Quansheng UV-K5 - Manuale del Firmware IJV 3

The Quansheng UV-K5, K5(8), K6 and k5-plus radios have the option of being upgraded with unofficial firmware.
These updates are substantial to the point that there was a need to rewrite the manual, as the menu and functions are different.

I disclaim all liability in case of transmission outside the bands allowed by the manufacturer. What you do with your radio is at your own risk.

Please note that the use of this radio requires an HAM radio licence.

Updated on 14-4-2024

Preppersirius - Logo alpha
This manual is for version 3 of the IJV firmware.
If you wish to stay with version 2.9R5, follow this link.



1. IJV V3 o IJV X3 999 Ch ?

To make it clear from the outset, the IJV 3 version requires a certain level of expertise. For those who do not feel up to it, it is preferable to go for the stable version 2.9R5.
Inoltre si suddivide in due firmware:

IJV V3 for unmodified radios, with 200 channels.
IJV VX3 to take advantage of 999 channels. Requires physical intervention with replacement of an eeprom chip.

IJV X3 con 999CH

For the more daring, there is now the possibility of using 999 channels instead of the original 200. However, this requires a rather complex hardware modification: a chip has to be desoldered and re-soldered.

This involves replacing the original 8K eeprom (24C64) with a new 128K one, such as 24M01.

Where to buy 128K EEPROM 24M01: 🛒Link1,  🛒Link2, 🛒Link3.

Before making any changes, save the stored channels with CHIRP.
After replacing this memory, it will be necessary to install the dedicated firmware. The X variant is available alongside the normal version.
firmware_IJV_V3.bin ⇒ 200 channels.
firmware_IJV_VX3.bin ⇒ 999 channels.

To install VX3 firmware, follow the same procedure from Chapter 2.2 to 2.6.
Even switching from V3 to VX3 will require a Reset ALL.

The same applies to CHIRP: the module to be loaded to read the radio is the one named vX3: uvk5_IJV_vX3.py

⚠️ If you use the V3 firmware on a modified radio, only 200 memories will still be displayed. However, if you install the VX3 firmware on an intact radio, no memories will be displayed, only VFOs.

How to copy saved V3 channels to the VX3

The method is to open 2 instances of CHIRP with the V3 and VX3 modules respectively.

  1. With V3, read the previously saved file.
  2. With the VX3 read the modified radio.
  3. Copy the channels from CHIRP with V3 and paste them into the other CHIRP with VX3.

2. The IJV Firmware

Version 3 is totally different from its predecessor, you have a different radio in your hand.

2.1 Download Firmware-IJV
  • Click on the button to download the zip file. It contains the following files:
    • changelog.txt
    • firmware_IJV_V3.x.bin
    • installazione modulo per chirp.pdf
    • useful links.txt
    • uvk5_IJV_V3_xx.py
  • The procedure for using the CHIRP module is explained in chapter 8.1.
  • Should there be a problem with this firmware, you can always reload the official one and the radio will be exactly as it was before. Refer to chapter 2.3.
You can support us in our efforts with a donation.

To Fabrizio IU0IJV for creating the firmware.
To Sirius for creating the manual.

2.2 k5prog-win
  • To load the firmware into the radio you need the software k5prog.
  • + This programme allows you to save the configuration and calibration data recorded in the EEPROM. Indeed, is strongly recommended to do so.
  • Ci sono due versioni, una per le radio integre, con 200 canali e l’altra per le radio che hanno subito la sostituzione della eeprom per raggiungere 999 canali.
  • Nella versione X3, i tasti “Read e Write Full Eprom” leggeranno/scriveranno anche i dati di Calibration.

V3 (radio integra)

VX3 (radio modificata)

Start k5prog-win on Debian Linux.
  1. Follow this article: wine.htmlvalidator.com/install-wine-on-debian-12
  2. shell
    sudo adduser $USER dialout
  3. Restart the computer.
  4. Open a terminal and run:
  5. Agree to install MONO (it takes a few minutes to download) and the default options.
  6. Download k5prog-win from the link in this manual and put it in a folder of your choice.
    Enter the folder with a terminal and run:
    wine k5prog_win-v1.26_IJV.exe
2.3 Backup of Calibration and Original Configuration
  • As mentioned above, it is important to safeguard the original Calibration and Configuration files:
  • Install the cable driver . Check that it is well recognised by Windows and k5prog-win.
    → Start the radio normally (user mode), connect the cable from the computer to the radio, start k5prog-win. Using the buttons: "Read Configuration" and "Read Calibration", save those two files in your folder.
  • If you need to restore the radio as it was originally, it is not enough to put back the original firmware, you will also have to load the original "my_calibration" and "my_config" files:
    → with the k5prog-win programme via the 'Write Configuration' and 'Write Calibration' buttons.
    These files include a hundred or so parameters such as the 3 transmission powers, squelch, RF Gain, start message, 200 channels, VFO, etc., and are recorded on an external EEPROM memory.
    ⚠️ These files are different from radio to radio, it is not certain that those of another are compatible with yours. The calibration is adjusted at the factory for each individual radio.
Read Calibration and Configuration
2.4 Online tool for Mac and Linux as well

There is a utility for flashing firmware online. This is useful for those with a Mac, Linux or versions prior to Windows 10.

Follow this link, everything else is intuitive. https://egzumer.github.io/uvtools/

⚠️ It does not work with Safari or Brave, it requires a Chromium-based browser so use Chrome, Edge or Opera. For Linux use Chrome.

2.5 Upload the IJV Firmware
  1. Make sure you have a sufficiently charged battery.
  2. Plug the cable into the PC, but DO NOT start the software.
  3. Set the radio to update mode:
    While pressing the PTT button, switch on the radio.
    → The white LED lights up.
  4. Connect the cable to the radio. The first time the plugs do not fit very well, you have to push a little to get them all the way in.
  5. Start the software k5prog-win.
  6. Then choose the right COM port in the software and click on 'Connect'.
  7. Via the software k5prog-win, upload the file firmware_IJV_vxxx.bin previously downloaded.
    → The white LED blinks.
  8. At the end of the flashing, switch off the radio and disconnect the cable.

To connect the radio, you will need a Kenwood-type cable:
🛒 🇮🇹 Link d’acquisto cavo Kenwood.
🛒 🌍 Link for Kenwood cable.
🛒 🇺🇸 Link for Kenwood cable.

🛒 Multiple cable purchase link. This cable fits all types of radios, except waterproof ones.
🛒 🌍 Multiple cable purchase Link..
🛒 🇺🇸 Multiple cable purchase Link.

2.6 Adjusting the radio after update

⚠️ Attenzione dopo l’installazione del nuovo firmware è indispensabile effettuare queste regolazione.
Only if this is a first-time installation or if you are coming from other firmware:

  1. Perform a RESET ALL: Start the radio by pressing the PTT buttons and the S1 side button.
  2. Go to the RESET menu and select ALL then confirm.
    The stored frequencies will all be deleted.
  3. Set menu items as desired.

🔸 To optimise reception, make gain adjustments for each band, see section 7.3 RF Gain.

3. IJV firmware features

What it has more of, what it has less of.

  • Overlay windows similar to a context menu.
  • Single VFO with direct insertion frequencies above GHz.
  • AGC FAST / SLOW / Only for AM and SSB.
  • AGC MAN also in FM with 35-level attenuator adjustment.
  • Transmission in emulation DSB (Double SSB). (Always active, now only disconnected if you activate the Upconverter function).
  • Preselection for an Upconverter with transmission lock.
  • Increased waiting times during scanning.
  • Rit & Xit in all modulations.
  • Stable SSB reception.
  • Reception gain customisable to your needs.
  • SATCOM circuit activation with reception boost > +9dB.
  • FM Broadcast.
  • VOX
  • 1750 Tone
  • Compander
  • Extended reception Frequency range: 15 → 1300MHz. With Rx gap between 620 and 840MHz.
  • Unlockable limited transmission: NO AIR BAND / NO 27 MHZ.
  • Rapid Frequency and Tone Search: FC (Frequency Copy) function.
  • Quick Tone Search.
  • Quick partial or full memory scan.
  • TX modulation indicator
  • Selective Calling with reception audio suppression (Code Squelch)
  • Selective sending DTMF, ZVEI, CCIR.
  • Scramble.
  • CW (Continuous Wave) modulation.
  • Distinct squelch for each single VFO line (A and B)
Services menu (ex hidden) (to activate it, switch on the radio while holding down the PTT and side button 1)

  • QRA.
  • Fine frequency calibration.
  • TX Power adjustment for each of the 3 levels.
  • Adjustment of each of the 9 Squelch Levels: RSSI, NOISE, GLITCH.
  • SPECTRUM (will never be there)
  • Password
  • NOAA
  • Battery voltage and calibration indication.
  • Blinking LED.
  • Charging info on USB.

4. Display

Symbols and abbreviations on the screen.

Symbols that may appear in the top line

Symbols that may appear in the bottom line

Display: single VFO

The meaning of icons
Monitor: A loudspeaker, because in Monitor mode it is always on, a sound is always heard.
Dual Watch: Double reception symbol, like two containers waiting to receive a signal.
Keylock: The hash symbol is already present on the key that locks the keyboard. The gate is also a barrier that prevents access to something.
SatComAn arrow that symbolises elevation, either because the satellites are very high or because the setting increases sensitivity.
Battery SaveA + next to the battery to indicate that the battery will last longer.
Skip Scan: A thunderbolt, quick as lightning, the scan jumps him, the shape of the S reminds one of Skip. (Can only be activated via CHIRP).
ScramblerScrambler's S + a vertical bar that comes to alter the letter as the inserted frequency comes to alter the voice.
Write Protect: Protects channel from being overwritten. (Can only be activated via CHIRP).

5. Function of keys

The keys have different functions when pressed, pressed for a long time or in addition with the key F🗝.

5.1 Short-press keys functions.
Key Function
M → Access to radio menu.
→ Confirm selection.
EXIT → In SCAN : stops the scan and returns to the initial frequency.
→ With Rit/Xit function active, realigns the Rx to the Tx by resetting the Step. Reset the last 2 digits of the VFO by aligning it to the lowest KHz.
→ When writing, deletes the previous character by going backwards.
PTT → In SCAN : stops scanning and leaves the last scanned frequency.
*️⃣Scan → In SCAN : Momentary insertion of a frequency in the Black List.
F#🗝 → Activates secondary functions. The letter F appears in the top left-hand corner and remains active for 8 seconds.
5.2 Long-press keys functions.

The big news in version 3 is the introduction of overlay windows similar to a context menu.

In the window appear the options to be selected via the buttons ∧ Up / ∨ Down and confirm with the key M.

Keyboard UV-K5
Key Function
1️⃣Band → AGC shift selection: SLOW / FAST / MAN.
2️⃣A/B → Select VFO line A or VFO line B.
3️⃣VFO/MR → VFO or Memory mode.
4️⃣FC → RF Gain
5️⃣ → Change bandwidth: Wide, Narrow, Ultra Narrow.
6️⃣H/M/L → Power selection L M H.
7️⃣ → Inserts the channel into a memory list.
8️⃣R → In Duplex, inverts freq Rx and freq Tx.
→ In Simplex, activate the Rit/Xit function. (7.8)
9️⃣ → Select a Step.
0️⃣FM → Switch modulation type FM; AM; DSB; CW; WFM.
*️⃣Scan → Start scan.
In VFO, SG appears at the top left of the status line.
If you have set bandwidth limits, i.e. you want to do a partial scan, then you will see SP.
In memory mode, Sm (Scan memory) appears and the group number Sm0, Sm1, Sm2...
For more details go to chapter 7.1
F#🗝 → Keypad lock, except side keys.
EXIT → Resets the selected VFO band back to initial conditions: BW, modulation, power, step, offset, etc.
The message appears Clear VFO.
5.3 Keys associated with F

The F key must be pressed once and lasts 8 seconds.

UV-K5 F button
Key Function
F+1️⃣Band → Access the last VFO used.
F+2️⃣A/B → Switches from dual channel to single channel, on display.
In Single, the VFO is 4-digit, the frequency above Ghz can be set directly.
VFOs are called VAx or VBx to make it clear which one is active. (7.4)
F+3️⃣VFO/MR → Copies the memory frequency to VFO.
F+4️⃣FC → Fast VFO storage with automatic assignment to first free slot.
F+5️⃣ → Activates or deactivates Compander (FM only).
F+6️⃣H/M/L → Completely disable transmission.
The H/M/L power indicators disappear on the screen.
This function remains set even after restarting the radio.
F+7️⃣VOX → Switch VOX on or off.
F+8️⃣R → Activate UpConverter on the active VFO. Set the UpConv. menu first.
F+9️⃣Call → Recall Fast Call Channel.
F+0️⃣FM → FM radio broadcasting. Frequencies can be stored in normal memories by assigning them a name.
F+*️⃣Scan → Select the Channel List to be applied. = ChList menu
F+∧ Up → Set high frequency for partial scan.
F+∨ Down → Set low frequency for partial scan.
5.4 Side keys

The two side keys are programmable via the services menu 57, 58, 59, 60.

K5 Tasti Laterali

You can attribute a function to short or long pressure.
Side1S: S sta per Short clic.
Side1L: L is for Long press.

Functions Description
FLASH LIGHT Switches on the LED.
TX POWER Power selection L M H.
MONITOR Activate monitor, set Squech to 0.
SCAN Start scan. (7.1)
VOX Activates the VOX function.
FM RADIO Activates FM broadcast radio reception.
VFO CHANGE Select VFO Line A or VFO B = long press 2️⃣A/B.
VFO SWAP In VFO, switch from double to single.
SQL + Increase squelch by one level
SQL − Decreases squelch by one level
CW CALL CQ Sends caller ID in morse code. Operates in CW modulation only. (QRA menu)
PRESET Set the radio to according to the presets in the Preset menu
AGC MAN Set gain adjustment to manual.
CH LIST Set the Channel List to be used. = ChList menu = F+*️⃣Scan.

PTT + Side2  = 1750 Tone

6. Menu

To access the main menu, press the key M.
To enter the selected item with the arrows, then press the key M.
To confirm your choice, press the key
To exit the menu item without confirming, press the key

6.1 Main menu
Menu Default Firmware IJV
1 SQL 0-9 (0 = Monitor)
To correctly adjust squelch levels, switch off the dual watch.
Each Memory, VFO or Band stores its own Squelch level automatically.
2 STEP In kHz 0.02, 0.05, 0.25, 1.00, 2.50, 5.00, 6.25, 8.33, 9.00, 10.00, 12.50, 25, 50, 100, 500, 1000
3 MODE FM, AM, DSB, CW, WFM | WFM = radio Broadcast
4 BW W/N Wide, Narrow, Ultra Narrow.
Adjusts as well as the audio filter as the bandwidth.
Each channel stores the bandwidth automatically, thus without doing a ChSave.

Band Wide  Audio filter
W 25 kHz 25 kHz
W 25 kHz 22 kHz
W 25 kHz 18 kHz
N 12.5 kHz 12.5 kHz
N 12.5 kHz 8 kHz
N 12.5 kHz 6 kHz
U 6,25 kHz 3 kHz
U 6,25 kHz 2 kHz
  Each channel stores the transmission power automatically, thus without doing a ChSave.
6 Shift OFF OFF, +, − | Direction Shift/Offset repeater bridges.
7 Offset 0.000MHz 0 to 999.9999 MHz | Frequency shift/offset for repeater bridges.
8 RxCTCS OFF OFF, 67…..250.3Hz | Sets a CTCSS subtone in reception.
9 TxCTCS OFF OFF, 67 to 250.3Hz | Sets a CTCSS subtone in transmission.
10 Rx DCS OFF OFF, D023N, D025N, 26…….754 | Set a DCS code in reception.
11 Tx DCS OFF OFF, D023N, D025N, 26…….754 | Sets a DCS code in transmission.
Tx TOT OFF, 30sec, 1min to 5min | Limits the maximum duration of the transmission.
  With notice at 10 and 5 seconds before closing.
13 BusyCL OFF OFF, ON | Prevents transmission if the channel is busy.
14 ChSave CH-001 1 to 200
15 ChName CH-001 10 characters max
With arrows ∧ Up / ∨ Down, select the desired character. Digits can be written directly with the keyboard.
Key M to move to the next character. EXIT back and delete. Always confirm the new name with the M.
16 ChCanc Delete stored channel.
  In Single mode you can choose the font size for the channel name and its frequency, L = Large and S = Small.
18 ChList 0 ALL Channel Lists: Lists that group memories for scanning or viewing mode. The names of the lists are editable via CHIRP.
19 PrSave Preset Save. Saves a preset set by you. Caution: This action may overwrite those already present in the preset menu.
20 BLTime ON OFF, 5sec, 10sec, 20sec, 1min, 3min, RX/TX, ON
  RX/TX: Assumes the exact time since the last transmission or reception. ON: always on.
  Determines the event that causes the display to light up.
22 BLType NORMAL NORMAL, INVERTED | INVERTED is better for night vision.
23 BEEP OFF ON, OFF | Beep sound when buttons are pressed.
  Set scan resumption.
SLOW e FAST CARRIER: resumes scanning after the signal has disappeared.
SEARCH: stops when it finds a busy channel and stays there.
LOG: This will be used in the future to link the radio to an app.
TIME: Stops on busy channel for 5 sec. then starts again.
25 KeyLok OFF OFF, AUTO | AUTO locks the keyboard after 10 sec. of inactivity. The keyboard can be activated temporarily with a long press on the F#🗝 key.
26 Tx STE ON ON, OFF | It eliminates the tail tone, so the small rustling noise that occurs when releasing the PTT when using a bridge.
  When the PTT is released, it turns off the subtone and then immediately disconnects the carrier. (STE: Squelch Tail Eliminator)
In practice, radios that engage the bridge, immediately turn off the subtone when the PTT is released, which then drops the bridge, but the carrier still remains active for a second, so that there is still a carrier on the bridge receiver that keeps the repeater's audio muted and does not make the hissing sound.
27 Rx STE OFF OFF, 1*100ms to 10*100ms | Eliminates head hum in Rx. When the bridge carrier is released, it closes the audio for the set time.
  In practice, with the Rx STE active, when the carrier is released, the audio will be muted for a few ms (set by the menu), thus avoiding the hiss caused by a too-slow squelch.
28 Scramb OFF OFF, 2600 to 3500 Hz | Encrypts voice with an obfuscating frequency. (FM only).
29 Mic dB +15dB +1.1dB to +15.1dB | Increases or decreases microphone sensitivity.
30 MicBar OFF ON, OFF
  It inserts a modulation level bar in the centre of the screen.
Useful for DSB transmission, in fact for optimal modulation it is best not to exceed half the scale, so the Mic dB level should not exceed 4 dB.
31 Compnd OFF OFF, TX, RX, RX/TX
  Compander: compressor/expander filter, enhances vocals (FM only).
32 VOX OFF OFF, 1 to 10 | Smaller = more sensitive.
33 1 Call CH-001 F+9️⃣Call - One Key Call Channel. choice of single-button emergency call channel.
34 Own ID 102 | Set a personal ID.
35 UPCode 123 | Initial selective code. Assignable to each memory. Max. 10 characters.
36 DWCode 456 | Final selective code. Assignable to each memory. Max. 10 characters.
37 D Lmon ON OFF, ON| DTMF Local monitor: DTMF side tone switch and Selective. (PTT + S2 = Tone 1750).
Allows you to monitor, listen locally to the tones sent by the radio.
39 D Hold 10s 5s to 60s
40 D PRE 30*10ms
42 D List NULL
43 D Live OFF  ON, OFF
CCIR-1F = 50 ms
CCIR-1 = 100 ms
Acoustic or digital signals sent at the start and/or end of the call. (7.5)
"MDC 1200" is the only tone that cannot be heard locally with "D Lmon" active, because it is an FSK modulation.
45 FrCopy Frequency Copy (Frequency Meter)
Analyses and identifies the frequency and CTCSS tone of a transceiver when one does not know how to operate the menus or has a faulty display.
It is necessary that the 2 radios are VERY close to each other, because the required signal must exceed -40dBm. The 2 radios must be almost in contact.

46 CtScan Starts CTC/DCS tone scanning on a given frequency.
47 Info IJV MOD V.x.x, Batt Volt.
 48 Beacon OFF, 5sec, 10sec, 30sec, 1min, 3min, 6min, 10min, 20min.
49 BatSav OFF OFF, 50%, 67%, 75%, 80%
  It allows the radio to remain active for only a few moments, thus reducing consumption.
The cycle consists of 4 phases of 100mS each, saving on how many times in this cycle the Rx is active or in suspension.
The greater the savings, the lower the performance in reception, especially in scanning.
50 dBm/Sm S/Meter S/Meter, RSSI dB
51 SCList List created after a scan of found frequencies. Deletes after reboot.
  Frequencies preceded by * are those on the blacklist.
Selecting the frequency and pressing Menu tunes the VFO there.
52 SatCom OFF ON, OFF
Activates the filter change circuit for frequencies after 240 MHz and sets the radio chip to a +9dB increase in reception, this once activated remains in memory the next time it is switched on. Similar to a preamplifier, to be used in exceptional cases of low signal because it can cause distortion in listening, switch it off when not needed.
The message RESET SATCOM appears.
53 UpConv OFF OFF, 50, 125, CUSTOM
Set the radio to operate with a transverter (Upconverter) for the HF.
It offset itself to 50, 125Mhz or customisable from the display readout and disables Tx on that frequency.
Then choose how high to scale then do F+8, 'Up' will appear under frequencies.
The CUSTOM value is to be entered with CHIRP.
54 Preset CB, 70, AIR, VHF 144, VHF 145, UHF 430, LPD, PMR, SERVICES, SAT, SEA, USER
It sets up reception and scanner filters with search limits per selected band.
Each preset is fully customisable with the PrSave and CHIRP menu.
Pressing the M button stores the bands and returns directly to the main VFO screen.
Auto Gain Control:
In MAN, the sensitivity of the RF Gain can be changed manually by long-pressing the key 4️⃣FC
. It works on FM only.
FAST or SLOW: determines how quickly or slowly the AGC recovers gain after attenuating a strong signal. Works on AM and SSB only (7.3)
In Rx, it appears to the left of the centre line:
M+0, FST or SLW.
In Dual RX, choose the TX channel. Same as RX, A or B.
If set to VFO A or B, 'Xb' appears on the top line of the screen.
(Cross-Band Receiving/Manual Transmission)
57 DualRX OFF ON, OFF (Dual Watch) allows two channels to be monitored simultaneously.
6.2 Services Menu

To activate it, switch on the radio while holding down the PTT and side button 1

Menu Default Firmware IJV
  VFO: resets menu settings.
DATA: resets VFO and all customisations.
ALL: deletes memories as well.

59 LckVFO OFF Lock the VFO function, only memorised channels will be usable.
  Info showed when starting the radio. Firmware name; custom message; nothing.
The customised message displays the QRA line and two other lines of text that can be entered via CHIRP.
61 QRA Write your CW call sign. Max 8 digits.
  Assigns a function to the side buttons below the PTT. S= Short click, L= Long press.
66 F Lock OFF OFF, FCC, CE, GB, 430, 438
  It blocks certain functions depending on the legislation of the country you are in.
Select the type of enabling you prefer:

  FCC: 144 MHz → 148 MHz,     420 MHz → 450 MHz
CE:    144 MHz → 146 MHz,     430 MHz → 440 MHz
GB:   144 MHz → 148 MHz,     430 MHz → 440 MHz
430: 136 MHz → 174 MHz,     400 MHz → 430 MHz
438: 136 MHz → 174 MHz,     400 MHz → 438 MHz

67 Txp EN ON ON, OFF
  OFF totally blocks the TX, the radio becomes just a receiver.
68 FrqCal Fine calibration of the radio oscillator frequency. Requires the use of a signal generator.
69 TxpCal Adjusts Tx power for the 3 levels L, M, H.
  First choose the desired power on any freq, then menu PwrCal and adjust the power. ( (7.6)
70 SqlGli Calibration of Glitch Squelch Parameter. ⚠️ Experts only, modification may create squelch malfunctions.
71 SqlNoi Calibration of Noise Squelch Parameter.⚠️ Experts only, modification may create squelch malfunctions.
72 SqlRss Calibration of RSSI Squelch Parameter.⚠️ Experts only, modification may create squelch malfunctions.

7. Common Operations

7.1 Scanning

In memory mode you can enter a channel into 15 memory groups for separate scanning by long-pressing the key 7️⃣.
Before scanning, choose all or one of these 15 lists using the F+ key*️⃣Scan.

Start scanning:
Long press key *️⃣Scan to start a general, partial or inter-memory scan.

If you want to start a scan in VFO mode, it is recommended to first select the desired band type in the menu Preset.

During the scanning process:
SP = partial scan, SG = general scan, Sm0 to scan all lists, Sm1, Sm2... Sm15 memory scan per list.

The scanning direction can be changed or continued using the buttons ∧ Up/∨ Down.
EXIT → Stops the scan and returns to the initial frequency.
PTT → Stops scanning and leaves the last scanned frequency.

When the scan stops on a frequency, by pressing EXIT it stops scanning and stays on that frequency.

There is the possibility to change during scanning: BW Filters, Step and Fast Frequency Saving.

Black List:
It is possible to exclude up to 40 unwanted frequencies in a black list.
When the scan stops at an unwanted frequency, make a short press on the key *️⃣Scan, it will be entered into the Black List. The following will appear on the screen: "BlackList In #(n)" where (n) is the number of frequencies entered.
By switching off the radio, the Black List will be deleted.

Scan List:

The Scan List lists all frequencies found during the scan, it is visible in the menu under SCList.
By switching off the radio, the scan list will be deleted.

🔸 Locking and unlocking the keyboard by long keypresses F#🗝 is possible during scanning.
🔸 Battery saving is switched off during scanning.
🔸 Boradcast WFM memories are excluded a priori.

7.2 Partial scan
  1. Enter the lowest frequency in VFO, e.g. 144.0000 (7 chars.).
  2. Press the key F+∨ Downyou will see the message "Set Range Low OK“.
  3. Enter the highest frequency, e.g. 145,6000 (7 chars.).
  4. Press key F+∧ Upyou will see the message "Set Range Up OK“.
  5. Start the scan by long-pressing the key *️⃣Scan.
    The abbreviation Sp. will appear in the top line.
7.3 RF Gain

The function RF Gain is the same to that of large radios or CBs. You can increase or decrease the sensitivity as required.

Adjust RF Gain

  1. Switch to the desired frequency and long-press the 4️⃣FC. A window with values appears on the right.
  2. Use arrows ∧ Up/∨ Down to increase or decrease the gain.
  3. To store the value permanently, press the key Mthis will remain even after restarting the radio.
    Press the key EXIT for temporary storage until the radio is switched off.
  4. If the desired frequency is in another modulation than FM, change it with a long press on the 0️⃣FM.
    (In FM, the AGC is always in MAN).

🔸 Each band has its own Gain, the level stored applies to the band active at that time.

🔸 The zero value is aligned with the input signal, if connected to a generator the output value corresponds to the RSSI read by the radio. In fact there is +26 in VHF and +18 in UHF.

🔸 To reset the RF Gain to default on all bands perform a VFO Reset (Start the radio by pressing PTT + EXIT).

🔸 The RF Gain function also works without reception, but you have no reference to adjust it.

7.4 Entering frequencies above 1000 MHz (GHz)

Single VFO method

  1. Switch to Single VFO mode: F+2️⃣A/B
  2. Enter the desired frequency (8 digits).

VFOs are called VAx or VBx to make it clear which one is active.

Inserire frequenze sopra i GHz in Singolo VFO
7.5 DTMF
  • Principle for making the call work with DTMF tones:
Own ID = 1 Own ID = 2
UPCode = 2 UPCode = 1

MENU settings

34 Own ID Enter your code e.g. 1
35 UPCode Enter the recipient's code e.g. 2
41 D DCD ON DTMF decoding enabled
44 PTT ID DTMF CALL ID ID selettiva a DTMF

Do the same thing on the other radio by reversing the codes as shown above.

To send in Tone 1750, press PTT + S2 (side button 2).

7.6 The Selectives: ZVEI, CCIR… SelCall
  • To activate selectives:

MENU settings

34 Own ID Here you can enter your personal ID for use with the Rega selective | (max. 8 hexadecimal digits 0123456789ABCDEF)
35 UPCode Enter the code to be transmitted e.g.: 12345 | Only in VFO (max. 8 hexadecimal digits) occurs before transmission ZVEI BEG CCIR BEG DTMF BEG
36 DWCode Enter the code to be transmitted e.g.: 12345  | Only in VFO (max. 8 hexadecimal digits) occurs at the end of the transmission ZVEI END CCIR END DTMF END
44 PTT ID ZVEI 1 & 2
CCIR 1 & 1F
You can specify the selective type between ZVEI 1 and 2, CCIR 1 (100ms) and 1F (50ms) and decide whether to transmit it at the beginning or end of Tx or both. | Valid in both VFO and Memories, but in the latter the code entered in UPCODE and DOWNCODE will not be used, but the selective one specified in each memory. Each memory has 10 characters available for UP, DOWN or UP&DOWN. They are entered only via CHIRP in the "Code PTTID" column.

Selective codes are assignable to each memory. Max. 10 characters.

7.7 Power Output Adjustment

Exact adjustment of transmission power for the 3 levels L, M, H:

  1. Access the Services Menu by switching on the radio while holding down the PTT and side button 1.
  2. Choose any frequency in the UHF band.
  3. Select one of the 3 powers L, M, H.
  4. Go to the services menu TxpCal and set the power.
  5. Repeat the operation at will for all 3 levels.
  6. Repeat the operation on the VHF band as well.

Each channel stores its transmission power automatically.

By pressing the PTT, this value in Watts will appear below the Tx, symbol.
The value shown does not actually represent the power output, especially outside the bands for which the radio was designed, 2m and 70cm.

7.8 CW Modulation (Continuous Wave)

CW (Continuous Wave), allows telegraphic communication by means of an external key telegraph or PTT.
To hear the note monitor, enable ON in menu D Lmon.

  • Enter your call sign in the services menu QRA.
  • Assign the CW / CALL CQ function to a side button.
  • Activate Beacon and Call CW Repeat interval time. Menu Beacon.
    When they are active, Bc appears for Beacon and Cc for Call CW.
  • The Beacon (Radiofaro) sent is made up of:
    For a total of 8 + 8 + 15 + 15 characters. If you write it with Chirp: 8 + 8 + 12 + 12.
    String 1 takes it from the first line of the welcome message, String 2 from the second line.
    The welcome message can be changed with the software CHIRP.
  • Pressing the key you have assigned to CW / CALL CQ starts the automatic CALL CW call. The abbreviation Cc appears when it is active.
    Sending the CW / CALL CQ consists of: CQ CQ DE QRA QRA PSE.
  • Pressing PTT disables both Beacon (returns to OFF) and CALL CW.

The Rit/Xit function can be used on CW.

7.9 Rit/Xit

The Rit/Xit function works in VFO on any FM, AM, DSB and CW modulation.

To make full use of the Rit/Xit function, it is necessary to switch to Single Channel mode.
Switch to Single Channel View F+2️⃣A/B

  1. Long press 8️⃣R to activate Rit, Xit or exit.
    The words Rit or Xit down and the F for Function appear at the top of the screen.
    The frequency is also split: above in small the Tx frequency and below in large the Rx frequency.
  2. Use the arrows to change the kHz frequency.
    In Rit the Rx frequency will change, in Xit the Tx frequency will change.
  3. The key EXIT realigns the Rx to the Tx by resetting the Step. Reset the last 2 digits of the VFO by aligning it to the lowest kHz.

Check that F is active, because after 8 seconds it comes off. If it does, press the F button again.
Without the F active, the arrows will change Rx and Tx frequencies simultaneously.

7.10 Radio broadcast FM

There are two ways to start FM radio mode:

  1. VFO mode
  • Switch to VFO mode.
  • Press F+0️⃣FM to switch to FM Broad mode (this can also be done after entering the frequency).
  • Use the keyboard to manually enter a frequency (7 characters).
  • Press the keys ∧ Up / ∨ Down to change the frequency.
  • To store the frequency, press the key M and go to the ChSave menu, press M and select the desired memory number with the ∧ Up / ∨ Down. Again press the key M to record the channel.
  • The following message appears Memory saved.
  • Press the key ∨ Down to select the ChName entry, press the two times M to enter alphanumeric writing mode, with the arrows ∧ Up / ∨ Down select the desired character. Press the M to move on to the next character. Digits can be written directly with the keyboard. Use the EXIT key to go back and delete if necessary. Once you have finished the 10 character string, confirm the storage with the M.
  1. MR memory mode
  • Go into memory mode with long presses on key 3️⃣VFO/MR.
  • Select the memory you have stored normally with the buttons ∧ Up / ∨ Down.
  • Or use the keyboard to enter the memory number. (3 characters).

To exit FM Radio mode, press either: F+0️⃣FM.

8. Connect

Interfacing the radio with a computer.

  1. Download and install the software CHIRP-next. Minimum required:
    • Windows 10 and later (64-bit)
    • macOS Big Sur and later (universal binary with Intel and Apple Silicon support)
    • Linux (all modern distros with python3, details here)
  2. Install the cable driver .
  3. Download the zip file containing the module: LINK ZIP IJV.
  4. Make sure your battery is sufficiently charged and connect the radio with the cable.
  5. Open CHIRP and make sure you are in developer mode, then → 'Help' menu → tick 'Developer Mode'.
CHIRP Modalita sviluppatore
  1. To the alert message, answer Yes and restart CHIRP as requested.
  2. Click FILE in the menu, select 'Upload module'.
  3. At the alert message, answer Yes. Upload the attached module uvk5_IJV_v3_xx.py.
CHIRP Carica modulo
  1. Read the radio using the normal procedure, selecting in the radio list the model: K5 IJV_V3
  1. Set the display of all fields, then → View menu and tick: Show extra fields.
  2. Enter the frequencies.
    • 🔸If your radio already contains personal information, read the radio's Chirp configuration and save it to your computer. Copy the desired frequencies into that file.
    • 🔸If your radio is new, you can start directly from the downloaded img file.
    • Open the Chirp configuration file (.img).
    • Modify the settings as you like.
    • Save the file with the name of your radio.
    • Upload it to your radio.
CHIRP Mostra Campi aggiuntivi

⚠️ The module uvk5_IJV_V3_xx.py must be loaded every time you want to change the radio or the .img configuration file.

💻📝 Download a generic Chirp configuration file (.img) suitable for the IJV module for CHIRP here. It contains the following frequencies:
16 PMR; 69 LPD; ISS; 40 CB; 18 SEA; 3 SATCOM.

Load the module automatically when CHIRP starts.
  1. Go to the Chirp installation folder: C:\Program Files (x86)\CHIRP
  2. Create a CHIRP software Shortcut:
    Right-click on “chirpwx.exe” → Create Shortcut.
  3. Rename it to CHIRP IJV V3.
  4. Right-click on the newly created shortcut file → Properties
    A window opens, then go to the 'Shortcut' tab.
  5. In the 'Destination' box, add at the end of the string
     --module "D:\Folder Path\uvk5_IJV_v3.py"

    • Make sure you only leave a single separator space.
    • Replace Folder Path with the address of your folder where the module is located.
    • The name of the module may change depending on the version.
    • Example:
      "C:\Program Files (x86)\CHIRP\chirpwx.exe" --module "D:\UVK5\Firmware Mod IJV\uvk5_IJV_v3_34.py"
  6. Click on OK or Apply.

Now, when you start CHIRP from this customised shortcut, the module will automatically load. You will get confirmation of this in the title bar where the words "Module loaded" will appear.

🔸 If the path contains spaces, be sure to enclose the entire path in inverted commas " ".

🔸 If the module changes name in an updated version, be sure to replace the file and rename the link string as well.

9.Useful links

Thanks to the entire IJV Test team and especially to
  • Torre John
  • IK5WWP Lorenzo
  • IW6MTO junior Mattia
  • IZ6GSK Lucio
  • IZ8YMH Aristide
  • IK0NWG Salvatore
  • IW0CPK Francesco
  • Stefano “Doc Brown”
  • IU1QQY Michele
  • IK8JHL Francesco
  • RL3QFR Anatoliy
  • IU8NBQ Teo

who have patiently supported me and put up with me throughout this time, enabling me to improve my work.
Fabrizio IU0IJV
Follow me on the channel YouTube IJV.
If you would like to buy me a coffee, I would gladly accept it. Thank you. Donation link.

Thanks again to Sirio for contributing to the important production of the manual hosted on his website.
If you wish, you can offer a beer to the webmaster of the manual: Donation link

Download this manual in PDF
  • There are two PDF versions, the vertical one for mobile phones and the horizontal one for printing.
  • Make sure you have the latest version by checking the update date on the right next to the introduction.

PDF updated on 05-4-2024

🔹 Il sito di Rete Radio Prepper. Divulgazione scientifica amatoriale e gestione eventi:
Meteonuvola è un progetto amatoriale fatto di appassionati che hanno l’intento di creare un sistema di informazione culturale e di sostegno emergenziale. Per rendere ancora più efficace il progetto, abbiamo creato il servizio Rete Radio Prepper.

La Rete Radio Prepper usa il canale 2 PMR/CB (am o fm), 145.300 FM e 7190 LSB HF.
Per informazioni più dettagliate, seguite questo link.

Radio Rete Prepper-Gestione Emergenze

🔹 The ABCs of RADIO is a comprehensive introduction for those starting out in the world of radio.

L’ABC della radio

🟢 Tri-band HF VHF UHF (76→600MHz), torch, FM radio, screen and keypad, charging via USB. Firmware replacement possible. Scrambler.

🔴 Not water-resistant, only splash-proof.

🛒 Link d’acquisto QUANSHENG UV-K5(8).
🛒 Link d’acquisto cavo di programmazione.
🌐 Official website.


🔹 Per prendere la patente, si può iniziare un corso online qui: http://www.stmb.it/corso.htm
Prendere la patente significa poter andare su tutte le altre frequenze (non solo PMR, LPD o CB), utilizzare i ponti radio, sostituire l’antenna di base con delle antenne più potenti e utilizzare le ricetrasmittenti con potenze superiori.

🔹 Esercitazione Esami per l’ottenimento Patente – QUIZ link

10. Accessories

List of the most popular and considered best quality accessories.

"As an Amazon Affiliate I receive income from eligible purchases."

Broadcast FM filter (Notch)

Nooelec Flamingo FM. Connect the Output part to the radio and the Input part to the antenna. Also works in TX.

Version 1: Attenuation of about 40dB, good for out-of-town environments.
🇮🇹 Link Amazon.
🌍 Link Amazon.

Version 2: Attenuation of approximately 65dB, good for urban environments.
🇮🇹 Link Amazon.
🌍 Link Amazon.

Filtro bandstop notch – Sognibene

FM 88-108MHz bandstop notch filter for Quansheng UV-K5 double-shielded, 40-50dB attenuation.
Also works in TX up to 10W. Ask for the 25W continuous duty version.

It perfectly matches the connector and body of the K5.

Possibility of hand delivery in the city, free of charge (Palermo).
Telegram contact: https://t.me/Sognibene

Link ebay.

18650 battery pack for 3D printing

Link 1

Link 2

Volume knob protection for 3D printing


12/24V cigar-lighter adapter

🌍 Amazon link.

Programming cable

To connect the radio, you will need a Kenwood-type cable:
🛒 🇮🇹 Link d’acquisto cavo Kenwood.
🛒 🌍 Link for Kenwood cable.
🛒 🇺🇸 Link for Kenwood cable.

🛒 Multiple cable purchase link. This cable fits all types of radios, except waterproof ones.
🛒 🌍 Multiple cable purchase Link..
🛒 🇺🇸 Multiple cable purchase Link.

Some cables require you to cut a piece of plastic from the plug to fit properly into the radio socket.

Transverter / Upconverter

Nooelec Ham It Up Plus v2
Rx frequencies from 300 Hz to 65 MHz. Local translation of 125 MHz.

🇮🇹 Link Amazon.
🌍 Link Amazon.

Microfono BaoFeng BF-780

Impermeabile, miglior audio. Spinotto tipo Kenwood:
🛒 Purchase link

Microfono Retevis RS111

Kenwood-type plug:
🛒 Purchase link

Be prepared