Re: [Flexradio] Transmit muddy audio
Richard, No problems here either. I use almost the exact same setup except I have the PR20 and I connect the output to the 4-pin mic connector in order to get PTT control from my footswitch connected to the W2IHY EQ+. >From the EQ+, the shield and PTT ground are tied together. The mic- is not connected to ground. I am using the Hosa cables from the Delta44 breakout box. I have not experimented with this, but the Delta44 has no mic preamp, so you may be having issues driving the soundcard with a dynamic mic. That is one of the reasons why I chose to use the EQ+. The other was that I can monitor myself in real time rather than using the MON feature in PowerSDR. 73 de W4TME -Tim --- Tim Ellison ( [EMAIL PROTECTED] ) Integrated Technical Services ( http://www.itsco.com ) From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ab7r Sent: Monday, November 28, 2005 11:48 PM To: Jeff Anderson; FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Transmit muddy audio Ive been using a PR40 mic via W2IHY EQ+ and get great audio reports. The cable from the EQ+ directly to input 3 of the soundcard breakout box has the mic ground and the shield tied to gether. I think on the ring but not sure, may be the sleeve. GL Greg AB7R -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Jeff Anderson Sent: Monday, November 28, 2005 4:10 PM To: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Transmit muddy audio This may not fix it, but it's very important that the Mic's PTT ground *NOT* be connected to the Mic's analog ground, otherwise, you can get some strange audio effects. You need a true four-wire connection, not 3 wires (that is, do not tie the two grounds together). Also - if not already done, verify that the mics are correctly connected to the 4-pin connector. 73, - Jeff, WA6AHL richard brossard [EMAIL PROTECTED] wrote: Hello All , Am running a flex with d 44 sound card ,compact computer amd 64 3500 plus 512 mem and have tried all the software including the beta and have muddy mid range audio with leading edge keying spike that trips the amp instantly . I have tried several mikes a shure dynamic and an md100 to no avail . I notice the rf output also runs way up then way down in output . The mike's i use are perfect with my 1000 d , 1000 mp , ts 2000 , pro , and orion so they should be even better with the ability of the flex to eq . The reciever is fantastic much better to listen to than the orion . Any ideas what i'm doing wrong . [EMAIL PROTECTED] __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz smime.p7s Description: S/MIME cryptographic signature
Re: [Flexradio] Transmit muddy audio
The situation may be different when using an external preamp. To get my unit on the air quickly after it arrived, I had grabbed an old hand-held mic from my "box-a-mics" that had the correct 4-pin connector and that keyed the radio when I pressed PTT. Although the mic's stock wiring "worked" (it's an old Drake hand-held model witha 4-pin connector), I hadproblems with echo, weird periodic"ticks" in the audio, etc., until I finally bit the bullet, disassembled the connector, and then wired it per the SDR1Kdiagram. Also, because of the low-signal levels of many non-amplified mics, digital noise that's introduced into the audio path due to the ground-loop formed when connecting the PTT gnd tomic(-)can benoticable when you increase mic gain to a useul level and then monitor the audio input at the SDR1K. At least, this noise was certainlynoticable on my unit, and disappeared when I seperated the gnds. And with the mic correctly wired, I've consistenly received very good audio reports. So, my recommendation is...if in doubt, first verify mic wiring. 73, - Jeff, WA6AHLTim Ellison [EMAIL PROTECTED] wrote: Richard, No problems here either. I use almost the exact same setup except I have the PR20 and I connect the output to the 4-pin mic connector in order to get PTT control from my footswitch connected to the W2IHY EQ+. From the EQ+, the shield and PTT ground are tied together. The mic- is not connected to ground. I am using the Hosa cables from the Delta44 breakout box. I have not experimented with this, but the Delta44 has no mic preamp, so you may be having issues driving the soundcard with a dynamic mic. That is one of the reasons why I chose to use the EQ+. The other was that I can monitor myself in real time rather than using the MON feature in PowerSDR. 73 de W4TME -Tim --- Tim Ellison ( [EMAIL PROTECTED] ) Integrated Technical Services ( http://www.itsco.com ) From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ab7rSent: Monday, November 28, 2005 11:48 PMTo: Jeff Anderson; FlexRadio@flex-radio.bizSubject: Re: [Flexradio] Transmit muddy audio Ive been using a PR40 mic via W2IHY EQ+ and get great audio reports. The cable from the EQ+ directly to input 3 of the soundcard breakout box has the mic ground and the shield tied to gether. I think on the ring but not sure, may be the sleeve. GL Greg AB7R -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Jeff AndersonSent: Monday, November 28, 2005 4:10 PMTo: FlexRadio@flex-radio.bizSubject: Re: [Flexradio] Transmit muddy audio This may not fix it, but it's very important that the Mic's PTT ground *NOT* be connected to the Mic's analog ground, otherwise, you can get some strange audio effects. You need a true four-wire connection, not 3 wires (that is, do not tie the two grounds together). Also - if not already done, verify that the mics are correctly connected to the 4-pin connector. 73, - Jeff, WA6AHLrichard brossard [EMAIL PROTECTED] wrote: Hello All ,Am running a flex with d 44 sound card ,compactcomputer amd 64 3500 plus 512 mem and have tried allthe software including the beta and have muddy midrange audio with leading edge keying spike that tripsthe amp instantly . I have tried several mikes a shuredynamic and an md100 to no avail . I notice the rfoutput also runs way up then way down in output . Themike's i use are perfect with my 1000 d , 1000 mp , ts2000 , pro , and orion so they should be even betterwith the ability of the flex to eq . The reciever isfantastic much better to listen to than the orion . Any ideas what i'm doing wrong . [EMAIL PROTECTED] __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/___FlexRadio mailing listFlexRadio@flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz___FlexRadio mailing listFlexRadio@flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Transmit muddy audio
Jeff Anderson wrote: The situation may be different when using an external preamp. To get my unit on the air quickly after it arrived, I had grabbed an old hand-held mic from my box-a-mics that had the correct 4-pin connector and that keyed the radio when I pressed PTT. Although the mic's stock wiring worked (it's an old Drake hand-held model with a 4-pin connector), I had problems with echo, weird periodic ticks in the audio, etc., until I finally bit the bullet, disassembled the connector, and then wired it per the SDR1K diagram. Also, because of the low-signal levels of many non-amplified mics, digital noise that's introduced into the audio path due to the ground-loop formed when connecting the PTT gnd to mic(-) can be noticable when you increase mic gain to a useul level and then monitor the audio input at the SDR1K. At least, this noise was certainly noticable on my unit, and disappeared when I seperated the gnds. And with the mic correctly wired, I've consistenly received very good audio reports. So, my recommendation is...if in doubt, first verify mic wiring. I wired up an old, cheap CB desk microphone, according to the drawing, figuring I might get a better mike later. I used the Equalizer to cut down highs, and peaked aroung 1000 Hz. Anyway, I got OUTSTANDING audio reports. The guys on my MARS nets commented that my audio was better than they ever heard it. So I guess it works. -- _ _ _ _ _ / \ / \ / \ / \ / \ John L. Sielke ( W ) ( 2 ) ( A ) ( G ) ( N ) http://w2agn.net \_/ \_/ \_/ \_/ \_/ CRUSTY OLD CURMUDGEON - AND PROUD OF IT!
[Flexradio] Transmit muddy audio
Hello All , Am running a flex with d 44 sound card ,compact computer amd 64 3500 plus 512 mem and have tried all the software including the beta and have muddy mid range audio with leading edge keying spike that trips the amp instantly . I have tried several mikes a shure dynamic and an md100 to no avail . I notice the rf output also runs way up then way down in output . The mike's i use are perfect with my 1000 d , 1000 mp , ts 2000 , pro , and orion so they should be even better with the ability of the flex to eq . The reciever is fantastic much better to listen to than the orion . Any ideas what i'm doing wrong . [EMAIL PROTECTED] __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/
Re: [Flexradio] Transmit muddy audio
This may not fix it, but it's very important that the Mic's PTT ground *NOT* be connected to the Mic's analog ground, otherwise, you can get some strange audio effects. You need a true four-wire connection, not 3 wires (that is, do not tie the two grounds together). Also - if not already done, verify that the mics are correctly connected to the 4-pin connector. 73, - Jeff, WA6AHLrichard brossard [EMAIL PROTECTED] wrote: Hello All ,Am running a flex with d 44 sound card ,compactcomputer amd 64 3500 plus 512 mem and have tried allthe software including the beta and have muddy midrange audio with leading edge keying spike that tripsthe amp instantly . I have tried several mikes a shuredynamic and an md100 to no avail . I notice the rfoutput also runs way up then way down in output . Themike's i use are perfect with my 1000 d , 1000 mp , ts2000 , pro , and orion so they should be even betterwith the ability of the flex to eq . The reciever isfantastic much better to listen to than the orion . Any ideas what i'm doing wrong . [EMAIL PROTECTED] __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/___FlexRadio mailing listFlexRadio@flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Transmit muddy audio
Ive been using a PR40 mic via W2IHY EQ+ and get great audio reports. The cable from the EQ+ directly to input 3 of the soundcard breakout box has the mic ground and the shield tied to gether. I think on the ring but not sure, may be the sleeve. GL Greg AB7R -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Jeff AndersonSent: Monday, November 28, 2005 4:10 PMTo: FlexRadio@flex-radio.bizSubject: Re: [Flexradio] Transmit muddy audio This may not fix it, but it's very important that the Mic's PTT ground *NOT* be connected to the Mic's analog ground, otherwise, you can get some strange audio effects. You need a true four-wire connection, not 3 wires (that is, do not tie the two grounds together). Also - if not already done, verify that the mics are correctly connected to the 4-pin connector. 73, - Jeff, WA6AHLrichard brossard [EMAIL PROTECTED] wrote: Hello All ,Am running a flex with d 44 sound card ,compactcomputer amd 64 3500 plus 512 mem and have tried allthe software including the beta and have muddy midrange audio with leading edge keying spike that tripsthe amp instantly . I have tried several mikes a shuredynamic and an md100 to no avail . I notice the rfoutput also runs way up then way down in output . Themike's i use are perfect with my 1000 d , 1000 mp , ts2000 , pro , and orion so they should be even betterwith the ability of the flex to eq . The reciever isfantastic much better to listen to than the orion . Any ideas what i'm doing wrong . [EMAIL PROTECTED] __ Yahoo! Music Unlimited Access over 1 million songs. Try it free. http://music.yahoo.com/unlimited/___FlexRadio mailing listFlexRadio@flex-radio.bizhttp://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
