[digitalradio] Re: I, am a Pactor Robot............
Yes, that can happen to transmitters in general, on any mode. But, as long as an operator is sitting there doing the control of the transmission, he is capable of immediately knowing what is happening. For instance: I come up on a freq, in SSB, and listen. Hearing nothing, I ask twice if the frequnecy is busy. Either someone responds, or they dont. If they do, I go elsewhere, find another freq and ask again. If no one responds, then I can reasonably be insured I am not going to interfere by calling CQ or call my scheduled partner.The Pactor, or any other automated station, without a control operator is not able to do that. It cant come up and ask if the freq is clear or not. I am also reasonably sure that most Pactor (read - automatic stations - because there are certainly other such modes) operators who want keyboard to keyboard QSOs, DO listen. I am not sure that they ever first go to SSB and ask if the frequency is clear or not. Asking in the Pactor mode, would probably not get much response from SSB or other mode operators who would immediately think that you had just come up automatically to operator. They wouldnt know the difference, not being able to copy it. Here, we might take a look at SSTV operators, who generally do just that. We come up on SSB, ask if the freq is clear, wait a few moments, ask again, and hearing nothing, will either call a CQ on SSB stating we are looking for an SSTV contact, or we might just, at that time, immeidately transmit a CQ via SSTV. Either way, we should first insure (via SSB) that no one is using the freq. (The old hidden transmitter syndrome). Your second paragraph would be covered if the software is correctly written and used. It would have manual bypass which would allow you, as a control operator sitting in place, to bypass the busy guard in order to transmit and check for an ongoing QSO. I think this is how the original busy guard was written, and as explained to me. Third paragraph: same as second, with the bypass capability. I understand your thinking, or at least think I do. HI But, I believe what it comes down to, is without adopting the busy guard, the powers that be in the auto digitial world are going to find more and more resistance from the rest of us, and eventually the FCC is going to have to step in and make a decision. I dont think that the digital world wants that. They certainly dont need that, and can prevent it by quickly adopting the busy guard capability. I also think they are pushing to avoid the busy guard, by ignoring it at this point, hoping it will go away. After all, who wants to be told Yes- the frequency is busy. I personally think there is a place for automatic transmission on guard sites. I would envision such to exist on every ham band, where I or any other operator could go, immediately connect up, and report an emergency situation. That way, whether sailing or driving an RV, or sitting at home with the phones out, I could get someones immediate attention for sickness, accidents, etc. But those should not spread over large sections of any band, or be in the middle of an ongoing conversation. Easily avoided, by strict adherence of, not a band-plan, but a specific assigned frequency, and to be used ONLY for emergencies. Other than that, such transmission modes should be used, as are any others, with a control operator and for keyboard to keyboard operaton. I really dont see where we have either the spectrum or the necessity to turn ham radio into a common carrier operation. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do.
[digitalradio] Re: I, am a Pactor Robot............
Jack, I think I answered most of that just now, to another station. As long as you are setting there, and have checked that the freq is clear, fire away. If then you get someone coming in and connecting, you have already checked the frequency, so go ahead with your contact. But, if he hears you, transmits and then finds HE is causing interference, he should immediatly advise you, and quit tranmitting at his end. Just like SSB, I ask if its clear, and no one comes back, I transmit a CQ. Sonmeone answers, but he immediately is told the freq is busy. He quickly comes back and tell you and the two of you then slip to another freq, where both ask if its clear, and if so, have your contact. Bye the way, if both of you had busy signal capability, his would have immediately told him he couldnt transmit-- but I would hope he would have heard it on the earphones before that, or seen it on a waterfall, or something. Surely all stations do check the freq before transmitting, keyboard to keyboard? He could then simply bypass the busy signal detect, and quickly advise you to QSY to for a QSO. No not asking for perfection, just an attempt to get as close as possible. I know - easier said than done - but that takes place hundreds of times a day on CW or SSB, and is doable. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do.
Re: [digitalradio] calling CQ
On my 2nd call of CQ when the rig un-keyed after the CW ID there was N4X something or-other calling CQ with HELL. I did not have to tune a bit to copy him. Just plug the audio into the laptop. At that point I called it a night and went up front to the living room to read a bit. John At 11:03 PM 1/16/2008, you wrote: Hey John, Been listening, John. Didn't hear a peep from out your way. I was copying some 5s and 7s on PSK on 7.070 area, perhaps it's simply the propogation beast that's at fault.
[digitalradio] Fw: APRS W9YJ-11 Near Space balloon experiment (time critical)
- Forwarded Message From: Patrick Ryan KC6VVT [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, January 17, 2008 1:15:36 PM Subject: [illinoisdigitalham] APRS W9YJ-11 Near Space balloon experiment (time critical) Currently tracking a balloon carrying APRS over Canada launched earlier today from a school near Terra Haute Indiana. Current position reported: http://www.findu.com/cgi-bin/find.cgi?call=W9YJ-11 For a complete track, and to follow progress, see http://aprs.fi/ and log in, then track W9YJ-11 over last 6 hours. For launch information, see http://www.ARHAB.org AMATEUR RADIO HIGH ALTITUDE BALLOONING LAUNCH ANNOUNCEMENTS Update #617 : Wednesday 16Jan08 14:00UT BASE-20 Logged this flight on my APRS terminal from NC IL while near Toledo, OH. Enjoy -- R. Patrick Ryan ARS: KC6VVT [EMAIL PROTECTED] Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
[digitalradio] RFSM8000
at 20:00Z Beaconing 14103.0 RFSM8000, non-standard modulation , 60sec intervals, for the next 2 hours John VE5MU
Re: [digitalradio] Re: I, am a Pactor Robot............
At 01:07 AM 1/18/2008, Danny wrote: See interspaced comments. Jack, I think I answered most of that just now, to another station. As long as you are setting there, and have checked that the freq is clear, fire away. If then you get someone coming in and connecting, you have already checked the frequency, so go ahead with your contact. But, if he hears you, transmits and then finds HE is causing interference, he should immediatly advise you, and quit tranmitting at his end. By the time he has connected and this text exchange takes place, with a TX/RX changeover, it could be 30 secondswhich is a long time. Just like SSB, I ask if its clear, and no one comes back, I transmit a CQ. Sonmeone answers, but he immediately is told the freq is busy. He quickly comes back and tell you and the two of you then slip to another freq, where both ask if its clear, and if so, have your contact. How do you ask IF the freq is clear in Pactor and expect any other modes, even Pactor to say yes, freq is in use? And get a readable response? Bye the way, if both of you had busy signal capability, his would have immediately told him he couldnt transmit-- but I would hope he would have heard it on the earphones before that, or seen it on a waterfall, or something. Surely all stations do check the freq before transmitting, keyboard to keyboard? He could then simply bypass the busy signal detect, and quickly advise you to QSY to for a QSO. A busy signal from what mode? Again, decoding who or what is there is not easy, Pactor hardware has no waterfall, you do not know what signal is there, unless your well calibrated ears interfaced to your brain, can understand what mode is transmitting, it may even only be an ALE sounding? Who knows? No not asking for perfection, just an attempt to get as close as possible. I know - easier said than done - but that takes place hundreds of times a day on CW or SSB, and is doable. 2 modes, the ears can decode very easily, Tx with Mic or Keydigital modes are a little different, particularly those that are hardware/firmware based. When someone comes up with a piece of software that is a simple decode only program for ALL digital modes, it would give listen and identify signal, before using freq, things may get better, but still not perfect as you would need a full blown laptop to run it. When some Pactor and Packet (some PSK31) operators can even use a dumb terminal to drive their Pactor/Packet/PSK31 hardware. 73s Jack VK4JRC
Re: [digitalradio] RFSM8000
Cool , I will listen for you , but I don't expect anything . The band seem to be dead here in Norway now. 73 de LA5VNA Steinar John Bradley skrev: at 20:00Z Beaconing 14103.0 RFSM8000, non-standard modulation , 60sec intervals, for the next 2 hours John VE5MU
Re: [digitalradio] Re: I, am a Pactor Robot............
Pretty confusing indeed. As Jack says, you never know when someone will connect. Have any of the proponents been a sysop? I guess they have not. TIS Software would have to be rewritten, so an incoming call rings a bell, turns on a lamp, awakens the dogs and let'em out, something that lets the sysop know his box is being called, listens between packets and authorizes the connection in a timely fashion. As far as I know, such a software has not been written, but would be interesting to hear about prospective programers to solve that problem for us. There are already at least two tasks to be done: A busy detector and a sysop awakener. Any volunteers to get the things well done? At least, an API with the calls and procedures is needed, in order to encourage other software developers to join the effort in a structured, well thought fashion. Also, a legal advice could be displayed, warning the sysop that any QRM originated by his allowance to answer a call can be used against him/her. Or keep on the fundamentalistic, taliban aproach: criticize, criticize, stir the pot, do nothing else and get such activity forbidden. This seems to be a LOT simpler. So far, as I see, only the taliban approach is showing any progress. /TIS 73, Jose, CO2JA --- Jack Chomley escribió: At 01:14 PM 1/17/2008, Danny wrote: Jack. We on the other side see THAT as exactly the problem. Your mailbox sits there silent. Somone else gets on the freq and calls it. It comes up - and causes interference to someone else that is already using the freq (which you would have heard if you were physically sitting there operating). The origninal caller to you, because of propagation, did not hear the other ongoing QSO- but YOU would have. Therefore it is your transmitter that caused the interference. All quite easily taken care of if our software had a busy signal capability, and simply didnt respond to the other guy, while other signals were up and on the air. That software has been written, and from my understanding would be made available to the Pactor software people, if they would just accept it. If its been done, other software writers can do the same. Your mailbox needs to be controlled by YOU, not the other end, as long as there is no busy signal detection. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do. Well, even IF I am at the keyboard, I do not know IF someone is about to connect.until they do. When that happens, do I just switch the box off? Yep, I could do that and the station at the other end would scratch his head and wonder what is going on, like he connected and next minute he is cut off by me. If it was me trying to connect.then I would keep trying, just like he would. Looking for contacts in this hobby, is what its all about. I mean, this kind of operation was done on HF Packet for many years, BBSs forwarded on frequencies and everyone simply got along, generally :-) A busy signal scheme will only work while there is a signal present, the moment there is a break in the signal being heard, the busy detect would drop and.the station would fire up, unless the busy detect had a timer, which counted x time after loss of heard signal, before the station transmitted. Danny, I think you are asking for a perfect solution, when given all the modes we now have..its a big ask. Unfortunately, we have to accept some QRM at some time or another and thats it, in the real world. I think the Pactor mode has been somewhat tainted by the WinLink wars, to a large degree. I mean, I could set up a Packet Mailbox and start beaconing, looking for contacts :-) 73s Jack VK4JRC __ Participe en Universidad 2008. 11 al 15 de febrero del 2008. Palacio de las Convenciones, Ciudad de la Habana, Cuba http://www.universidad2008.cu
[digitalradio] 30 Meter VK/ZL/Pacific Digital Weekend
30 Meter VK/ZL/Pacific Digital Weekend When: Weekend of February 9/10 2008 Time: For convenience of Universal Time and a reference point this 'Free and Easy' activity will start around 0600Z on the 9th and end 1900Z on the 10th of February Where: 10.138 to 10.145 KHZ Modes: PSK31 RTTY or whatever digital mode you fancy. Depending on propagation here is a rough guide to follow in contacting VK/ZL's: For Europe: 0600 to 0800Z and after 1200 to 1400Z then 1500 to 1900Z. For USA/Canada: Around 0800Z and after 1100 to 1200Z if propagation is kind to us. For Japan/Asia: 0800Z and onwards. THIS ACTIVITY IS NOT A CONTEST The main aim is the promotion of the 30 meter band and Digital communications allowing the opportunity for the rest of the world to work VK/ZL/Pacific stations in a easy relax atmosphere of Your Choice of rag chewing and or experimenting with modes/propagation All our welcome to join in and have fun. For all queries please contact: Bill ZL3NB [EMAIL PROTECTED] or Don KB9UMT [EMAIL PROTECTED] 73 de Bill ZL3NB http://www.groups.yahoo.com/group/kiwidxlist http://www.groups.yahoo.com/group/30meterPSKGroup Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs
[digitalradio] Re: I, am a Pactor Robot............
Hello Howard, I was actually agreeing with John; sorry to all if it was poorly worded. When operating Pactor (and in the past using Amtor), I too have been interfered with and when I queried the other stations they said something to the effect that, I thought you were a bot. Obviously no excuse. 73, Bill - Original Message - From: Bill McLaughlin [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Wednesday, January 16, 2008 10:16 PM Subject: [digitalradio] Re: I, am a Pactor Robot Hello John, Well I have seen no others, aside from you, complaining about qrm when operating Pactor modes on the sole basis that you were using Pactor. I am sure it happens as we all get benign qrm. SNIP SNIP
[digitalradio] Re: New file uploaded to digitalradio
--- In digitalradio@yahoogroups.com, John Becker, WØJAB [EMAIL PROTECTED] wrote: Would someone like to step up and take credit for this? John, W0JAB Hey John, this is an article I submitted to our local ham club's newsletter*. Let me know if there's anything glaringly wrong, as it won't get printed until a week or so from now. Opinions are also welcomed. Hey, anyone notice all the 20M PSK31 activity today? Busiest weeknight I've seen in a while! 73. Frank, K2NCC http://evokefrank.googlepages.com * Back issues and other info for OTVARC can be found here: http://otvarc.org
[digitalradio] PACTOR I Activity
Hello Again, Had a great chat with VE1XL (Dick) in Hillsborough, New Brunswick, that lasted the better part of an hour. I copied him on this message so that I could pass along the two links below for him to use: We're posting activity on the following sites: http://www.obriensweb.com/sked http://www.projectsandparts.com/pactor/ Dick was saying that his operation is a bit hit 'n miss so the links may help him. KU2A (Nick) picked him up after we dropped the link. He then got picked up by K3CXB (Walt) who was having his first PACTOR contact ever. He was learning with software based PACTOR I so stayed FEC I believe. I'm wondering if he was using MultiPSK since he said he did have AMTOR ARQ in the package and wanted to try the ARQ. Anyway, thought I'd pass along the moment to you. Here's a little cut 'n paste just to show 'n tell: CQ CQ CQ de W6IDS W6IDS RICHMOND, IN EM79NV CQ CQ CQ de W6IDS W6IDS RICHMOND, IN EM79NV CQ CQ CQ de W6IDS W6IDS RICHMOND, IN EM79NV CQ CQ CQ de W6IDS W6IDS RICHMOND, IN EM79NV HOWARD in RICHMOND, IN EM79NV at 01:26 UTC K W6IDS de VE1XL = hello. Not too many of us around. Name here is Dick and my QTH is Hillsborough, New Brunswick. BTU OM. W6IDS de VE1XL = VE1XL VE1XL (Dick) DE W6IDS W6IDS Dick and nice to see you on the mode. Yes, you're right. There's not a lot of PACTOR I on the air but interest is gaining more momentum lately. I think it stems from the DIGITALRADIO message forum discussions involving andi-Winlink operations, PMBO stuff, etc. Your call is anice surprise for sure. Name is Howard as youmay have noticed. Location is about 37 miles West of Dayton, OH right on the OH/IN border. I'm using a PK-232MBX that I've had since 1989 and am giving it a workout. Surprised at how much I've had to relearn for not using it much. Your rst is S8 S8 with just a little QSB but not bad. You took a little dive at 0132Z but hung in there. Software in use is the WinXP package and it has seemed to work well. BTU, let's see how you are doing... VE1XL VE1XL DE W6IDS W6IDS K K W6IDS de VE1XL = RR FB Howard and it sure is nnice nice to hear your signal and to meet you. I am a long-time Pactor operator and I manage to snag a few QSO if I listen long enough. I hope you are correct in that maybe all the comotion will stur up more interest. I do find that most of the ot digital sound card modes are very much inferour.. Spelling.. I have been doing this in Amtor since 1987 and then came Pactor in the early 1990s or so and I have been here all along. hi. I am using an SCS PTC-2e. The radio is a Ten-Tec argonaut V QRP radio to a small linear amplifier to only about 50 Watts out to a dipole. My software is called NcWinPTC by PA0NC. I am familiar with the XP Ware you are using. A good program. FB your QTH and signal port. You are S-5 to S-6 with noise on the band. but this gets through very fine. I do have Pactor 2 and 3 here also. Nost of the WinLink 2K stations use the Pactor 2. BTU before I hog it all on you, Howard. W6IDS de VE1XL = VE1XL VE1XL (Dick) DE W6IDS W6IDS Tell you what, give me your email address and I'll send you two links that PACTOR operators are posting their activity. I'm posted there now, and just noted that we're connected. SNIP
Re: [digitalradio] Re: I, am a Pactor Robot............
Well, s? I thought that might have been the case but then,
I could have been wrong...so I cashed in my $ .02 worthGRIN
In fact, it happened today...talked with VE1XL (Dick) in Canada
using PACTOR I and near the end of the contact, I could hear a
('scuse me but) PMBO or at least a station sounding like one
right close to use and fairly strong. Gave Dick some competition
for sure. It was surprising because I had been listening for about
15 mins on 3.5880 with no activity noted at all. Then, after talking
with Dick for the better part of an hour, voila! There's this PACTOR
station suddenly making its presence known.
I did post a cut 'n paste of the chat just for show 'n tell and give
a little push for PACTOR I activity - it still works, of course. It was
fun today.
Howard W6IDS
Richmond, IN
- Original Message -
From: Bill McLaughlin [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Thursday, January 17, 2008 7:55 PM
Subject: [digitalradio] Re: I, am a Pactor Robot
Hello Howard,
I was actually agreeing with John; sorry to all if it was poorly
worded. When operating Pactor (and in the past using Amtor), I too
have been interfered with and when I queried the other stations they
said something to the effect that, I thought you were a bot.
Obviously no excuse.
Re: [digitalradio] Re: New file uploaded to digitalradio
No not a thing wrong with it. I would just like someone to get the credit for it since there was no name or call in either the email address or any place else. Thanks, again Frank. John, W0JAB co-moderator. At 07:07 PM 1/17/2008, you wrote: --- In digitalradio@yahoogroups.com, John Becker, WØJAB [EMAIL PROTECTED] wrote: Would someone like to step up and take credit for this? John, W0JAB Hey John, this is an article I submitted to our local ham club's newsletter*. Let me know if there's anything glaringly wrong, as it won't get printed until a week or so from now. Opinions are also welcomed. Hey, anyone notice all the 20M PSK31 activity today? Busiest weeknight I've seen in a while! 73. Frank, K2NCC http://evokefrank.googlepages.com
Re: [digitalradio] RFSM8000
Hi John, Can you tell us anything about how this technology is working out? From what I can see from the web site, it replaces and is backward compatible to RFSM2400. Although we can not use it here in the U.S. on the frequency you selected, it could be used to send images in the phone/image portions of the U.S. sub bands. What is your feel for the robustness or lack of it, etc.? The waveforms appear to be based upon the MIL STD modes although some may be modified. Have you registered the program? Or plan to if the 30 day test has not run out? The cost seems very high to me at $290 USD for the pro version, but even the $180 USD price for the ham version is still impractical for many to purchase unless they could actually use it, and it would work as well as say, Pactor 3 or close to it. Is the old RFSM2400 program available for free ham use? I now have the capability to key a COM port PTT mode so could use the older program. I see that the new program claims to support CI-V. Any thoughts on this? Anyone else who has experience with either of these programs? 73, Rick, KV9U John Bradley wrote: at 20:00Z Beaconing 14103.0 RFSM8000, non-standard modulation , 60sec intervals, for the next 2 hours John VE5MU No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.6/1229 - Release Date: 1/17/2008 11:12 AM
RE: [digitalradio] Re: I, am a Pactor Robot............
I'm going to start driving my car around at 150 mph. When some programmer develops an an add-in that reads speed limit signs and prevents me from going too fast, I'll stop running into other cars and people. Any criticism I receive between now and then from victims or onlookers will be disregarded as pot-stirring. 73, Dave, AA6YQ -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Jose Amador Sent: Thursday, January 17, 2008 4:06 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Re: I, am a Pactor Robot Pretty confusing indeed. As Jack says, you never know when someone will connect. Have any of the proponents been a sysop? I guess they have not. TIS Software would have to be rewritten, so an incoming call rings a bell, turns on a lamp, awakens the dogs and let'em out, something that lets the sysop know his box is being called, listens between packets and authorizes the connection in a timely fashion. As far as I know, such a software has not been written, but would be interesting to hear about prospective programers to solve that problem for us. There are already at least two tasks to be done: A busy detector and a sysop awakener. Any volunteers to get the things well done? At least, an API with the calls and procedures is needed, in order to encourage other software developers to join the effort in a structured, well thought fashion. Also, a legal advice could be displayed, warning the sysop that any QRM originated by his allowance to answer a call can be used against him/her. Or keep on the fundamentalistic, taliban aproach: criticize, criticize, stir the pot, do nothing else and get such activity forbidden. This seems to be a LOT simpler. So far, as I see, only the taliban approach is showing any progress. /TIS 73, Jose, CO2JA --- Jack Chomley escribió: At 01:14 PM 1/17/2008, Danny wrote: Jack. We on the other side see THAT as exactly the problem. Your mailbox sits there silent. Somone else gets on the freq and calls it. It comes up - and causes interference to someone else that is already using the freq (which you would have heard if you were physically sitting there operating). The origninal caller to you, because of propagation, did not hear the other ongoing QSO- but YOU would have. Therefore it is your transmitter that caused the interference. All quite easily taken care of if our software had a busy signal capability, and simply didnt respond to the other guy, while other signals were up and on the air. That software has been written, and from my understanding would be made available to the Pactor software people, if they would just accept it. If its been done, other software writers can do the same. Your mailbox needs to be controlled by YOU, not the other end, as long as there is no busy signal detection. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do. Well, even IF I am at the keyboard, I do not know IF someone is about to connect.until they do. When that happens, do I just switch the box off? Yep, I could do that and the station at the other end would scratch his head and wonder what is going on, like he connected and next minute he is cut off by me. If it was me trying to connect.then I would keep trying, just like he would. Looking for contacts in this hobby, is what its all about. I mean, this kind of operation was done on HF Packet for many years, BBSs forwarded on frequencies and everyone simply got along, generally :-) A busy signal scheme will only work while there is a signal present, the moment there is a break in the signal being heard, the busy detect would drop and.the station would fire up, unless the busy detect had a timer, which counted x time after loss of heard signal, before the station transmitted. Danny, I think you are asking for a perfect solution, when given all the modes we now have..its a big ask. Unfortunately, we have to accept some QRM at some time or another and thats it, in the real world. I think the Pactor mode has been somewhat tainted by the WinLink wars, to a large degree. I mean, I could set up a Packet Mailbox and start beaconing, looking for contacts :-) 73s Jack VK4JRC __ Participe en Universidad 2008. 11 al 15 de febrero del 2008. Palacio de las Convenciones, Ciudad de la Habana, Cuba http://www.universidad2008.cu
[digitalradio] RF feedback problems
I have a Kenwood TS-680S rig and am using a psk31/rtty soundcard interface from Associated Radio. Whenever The db9 data cable from the interface is plugged into a computer my signal is terrible when I transmit data or use the microphone. Unhooking the microphone does not help. Before I buy some ferrite chokes I wanted to see if anyone has any other ideas of how or what the problem may be and how to fix it.
