 at 10:36 AM, Rick Levine wrote:

Unfortunately, the only solution I've found for the FT-60 has been to put a headset into an external speaker mic.

Also, the FT-60 has some nasty bias voltage (~3v!) on the audio output, which makes a loud thump in a headset when the radio unmutes. One solution is to make a short jumper cable with a 3.5mm stereo jack on one end and a mono plug on the other. In my case, driving a Sony 7506 headset, two .33?f dipped caps in parallel with the audio signal fit neatly in the stereo jack shell,?one lead to the tip and the other across both audio lines in the cable. They block the bias voltage, and also filter out a bit of low frequency noise.

The thumping is not as much of an issue with earbuds, as the smaller diaphragms in the earbuds don't jump around as violently as the larger ones in over-the-ear phones.

Rick

KK6WHJ

?Hi Rick and thanks for the reply.? Others have mentioned buying a speaker mic and plugging in a headset...not what I want.? I don't want a mic, just to listen.

But since you mentioned the DC bias problem you gave me an idea.? I think what I'm going to do is look for a right angle TRRS male plug that comes apart.? Then I'll find a pair of earbuds that I like, cut off whatever plug is on them, and then wire them to the right angle TRRS male plug and put the capacitors inside like you suggested.

I found this plug on Amazon but I'm not about to spend almost $20 for a silly right angle plug:



___________________________________________

Instead what I may do is buy one of these:



and on the un-terminated end install a 3.5 mm TRS JACK (easy to find and inexpensive) to plug the earbuds into and put the capacitors inside the jack housing.? I'm leaning towards this so I can use any headphones including my Sony 7506's if I want.

Regardless, a pain in the butt and maybe not worth the effort.? Just wish I could buy something but I don't think it exists.

73,

Gary K9GS

开云体育

Oops. This group isn't set up to accept attachments. Sorry.

Rick