[DSTAR_DIGITAL] IC-91AD Buzz on 2 meter Transmit
I am working with the Fort Bend County Office of Emergency Management and they have some D-Star capable radios that I am doing some of the memory programming. One of the IC-91AD radios I was loading memories did not seem to work on 2 meter Digital transmit; neither the call sign nor the message appeard on a adjscent radio tuned to same frequency. It did seem to receive fine. The 70 cm transmit and receive worked fine. When I went to 2 meter FM I heard a buzzing sound in the adjacent receiver. I could talk loadly into the 91AD and hear my voice in the other reciever, but the buzz sound was still very strong. Has anyone heard of this problem??? I am wondering if I accidentally set something that might be causing this problem. I have done an All Reset (While pushing and holding [VFO], [MR] and [BAND], then turn power ON to reset the CPU.) three times (checking the radio after each time and even reloading the memories). My understanding is that this should set all the settings back to factory original, but I am wondering if there might be something that can be set and is not reset by the All Reset??? Thanks for any help. 73, Charles WB5EXI
RE: [DSTAR_DIGITAL] IC-91AD Buzz on 2 meter Transmit
I think your problem is that you are listening to a DV transmission in FM mode. All you will hear is a buzz. You need to have both radios in the same mode. Fran <http://weather.miele-family.com/> _ From: dstar_digital@yahoogroups.com [mailto:dstar_digi...@yahoogroups.com] On Behalf Of CharlesK Sent: Monday, October 19, 2009 9:24 AM To: dstar_digital@yahoogroups.com Subject: [DSTAR_DIGITAL] IC-91AD Buzz on 2 meter Transmit I am working with the Fort Bend County Office of Emergency Management and they have some D-Star capable radios that I am doing some of the memory programming. One of the IC-91AD radios I was loading memories did not seem to work on 2 meter Digital transmit; neither the call sign nor the message appeard on a adjscent radio tuned to same frequency. It did seem to receive fine. The 70 cm transmit and receive worked fine. When I went to 2 meter FM I heard a buzzing sound in the adjacent receiver. I could talk loadly into the 91AD and hear my voice in the other reciever, but the buzz sound was still very strong. Has anyone heard of this problem??? I am wondering if I accidentally set something that might be causing this problem. I have done an All Reset (While pushing and holding [VFO], [MR] and [BAND], then turn power ON to reset the CPU.) three times (checking the radio after each time and even reloading the memories). My understanding is that this should set all the settings back to factory original, but I am wondering if there might be something that can be set and is not reset by the All Reset??? Thanks for any help. 73, Charles WB5EXI <>
Re: [DSTAR_DIGITAL] IC-91AD Buzz on 2 meter Transmit
Charles, How "adjacent" was the second radio (I assume it was a 91AD)? I have found that you should have about 10 feet or so separation between the 91ADs (depending on power setting) or you can run into problems with callsign/message as you describe. The buzzing is a separate issue, I think -- were you running off batteries or with the charge plugged in, etc.? On Oct 19, 2009, at 6:23 AM, CharlesK wrote: I am working with the Fort Bend County Office of Emergency Management and they have some D-Star capable radios that I am doing some of the memory programming. One of the IC-91AD radios I was loading memories did not seem to work on 2 meter Digital transmit; neither the call sign nor the message appeard on a adjscent radio tuned to same frequency. It did seem to receive fine. The 70 cm transmit and receive worked fine. When I went to 2 meter FM I heard a buzzing sound in the adjacent receiver. I could talk loadly into the 91AD and hear my voice in the other reciever, but the buzz sound was still very strong. ... Thanks for any help. 73, Charles WB5EXI John D. Hays Amateur Radio Station K7VE PO Box 1223 Edmonds, WA 98020-1223 VOIP/SIP: j...@hays.org Phone: 206-801-0820 801-790-0950 Fax: 866-309-6077 Email: j...@hays.org
