Or a guy can use a dual speed unit. Zero point zero RFI issues.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 9/30/20 5:01 PM, James Jordan wrote:
I’ve mentioned this on the reflector before but I think all variable speed pool
pumps including the two Pentair which I have at our VP5 property generate substantial
RFI if not filtered. Fortunately the solution is the Schaffer series 631-FN2070 line
filter available from Mouser. You must determine the maximum current of your pump and
get the model number with the correct amperage extension. Install as close as possible
to the variable drive and be sure the case is grounded. Another one at the breaker box
may be necessary to kill any remaining RFI using the house wiring as an antenna.
About $40 each. You might ask your installer to pay for it and install per code.
Good luck. 73,
Jim K4QPL VP5M
Sent from my iPhone
On Sep 30, 2020, at 5:44 PM, Jim McCook <w6ya@cox.net> wrote:
Today I finally got the answer to my complaint of pool pump RFI from Fluidra, a national
distributor for the Jandy Pool Pump next door. As expected, they assume no responsibility
because of their claim that their product (a multispeed motor) "meets all codes and
regulations required as well as those of the FCC." This issue prompted my post on Sept 2:
RFI- A Losing Battle. I know I'm not the only one who has reported pool pump RFI, which can be
devastating.
Yesterday I noticed the 24.896 MHz signal strength on my calibrated K3 S-meter
was S-8, which translates to 25 uv at the antenna terminal. On that band my
antenna is a rotary dipole, 100 ft away from the pool pump. On other bands
(10m and 6m) the strength is less, but still a very serious interference when
those bands are active and signal levels are low. 12 meters WILL be active
again in a few years.
If you are considering installation of new or replacement of old pool
equipment, I suggest you avoid Fluidra and Jandy products like the plague. I
also suggest you have a contract with the installer that payment is contingent
on no evidence of RFI generated by the equipment. I have friends who have done
this successfully with solar installers. If they refuse to include such a
clause, find another installer. Please pass this on to all friends who are
considering such a purchase. - Jim W6YA
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