K3S Microphone Cable
Locked
 
|
I am remaking my SO2R control box cables and I need to purchase quality
microphone cable however I am not sure what to get. I am using an electret microphone. I assumed that I would need a cable with a single conductor and a shield but most mic cables that I see have two conductors. Belden has a single conductor http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c able but it's a high impendence cable and the Belden multi conductor cables are all low impendence. Does that matter? What gauge wire should I use for a 5ft cable? I would appreciate any suggested cable models or feedback. I am also having a difficult time locating brand name quality 8-pin Foster mic plugs (I prefer using the front jacks). 73, John KK9A ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
Belden has many variations for mic cable.
<https://www.belden.com/products/enterprise/broadcast-av/cable/microphone> is a quick list I found. We used something like Belden 8428 for broadcast radio work. Mark AD5SS On Mon, Jan 15, 2018 at 7:46 PM, <[hidden email]> wrote: > I am remaking my SO2R control box cables and I need to purchase quality > microphone cable however I am not sure what to get. I am using an electret > microphone. I assumed that I would need a cable with a single conductor and > a shield but most mic cables that I see have two conductors. Belden has a > single conductor > http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c > able but it's a high impendence cable and the Belden multi conductor cables > are all low impendence. Does that matter? What gauge wire should I use for a > 5ft cable? I would appreciate any suggested cable models or feedback. I am > also having a difficult time locating brand name quality 8-pin Foster mic > plugs (I prefer using the front jacks). > > 73, > > John KK9A > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by john@kk9a.com
On 1/15/2018 5:46 PM, [hidden email] wrote:
> I assumed that I would need a cable with a single conductor and > a shield but most mic cables that I see have two conductors. Belden has a > single conductor > http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c > able but it's a high impendence cable and the Belden multi conductor cables > are all low impendence. This is a VERY old (and very outdated) of mic cables, mics, and their impedance. The more important description for the cable is single conductor shielded or twisted pair shielded. In the old days, mics that used a single shielded conductor WERE high Z mics, and worked into high Z input circuits. Think guitar amps. Most modern mics are either electret condenser mics or dynamic mics, the vast majority are low impedance (150-250 ohms), and are designed to work into a load at least 5x their own output Z. Good engineering practice is for audio input Z to be at least 10x the Z of the source. Audio cables are NOT transmission lines, they are FAR, FAR, FAR too short. Virtually NO practical cables have an Zo greater than about 110 ohms. Shielded twisted pair cables designed for digital audio are nominally 110 ohms. Shielded twisted pair designed for analog audio have Zo in the range of 70 ohms. Zo matters ONLY for digital audio, which has broadband components. > Does that matter? No. > What gauge wire should I use for a 5ft cable? Cable gauge matters only for physical strength. Audio cables are typically #24 - #26. Many years ago, I found a partial spool of miniature Belden coax at a ham flea market. I use it for unbalanced (single conductor plus shield) audio patch cables. It's small enough to fit into virtually any connector you're likely to want to use and more robust than most alternatives. There's nothing wrong with using shielded twisted pair for unbalanced mics. Simply tie one conductor to the shield at both ends. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by john@kk9a.com
In my experience, the best microphone cable stock currently existing is Canare Star Quad cable.
I'm on my phone, so don't want tp peck out a complete answer here and now. Star Quad cable has 2 twisted pairs and a shield and is nice and flexible broadcast quality cable stock. Has great endurance. I use it for my microphone, key, and any other cables I can. There are at least 2 sizes now.... Get the largest wire gauge available. Consider putting some on your shelf for future use too. I use a condenser mic so my wiring may be different, but I would never use the shield as a signal wire if I wasn't forced to.... Use the twisted pairs to your advantage. Can't help on the multi-pin connectors, as I don't use it at all. But find and use the best ones tou can find. 73, ClayKY5G Sent from my Verizon, Samsung Galaxy smartphone -------- Original message --------From: [hidden email] Date: 1/15/18 19:46 (GMT-06:00) To: 'Elecraft Reflector' <[hidden email]> Subject: [Elecraft] K3S Microphone Cable I am remaking my SO2R control box cables and I need to purchase quality microphone cable however I am not sure what to get. I am using an electret microphone. I assumed that I would need a cable with a single conductor and a shield but most mic cables that I see have two conductors. Belden has a single conductor http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c able but it's a high impendence cable and the Belden multi conductor cables are all low impendence. Does that matter? What gauge wire should I use for a 5ft cable? I would appreciate any suggested cable models or feedback. I am also having a difficult time locating brand name quality 8-pin Foster mic plugs (I prefer using the front jacks). 73, John KK9A ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by john@kk9a.com
John,
For microphone wire and 8 pin plugs, check out Universal Radio https://www.universal-radio.com I have used the ultra flexible Heilwire (universal Radio #2645) and find it quite suitable with its shielded twisted pair, and they have 8 pin plugs their p/n #2112 that are quite satisfactory. 73, Don W3FPR On 1/15/2018 8:46 PM, [hidden email] wrote: > I am remaking my SO2R control box cables and I need to purchase quality > microphone cable however I am not sure what to get. I am using an electret > microphone. I assumed that I would need a cable with a single conductor and > a shield but most mic cables that I see have two conductors. Belden has a > single conductor ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by john@kk9a.com
For a reason Clay stated and that is not using the shield as a current
carrying conductor in audio, I use a 3 wire shielded cable for all my mike applications, ham radio and professional. There are several good brands, Alpha, Belden, and others. Also Heil has some cable which is suitable where audio and PTT circuits are required. A single conductor shielded cable is not suggested. As to where to find and buy a good Foster connector, I haven't found a good source. As to other connectors such as the XLR series, I find Neutrik to be the preferred brand or Amphenol as a 2nd choice. 73 Bob, K4TAX On 1/15/2018 10:16 PM, Clay Autery wrote: > In my experience, the best microphone cable stock currently existing is Canare Star Quad cable. > I'm on my phone, so don't want tp peck out a complete answer here and now. > Star Quad cable has 2 twisted pairs and a shield and is nice and flexible broadcast quality cable stock. Has great endurance. > I use it for my microphone, key, and any other cables I can. There are at least 2 sizes now.... Get the largest wire gauge available. Consider putting some on your shelf for future use too. > I use a condenser mic so my wiring may be different, but I would never use the shield as a signal wire if I wasn't forced to.... Use the twisted pairs to your advantage. > Can't help on the multi-pin connectors, as I don't use it at all. But find and use the best ones tou can find. > 73, ClayKY5G > > > Sent from my Verizon, Samsung Galaxy smartphone > -------- Original message --------From: [hidden email] Date: 1/15/18 19:46 (GMT-06:00) To: 'Elecraft Reflector' <[hidden email]> Subject: [Elecraft] K3S Microphone Cable > I am remaking my SO2R control box cables and I need to purchase quality > microphone cable however I am not sure what to get. I am using an electret > microphone. I assumed that I would need a cable with a single conductor and > a shield but most mic cables that I see have two conductors. Belden has a > single conductor > http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c > able but it's a high impendence cable and the Belden multi conductor cables > are all low impendence. Does that matter? What gauge wire should I use for a > 5ft cable? I would appreciate any suggested cable models or feedback. I am > also having a difficult time locating brand name quality 8-pin Foster mic > plugs (I prefer using the front jacks). > > 73, > > John KK9A > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
Heil has the best Foster connector. Sold in pairs. Not sure if price but very reasonable.
Sent from my iPhone ...nr4c. bill > On Jan 16, 2018, at 8:10 AM, Bob McGraw K4TAX <[hidden email]> wrote: > > For a reason Clay stated and that is not using the shield as a current carrying conductor in audio, I use a 3 wire shielded cable for all my mike applications, ham radio and professional. There are several good brands, Alpha, Belden, and others. Also Heil has some cable which is suitable where audio and PTT circuits are required. > > A single conductor shielded cable is not suggested. As to where to find and buy a good Foster connector, I haven't found a good source. As to other connectors such as the XLR series, I find Neutrik to be the preferred brand or Amphenol as a 2nd choice. > > 73 > > Bob, K4TAX > > >> On 1/15/2018 10:16 PM, Clay Autery wrote: >> In my experience, the best microphone cable stock currently existing is Canare Star Quad cable. >> I'm on my phone, so don't want tp peck out a complete answer here and now. >> Star Quad cable has 2 twisted pairs and a shield and is nice and flexible broadcast quality cable stock. Has great endurance. >> I use it for my microphone, key, and any other cables I can. There are at least 2 sizes now.... Get the largest wire gauge available. Consider putting some on your shelf for future use too. >> I use a condenser mic so my wiring may be different, but I would never use the shield as a signal wire if I wasn't forced to.... Use the twisted pairs to your advantage. >> Can't help on the multi-pin connectors, as I don't use it at all. But find and use the best ones tou can find. >> 73, ClayKY5G >> >> >> Sent from my Verizon, Samsung Galaxy smartphone >> -------- Original message --------From: [hidden email] Date: 1/15/18 19:46 (GMT-06:00) To: 'Elecraft Reflector' <[hidden email]> Subject: [Elecraft] K3S Microphone Cable >> I am remaking my SO2R control box cables and I need to purchase quality >> microphone cable however I am not sure what to get. I am using an electret >> microphone. I assumed that I would need a cable with a single conductor and >> a shield but most mic cables that I see have two conductors. Belden has a >> single conductor >> http://www.awcwire.com/mfg/belden/product/belden-high-impedance-microphone-c >> able but it's a high impendence cable and the Belden multi conductor cables >> are all low impendence. Does that matter? What gauge wire should I use for a >> 5ft ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |