Ed Re: KPA-1500 Question

[Elecraft mailing list]

Hi Ed,
 
Thanks for all the RTTY Qso's!
 
I read your post on the Elecraft reflector with interest.  I have two different sets of Bose QC-15 noise canceling headphones, and when I use either one, and running on CW or RTTY, the fan noise from my KPA-1500 is loud and annoying when the Fan hits level 2, and extremely loud and extremely annoying when the Fan it hits level 3.  It's hard for me to copy CW signals when the Fan hits level 3 and extremely difficult to receive when the Fan hits level 4.    
 
Many people have complained that the Yaesu Quadra has noisy fans when transmitting and running at full speed, the fan noise from my KPA-1500 is louder at Fan level 2 than my Quadra fans are when operating at full speed.  Also, when the KPA-1500 fans are at Level 2 the noise bleeds through my noise canceling headphones louder than the fan & blower noise from my Alpha 8410.
 
So either your noise canceling headphones work better than mine or your "field-test" KPA-1500 is a quieter than my production model.  Please advise what type of noise canceling headphones your using?
 
Thanks & 73,
Dick- K9OM
 
 

From: Ed W0YK <[hidden email]>

Anecdotally,? I've operated several RTTY contests with a field-test KPA1500 and it just loafed along.? I didn't critically examine fan noise.? With noise-canceling headphones,? I wasn't aware of any fan noise.? Operationally, it felt like QRP, Wayne's target environment.?
73,Ed W0YK
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]