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Re: PA1000 Standby/Off power

Ian, I have tested only 100W but I don't see any problem with 200W thru PA1000 when it is STBY or power OFF. The TRX connector is connected to ANT connector via T/R relay and a 100nF capacitor. See the attached simplified schematics. Note. Be careful when switching PA1000 to OPER state - remember to...
by OH7SV
17 Mar 2024 05:17
 
Forum: Juma Discussion
Topic: PA1000 Standby/Off power
Replies: 2
Views: 607

Re: Looking for a Juma TX500

Thomas,

Have look roWaves site https://rowaves.com/juma-tx-500-60w-500 ... ansmitter/

73 Matti OH7SV
by OH7SV
17 Mar 2024 04:31
 
Forum: Juma Discussion
Topic: Looking for a Juma TX500
Replies: 1
Views: 33

Re: PCB or kit for TRX2A Roofing filter FL2

Hello,

I still have 3 pcs of FL2 roofing filter PCBs for TRX2A. Let me know if you are interested.

Matti OH7SV
by OH7SV
03 Dec 2023 20:32
 
Forum: Juma Discussion
Topic: PCB or kit for TRX2A Roofing filter FL2
Replies: 16
Views: 53547

Re: TRX2 DDS Gerber file

Hello,

I checked the trx2-dds-B Gerber files. I looked like there was a conflict between mils and mm. It is now fixed.
See the attached zipped Gerber files trx2-dds-B.zip
It is also now updated to http://www.jumaradio.com/juma/juma-geber-files.html

73 Matti OH7SV
by OH7SV
03 Dec 2023 20:07
 
Forum: Juma Discussion
Topic: TRX2 DDS Gerber files
Replies: 3
Views: 11979

Re: TRX2 DDS Gerber files

Hello Frédéric,

I will check the DDS board PCB Gerber files and fix it.

73 Matti OH7SV
by OH7SV
03 Dec 2023 19:18
 
Forum: Juma Discussion
Topic: TRX2 DDS Gerber files
Replies: 3
Views: 11979

Good news! JUMA PA1000 manufacturing will continue

Hello all,

We are pleased to announce that we have agreed with roWaves Technologies to continue manufacturing the JUMA PA1000.
Please contact https://rowaves.com for availability etc.

See also JUMA PA1000 Finland site here www.jumaradio.com/juma-pa1000

73 Matt OH7SV
by OH7SV
22 Nov 2023 19:17
 
Forum: Juma Discussion
Topic: Good news! JUMA PA1000 manufacturing will continue
Replies: 1
Views: 13511

Re: PCB or kit for TRX2A Roofing filter FL2

Hi all,

I checked my boxes => Good news!
I still have 4 pcs of FL2 roofing filter PCBs for TRX2A

If you are interested I can sell those PCBs with a price of 5€ + packing/shipping 4€ = total 9€ each.

73 Matti OH7SV
by OH7SV
16 Nov 2023 15:01
 
Forum: Juma Discussion
Topic: PCB or kit for TRX2A Roofing filter FL2
Replies: 16
Views: 53547

Re: PA1000 Suspended

We are sorry that we are not able to manufacture the JUMA PA1000 amplifier right now, even though there is a strong demand for it. DXpeditions in particular are very interested in it because it is so light weight, only 5.5kg. It is true that the availability of parts has deteriorated and the part pr...
by OH7SV
29 Oct 2023 17:28
 
Forum: Juma Discussion
Topic: PA1000 Suspended
Replies: 3
Views: 14247

Re: ASW-5 Ant switch use with PA1000 and KX3

Hello Gene,

That's right. You can use a standard RS232 cable from JUMA PA1000 COM2 connector to ASW5 BCD input connector.
See more here www.jumaradio.com/JUMA-ASW5/JUMA-ASW5-A ... witch.html

73 Matti OH7SV
by OH7SV
24 Aug 2023 13:32
 
Forum: Juma Discussion
Topic: ASW-5 Ant switch use with PA1000 and KX3
Replies: 1
Views: 12071

Re: PA1000 firmware update failure

Hello Jo, Most probably you have this problem. See the Note. NOTE1. After installing the bootloader client, you must replace the original xml-file (ibl_dspiclist.xml) with this file ibl_dspiclist.xml Click mouse right button to save it. The xml file is typically located in hard disk folder C:\Progra...
by OH7SV
24 Aug 2023 13:29
 
Forum: Juma Discussion
Topic: PA1000 firmware update failure
Replies: 2
Views: 12127
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