XV-144 heat
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This is odd because I drive my XV-144 with 1 mw as well, but at 10W output in digitial mode (1 min tx, 1 min rx) it gets way too hot to survive without a fan. I have one screwed to the shelf it sits on that blows air under the XV-144. Inelegant, but effective. I would like to see a fan retrofit kit as well, perhaps inside the top cover that would draw air through the unit and exhuast it out the top.
73, Eric WD6DBM ______________________________________________________________ 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 |
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A fan fitted inside the top cover sounds a good idea, Eric, as this
would save having to drill a series of holes on the printed board as I have done. However, you would still need to drill some holes in the bottom cover. You can't really draw air out if there is nowhere for it to go in. Having fitted the on-board fan, I have just tried running it at 10W output for 30 minutes on a dummy load. Warm air is coming out of the top vent holes and, taking to top cover off, the PA module is warm to the touch, but not hot. 73 David G4DMP In a recent message, eric norris <[hidden email]> wrote ... > >This is odd because I drive my XV-144 with 1 mw as well, but at 10W >output in digitial mode (1 min tx, 1 min rx) it gets way too hot to >survive without a fan. I have one screwed to the shelf it sits on that >blows air under the XV-144. Inelegant, but effective. I would like to >see a fan retrofit kit as well, perhaps inside the top cover that would >draw air through the unit and exhuast it out the top. -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ 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 |
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In reply to this post by WD6DBM
My xv 144 has holes on both the top and bottom cover as it came from the factory
Sent from my iPhone On Dec 13, 2009, at 11:12 AM, David Pratt <[hidden email]> wrote: A fan fitted inside the top cover sounds a good idea, Eric, as this would save having to drill a series of holes on the printed board as I have done. However, you would still need to drill some holes in the bottom cover. You can't really draw air out if there is nowhere for it to go in. Having fitted the on-board fan, I have just tried running it at 10W output for 30 minutes on a dummy load. Warm air is coming out of the top vent holes and, taking to top cover off, the PA module is warm to the touch, but not hot. 73 David G4DMP In a recent message, eric norris <[hidden email]> wrote ... This is odd because I drive my XV-144 with 1 mw as well, but at 10W output in digitial mode (1 min tx, 1 min rx) it gets way too hot to survive without a fan. I have one screwed to the shelf it sits on that blows air under the XV-144. Inelegant, but effective. I would like to see a fan retrofit kit as well, perhaps inside the top cover that would draw air through the unit and exhuast it out the top. -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ 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 |
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This is one of the disadvantages of buying when equipment is newly
available. There were no holes in my XV144 top and bottom case panels. I must remember to wait awhile in future until all the initial changes have been made. 73 David G4DMP In a recent message, Eric <[hidden email]> wrote ... > >My xv 144 has holes on both the top and bottom cover as it came from >the factory -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ 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 |
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Are there holes in the PCB Eric? I must check my unmade kit that's
been waiting 2 years! 73 de M0XDF, K3 #174 -- We can't solve problems by using the same kind of thinking we used when we created them. -Albert Einstein, physicist, Nobel laureate (1879-1955) On 14 Dec 2009, at 15:07, David Pratt wrote: > There were no holes in my XV144 top and bottom case panels. > In a recent message, Eric <[hidden email]> wrote ... >> >> My xv 144 has holes on both the top and bottom cover as it came from >> the factory > -- > David G4DMP > Leeds, England, UK > ------ ______________________________________________________________ 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 |
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In reply to this post by WD6DBM
I'm sure they'd send you new covers if you request them
Sent from my iPhone On Dec 14, 2009, at 7:07 AM, David Pratt <[hidden email]> wrote: This is one of the disadvantages of buying when equipment is newly available. There were no holes in my XV144 top and bottom case panels. I must remember to wait awhile in future until all the initial changes have been made. 73 David G4DMP In a recent message, Eric <[hidden email]> wrote ... My xv 144 has holes on both the top and bottom cover as it came from the factory -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ 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 |
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In reply to this post by M0XDF
Hi David,
If it is XV144, there is neither internal fan nor holes in the PCB beneath the fan area. For XV432, there is an internal fan plus holes under the fan area. As I mentioned in my earlier emails in this forum, I need to modify my XV144 in the way similar to the fan + PCB arrangement of XV432 so as to solve the heat issue. Without these modifications, XV144 will be extremely hot when operating under the power output 20W SSB/CW or 10W continous carrier modes. 73 Johnny VR2XMC ----- 郵件原件 ---- 寄件人﹕ "David Ferrington, M0XDF" <[hidden email]> 收件人﹕ [hidden email] 副本(CC) Eric <[hidden email]> 傳送日期﹕ 2009/12/14 (一) 11:14:35 PM 主題： Re: [Elecraft] XV-144 heat Are there holes in the PCB Eric? I must check my unmade kit that's been waiting 2 years! 73 de M0XDF, K3 #174 -- We can't solve problems by using the same kind of thinking we used when we created them. -Albert Einstein, physicist, Nobel laureate (1879-1955) On 14 Dec 2009, at 15:07, David Pratt wrote: > There were no holes in my XV144 top and bottom case panels. > In a recent message, Eric <[hidden email]> wrote ... >> >> My xv 144 has holes on both the top and bottom cover as it came from >> the factory > -- > David G4DMP > Leeds, England, UK > ------ ______________________________________________________________ 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 Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! ______________________________________________________________ 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 |
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