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Re: * * * VALUE L1-L2 TX136 * * *

Very good Hubert,

Enjoy using your JUMA TX136.
Stay safe!

73 Matti OH7SV
by OH7SV
02 Apr 2020 19:49
 
Forum: Juma Discussion
Topic: * * * VALUE L1-L2 TX136 * * *
Replies: 3
Views: 487

Re: * * * VALUE L1-L2 TX136 * * *

Hubert,

The value 680nH is correct. L1, L2 and C11 forms a 12MHz LPF filter to attenuate harmonics coming from the mixer IC2.
Check first that the 10MHz square wave (CLK/2) is coming to IC2 pin 14.

Matti OH7SV
by OH7SV
02 Apr 2020 15:17
 
Forum: Juma Discussion
Topic: * * * VALUE L1-L2 TX136 * * *
Replies: 3
Views: 487

JUMA PCB Gerber files available for the retired kits

We are happy to inform that the PCB Gerber files are available for all the retired Juma radios.

The PCB Gerber files can be download here www.jumaradio.com/juma/juma-geber-files.html

73 Matti OH7SV
by OH7SV
01 Apr 2020 05:39
 
Forum: Juma Discussion
Topic: JUMA PCB Gerber files available for the retired kits
Replies: 0
Views: 414

Re: Time goes by

Very good Hubert,

Nice to hear that the PCB Gerber files helped you and you got your TX136 working!

73 Matti OH7SV
by OH7SV
01 Apr 2020 05:33
 
Forum: Juma Discussion
Topic: Time goes by
Replies: 7
Views: 1845

Re: Time goes by

We are happy to inform that PCB Gerber files are available for all the retired Juma radios.

The PCB Gerber files can be download here www.jumaradio.com/juma/juma-geber-files.html

73 Matti OH7SV
by OH7SV
22 Feb 2020 10:00
 
Forum: Juma Discussion
Topic: Time goes by
Replies: 7
Views: 1845

Re: Time goes by

Hello Hubert,

Nice to hear that you like JUMA TX500. Unfortunately the "small" kits are discontinued. We are currently focusing on JUMA PA1000.
My plan is to share also the remaining PCB Gerber files of the "small" Juma kits soon, including TX136.

73 Matti OH7SV
by OH7SV
14 Dec 2019 17:45
 
Forum: Juma Discussion
Topic: Time goes by
Replies: 7
Views: 1845

JUMA PA1000 with KX3 and PX3

Hello KX3 users, KX3 is a good companion with JUMA PA1000. If you have also a PX3 Panadapter you can get all the three tracking the frequency by connecting this way. http://www.jumaradio.com/juma-pa1000/PA1000-KX3-PX3.png JUMA PA1000 with KX3 and PX3 Note1. Place also PTT cable from KX3 ACC2 connect...
by OH7SV
10 Dec 2019 07:53
 
Forum: Juma Discussion
Topic: JUMA PA1000 with KX3 and PX3
Replies: 0
Views: 960

Time goes by

Hello Juma fans, Time goes by and it is sad to say that the older Juma rigs have retired. Good news is that all the documentation and the PCB gerber files are available for your projects http://www.jumaradio.com We are currently focusing on the 1kW amplifier JUMA PA1000. It is the lightest weight 1k...
by OH7SV
06 Dec 2019 21:15
 
Forum: Juma Discussion
Topic: Time goes by
Replies: 7
Views: 1845

Re: Juma PA1000

Hello Tilman, The switching to STBY state when changing a band is a default safety feature. That can be modified in the Service Pages so that PA1000 will stay in OPER state when changing a band and also when powering up. See more in the user manual found here http://www.jumaradio.com/juma-pa1000 73 ...
by OH7SV
06 Dec 2019 20:51
 
Forum: Juma Discussion
Topic: Juma PA1000
Replies: 4
Views: 2417

Re: Is Juma dead? ...new rig is coming?

Petr, Juma is not dead at all. We are focusing on JUMA PA1000. It is an ultra light weight 1kW amplifier. It is active and available http://www.jumaradio.com/juma-pa1000 Time goes by and the older Juma (kits) are retired but feel free to use all the documentation and the PCB Gerber files available i...
by OH7SV
06 Dec 2019 20:41
 
Forum: Juma Discussion
Topic: Is Juma dead? ...new rig is coming?
Replies: 1
Views: 1044
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