Path: utzoo!utgpu!ugw.utcs.utoronto.ca!CUVMA!SWL-L Date: Fri, 2 Feb 90 09:18:06 EST Reply-To: Rick Sterling - PA Sender: Short Wave Listener's List Comments: Warning -- original Sender: tag was From: Rick Sterling - PA Subject: Re: Sony-2010 - Noise X-To: swl-l@cuvmb.cc.columbia.edu To: UofToronto LAN redistribution Message-ID: <90Feb3.073442est.57398@ugw.utcs.utoronto.ca> Newsgroups: bitnet.swl-l Distribution: ut Approved: devnull@gpu.utcs.toronto.edu In article <1218@nsscb.UUCP> nrg@nsscb.UUCP (G.Narotham Reddy) writes: > Recently I bought a Sony-2010. I found it's sensitivity no better than > Sony-ICF7601. When I turn it on to tune to 11620khz in the morning (7:30est) > I am getting lot of strange noise. The noise is very similar to the > one comes out of a big transformer. Also there is lot of static noise. > Our apartment complex is not in the vicinity of any kind of transformers > or any other industries. I tried to use a Radio Shack AC line noise filter. > But it did not serve the purpose. I think the noise/static is being radiated. > > This situation persists for 11620, 11820, 9665, 9910, 15335, and 7412khz. Also I > tried to tune to these stations in the early hours like 3:00EST but > found the situation no better. I bought this radio only for the sake of > tuning to these stations. Does any one have a possible answer for this > agonizing situation. > -- > _________________________________________________________________________ > > Narotham Reddy reddy@attctc.Dallas.TX.US reddy@nucleus.mi.org > _________________________________________________________________________ I have a similar situation at my location. 426 Condos all using electric heaters in my case. Each of these heating units has a thermal relay that controls preheating the furnace so it doesn't blow cold air when first turned on. The thermal relays apparently get sluggish with age and start ARCing. A 5.0KW spark gap transmitter makes a LOT of noise! I've noted the ``signals'' well into the UHF range. ;-( All I can do is pray for warmer weather. ;-) This is just one of may possibilities ... another ``biggy'' is an arcing power line/transformer nearby. -------------------------------------------------------------------------------- Rick Sterling N2CGI Commodore Technology Group (215)-431-9275 Test Engineering UUCP ...{uunet,allegra,rutgers}!cbmvax!sterling --------------------------------------------------------------------------------