Search found 180 matches

Return to advanced search

Re: Juma PA100-D auto band tracking

Hi, Guntram, Glad that your problems are sorted, that was a nice Xmas present for you. Also, just to say that even though the Juma TRX-2 and PA-100D have now been 'retired' I will still be providing technical and software support. You now have the latest version for the PA-100D, I do not envision an...
by 5B4AIY
28 Dec 2019 14:14
 
Forum: Juma Discussion
Topic: Juma PA100-D auto band tracking
Replies: 5
Views: 1266

Re: Time goes by

Hi, Matti, I have to say that I am really sad that the Juma TRX-2 and PA-100D are now being retired. I well understand the commercial aspects of producing these kits, and, to be honest, I had rather hoped that there would be a TRX-3 with improved DDS chip as well as a couple of other hardware improv...
by 5B4AIY
13 Dec 2019 09:47
 
Forum: Juma Discussion
Topic: Time goes by
Replies: 4
Views: 414

Re: New to me TRX2 - Advice needed regarding updates

Hi, Christoph, Welcome to the world of Juma Radio! Hardware Upgrades Spur Elimination Module Your main board, revision 'B' will need the Spur Elimination Module if you are to take advantage of the improved receiver performance that accompanies this modification. The later board, revision 'C', incorp...
by 5B4AIY
18 Aug 2019 07:30
 
Forum: Juma Discussion
Topic: New to me TRX2 - Advice needed regarding updates
Replies: 2
Views: 904

Juma TRX-2 Firmware

There is now an updated version of the firmware for the Juma TRX-2 transceiver. This update, Version 5.00a Build 8, improves the serial port mode selection by adding a DISABLED choice to ensure that stray characters are rejected. This version can be safely loaded over a previous version 5, but if yo...
by 5B4AIY
04 Jul 2019 07:12
 
Forum: Juma Discussion
Topic: Juma TRX-2 Firmware
Replies: 0
Views: 880

JUMA TRX-2 Version 5.0a Build 8

Build 8 This update makes the User Configuration menu more consistent. In the Calibration and User Configuration menus if a parameter adjustment was not consistent with the current settings, then that page was skipped. For example, in the Calibration menu, if you disable the over-voltage alarm, the...
by 5B4AIY
23 May 2019 06:37
 
Forum: Juma Firmware by 5B4AIY
Topic: JUMA TRX-2 Version 5.0a Build 8
Replies: 0
Views: 1551

Re: JUMA 100D with LDG AT-100 ProII

Hi, Greg, There are several ways to avoid this high SWR trip. The first is to match the antenna using the transceiver's power with the amplifier in the STANDBY mode, and then switch to the OPERATE mode. It is always somewhat risky to match the antenna with an auto-tuner with the linear operating at ...
by 5B4AIY
13 Jan 2019 09:14
 
Forum: Juma Firmware by 5B4AIY
Topic: JUMA 100D with LDG AT-100 ProII
Replies: 2
Views: 918

Re: Juma PA100-D auto band tracking

Hi, Guntram, Let's see if we can find out what is wrong. If you have my version of the firmware loaded, then there are a couple of tests in the Serial Test Suite that will help. In the User Configuration menu ensure that you have the Frequency Sense mode selected. Also, ensure that the serial port m...
by 5B4AIY
02 Jan 2019 10:58
 
Forum: Juma Discussion
Topic: Juma PA100-D auto band tracking
Replies: 5
Views: 1266

Re: Juma TRX2A - new purchase

And when you have finished, why not give my firmware a try? The latest version is available on this website. If you need any assistance there are plenty of us available to provide help.
73, Adrian, 5B4AIY
by 5B4AIY
11 Dec 2018 07:47
 
Forum: Juma Discussion
Topic: Juma TRX2A - new purchase
Replies: 4
Views: 1243

Re: JUMA 100D Firmware Update

Hi Greg, Glad that you have managed to load the new firmware. As for calibrating the frequency counter, refer to the instructions on page 18 of the User Manual. With an input power of 100mW to 5W, not critical, inject an accurately known CW signal on 10m. I suggested the default Juma TRX-2 10m band ...
by 5B4AIY
04 Dec 2018 07:11
 
Forum: Juma Firmware by 5B4AIY
Topic: JUMA 100D Firmware Update
Replies: 14
Views: 1732

Re: JUMA 100D Firmware Update

Hi, Greg, Excellent! Yes, in order to access the test commands the RS-232 port has to be in the TEST mode. I apologise if I did not make this clear. I am relieved that there were no hardware problems, removing chips and replacing them is a difficult job and involves the risk of seriously damaging th...
by 5B4AIY
01 Dec 2018 14:18
 
Forum: Juma Firmware by 5B4AIY
Topic: JUMA 100D Firmware Update
Replies: 14
Views: 1732
Next

Return to advanced search

cron