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Re: JUMA PA1000, Please a hysteresis in the fan routine

Matti,

i did see the fan modification, and did this this modification two years ago ,
we had some contact about that.

And as for modifications, i did an other one. I a made an switch in the front of the amp as i can not easily reach the backside to switch it on/off.
by PE5TT
31 Oct 2022 16:27
 
Forum: Juma Discussion
Topic: JUMA PA1000, Please a hysteresis in the fan routine
Replies: 7
Views: 17183

Re: JUMA PA1000, Please a hysteresis in the fan routine

Thank you very much, flashed the firmware into the PA1000 and are now waiting for ~30 degrees ambient temperature. :lol:
by PE5TT
31 Oct 2022 12:50
 
Forum: Juma Discussion
Topic: JUMA PA1000, Please a hysteresis in the fan routine
Replies: 7
Views: 17183

JUMA PA1000, Please a hysteresis in the fan routine

JUMA PA1000, Please a hysteresis in the fan routine, now that temps go up my amp sits idle at about 30 to 31 degree, this means the fan keeps switching on/off all the time, every second or so. The fan is always very nervous on the JUMA PA1000, personally i would like a more steady curve not changing...
by PE5TT
12 Jun 2022 16:48
 
Forum: Juma Discussion
Topic: JUMA PA1000, Please a hysteresis in the fan routine
Replies: 7
Views: 17183

JUMA PA-1000 on 4 meter possible ?

Hello, I still got a 9th order LPF for 70MHz capable of handling 600Watts lying around here from another project I wonder if its possible to make a few hundred watts with the Juma PA1000 setting the band to manual and selecting “AllMHz” and connect the LPF filter behind the JUMA PA-1000 ? Except for...
by PE5TT
15 Aug 2020 17:04
 
Forum: Juma Discussion
Topic: JUMA PA-1000 on 4 meter possible ?
Replies: 0
Views: 12261

Omnirig to Juma banddata utillity

Hello, I few months back i became the owner of JUMA PA-1000, To keep the amp in sync with my transceiver i wrote a small program that send banddata to the amp from Omnirig. It does this using the Elecraft protocol so select that in the amplifier, match the baud speed. you can switch bands on/off as ...
by PE5TT
10 Aug 2020 16:45
 
Forum: Juma Discussion
Topic: Omnirig to Juma banddata utillity
Replies: 0
Views: 11206

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