K3: computer headset connection
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I'm looking for information on connecting a computer headset's boom mic to the K3 rear mic jack. I've read through the archives, but it seems the messages either refer to making connections via the front jack (with its discrete pins available), or just, "I plugged it in & it worked." I don't have my K3 yet to test with. My following questions are based on the scenario that just plugging it in doesn't work.
My mic plug is stereo, so I'm assuming its an electret. The K3's jack is mono, but apparently has a bias voltage available via the menu. I'd like to build a "dongle" (short adapter cable) to interface the mic with the jack. To preserve the headset, I don't want to modify its plug or cable. Does the bias voltage appear on the tip of the K3's jack? One archived message indicated that at least some computer mics have both the ring & tip connected together; I'm at work now & can't test mine. Would I add a resistor across the tip & ring lines, and add a small capacitor in-line from the K3's jack tip to the mic's tip to block DC? Sorry for what may be a painfully obvious set of questions, but I've never connected anything but a regular mic to a rig before. I plan on using the rear jacks to keep unnecessary cables from cluttering up the front of the rig. 73, Mike KW1ND _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: K3: computer headset connection
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[hidden email] wrote:
> I'm looking for information on connecting a computer headset's boom mic to the K3 rear mic jack. I've read through the archives, but it seems the messages either refer to making connections via the front jack (with its discrete pins available), or just, "I plugged it in & it worked." I don't have my K3 yet to test with. My following questions are based on the scenario that just plugging it in doesn't work. > > My mic plug is stereo, so I'm assuming its an electret. The K3's jack is mono, but apparently has a bias voltage available via the menu. I'd like to build a "dongle" (short adapter cable) to interface the mic with the jack. To preserve the headset, I don't want to modify its plug or cable. > > Does the bias voltage appear on the tip of the K3's jack? One archived message indicated that at least some computer mics have both the ring & tip connected together; I'm at work now & can't test mine. Would I add a resistor across the tip & ring lines, and add a small capacitor in-line from the K3's jack tip to the mic's tip to block DC? > > Sorry for what may be a painfully obvious set of questions, but I've never connected anything but a regular mic to a rig before. I plan on using the rear jacks to keep unnecessary cables from cluttering up the front of the rig. > > 73, > > Mike > KW1ND > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > I could not find out from the manual how the rear mic jack is configured ( whether bias is on tip or ring) but I just plugged in a computer mic and it works fine; and I am using a PTT foot switch. Perhaps it was just luck that the computer mic had the same setup as the K3 mic jack. It would still be nice to know how the K3 mic jack is configured for tip/ring/sleeve. Getting good audio reports with the computer mic. Dale K5AJZ _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
RE: K3: computer headset connection
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The mic jack on the RP is a stereo jack. You should use a stereo plug with
audio on the tip and ground on the sleeve...nothing on the ring. 73 Greg AB7R -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of Dale LeStourgeon Sent: Wednesday, February 06, 2008 5:23 PM To: [hidden email] Cc: elecraft Subject: Re: [Elecraft] K3: computer headset connection [hidden email] wrote: > I'm looking for information on connecting a computer headset's boom mic to the K3 rear mic jack. I've read through the archives, but it seems the messages either refer to making connections via the front jack (with its discrete pins available), or just, "I plugged it in & it worked." I don't have my K3 yet to test with. My following questions are based on the scenario that just plugging it in doesn't work. > > My mic plug is stereo, so I'm assuming its an electret. The K3's jack is mono, but apparently has a bias voltage available via the menu. I'd like to build a "dongle" (short adapter cable) to interface the mic with the jack. To preserve the headset, I don't want to modify its plug or cable. > > Does the bias voltage appear on the tip of the K3's jack? One archived message indicated that at least some computer mics have both the ring & tip connected together; I'm at work now & can't test mine. Would I add a resistor across the tip & ring lines, and add a small capacitor in-line from the K3's jack tip to the mic's tip to block DC? > > Sorry for what may be a painfully obvious set of questions, but I've never connected anything but a regular mic to a rig before. I plan on using the rear jacks to keep unnecessary cables from cluttering up the front of the rig. > > 73, > > Mike > KW1ND > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > I could not find out from the manual how the rear mic jack is configured ( whether bias is on tip or ring) but I just plugged in a computer mic and it works fine; and I am using a PTT foot switch. Perhaps it was just luck that the computer mic had the same setup as the K3 mic jack. It would still be nice to know how the K3 mic jack is configured for tip/ring/sleeve. Getting good audio reports with the computer mic. Dale K5AJZ _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: K3: computer headset connection
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On Feb 6, 2008 8:35 PM, Greg <[hidden email]> wrote:
> The mic jack on the RP is a stereo jack. You should use a stereo plug with > audio on the tip and ground on the sleeve...nothing on the ring. > > 73 > Greg > AB7R > Roger. The K3 schematic shows no connection to the ring terminal on the rear jack. And the mic bias, if selected, is applied to the line which connects to the tip. Seems like a typical sound card has five volts in the ring, and takes its input from the tip. Dave W5DHM _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Dale LeStourgeon
Well, interesting. As Greg suggested, I'll definitely try it before I worry
about wiring up an adapter. That was handy of Aptos to use a stereo jack with the ring not connected, thus keeping a stereo plug from shorting the ring to ground if the jack were mono, and yet allowing a mono plug to also work. I was trying to get a jump ahead, but I guess I'll just wait a couple more weeks and give it a try. Thanks for the responses. 73, Mike KW1ND _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Greg - AB7R
Hmmm - the Mic plug on the Elecraft ProSet-K2 is mono.
There is not 'Stereo' warning below the mic socket on the reap panel. Didn't I read that the socket was designed this way, so that a mono plug can be plugged in safely? I assume if you plug in a mono plug, the unconnected 'ring' connection on the socket just mated with the sleeve too. ProSet works just great on rear socket. On 7/2/08 01:35, "Greg" <[hidden email]> sent: > The mic jack on the RP is a stereo jack. You should use a stereo plug with > audio on the tip and ground on the sleeve...nothing on the ring. > > 73 > Greg > AB7R > > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]]On Behalf Of Dale LeStourgeon > Sent: Wednesday, February 06, 2008 5:23 PM > To: [hidden email] > Cc: elecraft > Subject: Re: [Elecraft] K3: computer headset connection > > > [hidden email] wrote: >> I'm looking for information on connecting a computer headset's boom mic to > the K3 rear mic jack. I've read through the archives, but it seems the > messages either refer to making connections via the front jack (with its > discrete pins available), or just, "I plugged it in & it worked." I don't > have my K3 yet to test with. My following questions are based on the > scenario that just plugging it in doesn't work. >> >> My mic plug is stereo, so I'm assuming its an electret. The K3's jack is > mono, but apparently has a bias voltage available via the menu. I'd like to > build a "dongle" (short adapter cable) to interface the mic with the jack. > To preserve the headset, I don't want to modify its plug or cable. >> >> Does the bias voltage appear on the tip of the K3's jack? One archived > message indicated that at least some computer mics have both the ring & tip > connected together; I'm at work now & can't test mine. Would I add a > resistor across the tip & ring lines, and add a small capacitor in-line from > the K3's jack tip to the mic's tip to block DC? >> >> Sorry for what may be a painfully obvious set of questions, but I've never > connected anything but a regular mic to a rig before. I plan on using the > rear jacks to keep unnecessary cables from cluttering up the front of the > rig. >> >> 73, >> >> Mike >> KW1ND >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> You must be a subscriber to post to the list. >> Subscriber Info (Addr. Change, sub, unsub etc.): >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/subscribers.htm >> Elecraft web page: http://www.elecraft.com >> >> > Mike, > I could not find out from the manual how the rear mic jack is configured > ( whether bias is on tip or ring) but I just plugged in a computer mic > and it works fine; and I am using a PTT foot switch. Perhaps it was just > luck that the computer mic had the same setup as the K3 mic jack. It > would still be nice to know how the K3 mic jack is configured for > tip/ring/sleeve. Getting good audio reports with the computer mic. > Dale > K5AJZ > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com -- An old miser kept a tame jackdaw, that used to steal pieces of money, and hide them in a hole, which a cat observing, asked, "Why he would hoard up those round shining things that he could make no use of?" "Why," said the jackdaw, "my master has a whole chestfull, and makes no more use of them that I do." -Jonathan Swift, satirist (1667-1745) _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Re: K3: computer headset connection
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In reply to this post by Mike B-12
To be safe you should use a stereo plug. But in actual practice a mono will work too. I have to admit...When building my Microham cable
for the K3 I jumped the gun and used a mono plug and it works fine. ------------------------- 73, Greg - AB7R Whidbey Island WA NA-065 K3#0009 On Thu Feb 7 0:59 , "David Ferrington, M0XDF" sent: >Hmmm - the Mic plug on the Elecraft ProSet-K2 is mono. >There is not 'Stereo' warning below the mic socket on the reap panel. > >Didn't I read that the socket was designed this way, so that a mono plug can >be plugged in safely? I assume if you plug in a mono plug, the unconnected >'ring' connection on the socket just mated with the sleeve too. > >ProSet works just great on rear socket. > > >On 7/2/08 01:35, "Greg" [hidden email]> sent: > >> The mic jack on the RP is a stereo jack. You should use a stereo plug with >> audio on the tip and ground on the sleeve...nothing on the ring. >> >> 73 >> Greg >> AB7R >> >> >> -----Original Message----- >> From: [hidden email] >> [[hidden email]','','','')">[hidden email]]On Behalf Of Dale LeStourgeon >> Sent: Wednesday, February 06, 2008 5:23 PM >> To: [hidden email] >> Cc: elecraft >> Subject: Re: [Elecraft] K3: computer headset connection >> >> >> [hidden email] wrote: >>> I'm looking for information on connecting a computer headset's boom mic to >> the K3 rear mic jack. I've read through the archives, but it seems the >> messages either refer to making connections via the front jack (with its >> discrete pins available), or just, "I plugged it in & it worked." I don't >> have my K3 yet to test with. My following questions are based on the >> scenario that just plugging it in doesn't work. >>> >>> My mic plug is stereo, so I'm assuming its an electret. The K3's jack is >> mono, but apparently has a bias voltage available via the menu. I'd like to >> build a "dongle" (short adapter cable) to interface the mic with the jack. >> To preserve the headset, I don't want to modify its plug or cable. >>> >>> Does the bias voltage appear on the tip of the K3's jack? One archived >> message indicated that at least some computer mics have both the ring & tip >> connected together; I'm at work now & can't test mine. Would I add a >> resistor across the tip & ring lines, and add a small capacitor in-line from >> the K3's jack tip to the mic's tip to block DC? >>> >>> Sorry for what may be a painfully obvious set of questions, but I've never >> connected anything but a regular mic to a rig before. I plan on using the >> rear jacks to keep unnecessary cables from cluttering up the front of the >> rig. >>> >>> 73, >>> >>> Mike >>> KW1ND >>> _______________________________________________ >>> Elecraft mailing list >>> Post to: [hidden email] >>> You must be a subscriber to post to the list. >>> Subscriber Info (Addr. Change, sub, unsub etc.): >>> http://mailman.qth.net/mailman/listinfo/elecraft >>> >>> Help: http://mailman.qth.net/subscribers.htm >>> Elecraft web page: http://www.elecraft.com >>> >>> >> Mike, >> I could not find out from the manual how the rear mic jack is configured >> ( whether bias is on tip or ring) but I just plugged in a computer mic >> and it works fine; and I am using a PTT foot switch. Perhaps it was just >> luck that the computer mic had the same setup as the K3 mic jack. It >> would still be nice to know how the K3 mic jack is configured for >> tip/ring/sleeve. Getting good audio reports with the computer mic. >> Dale >> K5AJZ >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> You must be a subscriber to post to the list. >> Subscriber Info (Addr. Change, sub, unsub etc.): >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/subscribers.htm >> Elecraft web page: http://www.elecraft.com >> >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> You must be a subscriber to post to the list. >> Subscriber Info (Addr. Change, sub, unsub etc.): >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/subscribers.htm >> Elecraft web page: http://www.elecraft.com > >-- >An old miser kept a tame jackdaw, that used to steal pieces of money, and >hide them in a hole, which a cat observing, asked, "Why he would hoard up >those round shining things that he could make no use of?" "Why," said the >jackdaw, "my master has a whole chestfull, and makes no more use of them >that I do." -Jonathan Swift, satirist (1667-1745) > > _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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