>external solution FANticipator ... but this requires a computer with
wifi
FANticipator does not require WiFi, merely a computer on the LAN -
ethernet or WiFi. The only additional connection is ethernet to the
KPA1500.
https://hamprojects.info/fanticipator-kpa1500-console-and-fan-controller/
-larry (K8UT)
-- Original Message --
From: "eric norris via Elecraft"
To: "elecraft@mailman.qth.net"
Sent: 8/28/2022 7:20:08 AM
Subject: [Elecraft] RFE KPA1500 FAN PROFILE
May I suggest adding a command that allows users to select the more aggressive
6m fan profile on the KPA1500 for HF use? Call it, for example, FP6; to revert
back to the normal HF profile, say FPD. These could then be loaded into FP1
and FP2--We could select the best profile for the current op. 6m ops are
unaffected.
Digital users would find a cooler running amp for RTTY and FT8, for example, as
well as slow-speed CW ops and K4 users pushing the fabulous CESSB feature,
which does create a hotter running KPA.
My experiments show that just running the fans at FAN1 or FAN2 do not create
sufficient airflow as the amp heats up. Running at FAN3 keeps things cool, but
can create large swings in neatsink temps during rx periods.. It also irritates
the XYL, and makes copy more difficult, even with Radiosport, Heil, or Bose
QC-35 noise-cancelling heatsets
Likewise, experimenting with FAN DWELL did not solve the issue.
There is an external solution, FANticipator, but this requires a computer with
wifi, and a LAN connection to the KPA1500--more stuff that needs to work and be
turned on. FANticipator does very effectively lower PA temps AND fan noise. I
think the FP6 command will also help with noise and temps.
The advantage of implementing my suggestion is that it does not affect KPA1500
owners who are happy with the current HF fan profile, but can help those of us
with low noise tolerance, tinnitus, or who just want a cooler KPA1500, and does
it without an external Pc.
Finally, it could be a marketing tool, since ICOM appears to be touting the PW2
as a quiet. amp.
I would be happy to beta test this, if offered, and come back with some real
numbers
Thanks for your consideration.
73, Eric WD6DBM

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