I haven't yet found a split choke that works - at all. I did find that switching to flat screen monitors reduced the RF pollution by almost half. But I can't use a portable on AM or LW in the same

That's good info on the Porta-Pros. I see that their impedance is 60 ohms, twice that of my Senneiser PX-100's. It is my understanding that the higher impedance really helps cut down on the

"G%" is supposed to be "G5". I really wish you could edit on here.

"G%" is supposed to be "G5". I really wish you could edit on here.

I've read that some folks hear a hiss on the 310, but I don't with PortaPros or Sennheiser IE 7s. I even hooked it up to a 'scope to see if maybe I could see the noise and didn't. There's also no DC

Hi Farmerik, one of the most common sources of RFI (as noticed by colleagues here in Brazil) are the Compact Fluorescent Lights (CFL). Some brands generate lots of noise, other not that much. If you

It looks like the smaller mixture numbers are better for lower frequencies, so I had that wrong in my first post. My focus is the AC house wiring, all circuits seem to be loaded with RFI. If I put a

Peter, I agree that the presentation you linkedto is one of the best out there. If you remember one thing it is that thesuppression is proportional to the square of the number of turns. The

RFI is everywhere! I kept hearing a fuzzy "pulse" and traced it down to a battery powered Seiko wall clock. It seems like they stick a noisy processor in everything they make these days. Thanks for

http://audiosystemsgroup.com/RFI-Ham.pdf This is hardly a FAQ, but it is a good tutorial on RFI. It's ham-oriented, but RF is RF and a lot of it is receive oriented (as opposed to RFI from your own

Hi all: With the current surge of interest in longwave Ultralights, I did a little more research into what is available, other than the Tecsun PL-300WT, 310, 369, 380 and 606. The availability of

My house hold computers are leaking RFI into the house wiring, and it is acting like an antenna for RFI where ever anything uses AC power. I started looking around, and noticed at New Egg, some of

Hi Steve, the M37L is a European version (I guess) of the M37W with longwave in stead of the weather band. I bought one in 2007 in a Sony Centre in Belgium (for about 70 euros) and another one on

Correction: One of the loggings I just submitted contained a mispelled QTH. Sorry...it should read: Kirk Allen Ponca City, OK

Brrr, it's cold here in Oklahoma lately. I apologize for not reporting lately, but I think my hands are half frozen! Anyway, two new stations to report this time. This one is Thanks To a Recent Tip

Hey Steve/all: I tried in the past to buy a M37L, but they are apparently only available in Europe, primarily in the UK, where they go for about $45 US plus whatever the shipping would be. KK

Hi Henk, Where do you obtain the SRF-M37L? I'm not familiar with that model, with the LF? Steve

Hi Peter: Here is one source for Mexico: http://www.amfmdx.net/amdx/corazondx.html Kevin

No mod is required ONLY if your receiver has an external antenna jack. If it does not then you have limited choices: 1) modify the radio; 2) resonate the antenna in close physical proximity to the

Peter, A website that I use a lot for Mexican DX is: http://mexicoradiotv.com/frec_am.htm Fred Cantu maintains that website and updates it frequently. Another resource I use is the IRCA's Mexican Log.