It's from a 60's - 70's era song ... Gee, I'm a leftist, but I've never played Dungeons and Dragons (the dice are weird). Or did you mean some other kind of Troglodyte? -- Thanks! & 73, KD4E.com Davi
There is an outside panel with breakers located below the meter which I believe is not affected by the inside main breaker. Just wondering if you have the same situation & it may be powering a potent
Maxim was promoting this via Twitter: http://pinterest.com/maximintegrated/charge-pump-ics/ I asked about RFI data and this was their reply: "RFI depends on the circuit you choose, layout & component
Unless he's hiding something ... could be his grow lights causing the RFI ... ;-) I would first get the guy to drop his defense shields so you can explain his situation( not yours). The I would point
There's an aftermarket one of those white things that is a RFI-monster! It has since died but I cleaned it up by plugging it into a well-filtered power strip. I don't do Apple stuff, other then the t
Rosewill RK90001 $89. with free shipping on ebay ... I've never heard a peep out of my Rosewill RK90001 with Cherry MX Blue "tactile" switches, apparently also well liked by gamers, and their positiv
I think also most of the Yaesu VX-series handhelds, the Kenwood TH-F6A, and others include AM receive on HF. I think the TH-F6A may also include CW/SSB rx on HF. Also, I believe that the new yaesu FT
Since the ARRL & FCC foolishly obliterated the meaning of the numeral in a callsign can you share your geographical location & recent weather changes - as may relate to heating needs? That info may r
If it's noisy during roughly the same time as your furnace is running then there's a good chance it's his furnace running. Probably running less as they'd have the temp down while it's unoccupied & o
Round & round we go? http://www.ti.com/ww/en/more/solutions/plc.shtml It's like a Halloween monster movie - this failed technology keeps rising from the dead. -- Thanks! & 73, KD4E.com David Colburn
Thank you for that perspective. That is encouraging news. Any sense as to how dependent the spectrum purity is on age and environment-degraded components, e.g. bypass or PS capacitors? David This PLC
In relative terms under normals conditions CO rises, O2 hovers, CO2 falls. You should do a fact check on the density of CO. CO is slightly lighter than air and will tend to rise. David KW4DH -- Thank
Cleaning up the shack I found a Palomar "RF Interference Kit" box of toroids, I bought this used a while back - the contents are not entirely original: (6) Palomar Engineers FSB 1/4 (2) F50-43 (2) F8
Do these have any Ham application? http://www.goldmine-elec-products.com/prodinfo.asp?number=G19746 -- Thanks! & 73, KD4E.com David (never Dave) Colburn - Nevils, Georgia USA Safe & Secure Search Eng
Isn't it more of a question of how? Properly implemented it may be fine, sloppily implemented it could create problems - of course that's true of all grounding systems. On 12/19/2013 1:39 PM, EDWARDS
Digi-Key: "KEMETs broad new series of EMI cores manage radiated noise across a variety of frequencies" http://www.digikey.com/product-highlights/en/emi-cores-for-cables/51148? -- David (NOT Dave) Col
Their summary/target app seems distracting: FM frequency in MHz range filtering with NiZn AM frequency in kHz range filtering with MnZn The graphs in the PDF, and their discussion of turns/resonance
What brand and model LED string, please? ...I know a ham who has some LED string lighting over his ham desk and says it's quiet, so all over the ball park with this stuff. Thanks Mike 73 Dale, K9VUJ