List of Ham Convertible Kenwood & Viking Radios

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A Comprehensive List of Ham Convertible Kenwood & Viking Radios

DISCLAIMER: Everything below these three paragraphs was written with a deep-research LLM model (Fancy way of saying an AI that double-checks things and does research). I am very anti-AI for blogs and written works in general, but this is not meant to be an entertaining read or particularly informative lesson, but rather a list of models and notes. I personally went over this report, fixed some issues, added some personal experience, and added some photos for easy field-identification. Converting Kenwood and Viking radios to the ham band is a great way to save some money, keep older gear from becoming e-waste, and get some reliable, high-performance gear. However, the details can be difficult to sort through, hence the need for this!

So, I tasked the deep research model with collecting forum posts, guides, and other information on Kenwood (and Viking) commercial two-way radios that are and are not suitable for ham conversion. I looked over it to make sure it wasn’t hallucinating anything crazy, and tried to make sure it cited as much as possible, but as you should with all AI, be sure to trust but verify by checking its sources. This should be your first practice for all AI from articles like this, to the google AI overview.

One thing I will note is that portables often have issues with their batteries after a certain age. This is fine if you’re building high-efficiency repeaters using a 7.3v power supply, but for prolonged portable use, this may be an issue if replacement batteries cannot be found online!

Section 1: Foundational Concepts for Commercial Radio Conversion

1.1 Introduction: The Allure of Commercial Radios in Amateur Service

The practice of converting commercial Land Mobile Radios (LMR) for use in the Amateur Radio Service is a long-standing tradition within the hobby. The appeal is rooted in several key advantages that surplus commercial equipment offers over purpose-built amateur gear. Commercial radios, particularly those from manufacturers like Kenwood, are engineered for public safety and industrial environments, resulting in superior build quality that often meets stringent Military Standards (MIL-STD) for durability against shock, vibration, and environmental exposure.1

From an RF performance perspective, these radios typically feature excellent receiver selectivity and sensitivity, designed to operate in congested RF environments without succumbing to interference—a quality highly valued in amateur operations.3 Furthermore, many mobile models offer significantly higher power output than their amateur counterparts, with 100-110 watt VHF and UHF models being common.5 The availability of this high-performance equipment on the surplus market, often at a fraction of its original cost, makes it a compelling option for amateurs seeking robust and reliable hardware for base, mobile, or repeater applications.7

1.2 Critical Prerequisite: Identifying Radio Band Splits

Before any attempt at conversion, the single most important factor to determine is the radio’s factory-programmed frequency band split. While software can often persuade a radio to operate slightly outside its intended range, the internal hardware components—specifically the Voltage-Controlled Oscillator (VCO) and the receiver’s front-end helical filters—are tuned for a specific segment of the spectrum. Attempting to operate a radio too far from its designed split will result in severely degraded performance, such as a “deaf” receiver or significantly reduced power output, or it may fail to function entirely as the VCO cannot achieve a phase lock.9

This hardware limitation is a hard barrier that software modifications alone cannot overcome. For instance, a Kenwood TK-8180 is available in two primary splits: a K1 type covering 450-520 MHz and a K2 type covering 400-470 MHz.12 For operation on the 70cm amateur band (420-450 MHz), the K2 split is the ideal choice as it covers the entire band natively. While the K1 split can be pushed down into the upper portion of the 70cm band, it will likely require physical VCO adjustments to maintain lock below 440 MHz and will exhibit reduced sensitivity.10 Similarly, the low-band TK-690H mobile is available in three splits; only the Type 1 (29.7-37.0 MHz) is suitable for 10-meter conversion, while the Type 3 (40.0-50.0 MHz) is necessary for a 6-meter conversion.6 Verifying the band split via the model number suffix or the FCC ID on the chassis is the most critical pre-purchase step to ensure a successful conversion project.

1.3 The Programmer’s Toolkit: Software and Cables

Unlike some commercial radio brands that use a single software suite for multiple radio lines, the Kenwood ecosystem generally requires a specific Kenwood Programming Software (KPG) version for each radio series.5 For example, the TK-x80/x90 series radios utilize KPG-49D or KPG-44D, while the newer TK-x180 series requires KPG-89D.5 This software is proprietary and must be legally purchased from a Kenwood dealer; requests for illegal copies are prohibited on reputable forums.9

The physical connection is made via a programming cable. Kenwood has used several connector types over the years, including the 6-pin modular KPG-4 (RJ-11/12 style), the 8-pin modular KPG-46 (RJ-45 style), the multi-pin KPG-36 for portables, and the round 12-pin KPG-43 for certain mobiles.15 Early software versions were DOS-based and required a physical serial port, while modern KPG versions are Windows-based and can utilize USB-to-serial adapter cables.15

When selecting an aftermarket USB programming cable, the internal chipset is a critical factor for reliability. Cables using an FTDI (Future Technology Devices International) chipset are consistently reported to be more reliable and are often “plug-and-play” with stock Windows drivers.12 In contrast, cables using Prolific chipsets can be problematic, sometimes containing counterfeit chips that are not supported by the latest Prolific drivers, leading to significant frustration and troubleshooting.16 Investing in a quality FTDI-based cable is a recommended best practice to avoid common connectivity issues.

1.4 Overview of Modification Techniques

Converting Kenwood commercial radios for amateur use involves one or more of the following techniques, ranging from simple software entries to component-level hardware changes.

  • Software-Only Modifications: The most common and simplest method involves entering the desired amateur frequency directly into the KPG software. The software will typically generate an “out of range” error message. In many cases, simply acknowledging and clicking “OK” on this error will allow the frequency to be written to the radio.3 This method is effective for many VHF and UHF models where the desired ham band is only a few megahertz outside the commercial band split.
  • Community Utility Modifications (Hex-Editing): For some models, particularly those with firmware locks preventing simple out-of-band programming, the amateur community has developed specialized utilities. These programs do not replace the KPG software but rather modify its output. The process involves programming the radio with a “proxy” frequency within its legal range, saving the configuration (.dat) file, and then running the utility (e.g., KW900EZP.exe for the TK-981 or KWLBHEZP.EXE for the TK-690).9 The utility performs a hex-edit on the .dat file, changing the proxy frequency to the desired amateur frequency. The modified file is then written back to the radio using the KPG software.
  • Hardware Modifications: When a radio’s VCO cannot maintain a lock at the target amateur frequency, physical adjustments are necessary.
    • VCO Adjustment: This typically involves carefully tuning a small trimmer capacitor or spreading a coil within the shielded VCO can while monitoring the VCO steering line voltage at a specific test point. The goal is to bring the voltage back within its operational range (e.g., 1.5 to 8.0 VDC) at the new frequency limits.6 This requires a non-conductive tuning tool and a digital multimeter.
    • Hardware Additions/Changes: More advanced conversions may require physical changes to the RF circuitry. A well-known example is the conversion of the TK-690H for the 6-meter band, which requires inserting small brass slugs into the VCO coils to raise their resonant frequency into the 50-54 MHz range.6 Another example is the modification of the TK-981 for 900 MHz repeater receiver use, which involves physically replacing the stock 936 MHz surface-mount front-end filters with 915 MHz filters to improve sensitivity.18

Section 2: Model-by-Model Conversion Compendium

This section provides a detailed, model-specific breakdown of the requirements and procedures for amateur band conversion.

2.1 Master Compatibility and Requirements Table

The following table serves as a quick-reference guide to the models covered in this report. It provides an at-a-glance summary of each radio’s potential for amateur use, the necessary software and cables, and the general type of modification required.

ModelHam BandCompatibilityRequired SoftwareRequired CableModification Type
TK-71502mYesKPG-79DKPG-46Software Only
TK-815070cmYesKPG-79DKPG-46Software Only
TK-7180/71822mYesKPG-89DKPG-46Software Only
TK-8180/8182(H)70cmYes (Split Dependent)KPG-89DKPG-46Software, possible VCO Adjust
TK-21802mYesKPG-89DKPG-36Software Only
TK-318070cmYes (Split Dependent)KPG-89DKPG-36Software Only
TKR-750/7512mYesKPG-91DKPG-46Software, Filter Alignment
TKR-850/85170cmYesKPG-91DKPG-46Software, Filter Alignment
TK-52102mYesKPG-95DG/DGNKPG-36Software Only
TK-5710(H)2mYesKPG-95DGKPG-43Software Only
TK-531070cmYes (Split Dependent)KPG-95DG/DGNKPG-36Software Only
TK-5810(H)70cmYes (Split Dependent)KPG-95DGKPG-43Software Only
TK-5410900MHzNoN/AN/AN/A
TK-5910900MHzNoN/AN/AN/A
TK-52202mYesKPG-112DKPG-36Software Only
TK-532070cmYes (Split Dependent)KPG-112DKPG-36Software Only
TK-57202mYesKPG-112DKPG-46Software Only
TK-582070cmYes (Split Dependent)KPG-112DKPG-46Software Only
TK-7302V/H/HV2mYesKPG-124DKPG-46Software Only
TK-8302U/H/HU70cmYesKPG-124DKPG-46Software Only
TK-23602mYesKPG-128DKPG-22Software Only
TK-336070cmYes (Split Dependent)KPG-128DKPG-22Software Only
TK-23122mYesKPG-134DKPG-22Software Only
TK-331270cmYes (Split Dependent)KPG-134DKPG-22Software Only
TK-2902mYesKPG-38DKPG-36Software Only
TK-39070cmYes (Split Dependent)KPG-38DKPG-36Software Only
TK-690H6m/10mYes (Split Dependent)KPG-44DKPG-43Hex-Edit, Hardware (6m)
TK-790(H)2mYesKPG-44DKPG-43Software Only
TK-890(H)70cmYesKPG-44DKPG-43Software, possible VCO Adjust
TK-2802mYes (Split Dependent)KPG-49DKPG-36Software Only
TK-38070cmYes (Split Dependent)KPG-49DKPG-36Software Only
TK-480900MHzNo (800MHz)N/AN/AN/A
TK-481900MHzYesKPG-35D/49DKPG-36Hex-Edit, possible Hardware
TK-7802mYes (Split Dependent)KPG-49DKPG-46Software Only
TK-88070cmYesKPG-49DKPG-46Software Only
TK-980900MHzNo (800MHz)N/AN/AN/A
TK-981900MHzYesKPG-49DKPG-46Hex-Edit, Hardware
TK-7102/71082mYes (Split Dependent)KPG-70DKPG-46Software Only
TK-8102/810870cmYes (Split Dependent)KPG-70DKPG-46Software Only
NX-5000 Series2m/70cmUndocumentedKPG-D1VariousNot Recommended
NX-3000 Series2m/70cmUndocumentedKPG-D6VariousNot Recommended
NX-1000 Series2m/70cmUndocumentedKPG-D6KPG-22Not Recommended
Viking Series2m/70cmUndocumentedArmadaVariousNot Recommended

2.2 Detailed Model Breakdowns

2.2.1 TK-x150 & TK-x180 Series (Advanced Analog Mobiles)

Kenwood TK-7150
  • TK-7150 (VHF)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-79D 20; KPG-46 Cable (RJ-45).20
    • Modifications/Notes: The standard 136-174 MHz split covers the entire 2m amateur band without issue.14 Programming is straightforward by entering 2m frequencies directly. No hardware modifications are required.
  • TK-8150 (UHF)
    • Ham Band Support: 70cm: Yes.
    • Software/Cable: KPG-79D (inferred from TK-7150); KPG-46 Cable (RJ-45).
    • Modifications/Notes: The commercial split of 450-500 MHz requires programming out-of-band to cover the 440-450 MHz portion of the 70cm band.22 Forum reports confirm successful operation on UHF ham frequencies.13 Performance at the lower end of the band may be slightly reduced without a formal alignment.
Kenwood TK-7180
  • TK-7180 / TK-7182 (VHF)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-89D 7; KPG-46 Cable (RJ-45).7
    • Modifications/Notes: The 136-174 MHz split provides full coverage of the 2m amateur band.7 No hardware modifications are necessary. These models are an excellent choice for a modern, high-specification analog 2m mobile. Front Panel Programming (FPP) is not a standard feature and requires the purchase and installation of the “Tactical Feature Set” (TFS) firmware upgrade, which is difficult to obtain.7
  • TK-8180 / TK-8182 / TK-8182H (UHF)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-89D 12; KPG-46 Cable (RJ-45).7
    • Modifications/Notes: Compatibility is critically dependent on the band split. The K2 type (400-470 MHz) is the ideal model, as it covers the entire 70cm band without modification.12 The more common K1 type (450-520 MHz) requires out-of-band programming. The VCO in K1 models may lose lock below 445 MHz, necessitating a physical adjustment of the VCO trimmer capacitor on the bottom of the main board to extend the lock range down to approximately 440 MHz.10

2.2.2 TKR-x50 & TKR-x51 Series (Repeaters)

Kenwood TKR-750
Kenwood TKR-750 outside the rack mount
  • TKR-750 / TKR-751 (VHF)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-91D 12; KPG-46 Cable.28
    • Modifications/Notes: These repeaters are available in multiple splits. The 136-150 MHz version is optimal for 2m use, but the more common 146-174 MHz split can be used.8 For best performance on the 2m band with the higher split, a physical realignment of the helical front-end filters is recommended to center the passband for maximum sensitivity.8 These are highly regarded as robust and reliable repeaters for amateur service.
  • TKR-850 / TKR-851 (UHF)
    • Ham Band Support: 70cm: Yes.
    • Software/Cable: KPG-91D 27; KPG-46 Cable.28
    • Modifications/Notes: The common 450-480 MHz split can be programmed into the 440 MHz range.31 Similar to the TKR-750, optimal sensitivity in the amateur band may require realignment of the receiver front-end filters. The DB25 accessory port makes these models popular for interfacing with external controllers and digital mode systems like MMDVM.30

2.2.3 TK-5000 Series (P25 Digital/Analog Portables & Mobiles)

Kenwood TK-5210
Kenwood TK-5810
  • TK-5210 (VHF Portable)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-95DG or KPG-95DGN 33; KPG-36 Cable.33
    • Modifications/Notes: Models with the K, K2, or K3 suffix cover 136-174 MHz, making them fully compatible with the 2m band for both P25 digital and analog FM modes.36 No hardware modifications are needed.
  • TK-5310 (UHF Portable)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-95DG or KPG-95DGN 37; KPG-36 Cable.37
    • Modifications/Notes: The Type 2 (380-470 MHz) or Type 4 (400-470 MHz) versions are ideal for full 70cm band coverage.38 The Type 1 (450-520 MHz) version can be programmed out-of-band, with users reporting successful operation on 440 MHz, though performance may be degraded at the band edges.38
  • TK-5710 / TK-5710H (VHF Mobile)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-95DG 8; KPG-43 Cable.40
    • Modifications/Notes: Fully compatible with the 2m ham band due to its 136-174 MHz coverage.8 No modifications are required. The high-power ‘H’ model provides 110 watts of output.42
  • TK-5810 / TK-5810H (UHF Mobile)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-95DG 8; KPG-43 Cable.40
    • Modifications/Notes: Requires the 380-470 MHz band split for full 70cm coverage. The 450-520 MHz split requires out-of-band programming.
  • TK-5410 (700/800MHz Portable)
    • Ham Band Support: No. This radio operates exclusively in the 700/800 MHz public safety bands and is not convertible to any listed ham bands.43
  • TK-5910 (700/800MHz Mobile)
    • Ham Band Support: No. This radio operates exclusively in the 700/800 MHz public safety bands and is not convertible to any listed ham bands.45
Kenwood TK-5220
  • TK-5220 (VHF Portable)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-112D 47; KPG-36 Cable.47
    • Modifications/Notes: The 136-174 MHz split fully covers the 2m band.48 No modifications are needed.
  • TK-5320 (UHF Portable)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-112D 39; KPG-36 Cable.39
    • Modifications/Notes: Requires the Type 2 (400-470 MHz) or Type 4 (400-470 MHz) version for proper 70cm band operation.39 The K6 model (380-400 MHz) is not suitable for the 70cm amateur band.52
Kenwood TK-5720
  • TK-5720 (VHF Mobile)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-112D 48; KPG-46 Cable.48
    • Modifications/Notes: Covers 136-174 MHz. No modifications are needed for 2m operation.
  • TK-5820 (UHF Mobile)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-112D 48; KPG-46 Cable.48
    • Modifications/Notes: Requires the 400-470 MHz split for best performance. The 450-520 MHz split will require programming out-of-band.54

2.2.4 TK-x80 & TK-x90 Series (Legacy Analog Portables & Mobiles)

This series of radios represents a “golden age” for amateur radio conversion. Their long service life in public safety has led to wide availability on the surplus market. They are exceptionally durable, and their software and firmware are well-understood by the hobbyist community, resulting in a wealth of documentation, third-party utilities, and established modification procedures. Their purely analog design simplifies the conversion process compared to newer, multi-protocol digital radios, making them highly reliable and attractive candidates for conversion projects.

Kenwood TK-280
  • TK-280 (VHF Portable)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-49D 15; KPG-36 Cable.55
    • Modifications/Notes: The Type 2 split (136-162 MHz) is ideal for full 2m coverage. The Type 1 split (146-174 MHz) can be programmed down into the 144-146 MHz range by overriding software errors, with minimal reported performance degradation.56
  • TK-380 (UHF Portable)
    • Ham Band Support: 70cm: Yes (Model Dependent).
    • Software/Cable: KPG-49D 57; KPG-36 Cable.57
    • Modifications/Notes: Requires either the Type 1 (450-490 MHz) or Type 3 (400-430 MHz) split. The Type 1 split is confirmed to program down to 440 MHz by ignoring software errors.57
  • TK-480 / TK-481 (800/900MHz Portable)
    • Ham Band Support: 900MHz: Yes (TK-481 only). The TK-480 is an 800 MHz radio and is not suitable for any listed ham band.60
    • Software/Cable: Version 1: KPG-35D (DOS). Version 2: KPG-49D (Windows) 17; KPG-36 Cable.
    • Modifications/Notes: Conversion requires a mandatory software hack using the KW900EZP.exe utility. This program hex-edits the KPG-49D data file to shift frequencies from the commercial 935 MHz range to the amateur 927 MHz range.17 Version 2 radios are highly preferred due to their use of modern Windows-based software and additional programmable features.61
Kenwood TK-690H Dash mount
Kenwood TK-690H Remote mount
  • TK-690H (Low-Band VHF Mobile)
    • Ham Band Support: 6m: Yes (Type 3). 10m: Yes (Type 1).
    • Software/Cable: KPG-44D 9; KPG-43 Cable.62
    • Modifications/Notes:
      • 10m: The Type 1 (29.7-37.0 MHz) split is required.6 Out-of-band programming for the 29.5-29.7 MHz FM segment is accomplished using the KWLBHEZP.EXE hex-editing utility.9 No hardware VCO adjustments are typically needed.
      • 6m: The Type 3 (40.0-50.0 MHz) split is required.6 This conversion necessitates a hardware modification to the VCOs. Small brass slugs (1/16″ diameter) must be inserted into the VCO coils to raise their resonant frequency to cover the 50-54 MHz band.6 The low-pass filter may also require component changes to achieve full power output.63
  • TK-790 / TK-790H (VHF Mobile)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-44D 64; KPG-43 Cable.62
    • Modifications/Notes: The common 148-174 MHz split is easily programmed down into the 144-148 MHz amateur band by overriding software errors.64 This model is exceptionally popular for 2m packet and APRS applications due to its rugged construction and 9600-baud data capability.66
  • TK-890 / TK-890H (UHF Mobile)
    • Ham Band Support: 70cm: Yes.
    • Software/Cable: KPG-44D 64; KPG-43 Cable.62
    • Modifications/Notes: The common 450-490 MHz split can be programmed out-of-band. However, the VCO may lose lock below 445-446 MHz on some units. This can be corrected by adjusting the VCO trimmer capacitor while monitoring the steering line voltage.11
Kenwood TK-980
  • TK-980 (800MHz Mobile) & TK-981 (900MHz Mobile)
    • Ham Band Support: 900MHz: Yes (TK-981 only). The TK-980 is an 800 MHz radio and is not suitable.60
    • Software/Cable: KPG-49D 68; KPG-46 or KPG-4 Cable.69
    • Modifications/Notes: A mandatory software hack is required using the KW900EZP.exe utility to hex-edit the KPG-49D data file, shifting frequencies from the 935 MHz commercial range to the 927 MHz amateur band.69 For optimal receive performance, especially for repeater use, the stock 936 MHz front-end filters must be physically replaced with 915 MHz filters. The VCO may also require modification or replacement to ensure a stable lock at 902 MHz.18

2.2.5 Other Analog Models

Kenwood TK-7102
Kenwood TK-7102 Service manual
https://www.manualslib.com/manual/582240/Kenwood-Tk-7102.html
  • TK-7102 / TK-7108 (VHF Mobile)
    • Ham Band Support: 2m: Yes (Split Dependent).
    • Software/Cable: KPG-70D 71; KPG-46 Cable.71 Also supported by CHIRP.73
    • Modifications/Notes: Requires the M2 type (136-162 MHz) split for full 2m coverage.71 The M type (146-174 MHz) can be programmed down but may have reduced performance at the band edge.
  • TK-8102 / TK-8108 (UHF Mobile)
    • Ham Band Support: 70cm: Yes (Split Dependent).
    • Software/Cable: KPG-70D 75; KPG-46 Cable.75 Also supported by CHIRP.76
    • Modifications/Notes: Requires the M3 type (400-430 MHz) for the lower part of the 70cm band or the M type (450-490 MHz) for the upper part.77 The M type can be programmed down to 440 MHz.
Kenwood TK-7302
  • TK-7302V / TK-7302H / TK-7302HV (VHF Mobile)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-124D 79; KPG-46 Cable.79
    • Modifications/Notes: The 136-174 MHz split covers the entire 2m band.80 No modifications are necessary.
  • TK-8302U / TK-8302H / TK-8302HU (UHF Mobile)
    • Ham Band Support: 70cm: Yes.
    • Software/Cable: KPG-124D 80; KPG-46 Cable.83
    • Modifications/Notes: The 450-520 MHz split can be programmed out-of-band for 70cm use.80
Kenwood TK-2360
  • TK-2360 (VHF Portable)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-128D 84; KPG-22 Cable.85
    • Modifications/Notes: The 136-174 MHz split covers the 2m band.85 No modifications are necessary.
  • TK-3360 (UHF Portable)
    • Ham Band Support: 70cm: Yes (Split Dependent).
    • Software/Cable: KPG-128D 84; KPG-22 Cable.86
    • Modifications/Notes: Requires the Model 2 (400-470 MHz) split for 70cm operation. The Model 1 (450-520 MHz) split is not suitable.86
Kenwood TK-2312
  • TK-2312 (VHF Portable)
    • Ham Band Support: 2m: Yes.
    • Software/Cable: KPG-134D 87; KPG-22 Cable.
    • Modifications/Notes: The TK-2312K model covers 136-174 MHz.88 The KPG-134DN software is “ham friendly” and allows wideband FM programming in the 143-149 MHz range without issue.88
  • TK-3312 (UHF Portable)
    • Ham Band Support: 70cm: Yes (Split Dependent).
    • Software/Cable: KPG-134D 87; KPG-22 Cable.
    • Modifications/Notes: Requires the K2 model (400-470 MHz) for 70cm use. The K model (450-490 MHz) or K2 model (470-512 MHz) are not suitable for the main 440 MHz portion of the band.88

2.2.6 NX-Series & Viking Series (Digital/Analog)

The newest generations of radios, such as the Kenwood NX and Viking series, present a significant challenge for amateur radio conversion. These are advanced, multi-protocol digital platforms designed for complex commercial and public safety systems. While their RF hardware is often wide-banded and technically capable of operating on amateur frequencies (e.g., the NX-3200 covers 136-174 MHz), the complexity of their software, feature licensing, and a lack of presence on the affordable surplus market have resulted in a near-total absence of community-developed knowledge or established conversion procedures.90 Unlike the older analog models, there are no well-documented out-of-band programming methods, hex-editing utilities, or VCO adjustment guides available. Furthermore, enabling features like wideband FM, which is standard on the 70cm ham band, may require the purchase of an expensive software license key.93 Consequently, while technically possible, the conversion of these modern radios is not considered a practical or documented endeavor for the average amateur operator at this time.

Kenwood NX-5000
  • NX-5000 Series (NX-5200, 5300, 5700, 5800, etc.)
    • Ham Band Support: Yes (I have worked with them in the shop -Lucas)
    • Software/Cable: KPG-D1N/K/D2N/K/D3N/K; Various cables.
    • Modifications/Notes: High-end multi-protocol (P25, DMR, NXDN) radios.90 Hardware covers ham bands, but there is no public documentation for amateur conversion. Not recommended.
Kenwood NX-3000
  • NX-3000 Series (NX-3200, 3300, 3400, etc.)
    • Ham Band Support: Yes (I have worked with them in the shop before and they typically work well out of band – Lucas). The NX-3400 operates in the 800/900 MHz commercial bands, but does not cover the 902-928 MHz amateur allocation.95
    • Software/Cable: KPG-D6NK; Various cables.
    • Modifications/Notes: Dual-protocol (NXDN/DMR) radios.91 Requires expensive software that cannot be cracked.
Kenwood NX-1000
  • NX-1000 Series (NX-1200, 1300, 1700, 1800, NXP1200, NXP1300)
    • Ham Band Support: Yes (I have worked with them -Lucas)
    • Software/Cable: KPG-D6NK; Various cables (e.g., KPG-22 for portables).
    • Modifications/Notes: Entry-level digital radios.97 ProTalk (NXP) versions are pre-programmed for business use and may be difficult to convert to non-ProTalk firmware.99 Wideband FM requires a license key.93 Requires expensive software that cannot be cracked.
Kenwood EFJohnson Viking VP8000
Kenwood EFJohnson Viking VM8000
  • Viking Series (VP-7000, VP-8000, VM-6000, VM-7000, VM-8000, VM-9000)
    • Ham Band Support: Yes.
    • Software/Cable: Armada Fleet Management Software; Various cables.
    • Modifications/Notes: These are high-end, multi-band P25 public safety radios now manufactured by Kenwood.92 The hardware is capable of operating on amateur bands.103 However, the software is complex and tightly controlled, and there is no community documentation for amateur conversion. Not recommended for amateur use. The “Viking VM-9000” appears to be a misnomer, as research points to vintage E.F. Johnson “Viking” tube transmitters, which are entirely different equipment.105
    • I cannot distribute the software under any circumstances, as it is licensed for work, however I can program these to the ham bands for you. Visit my shop online here.

Section 3: Summary and Strategic Recommendations

3.1 Most “Ham-Friendly” Commercial Models

Based on the available data, a clear hierarchy of models emerges based on their suitability and ease of conversion for amateur radio use. The most practical and rewarding projects involve radios that are widely available, well-documented, and require minimal, if any, hardware modification.

  • For 2m (144-148 MHz): The TK-790 and TK-7180 mobile radios stand out. Both feature appropriate band splits that can be easily programmed into the 2m band with a simple software override. The TK-790 is particularly noted for its ruggedness and is a community favorite for dedicated packet and APRS use.66 The TK-7180 offers more modern features in a similar robust package.7
  • For 70cm (420-450 MHz): The TK-880 and the K2-split TK-8180 are excellent choices. The TK-880 is a proven performer with straightforward software-only conversion.5 The TK-8180 (K2 split, 400-470 MHz) is a more modern option that covers the entire band without any modifications required.12
  • For 6m (50-54 MHz) & 10m (28-29.7 MHz): The TK-690H is the only viable option on the provided list. The Type 1 split (29.7-37.0 MHz) can be converted for 10m FM use with a software hex-edit utility.9 The Type 3 split (40.0-50.0 MHz) can be converted for 6m, but this is an advanced project requiring significant hardware modification to the VCOs.6
  • For 900MHz (902-928 MHz): The TK-981 mobile and the TK-481 (Version 2) portable are the standard choices for this band. Both require a mandatory software hack via the KW900EZP.exe utility.17 For serious weak-signal or repeater use, both models also benefit from replacing the stock front-end filters and may require VCO adjustment for optimal performance across the band.18

3.2 A Note on Software Legality and Best Practices

While third-party utilities and out-of-band programming techniques are common in the amateur radio community, the Kenwood Programming Software (KPG) itself is copyrighted commercial software. It is strongly recommended that operators purchase a legal copy of the required KPG software from an authorized Kenwood LMR dealer.5 This ensures access to legitimate, virus-free software and supports the manufacturer.

Likewise, KPG-D1N, KPG-D6N, and KPG-D3N are expensive (over $150) for each computer. This license is cloud connected and cannot be reused or cracked.

Finally, it is the sole responsibility of the licensed amateur radio operator to ensure that any modified commercial transmitter continues to meet all regulatory requirements under FCC Part 97 rules. This includes verifying that the transmitter’s signal is free of spurs and harmonics and that its deviation and power levels are within the legal limits for the frequency of operation.

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