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Juma TRX-2 Firmware v1.20a Build 14

This version of the firmware, v1.20a Build 14 dated 19/APR/2015 is essentially a maintenance build, but there are a couple of differences in the way it operates. Note that no EEPROM mapping changes are made, and so this firmware can be safely loaded over an earlier build. However, as with all firmwa...
by 5B4AIY
17 Apr 2015 07:05
 
Forum: Juma Firmware by 5B4AIY
Topic: Juma TRX-2 Firmware v1.20a Build 14
Replies: 2
Views: 4638

Re: For more beautiful JUMA(LCD display unit)

To answer your question, these displays are the newer Organic LED displays that offer a higher contrast and brighter display compared to the usual LCD variety. They are available in a number of different formats from a variety of manufacturers, but those of particular interest are the ones that are ...
by 5B4AIY
17 Feb 2015 15:08
 
Forum: Juma Discussion
Topic: For more beautiful JUMA(LCD display unit)
Replies: 4
Views: 6430

Re: For more beautiful JUMA(LCD display unit)

As you say, a much better display. They should also enhance the Juma TRX-2 and PA-100D. However, where can we purchase these? I would then consider replacing them in my TRX-2/PA-100D, and would also ensure that that firmware was compatible.
73, Adrian, 5B4AIY
by 5B4AIY
14 Feb 2015 06:46
 
Forum: Juma Discussion
Topic: For more beautiful JUMA(LCD display unit)
Replies: 4
Views: 6430

Juma PA-100D v1.06b - Build 4

Version 1.06b Build 4 improves the accuracy of the frequency counter, and provides a number of minor User Interface enhancements, as well as fixing a minor annoyance and a bug. Frequency Counter Accuracy The choice of master oscillator frequency for the micro-processor was largely based on economics...
by 5B4AIY
08 Feb 2015 13:02
 
Forum: Juma Firmware by 5B4AIY
Topic: Juma PA-100D v1.06b - Build 4
Replies: 0
Views: 3569

Re: Juma TRX-1 Version 7.1a

Hi, Petr, The latest version of the firmware is 7.1a, as posted on this website entry. Unfortunately I do not have either the TX-1 or the RX-1, and thus I have not 'ported' the firmware to these rigs. There is no reason why my firmware would not work on the RX-1/TX-1, it is just that as do not have ...
by 5B4AIY
28 Jan 2015 08:20
 
Forum: Juma Firmware by 5B4AIY
Topic: Juma TRX-1 Version 7.1a
Replies: 6
Views: 9761

Re: New Firmware for the Juma TRX-2

Hi, Bob, The short answer is no, it is of little consequence. When I re-designed the measurement system I decided to make maximum use of the 12-bit A-D converter. The full explanation is in Annex F, page 66 of the User Manual, but to answer your question, a change of +/-1 to the current calibration ...
by 5B4AIY
15 Jan 2015 16:46
 
Forum: Juma Discussion
Topic: New Firmware for the Juma TRX-2
Replies: 2
Views: 4204

New Firmware for the Juma TRX-2

There is now a new version of my firmware for the Juma TRX-2 (Version: 1.20a) that adds a new feature, as well as greatly improving the existing Auto-Equalise function. Note that as this new firmware uses an additional word of EEPROM memory there will be a checksum error on initial power up. Please ...
by 5B4AIY
12 Jan 2015 09:50
 
Forum: Juma Discussion
Topic: New Firmware for the Juma TRX-2
Replies: 2
Views: 4204

Juma TRX-2 Firmware v1.20a

Firmware Version 1.20a Build 10 for the Juma TRX-2 introduces a new feature, (dBm Power Display) and greatly modifies an existing feature, (Auto-Equalise) as well as improving an existing feature (Very Fast Tuning Rate exit). New Feature The latest version of the firmware for the companion PA-100D l...
by 5B4AIY
12 Jan 2015 09:40
 
Forum: Juma Firmware by 5B4AIY
Topic: Juma TRX-2 Firmware v1.20a
Replies: 1
Views: 5361

New Juma PA-100D Firmware

There is now a new version of my firmware for the Juma PA-100D. This version adds a frequency counter; improved accuracy of the power meter at low powers; improved accuracy of the SWR display; and the RF power meter can now display powers in either Watt or dBm. For full details, please refer to my f...
by 5B4AIY
24 Nov 2014 14:32
 
Forum: Juma Discussion
Topic: New Juma PA-100D Firmware
Replies: 0
Views: 3726

Juma PA-100D v1.06a

I had not intended adding any further features or modifications to the Juma PA-100D amplifier, but a recent Field Day problem prompted me to re-think this decision. The problem could have quite easily been solved had there been some simple test equipment available. In an effort to preclude this from...
by 5B4AIY
24 Nov 2014 14:29
 
Forum: Juma Firmware by 5B4AIY
Topic: Juma PA-100D v1.06a
Replies: 0
Views: 4048
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