- 1. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: Frank W3LPL <donovanf@starpower.net>
- Date: Fri, 6 Jan 2023 22:06:47 -0500 (EST)
- Hello AJ, Topbanders have done an excellent job of precisely identifying the source of the 1940 kHz intermod. I don't think its helpful for those of who are not being harmed to lodge a complaint with
- /archives//html/Topband/2023-01/msg00043.html (12,608 bytes)
- 2. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: Don Kirk <wd8dsb@gmail.com>
- Date: Sat, 7 Jan 2023 00:52:35 -0500
- Hi Frank and gang, I might be able to help provide some additional insight/direction. This is not necessarily a case of having to show harmful interference, as the AM Broadcasters are held to some ve
- /archives//html/Topband/2023-01/msg00044.html (17,261 bytes)
- 3. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: Jim Brown <jim@audiosystemsgroup.com>
- Date: Fri, 6 Jan 2023 22:01:00 -0800
- This was certainly true when I worked in broadcasting 60 years ago, but With deregulation (during the '70s?) and a gutted FCC, it may be a thing of the distant past. I'd like to learn that I'm wrong,
- /archives//html/Topband/2023-01/msg00045.html (9,019 bytes)
- 4. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: Don Kirk <wd8dsb@gmail.com>
- Date: Sat, 7 Jan 2023 01:30:14 -0500
- Hi Jim, The AM radio stations are required to do the annual measurements per the current FCC rules and I have indeed been shown the measurement data at transmitter sites I have visited. The FCC does
- /archives//html/Topband/2023-01/msg00046.html (9,703 bytes)
- 5. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: A J <iamfromcanadaalso@gmail.com>
- Date: Sat, 7 Jan 2023 07:57:24 -0500
- Hi Everyone I would like to thank everyone that has helped on and off the list in finding the possible stations causing the mix. I do not know the rules for secondary emissions in the US was why I as
- /archives//html/Topband/2023-01/msg00047.html (14,162 bytes)
- 6. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: David Olean <k1whs@metrocast.net>
- Date: Sat, 7 Jan 2023 08:44:51 -0500
- I had a similar situation on VHF. I operate on 222 MHz among other nose bleed bands, and was greeted by a very large chunk of RFI in the SSB/CW portion of 220. Others in northern New England were hea
- /archives//html/Topband/2023-01/msg00048.html (17,388 bytes)
- 7. Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: "Roger Kennedy" <roger@wessexproductions.co.uk>
- Date: Sat, 07 Jan 2023 12:20:08 -0500
- Glad you have at lest identified the source of this problem . . . Back in the 70s suddenly a spurious signal appeared on 1880kHz. You could clearly hear that it was two stations from a local BBC AM T
- /archives//html/Topband/2023-01/msg00049.html (6,981 bytes)
- 8. Re: Topband: 1940 kHz intruder WWRU WKDM (score: 1)
- Author: Frank Donovan <donovanf@starpower.net>
- Date: Sat, 7 Jan 2023 13:37:39 -0500 (EST)
- AJ, Do you have any idea when the intermod was first discovered on 1940 kHz? That might be a useful information for the chief engineer of the two stations. 73 Frank W3LPL Hello AJ, Topbanders have do
- /archives//html/Topband/2023-01/msg00051.html (9,177 bytes)
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