[TowerTalk] Whole House Generator

[Jim Hargrave]

I'll add another tid bit on RFI source.

Many Gensets use an SCR based battery charger. These are extremely noisy. 
This is especially true with power control panels used in older 
motorhomes and smaller Gensets that do not include an alternator 
for the battery charger circuit.

    73s de Jim
       W5IFP
  


  > -----Original Message-----
  > From: TowerTalk [mailto:towertalk-bounces at contesting.com]On Behalf Of
  > Castellano, Michael (USACT)
  > Sent: Wednesday, March 27, 2013 9:30 AM
  > To: towertalk at contesting.com
  > Subject: [TowerTalk] Whole House Generator
  > 
  > 
  > Just a couple of anecdotes here... RFI  vis a vis generators
  > 
  > My home genset is a 14kW diesel (permanent install) with manual 
  > transfer.  No RFI problems, though when the power is out
  > probably the LAST thing I am going to do is get on the air hi 
  > hi.  I DID go all out on grounding/bonding  the genset
  > to make the electrical inspector and my receivers happy.
  > 
  > I also  have a 300 kw (not a typo) diesel gen at my commercial 
  > tower site, likewise, no RFI when I am listening on my
  > SP-600 and R-390a up there. (my AM station... 160 inv vee at 
  > 290 feet and 7/8 hardline.) Of course the grounding/bonding
  > up there is massive. :)   But I DO get noise from the 
  > "computerized" status panel.
  > 
  > I am beginning to think that part of the problem might be 
  > inadequate grounding of gensets, especially smaller portable 
  > ones. I know, I did
  > before an electrician showed me where I was lacking on that set. ..
  > it was as simple as using a shorter, larger sized conductor to 
  > a better ground rod.
  >  Worth checking into !
  > 
  > 73 and see ya on the bands...
  > 
  > Mike  KM1R/HS0ZAI
  > 
  > 
  > 
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