| JAPAN RADIO CO. JRC NRD-525-535-545-345 User Define Charts |
As I cannot supply you with schematics or owners manuals for these sets (sorry). I do have the user define function lists for the NRD-525, NRD-535, NRD-345 and of course the NRD-545. So if you scare up one of these sets up in the used market and have no manual, at least you will have this information via my piles of papers. Be sure and visit the main page as the NRD-545 and NRD-345 are covered elsewhere on this site . Dave N9EWO.
| # | JRC NRD-525
User Defined List (this chart via n9ewo) |
| 0 | SSB Offset (serial numbers BR 36471 and above only) |
| 1 | Display 10 Hz Digit |
| 2 | Clock Colon |
| 3 | Keyboard Beep |
| 4 | Bandpass Filters (pass) |
| RUN | Tuning Speed (serial numbers BR 36771 and above only) |
| # | JRC NRD-535
User Defined List (press MEMO + FUNCTION + ENT/khz) (Use ENT/khz + Knob or Keys to select) |
Values (this chart via n9ewo) |
| 1 | Operation of Timer Relay | 0: Normally OFF 1: Normally ON 2: ON/OFF according to Squelch status |
| 2 | Input Tuning Circuit (Filters) | 0: Pass (shows on display) 1: Filters ON |
| 3 | BFO Offset Frequency in CW Mode | -5000 to +5000 Hz |
| 4 | RTTY Baud Rate | 37 to 75 Baud |
| 5 | RTTY Shift Width | 0: 170 Hz 1: 425 Hz 2: 850 Hz |
| 6 | RTTY Polarity | 0: Reverse 1: Normal |
| 7 | Display of S-Meter | 0: Single Line Display 1: Bar Graph |
| 8 | SSB Display Frequency | 0: Display Shift 1: Local Shift |
| 9 | Display of 10 Hz Digit | 0: NO 1: YES |
| 10 | Clock Colon (Blink Toggle) | 0: NO 1: YES |
| 11 | Beep Tone | 0: OFF 1: ON |
| 12 | Scan Rate | 0.5 sec/channel to 5 sec/channel |
| 13 | Sweep Rate | 0.5 sec/step to 5 sec/step |
| 14 | Output of RTTY demod. | 0: OFF 1:ON |
| 15 | Auto Stop (AS) Function | 0: OFF 1: ON |
| 16 | Pulse Rate of Tuning Encoder (speed) | 0: 250 pulses/rev. 1: 1000 pulses/rev |
| # | JRC NRD-545 User Defined Functions | Values (this chart via n9ewo) |
| 1. | 1 Hz tuning(SSB/CW/RTTY/AM frequency of less than 30 MHz) | 0: 1Hz not added to tuning step OFF 1: 1Hz added to tuning step |
| 2. | 10kHz tuning(SSB/CW/RTTY/AM frequency of less than 30 MHz) | 0: 10kHz not added to tuning step 1: 10kHz added to tuning step |
| 3. | 1 kHz tuning(SSB/CW/RTTY/AM/FM frequency of less than 30 MHz) | 0: 1KHz 1: 5kHz 2: 6.25kHz 3: 9kHz tuning step |
| 4. | 100 Hz tuning(FM mode/AM Frequency of more then 30MHz) | 0: 100Hz not added to tuning step 1: 100Hz added to tuning step |
| 5. | 5 kHz tuning(Frequency of more then 30MHz) | 0: 5kHz 1: 6.25kHz 2: 9kHz tuning step |
| 6. | 10 kHz tuning | 0: 10kHz 1: 12.5kHz 2: 20kHz 3: 25kHz 4: 30kHz 5: 50kHz tuning step |
| 7. | Tuning step automatic selection | 0:Automatic tuning step OFF 1:Automatic tuning step ON |
| 8. | Number of tuning knob pulses | 0: 1000 pulses/turn 1: 500 pulses/turn 2: 250 pulses/turn |
| 9. | Meter indication | 0: Single Display 1: Bar display 2: Peak Hold Display |
| 10. | Beep tone | 0:Beep OFF 1:Beep ON |
| 11. | Scan auto stop | 0: AUTO STOP OFF 1: AUTO STOP ON |
| 12. | Unwritten channel skip | 0: Skip OFF 1: Skip ON |
| 13. | Timer relay operation | 0: Timer relay OFF 1: Timer relay always ON 2: Controled with Squelch |
| 14. | CW mode BFO offset frequency | -2550 to +2550(Hz) (10 hz steps) |
| 15. | RTTY baud rate (baud) | 37-75(baud) |
| 16. | RTTY shift width | 0: 170Hz 1: 425Hz 2: 850Hz |
| 17. | RTTY polarity | 0: Reverse 1: Normal |
| 18. | SSB display frequency | 0: Display shift 1: Local shift |
| 19. | Display time colon blinking | 0: Colon blinking OFF 1: Colon blinking ON |
| 20. | Scan rate | 0.3-5.0(sec.)0.5 sec./CH |
| 21. | Sweep rate | 0.05-0.5(sec.) 0.05sec./step |
| 22. | Scan auto stop time setting | 0 to 10 seconds (0.5sec.steps) |
| 23. | RTTY decoding output | 0: Do not output 1: Output |
| 24. | Input tuning circuit | 0: Pass 1: Use |
| 25. | RTTY unshift ON space | 0: OFF 1: ON |
| 26. | RTTY error display | 0: Display space 1: * Display |
| 27. | Filter Hold of Noise Reduction (change in text from eariler manual--was called "Line Enhancer") | 0: ON 1: OFF |
| 28. | Panel lock | 0: Lock tuning knob 1: All dials and buttons |
| 29. | Noise reduction next number change | 0.0000 (effect) to 0.0255 (No effect) in 0.0001steps |
| 30. | Beat canceller next number change | 0.0000 (effect) to 0.0255 (No effect) in 0.0001steps |
| 31. | Squelch LED lighting change | 0: Lights when squelch is closed 1: Lights when squelch is open |
| 32. | Digital IF Filter setting slope | 0: DSP SHARP filter 1: DSP LOOSE filter |
FUNCTION
+ |
JRC NRD-545 "Function"
Button Operations (this chart via n9ewo) |
BWC |
Changes BWC Step (either 10 or 100 Hz) |
ATT |
Quick toggle of #24 above "Input tuning circuit", Useful when scanning memories..no relay chattering. (May not work on all samples ??) |
ENT/kHz |
Enter User Defined Functions (Above) |
CH |
Memory Channel Save |
FM/WFM |
Turn Stereo Mode ON/OFF (FM Wide Mode with CHE-199 Option Installed) |
CLOCK |
Set Sleep Time |
VFO |
Transfer Memory InformationTo VFO |
| PUSH AND HOLD AT
POWER UP (Power OFF and Repeat To Reverse Setting) |
JRC NRD-545 "Power Up"
User Defined Functions (this chart via n9ewo) |
"."
|
Unknown, but the display will show a number like "12 46 13" (varies). Will not receive while in this mode. Just rotating the main tuning knob will restore the set to normal. |
ENT/kHz |
Toggles "Low End" Receive Range Down To 10 kHz. |
USB/LSB |
Allows USB/LSB and CW/RTTY Modes To Be Selected When CHE-199 Converter Is Installed. |
CLR |
Memory Channel RESET (WARNING:Clears All Memories) and User Defined Functions To Default Settings. |
CLR |
Resets User Defined Functions To Defaults.(Keeps Memory Channels As They Were) |
CLOCK |
Toggles Seconds Display On Clock |
| PUSH AND HOLD AT
POWER UP (Power OFF and Repeat To Reverse Setting) |
JRC NRD-345 "Power Up"
User Defined Functions (this chart via n9ewo) |
MODE |
Toggles Keyboard "Beep" from Speaker (on/off) |
mtr |
Resets all "Meter Band" data |
FILTER |
Adds "AUX" Filter Selection |
CLR |
Initializes VFO and Other
Settings to Factory Defaults (does not clear Memory Channels) |
MEMO |
Clears all Memory Channels |
AGC |
Adds AGC "OFF" Selection |
NOTE: BELOW CHART IS FOR THE NRD-535 .
| Jumper |
JRC NRD-535 "CDC-493AD CPU
Board" Resistor Jumpers (this chart via n9ewo) |
RJ0 |
Removing this jumper changes the bandwidth selector switch so that the filter in the "Aux" spot is selected to the "Narrow" spot, and the "Narrow" to the "Aux" (A Flip-Flop). |
RJ1 |
Not Installed in USA version (No Jumper), Unknown |
RJ2 |
Not Installed in USA version (No Jumper), Unknown |
RJ3 |
Unknown |
RJ4 |
Unknown |
RJ5 |
Alt "FREQ" button. Normally frequency selected during "CHAN" mode remains on display after "FREQ" button is used. Remove this jumper and previous frequency will re-appear when "FREQ" button is hit. |
RJ6 |
AGC "OFF" bypass. When removed , will ONLY be able to select AGC FAST and SLOW. Will be unable to select AGC OFF. |
RJ7 |
Clock seconds display. When removed, clock display will also seconds (also seconds on computer inteface). |
