Heil Proset Plus and K3
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Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element with their K3? How did it play? I understand that a Heil Kenwood adaptor (red) is needed to interface with the 8-pin microphone connector on the front of the K3. Is rewiring of the 8-pin Kenwood connector required? Advice/comments regarding setup appreciated.
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I just plug mine (the Proset from Elecraft, with two 1/8 plugs) into
the back of the rig, and run from there. Dave Wilburn K4DGW K2/100 - S/N 5982 K3/100 - S/N 766 "For those who fought for it, freedom has a flavor the protected will never know." John AK4Z wrote: > Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element > with their K3? How did it play? I understand that a Heil Kenwood adaptor > (red) is needed to interface with the 8-pin microphone connector on the > front of the K3. Is rewiring of the 8-pin Kenwood connector required? > Advice/comments regarding setup appreciated. _______________________________________________ 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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On Thu, 15 May 2008 17:03:58 -0400, Dave Wilburn wrote:
>I just plug mine (the Proset from Elecraft, with two 1/8 plugs) into >the back of the rig, and run from there. > > > >K4DGW >K2/100 - S/N 5982 >K3/100 - S/N 766 > >"For those who fought for it, freedom has a flavor the protected will >never know." > I use mine that way too. It works great. Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ 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
Amateur Radio Operator N5GE
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This thread originally was focused on the IC (electret) version of the
Proset Plus. I was thinking of getting the normal (dynamic) version and plugging it into the connectors on the back. So humor this basic question from a CW guy. Is there any advantage to the electret version assuming I have no other rig that needs it? The dynamic version is less expensive. 73 ... Craig AC0DS _______________________________________________ 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: Heil Proset Plus and K3
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In reply to this post by John AK4Z
I am using the Proset marked "IC" which came from Elecraft with my new K3.
Inside the instructions said it was for the K2 but I think that was printed before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It works fine plugged into the front mike connector with the mike bias turned on. Currently the bias is set to high but I understand it will also work with the bias set to low. Bruce - W8FU -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of John AK4Z Sent: Thursday, May 15, 2008 4:31 PM To: [hidden email] Subject: [Elecraft] Heil Proset Plus and K3 Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element with their K3? How did it play? I understand that a Heil Kenwood adaptor (red) is needed to interface with the 8-pin microphone connector on the front of the K3. Is rewiring of the 8-pin Kenwood connector required? Advice/comments regarding setup appreciated. -- View this message in context: http://www.nabble.com/Heil-Proset-Plus-and-K3-tp17261851p17261851.html Sent from the Elecraft mailing list archive at Nabble.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 -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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 Craig Smith
Craig D. Smith wrote:
> This thread originally was focused on the IC (electret) version of the > Proset Plus. I was thinking of getting the normal (dynamic) version and > plugging it into the connectors on the back. So humor this basic question > from a CW guy. Is there any advantage to the electret version assuming I > have no other rig that needs it? The dynamic version is less expensive. Well, I haven't tried the electret version but I have the dynamic Proset 5 and it works fine (at least, for the few SSB QSOs I felt obligated to make as a beta tester). -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ 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 Bruce McLaughlin-2
Wow. It would be interesting to know how that managed to work. The IC means
the headset is wired for ICOM then with a Kenwood adapter to an Elecraft mic. jack with the bias on the wrong pin. (8) instead of (5) as etc. I'm glad it works but not sure why. Steve Ellington [hidden email] ----- Original Message ----- From: "Bruce McLaughlin" <[hidden email]> To: "'John AK4Z'" <[hidden email]>; <[hidden email]> Sent: Thursday, May 15, 2008 6:43 PM Subject: RE: [Elecraft] Heil Proset Plus and K3 >I am using the Proset marked "IC" which came from Elecraft with my new K3. > Inside the instructions said it was for the K2 but I think that was > printed > before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It > works fine plugged into the front mike connector with the mike bias turned > on. Currently the bias is set to high but I understand it will also work > with the bias set to low. > > Bruce - W8FU > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of John AK4Z > Sent: Thursday, May 15, 2008 4:31 PM > To: [hidden email] > Subject: [Elecraft] Heil Proset Plus and K3 > > > Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element > with their K3? How did it play? I understand that a Heil Kenwood adaptor > (red) is needed to interface with the 8-pin microphone connector on the > front of the K3. Is rewiring of the 8-pin Kenwood connector required? > Advice/comments regarding setup appreciated. > -- > View this message in context: > http://www.nabble.com/Heil-Proset-Plus-and-K3-tp17261851p17261851.html > Sent from the Elecraft mailing list archive at Nabble.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 > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: > 5/15/2008 > 7:25 PM > > > _______________________________________________ > 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 -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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 Bruce McLaughlin-2
Hi Bruce:
The High (H) and Low (L) refer to the gain in the circuit, not the bias level. Tap the display button when you are in the MAIN: MIC SEL mode to read what the "help file" says. 73, Ken K3IU Bruce McLaughlin wrote: > I am using the Proset marked "IC" which came from Elecraft with my new K3. > Inside the instructions said it was for the K2 but I think that was printed > before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It > works fine plugged into the front mike connector with the mike bias turned > on. Currently the bias is set to high but I understand it will also work > with the bias set to low. > > Bruce - W8FU > Advice/comments regarding setup appreciated. > 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: Heil Proset Plus and K3
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In reply to this post by N4LQ-2
This only a guess but I wonder if Heil pulled a trick with the short red
adaptor destined for use on the K2/K3. Maybe they did a wiring switch in the adaptor to make it compatible. I remember, the "standard" mike wiring for the K2 is the Kenwood standard, although, other configurations could be chosen when the mike connector was wired during construction. I remember wiring my K2/100 for the Kenwood standard and everything worked. I used the Elecraft supplied Heil hand mike which is an electret. Heil told me that their dynamic mikes would work fine with the K3 and Kenwood cable. They also said that it made no difference whether the rig bias was on or off because they used a resistor to block the unneeded bias which would also protect the rig. I intend to try my Gold line and PR 40 mikes in the future with the K3 using a Kenwood cable but with no bias just to be sure! However, electret mikes such as the Proset are another kettle of fish. All I really know is the red adaptor which came with the Elecraft supplied Proset works fine with the K3. Perhaps it would be worthwhile to give Heil a call for a better explanation. Bruce - W8FU -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of n4lq Sent: Thursday, May 15, 2008 6:56 PM To: Bruce McLaughlin; 'John AK4Z'; [hidden email] Subject: Re: [Elecraft] Heil Proset Plus and K3 Wow. It would be interesting to know how that managed to work. The IC means the headset is wired for ICOM then with a Kenwood adapter to an Elecraft mic. jack with the bias on the wrong pin. (8) instead of (5) as etc. I'm glad it works but not sure why. Steve Ellington [hidden email] ----- Original Message ----- From: "Bruce McLaughlin" <[hidden email]> To: "'John AK4Z'" <[hidden email]>; <[hidden email]> Sent: Thursday, May 15, 2008 6:43 PM Subject: RE: [Elecraft] Heil Proset Plus and K3 >I am using the Proset marked "IC" which came from Elecraft with my new K3. > Inside the instructions said it was for the K2 but I think that was > printed > before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It > works fine plugged into the front mike connector with the mike bias turned > on. Currently the bias is set to high but I understand it will also work > with the bias set to low. > > Bruce - W8FU > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of John AK4Z > Sent: Thursday, May 15, 2008 4:31 PM > To: [hidden email] > Subject: [Elecraft] Heil Proset Plus and K3 > > > Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element > with their K3? How did it play? I understand that a Heil Kenwood adaptor > (red) is needed to interface with the 8-pin microphone connector on the > front of the K3. Is rewiring of the 8-pin Kenwood connector required? > Advice/comments regarding setup appreciated. > -- > View this message in context: > http://www.nabble.com/Heil-Proset-Plus-and-K3-tp17261851p17261851.html > Sent from the Elecraft mailing list archive at Nabble.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 > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: > 5/15/2008 > 7:25 PM > > > _______________________________________________ > 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 ---------------------------------------------------------------------------- ---- No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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: Heil Proset Plus and K3
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In reply to this post by Vic K2VCO
Well, I don't know. I also have a non electret version which I use with my
FT 1000D. Maybe it would be interesting to try it on the K3 with the bias turned off just in case. I suspect the gain might be lower but I would be mainly concerned about whether it might short something that shouldn't be shorted. I don't recall whether the non-electret Proset came with a connector schematic or not. Maybe someone else on the forum has already tried this with the K3. If so and the radio is still working I guess that would be reassuring. Bruce - W8FU -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Vic K2VCO Sent: Thursday, May 15, 2008 6:47 PM To: [hidden email] Cc: [hidden email] Subject: Re: [Elecraft] Heil Proset Plus and K3 Craig D. Smith wrote: > This thread originally was focused on the IC (electret) version of the > Proset Plus. I was thinking of getting the normal (dynamic) version and > plugging it into the connectors on the back. So humor this basic question > from a CW guy. Is there any advantage to the electret version assuming I > have no other rig that needs it? The dynamic version is less expensive. Well, I haven't tried the electret version but I have the dynamic Proset 5 and it works fine (at least, for the few SSB QSOs I felt obligated to make as a beta tester). -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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 N4LQ-2
Steve,
The subject of electret mic bias has come up before, and your statements below are incorrect -- Please look at the microphone connector in the manual (page 13), and interpret the designation for pin 6 literally. It is *not* marked "bias", it is designated "+8 V (10 ma max)". "Bias" is what is applied to the microphone element - and that is accomplished by adding a DC voltage onto the AF line - pin 1. That is quite different than a raw source of +8V. The Heil Kenwood adapter has no connection to either pins 5 or 6. The Heil Kenwood adapter connects the mic element to pin 1, and the K3 applies bias to pin 1 if the menu is set correctly. 73, Don W3FPR n4lq wrote: > Wow. It would be interesting to know how that managed to work. The IC > means the headset is wired for ICOM then with a Kenwood adapter to an > Elecraft mic. jack with the bias on the wrong pin. (8) instead of (5) > as etc. > I'm glad it works but not sure why. > > Steve Ellington > _______________________________________________ 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 Bruce McLaughlin-2
Bruce,
The High and Low in the K3 microphone menu refers to the microphone gain range and has no relationship to the "bias". The bias voltage for the front panel jack is sourced from +5 volts while the rear panel jack is sourced from +8 volts. Most electret mics will work with either voltage. 73, Don W3FPR Bruce McLaughlin wrote: > I am using the Proset marked "IC" which came from Elecraft with my new K3. > Inside the instructions said it was for the K2 but I think that was printed > before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It > works fine plugged into the front mike connector with the mike bias turned > on. Currently the bias is set to high but I understand it will also work > with the bias set to low. > > Bruce - W8FU > > 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: Heil Proset Plus and K3
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In reply to this post by Ken Wagner K3IU
Yep. Don explained that and it makes sense. I don't know why anyone would
want to vary the bias but then again, some folks like to be different. I'm still having a little trouble interpreting some of the menus. I tend to read them quite literally. Bruce - W8FU -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Ken K3IU Sent: Thursday, May 15, 2008 7:05 PM To: Bruce McLaughlin Cc: [hidden email] Subject: Re: [Elecraft] Heil Proset Plus and K3 Hi Bruce: The High (H) and Low (L) refer to the gain in the circuit, not the bias level. Tap the display button when you are in the MAIN: MIC SEL mode to read what the "help file" says. 73, Ken K3IU Bruce McLaughlin wrote: > I am using the Proset marked "IC" which came from Elecraft with my new K3. > Inside the instructions said it was for the K2 but I think that was printed > before the K3 was around. It has a short Kenwood (red) 8 pin adaptor. It > works fine plugged into the front mike connector with the mike bias turned > on. Currently the bias is set to high but I understand it will also work > with the bias set to low. > > Bruce - W8FU > Advice/comments regarding setup appreciated. > _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1445 - Release Date: 5/15/2008 7:25 PM _______________________________________________ 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 Bruce McLaughlin-2
On Thu, 15 May 2008 19:07:12 -0400, you wrote:
>This only a guess but I wonder if Heil pulled a trick with the short red >adaptor destined for use on the K2/K3. Maybe they did a wiring switch in >the adaptor to make it compatible. I remember, the "standard" mike wiring >for the K2 is the Kenwood standard, although, other configurations could be >chosen when the mike connector was wired during construction. I remember >wiring my K2/100 for the Kenwood standard and everything worked. I used the >Elecraft supplied Heil hand mike which is an electret. > >Heil told me that their dynamic mikes would work fine with the K3 and >Kenwood cable. They also said that it made no difference whether the rig >bias was on or off because they used a resistor to block the unneeded bias >which would also protect the rig. I intend to try my Gold line and PR 40 >mikes in the future with the K3 using a Kenwood cable but with no bias just >to be sure! However, electret mikes such as the Proset are another kettle >of fish. All I really know is the red adaptor which came with the Elecraft >supplied Proset works fine with the K3. Perhaps it would be worthwhile to >give Heil a call for a better explanation. > The Red banded mike cords from Heil are for Kenwood rigs. I've used the Pro-Set Plus! and GoldLine both with KWD and Yaesu rigs. The Yaesu cords are Yellow banded. [snip] Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ 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
Amateur Radio Operator N5GE
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In reply to this post by Craig Smith
I didn't know the answer either, so I googled it. Since I do not know
anything about the difference, I am reading these too. Not sure how useful they are. http://en.wikipedia.org/wiki/Microphone http://www.pmiaudio.com/forums/archive/index.php/t-27.html Dave Wilburn K4DGW K2/100 - S/N 5982 K3/100 - S/N 766 "For those who fought for it, freedom has a flavor the protected will never know." Craig D. Smith wrote: > This thread originally was focused on the IC (electret) version of the > Proset Plus. I was thinking of getting the normal (dynamic) version and > plugging it into the connectors on the back. So humor this basic question > from a CW guy. Is there any advantage to the electret version assuming I > have no other rig that needs it? The dynamic version is less expensive. > > 73 > ... Craig AC0DS > > > > _______________________________________________ > 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 |
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In reply to this post by Bruce McLaughlin-2
> .. Currently the bias is set to high but I understand it will also work
> with the bias set to low. Just a minor point. The Mic Gain ".H" and ".L" refer to the overall gain of the mic amplifier system, not the bias voltage. .H is used for lower output microphones, like the HC-4 and HC-5 dynamic elements. The 'L is more useful for high output microphones, such as most electrets. Enjoy! 73, Lyle KK7P _______________________________________________ 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 dave.wilburn
Dave,
While reading those references, keep in mind that they refer to pro-audio microphones, which can be a bit different in their connections and usage than mics used by hams (and consumer devices). For instance, the pro mics are typically balanced line output, and any 'bias' required (often called phantom voltage) is applied between *both* balanced line connectors and the mic cable shield. The articles are informative, but only apply partly to the microphones we see in ham radio service. For instance, the article will say that the basic electret element does not need any bias voltage - that is true - but the implementation used in amateur microphones, the element typically used contains an FET preamplifier as part of the 'element' that you purchase. That preamplifier does need the bias power. The basic electret element (without the preamp) has very very low level output and would be unusable to directly drive a transceiver. The terminology can get confusing, but is important for understanding the subject. 73, Don W3FPR David Wilburn wrote: > I didn't know the answer either, so I googled it. Since I do not know > anything about the difference, I am reading these too. Not sure how > useful they are. > > http://en.wikipedia.org/wiki/Microphone > > http://www.pmiaudio.com/forums/archive/index.php/t-27.html > > Dave Wilburn > 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 N5GE
Hi all
Back when I had just assembled my K3 (that was in January, has it been that long? Time sure flies when you're having fun, hi) I had my Proset Plus connected to the K3 using a standard Kenwood adapter (the one with a red marking). Only after a few minutes did I realize that I had forgotten to turn off the bias voltage. No harm was done however and everything is still working FB to this day. Hope this helps 73 Glenn ON4WIX ----- Original Message ----- From: "Tom Childers, N5GE" <[hidden email]> To: "Bruce McLaughlin" <[hidden email]> Cc: <[hidden email]> Sent: Friday, May 16, 2008 1:55 AM Subject: Re: [Elecraft] Heil Proset Plus and K3 On Thu, 15 May 2008 19:07:12 -0400, you wrote: >This only a guess but I wonder if Heil pulled a trick with the short red >adaptor destined for use on the K2/K3. Maybe they did a wiring switch in >the adaptor to make it compatible. I remember, the "standard" mike wiring >for the K2 is the Kenwood standard, although, other configurations could be >chosen when the mike connector was wired during construction. I remember >wiring my K2/100 for the Kenwood standard and everything worked. I used >the >Elecraft supplied Heil hand mike which is an electret. > >Heil told me that their dynamic mikes would work fine with the K3 and >Kenwood cable. They also said that it made no difference whether the rig >bias was on or off because they used a resistor to block the unneeded bias >which would also protect the rig. I intend to try my Gold line and PR 40 >mikes in the future with the K3 using a Kenwood cable but with no bias just >to be sure! However, electret mikes such as the Proset are another kettle >of fish. All I really know is the red adaptor which came with the Elecraft >supplied Proset works fine with the K3. Perhaps it would be worthwhile to >give Heil a call for a better explanation. > The Red banded mike cords from Heil are for Kenwood rigs. I've used the Pro-Set Plus! and GoldLine both with KWD and Yaesu rigs. The Yaesu cords are Yellow banded. [snip] Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ 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 -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1433 - Release Date: 14/05/2008 16:44 _______________________________________________ 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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