JUMA TRX-2A SW (Unofficial) / OH2JRY

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Following SW versions are based on Juha Niinikoski’s SW version 1.05.
SW modifications are downward compatible so SW can be used in the unmodified JUMA TRX2A but certain features are not useable.

Versions below are unofficial experimental versions and should not be mixed with the official versions. Author of these versions is Jyrki Pitkanen (OH2JRY).

NOTE: SW installation may need BOOTLOADER reloading by ICD 2 debugger because the original BOOTLOADER may be corrupted.


NOTE: v1.15e is apparently the final version for AD9851 DDS - Chip is fully used, no space for more! Future versions will apparently be using AD9952 DDS..

NOTE: When powering off, text "PSE WAIT" appears for a couple of seconds. You really should wait before disconnecting the cables, as the unit is writing settings into memory. If you disconnect the cables early, the unit will fall back to default settings, losing all the settings you've made so far.


Ohjelmistoversiot perustuvat Juha Niinikosken (OH2NLT) virallisen JUMA TRX-2A ohjelmiston versioon 1.05. Muokatut ohjelmistot ovat alaspäin yhteensopivia, joten näitä ohjelmistoja voi käyttää myös muokkaamattomassa JUMA TRX-2A:ssa, mutta jotkin toiminnoista eivät tällöin ole käyttökelpoisia.

Nämä ohjelmistot ovat epävirallisia, kokeellisia versioita, eikä niitä pidä sekoittaa virallisen jakelun versioihin. Nämä versiot ovat Jyrki Pitkäsen (OH2JRY) käsialaa.

Alkuperäinen dokumentaatio englanniksi, muokattu Wikiä varten. Suomenkielinen sisältö voi olla puutteellinen!


Software for AD9952

1.21e Version 1.21e includes all modifications of the version 1.17e in addition of the following changes:
  1. Max. number of VFO memories is now 279. VFO memory is shown by the following way:
    • Memories under 100 as numbers (1 ->99) and memories above 100 as a letter followed by a number (A0 = 100, B1 = 111)
  2. In transverter operation display can show correct operating frequency because now transverter offset can be saved per memory channel (display limit 999999.99 kHz).
  3. SWR alarm will be cleared automatically after transmission (TX->RX).

NOTE: Requires factory default settings!

n/a Version 1.17e includes all modifications of the version 1.16e in addition of the following changes:
  1. 1.Max. number of VFO memories is now 359. VFO memory is shown in the following way:
    • Memories under 100 as numbers (1 ->99) and memories above 100 as a letter followed by a number (A0 = 100, B1 = 111,Z9 = 359)

NOTE: Requires factory default settings!

n/a Version 1.16e includes all modifications of the version 1.15e in addition of the following changes:
  1. VFO memory information includes now also LTX (rear panel input) and TRVR (transverter) settings.

NOTE: Requires factory default settings!

Software for AD9851

1.15e Version 1.15e includes all modifications of the version 1.14e in addition of the following changes:
  1. In configuration mode configuration also page number will be shown instead of plain “Select” or “Adjust” text (Sel:12, Adj:12).
  2. Number of VFO memories is now 99.

NOTE: Requires factory default settings!

n/a Version 1.14e includes all modifications of the version 1.14e in addition of the following changes:
  1. LTX connector mode (MIC/LINE) can be selected during transmission.
n/a Version 1.13e includes all modifications of the version 1.14e in addition of the following changes:
  1. LTX connector input mode can be selected (MIC/LINE). Input selection is available on pin 3 of IC4 on filter board (+5v = front connector, 0v = rear connector). This pin 3 signal is connected to the gates of the FET switches on the AUX board. Gates must be disconnected from pin 6 of IC6 on the main board!

NOTE: If you don’t have an AUX board this upgrade is useless! Requires factory default settings!

1.12e Version 1.12e includes all modifications of the version 1.11e in addition of the following changes:
  1. RIT potentiometer can be used for squelch or CW hold time adjustment. Selection is done in the configuration menu.
1.11e Version 1.11e includes all modifications of the version 1.10e in addition of the following changes:
  1. RIT adjustment is done using the VFO knob. RIT-potentiometer is used for squelch adjustment. During RIT operation short push

of the VFO button will zero RIT offset, long push of the VFO button will add the RIT offset to the current frequency and then zero the RIT offset.

n/a Version 1.10e includes all modifications of the version 1.9e in addition of the following changes:
  1. Changing the VFO memory will turn RIT off.
1.9e Version 1.9e includes all modifications of the version 1.8e in addition of the following changes:
  1. 1.CW paddle polarity page added to the CONFIG menu (Dot->Dash, Dash->Dot)..

NOTE: Requires factory default settings !!!

1.8e Version 1.8e includes all modifications of the version 1.7e in addition of the following changes:
  1. CW TX break in hold time adjustment added into the config menu.

NOTE: Requires factory default settings !!!

1.7e Version 1.7e includes all modifications of the version 1.6e in addition of the following changes:
  1. Config menu page will be selected using VFO knob. Short push of the CONFIG button will toggle between config page select and page adjust.
1.6e Version 1.6e includes all modifications of the version 1.5e in addition of the following changes:
  1. Progressive tuning VFO tuning mode added (P).
  2. Long press of “FAST” button in “V” tuning mode will return previous tuning mode before “V” (short press will change to “P” tuning mode).
1.5e Version 1.5e includes all modifications of the version 1.4e in addition of the following changes:
  1. Overflow problem in V (very fast) tuning fixed.
1.4e Version 1.4e includes all modifications of the version 1.3e in addition of the following changes:
  1. Default sideband be will selected automatically according to the band (LSB if < 8 MHz else USB).|-
1.3e Version 1.3e includes all modifications of the version 1.2.1e in addition of the following changes:
  1. TUNE mode can be activated during transmission by pressing MODE button.
1.2.1e Version 1.2.1e includes all modifications of the version 1.2e in addition of the following changes:
  1. If Line-in mod hasn't been done, selecting LTX HW = Enabled, the problem with TX behavior is resolved.
1.2e Version 1.2e includes all modifications of the version 1.1e in addition of the following changes:
  1. Line TX software control added. New commands in the TRX2 protocol:
    • ”?L” is query
    • “=L1” is line TX on
    • “=L0” is line TX off (=RX on)

In configuration menu choices are: “LTX = Disabled”, “LTX HW = Enabled” and “LTX SW = Enabled”.

  1. When SW LTX is selected after HW LTX, TX may "get stuck" if no line-in mod has been done. PWR OFF/ON is the solution for this situation.
1.1e Version 1.1e includes all modifications of the version 1.05r in addition of the following changes:
  1. This version is based on the official version 1.06.
  2. Yaesu CAT read TX status command bug fixed .
  3. Low frequency BPF switch points changed for better performance. Lowest filter is changed in 300kHz and next in 600kHz. Others are as before.
  4. TX audio default filter changed from 2,678kHz to 2,586kHz.
  5. TX On/Off command added to JUMA-TRX2 protocol. See protocol.
  6. Version naming convention changed.
1.05r2 Version 1.05r2 includes all modifications of the version 1.05r in addition of the following changes:
  1. SCAF filter for TX: high frequency limit can be adjusted within the range of 800-3000Hz. Adjustment can be done "on the fly"
1.05r Version 1.05r includes all modifications of the version 1.05q in addition of the following changes:
  1. In SSB modes TX SCAF filtter min. frequency changed to ~800Hz (for digital modes).
1.05q Version 1.05q includes all modifications of the version 1.05p in

addition of the following changes:

  1. During SSB transmission transmitter SCAF filter can be adjusted by pressing long FILTER button. Filter can be adjusted from 1.5kHz to 3kHz. Default is 2.7kHz. Each memory channel has own tranmitter SCAF adjusment.
1.05p Version 1.05p includes all modifications of the version 1.05o in addition of the following changes:
  1. CW reversed info is saved on VFO memory.
  2. In Transverter mode “- TRVR –“ text will will shown instead of power bar.
  3. Serial port 2 can be used to control Voice memory or PA100 band. In AD9952 software version serial port 2 is used only for PA100 band control. Selection is done in Config menu.
1.05o Version 1.05o includes all modifications of the version 1.05n in addition of the following changes:
  1. Frequency will be loaded to DDS only when the frequency has been changed.
1.05n Version 1.05n includes all modifications of the version 1.05m in addition of the following changes:
  1. Each memory channel has own SCAF filter settings.
  2. Number of memories increased to 35.
1.05m Version 1.05m includes all modifications of the version 1.05L in addition of the following changes:
  1. Config page number will be saved in shut down..
1.05L Version 1.05L includes all modifications of the version 1.05k in addition of the following changes:
  1. Long press of the FILTER button will activate filtter width configuration.
  2. LOCK function is not available during configuration (CONFIG).
1.05k Version 1.05k includes all modifications of the version 1.05i in addition of the following changes:
  1. LOCK function will lock all buttons and the VFO knob except the PWR button.
  2. VFO mode (S/V) will be stored in shut down.
1.05i Version 1.05i includes all modifications of the version 1.05g in addition of the following changes:
  1. Number of VFO memories has been added to max. 30 and memories are now numbers instead of letters (1 - 30).
  2. Pressing the VFO button will change to the VFO "select" mode and the VFO memory will be changed using the VFO knob.In the "tuning" mode there is a text "V: " on the display and in the memory "select" mode there is a text "S: " on the display. VFO memory will be changed in the VFO "select" mode. VFO frequency will be changed in the "tuning" (V: ) mode. In the "tuning" mode the "Split" test will be shown in the split mode and the text "S: S" in the VFO "select" mode. Long press of the VFO button will copy content of the memory location 1 to the memory location 2 in the “split” mode. In the “split” mode the memory location 1 is used for receiving and the memory location 2 is used for transmitting.
  3. Filtter texts have been changed by the following way: WID -> W, MID -> M, NAR -> N.
  4. AGC speed information is now displayed on the upper right corner of the display. Long press of the RIT button will toggle the AGC speed (fast/slow). On the display "F" means fast and "S" means slow. In the "config" menu long press of the RIT button will do the same as in the SW version 1.05g.
1.05g The initial custom version based on official 1.05 software
  1. In VFO stepping rounding errors are fixed.
  2. VFO steps are now: S (10Hz), M (100Hz), F (1kHz) and F (10kHz).
  3. VFO memories include now filtter and AGC information in addition of frequency and mode.
  4. "Line TX" feature added to ease digimode transmissions. To use this feature hardware modification is needed (described in an other document). "Line TX" (LTX) feature will turn microfone gain to the line position and turn the audio compression off. During the "Line TX" operation the text "LTX" will be displayed instead of the "TX" on the display.
  5. Long press of the MODE button will toggle the SSB mode during the SSB operation (LSB<->USB). In the CW mode long press of the MODE button will toggle CW (LSB) <-> CW (USB). In the CW (USB) mode the text "CWr" will be on the display. The "CWr" is meant for special use and not stored in the VFO memory.
  6. Noise Blanker option in the config menu has been changed to the "TRVR Enabled" / TRVR Disabled" and used for the transverter control. This modification needs an addon HW board and has not any effect without the addon HW board. The transverter modification is described in an other document.
  7. RIT function is now +/- 4kHz.
  8. Long push of the RIT button will reset the position counter in the config menu to the AGC speed choice.
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