On the Heil cable I'm using, the PTT is on pins 5+6. The mic is on pins 7+8. Should the barrel of the connector be connect to anything?
*B KK2QQ -----Original Message----- From: Bret Mills [mailto:bmil...@ecso.com] Sent: Sunday, December 05, 2010 10:57 AM To: 'Bradley Feldman' Subject: RE: [Flexradio] New 5000A User - TX Audio (severe distortion) Issues Check the HEIL MIC adapter and MAKE sure that the MIC ground goes to the radio MIC Ground and the PTT Ground goes to PTT Ground on the radio. On a LOT of the HEIL adapters they wired the ground pins backwards and this may be the cause of your problems, on Yaesu radios this didn't make much difference but on the FLEX it makes ALL the difference in the world. Hope this helps and 73's and Happy Holidays Bret WX7Y -----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bradley Feldman Sent: Sunday, December 05, 2010 8:37 AM To: flexradio@flex-radio.biz Subject: [Flexradio] New 5000A User - TX Audio (severe distortion) Issues I'm new to flex, sdr and this list. I have a brand new 5000A, fully loaded (including the VHF/UHF board). Station is completely new -- new QTH, new Mic (PR 781), new temporary antenna (Miracle MMD 30m). I've worked through issues on installation and receive and seem to have those licked including using VAC with digital modes. Now I'm trying to get TX working right for working QRP until spring comes and I can set up my Steppir Bigir that's sitting here in a box. I've been a ham since 1990, but have largely been on my own with regard to setting up and solving shack problems-- I don't belong to any clubs at the moment, so I appreciate any help I can get from this list with the issue I describe below -- which may not be a "flex issue" but perhaps an ordinary ham setup issue. I don't know. Here's the issue: When keying up and testing my mic in phone mode (I don't have a key set up), once there is enough audio level to drive some rf output power, I start to hear distortion in the audio-- it kind of sounds like the sound of a helicopter with echo and reverb that continues until I unkey. I've done Google searches, flex KB searches, forum searches and read the flex troubleshooting guide to try and find a solution. Based on that information, I've tried the following: I've grounded the radio to the PC with ground strap. I installed RS ground loop isolators on all audio connections to/from the radio and PC. I put extra ferrites on the PC side of the stock flex firewire cable. The issue remains. Any ideas of what to do next or what additional info is necessary to help me? *Bradley KK2QQ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
