eHam.net - Amateur Radio (Ham Radio) Community

Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net



[Articles Home]  [Add Article]  

My Idea for Listening Headphones

from Merlin Jacobs K3MEJ on November 22, 2017
View comments about this article!

I enjoy listening to more than one signal, station or frequency, as I'm sure many of you do. Especially when I'm in a noisy environment or around other people.

So here is my idea: A set of headphones that have independent ear cups. Have them setup to be independently wired, independent Bluetooth capabilities, independent volume controls and add noise canceling for each too.

You can make your own by cannibalizing two sets of headphones into one set of headphones.

I can't believe the manufactures have not come up with this idea yet. They would have an enormous market.

Merlin, K3MEJ

Member Comments:
Add A Comment
 
My Idea for Listening Headphones Reply
by NA4IT on November 22, 2017 Mail this to a friend!
You wouldn't need to cannibalize two headphones. Make a stereo to double mono adapter, and put all your electronics into an outboard interface box.

It would be easy to wire the volume controls, you could also put a tone circuit in the box, and you can get bluetooth adapters that you could put in there. You could even have a switch on both inputs to go from bluetooth to cable connected.
 
My Idea for Listening Headphones Reply
by W0AEW on November 22, 2017 Mail this to a friend!
Why would I want to listen to more than one station at the same time? I prefer to filter out all but the one I'm trying to copy (I'm talking about CW).

And when you say noisy environment, do you mean QRM or noise from other sources in the room?

In either case, I don't see how independent controls for each earphone helps with anything other than compensating for different degrees of hearing loss in each ear.
 
RE: My Idea for Listening Headphones Reply
by AC7CW on November 22, 2017 Mail this to a friend!
CW ops have done that in the (distant) past. I've only read about it, never tried it. They would put a crossover network ahead of the phones and as they tuned, signals would move from one side of their head to the other. It would give them a spatial separation of signals and help them decode. The upper/lower sideband thingy probably ruined it for them. Some bands would tune right to left and some left to right therefore violating the KISS rule... they probably would have trouble walking to get a cup of coffee after a band change.
 
Why Even Bother…? Reply
by VE3CUI on November 22, 2017 Mail this to a friend!
I am, quite frankly, amazed that some starry-eyed fan of one of the new computerized digital modes hasn't weighed-in on this topic, exclaiming aloud, "…So who needs earphones, anyway…?!"

Being able to actually HEAR a station anymore is just about as "…passe" as amplitude modulation, and spark, is it not…?! "Look…! There he is, right on my computer screen…!" :o)
 
RE: Why Even Bother…? Reply
by AF6AU on November 22, 2017 Mail this to a friend!
Okay, separate and different signals to each ear?

2 meter FM Qso and a 20 meter CW exchange...

Like having the wife on my left and the mother in law on the right, and they are arguing about nail polish or something... That's the new definition of insanity...

Happy turkey day....
 
RE: Why Even Bother…? Reply
by W8JH on November 22, 2017 Mail this to a friend!
The Elecraft K3 and K3s can do this out of the box with the subreceiver in one ear and the main VFO in the other.

Works great!

73,

Joe
 
My Idea for Listening Headphones Reply
by WX4O on November 22, 2017 Mail this to a friend!
I have a pair of MFJ headphones (392-B) that have separate controls for each ear.
 
RE: Why Even Bother…? Reply
by WE6C on November 22, 2017 Mail this to a friend!
AF6AU, Great! ROFLMFAO!!!
 
My Idea for Listening Headphones Reply
by W8LV on November 22, 2017 Mail this to a friend!
I think you mean a "Split Set"...

I'm surprised that someone doesn't have a little "modern" 3.5 mm/and/or bluetooth Double Jack Thingie" with volume/on/off/left/right/both/neither(mute).

It would be nice to have a little box that did all of that, and also can combine them for "one ear mobile" operating.

Maybe Bob Heil has one?

73 and All the Best!
DE W8LV Bill





 
RE: Add a Third Audio Signal. Reply
by WD9IDV on November 23, 2017 Mail this to a friend!
"Like having the wife on my left and the mother in law on the right, and they are arguing about nail polish or something... That's the new definition of insanity..."

I agree....but add in a third source directly in front of you. Put a mistress in the audio mix as well.

Now that's insanity.

Happy Thanksgiving to all.
 
My Idea for Listening Headphones Reply
by AA4OO on November 23, 2017 Mail this to a friend!
Elecraft radios allow that now. They offer numerous stereo options for output. One option allows the split to go to separate left-right channels.
 
My Idea for Listening Headphones Reply
by K8AXW on November 23, 2017 Mail this to a friend!
This has been going on for over a century! It's called QRM and it's very simple to set up.

Just open the filter system and you can hear two, three, four or a hundred different signals if there is a pile-up going!

Shhhech!
 
My Idea for Listening Headphones Reply
by AB1UP on November 24, 2017 Mail this to a friend!
If you go back to the 80's there was a design article, either in ham radio magazine or QST of a spatial binaural filter for CW ops. They took the receiver output fed it into a series of op amps that gave the left speaker audio filtered with a highpass and the right speaker with audio filtered with a low pass. The brain created a spatial distribution of the cw signals allowing the listener to pick out one of several cw operators that were close together in frequency. You could also change the amplitude of either channel before using the system to account for differences in sound perception for each ear.
While it's not a new concept it has not been applied to bluetooth earbuds.
 
My Idea for Listening Headphones Reply
by AB1UP on November 24, 2017 Mail this to a friend!
If you go back to the 80's there was a design article, either in ham radio magazine or QST of a spatial binaural filter for CW ops. They took the receiver output fed it into a series of op amps that gave the left speaker audio filtered with a highpass and the right speaker with audio filtered with a low pass. The brain created a spatial distribution of the cw signals allowing the listener to pick out one of several cw operators that were close together in frequency. You could also change the amplitude of either channel before using the system to account for differences in sound perception for each ear.
While it's not a new concept it has not been applied to bluetooth earbuds.
 
My Idea for Listening Headphones Reply
by AB1UP on November 24, 2017 Mail this to a friend!
If you go back to the 80's there was a design article, either in ham radio magazine or QST of a spatial binaural filter for CW ops. They took the receiver output fed it into a series of op amps that gave the left speaker audio filtered with a highpass and the right speaker with audio filtered with a low pass. The brain created a spatial distribution of the cw signals allowing the listener to pick out one of several cw operators that were close together in frequency. You could also change the amplitude of either channel before using the system to account for differences in sound perception for each ear.
While it's not a new concept it has not been applied to bluetooth earbuds.
 
RE: My Idea for Listening Headphones Reply
by AC7CW on November 25, 2017 Mail this to a friend!
I'll never have Bluetooth in my station. Latency [it's better with the newest spec but it's still there], hassles with connecting, etc. I have a pair so the xyl can hear the tv without it disturbing anybody. She likes them, they sound better than a tv speaker obviously but I had to sacrifice to the BT gods to learn how to get them to connect and the battery life is measured in hours. My Sennheiser FM headphones for tv run on a pair of AAA batteries for many days...
 
RE: My Idea for Listening Headphones Reply
by K5TED on November 25, 2017 Mail this to a friend!
1. Bluetooth is pointless. It works, but is unnecessary, unless your goal is to listen to your station wirelessly while physically in another part of the house. Why? You gonna sit in the family room with headphones on while everybody else is watching A-Team on Hulu?

2. All of what you describe is attainable by routing your rig audio through a PC, using a few inexpensive USB audio devices.
 
RE: My Idea for Listening Headphones Reply
by W8QZ on November 27, 2017 Mail this to a friend!
I can do that now with my Flex - i.e. listen to the DX with one ear, listen to a place in the 'split' pileup with the other (with the 2nd receiver and stereo headphones). Sometimes helpful, but not always.
 
RE: My Idea for Listening Headphones Reply
by SWMAN on November 28, 2017 Mail this to a friend!
Merlin, Good idea !!
 
My Idea for Listening Headphones Reply
by W0FEN on November 28, 2017 Mail this to a friend!
Years ago, I wired up a helicopter traffic for 4 inputs to headphones 2 sources in each ear. Very easy to do.
 
My Idea for Listening Headphones Reply
by K5PSH on November 28, 2017 Mail this to a friend!
the split headphone is an excellent way to hear DX in one ear and possibly monitor the calling freq of the ''pack'' with the other--we used splits in a certain government group during the sixties to listen to a target control station in one ear and search for the outstation on another receiver in the other ear--worked wonders and was quite simple--
 
RE: Why Even Bother…? Reply
by DJ0IP on November 29, 2017 Mail this to a friend!
Love that wife and mother-in-law reply!

And to the OM who would rather watch a screen.... buy a TV set!

I still subscribe to, you can't work em if you can't hear em!

Computer does the logging, computer runs the QSO, computer prints the QSL (or uploads eQSL). Is there anything the modern ham can do for him/her-self?
 
RE: My Idea for Listening Headphones Reply
by DJ0IP on November 29, 2017 Mail this to a friend!
If you go back to the 1980s, Ten-Tec was selling a Corsair/Corsair II which had a feature they called dual-receive receive. It was an analog radio with an external VFO. When running split, it was possible to monitor both frequencies, one in the left ear, the other in the right ear. Of course there's nothing wrong with re-inventing the wheel.

Also in contesting up until the late 1980s, it was still allowed for a multi-multi station to have a remote receive QTH. It was located outside of the city (quiet) and far enough away as to not be disturbed by the own transmitter. The main operator had stereo headphones with his hf contest frequency in one ear and a VHF link to the RX site in the other ear.

Been there, done that. And yes, we even got a T-shirt (hi). LX7A, 1989 - CQWW DX.
 
RE: My Idea for Listening Headphones Reply
by KC2MMI on November 29, 2017 Mail this to a friend!
$30-40 on Amazon, probably $10 on ebay direct from Shenzhen...
You can buy a 4-8 channel stereo mixer, that will mix 4-8 channels of audio and send them out to two channels on a stereo headset. To whichever channel/side you please.
Readymade, off the shelf. Give each of four radios a distinctly different spacial presence.(G)
 
RE: My Idea for Listening Headphones Reply
by NI0C on November 30, 2017 Mail this to a friend!
Take a look at the MFJ-640 "2 Radio Selector/Mixer." I used one for a few years with my K-2 and K-3 until I upgraded my K-3 with a second receiver.
 
Email Subscription
You are not subscribed to discussions on this article.

Subscribe!
My Subscriptions
Subscriptions Help

Other Operating Articles
Like Contacting Marconi in Morse Code
Bring Ham Radio into DMR
The 'F' is for 'Fun'