700m asl dye4
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- Kategori: Blog
- Publiceret: Fredag, 26 september 2014 17:06
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in memo of JA4BJZ Katsu
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- Kategori: Blog
- Publiceret: Mandag, 01 september 2014 19:28
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In memory of Katsu JA4BJZ . 3 from left who died 22 August 2014
from left OZ7OX,OZ1DJJ,JA4BJZ,Lis and JA5AQC Japan 2013
FT857d 6m preamp repair
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- Kategori: Blog
- Publiceret: Fredag, 21 marts 2014 22:53
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FT857d 6m preamp repair
I'm using a Yaesu FT857d to monitering 6m videos, the antenna is a verticle and one day I discover the RX was dead on 6m 50MHz. After studie the schematic from the service manual I found there was a preamp on 50Mhz. The preamp using a 2SC5374 semiconductor, I ordre one from ebay but then probely cheaper from Yaesu , here how to located the preamp
Link to FT857d PA Unit and location of Q3034 pdf
remove the bottom cover and you will quick located Q3034, left from the ferrit coil
Oh boy thease SMD componets are so small, so be careful when replace it.
CQWW 2013 new record in Denmark
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- Kategori: Blog
- Publiceret: Fredag, 16 Maj 2014 09:43
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JA4FHE+JA5AQC
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- Kategori: Blog
- Publiceret: Fredag, 07 marts 2014 10:31
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In 2013 I was visit Japan togeather with Ole OZ7OX, here a nice picture of JA4FHE(left) Aki and JA5AQC(right) Masaru
