CatMeters.com
Handcrafted accessories for..
⚠️ Attention U.S. Customers
Due to the removal of the US de minimis exemption,
15% tariff now applies to all purchases shipped to the United States (including territories).
This tariff is payable by you upon import.
Thank you for your understanding. 73 de Chris – ZL1CVD
All Products
Unique CatTouch
4" color IPS display & touch screen controller..
In stock & shipping now.
Its big! CatTouch7
Huge 7" color display & touch screen controller..
In development, shipping soon.
Add more knobs with CatKnobz
6 user programmable knobs..
In stock & shipping now.
The original CatDisplay
3.5" color IPS display...
In stock & shipping now.
For builders & integrators CatKDU
3.5" color IPS display & touch screen controller..
Limited stock, shipping now.
CatMeters for older rigs
3.5" color IPS display...
In stock & shipping now.
Easy digital comms with USBRigLink
Isolated USB sound card with built-in VOX PTT..
In stock & shipping now.
2ndCAT Adapter
Adds another CAT port..
In stock & shipping now.
CatTouch7
Its BIG, multifunctional, touch control, no computer needed..For FT-991, FT-991A, FTdx10, FTdx101D, FTdx101MP, FTdx1200 & FTdx3000
Early release – may contain bugs
Firmware easily updated via SD card (not included)
Only RS-232 version available at present
TTL version for FT-710 coming soon
Large 7" TFT resistive touchscreen
Horizontal or vertical orientation
Easy setup – no computer required, simple to use
Change many settings with the included stylus
Multiple meters (or bars) for precise fine-tuning
Includes CAT cable & touchscreen stylus
US$170.00 each
Shipping soon.
Combined shipping
from US$22.50 worldwide
CAT cable included
DC power cable NOT included
Shipping soon.
Combined shipping
from US$22.50 worldwide
CAT cable included
DC power cable NOT included
Specifications
All models
Includes: CAT cable & touchscreen stylusDisplay: 7.0" TFT resistive touchscreen
Voltmeter: Measures CatTouch DC voltage; 0.1V resolution; updates every minute
CAT Connection: RS-232C version, RJ45 (Cisco console cable compatible)
CAT Speed: 4800, 9600, 19200 (default) & 38400
SD Card: SDSC or SDHC; 2GB/4GB/8GB/16GB; FAT16 or FAT32 format only
Zulu/GMT/UTC Time: Updated from transceiver clock settings
Local Time: User-definable, −14 to +14 hours; 15-minute intervals
Case Construction: 3D-printed biodegradable PLA; not suitable for direct sunlight
Mounting: Desktop use (landscape or portrait) with wire “bail” style stand
Size (W × H × D), Weight: 115 mm × 185 mm × 35 mm; 450 g
CatTouch 232C version
Compatibility: FT-991/A, FTdx10, FTdx101D/MP, FTdx1200, FTdx3000Operating Voltage: 7–30 V DC
Operating Current: up to 300 mA
Power Connection: 2.1 mm DC jack; POS from CatKnobz
POS (Power Over Serial): YES (DB9F: +V Pin 7 & 8; GND Pin 5 & shell)
CatTouch TTL version
Compatibility: FT-710 onlyDC Connections: Powered by FT-710 TUNER/LINEAR port; no external power required
TUNER/LINEAR Pass-Through: No pass-through port
Downloads
Coming soon…CatTouch
Informative, multifunctional touch control — no computer needed.For FT-710, FT-991, FT-991A, FTdx10, FTdx101D, FTdx101MP, FTdx1200 & FTdx3000
Multiple screens show important settings.
Change many settings with the touchscreen stylus.
Unique microphone and speaker equalizer setup.
Visualize SWR response for optimal performance.
Voltmeter monitors transceiver power supply.
Includes CAT cable & touchscreen stylus
Watch this video..
US$140.00 each
Combined shipping from US$20.75 worldwide
CAT cable included
DC power cable not included
HTSUS Tariff Code: 8529.90.9900
Combined shipping from US$20.75 worldwide
CAT cable included
DC power cable not included
HTSUS Tariff Code: 8529.90.9900
Note: FT-710 still has CAT issues despite Yaesu firmware updates.
MSHV is a reliable WSJT-X alternative with no issues. FT-710 has issues handling multiple CAT ports. WSJT-X errors due to FT-710 "?" response.
Try MSHV by LZ2HV.
It works great and doesn’t error!
CatTouch guides & explanation for each screen…
Setup Guide
BAR screen
CLK screen
MTR screen
SPK screen
MIC screen
SWR screen
WiFi screen
CFG screen
JPG screen
Latest FAQs
eHam.net reviews
2E0BAF review
K6UDA review
CatTouch MTR screen
More MTR screen details here…
Default power-up screen (user-selectable).
Meters have pedestal bar graph.
Change settings via touch buttons down the side.
IF plot shows shift, width, APF, notch & contour — great for FT-991A.
Displays transceiver Zulu (GMT/UTC) & local time.
Voltmeter for SOTA / POTA / Field Day battery monitoring.
CatTouch BAR screen
More BAR screen details here…
Large, vivid bar meters ideal for quick information.
Perfect for digital modes like FT8, FT4, etc.
Change settings via touch buttons down the side.
CatTouch MIC screen
More MIC screen details here…
Displays parametric microphone equalizer based on transceiver settings.
Touchscreen changes frequency & level for each band.
TX bandwidth for selected mode shown in red.
Mode automatically updated by transceiver — can also be selected.
Automatically shows PARA or PPARA based on transceiver MIC EQ & PROC settings.
These settings can be saved or loaded from internal EEPROM or SD card.
CatTouch can transfer settings between compatible transceivers.
Settings stored in small, easy-to-email text files.
CatTouch SPK screen
More SPK screen details here…
Drag a curve to change levels (bass/mid/treble).
Touching SSB, AM, etc. shows speaker equalizer for the chosen mode.
Red lines show LCUT & HCUT frequency/slope if enabled.
FTdx10 & FT-710 are the only models with a speaker equalizer.
CatTouch CLK screen
More CLK screen details here…
Works with all models that have an internal clock.
Local time is calculated from transceiver UTC time.
Set local offset on the CFG screen (±14 hours, 15-minute increments).
Clock is great for SOTA / POTA / Field Day & logbook entries.
CatTouch WiFi screen
More WiFi screen details here…
Handy 2.4 GHz Wi-Fi channel scanner.
Ideal for finding the least congested channel.
CatTouch SWR screen
More SWR screen details here…
Plots SWR response for the currently tuned band.
Tests & graphs 40 points.
If an SD card is inserted, stores & graphs prior measurements so you can compare!
Watch this video
CatTouch CFG screen
More CFG screen details here…
Customize and calibrate CatTouch.
CatTouch JPG screen
More JPG screen details here…
Slideshow of 480×320 JPG images from SD card.
Great for displaying awards, QSL cards, etc.
CatTouch touch calibration
Pops up to calibrate the touchscreen.
Touch as close as possible to the arrow point.
Use the provided stylus and be as accurate as practical.
CatTouch flipped (LHS)
CatTouch flipped (RHS)
CatTouch desk (RHS)
CatTouch desk (LHS)
CatTouch rear
On/Off button for external DC power
Easy power connection via 2.1 mm jack or screw terminals
FT-710 version has no power switch, socket, or screw terminals
CatTouch SD card insert
To update firmware, download the latest version at the bottom of the page.
Watch this video
Unzip the file and copy CatTouch.fw to a FAT32-formatted SD card.
This firmware file must be in the root folder (e.g.,
D:\CatTouch.fw).Unmount or eject the SD card from your computer to close the file.
On FT-710, turn off the transceiver and leave CatTouch connected.
For all other models, unplug the CAT cable from CatTouch.
Insert the card into CatTouch and turn it on (for FT-710, turn on the transceiver).
CatTouch automatically finds new firmware on the SD card and installs it.
Do not turn off CatTouch or remove the SD card until it has finished and restarted.
Once the new firmware is installed, the Calibrate Touch screen appears.
You MUST use the provided stylus and touch each arrow when prompted.
If you touch the wrong area, calibration will detect an error and repeat until correct.
Tip: Put your glasses on and use the provided stylus.
The screen has a resistive touch panel, so the stylus must be hard and smooth to avoid scratching the screen. A soft stylus will not work.
Specifications
All models
Includes: 1 m CAT cable & touchscreen stylusDisplay: 4.0" IPS TFT resistive touchscreen
Voltmeter: Measures CatTouch DC voltage; 0.1 V resolution; updates every minute
CAT Connection: RS-232C version, RJ45 (Cisco console cable compatible)
CAT Speed: 4800, 9600, 19200 (default) & 38400
SD Card: SDSC or SDHC; 2 GB / 4 GB / 8 GB / 16 GB; FAT16 or FAT32 format only
Zulu/GMT/UTC Time: Updated from transceiver clock settings
Local Time: User-definable, −14 to +14 hours; 15-minute intervals
Micro-B USB: Used for monitoring CAT commands & development
Case Construction: 3D-printed biodegradable PLA; not suitable for direct sunlight
Size (W × H × D), Weight: 120 mm × 70 mm × 90 mm; 180 g
CatTouch 232C version
Compatibility: FT-991, FT-991A, FTdx10, FTdx101D, FTdx101MP, FTdx1200, FTdx3000Operating Voltage: 7–30 V DC or 5 V via Micro-B USB
Operating Current: 150 mA on Wi-Fi screen; under 100 mA on all other screens
Power Connection: 2.1 mm DC jack; screw terminals; Micro-B or USB-C; POS from CatKnobz
POS (Power Over Serial): YES (DB9F: +V pins 7 & 8; GND pin 5 & shell)
CatTouch TTL version
Compatibility: FT-710 onlyDC Connections: Powered by FT-710 TUNER/LINEAR port; no external power required
TUNER/LINEAR Pass-Through: Has TUNER/LINEAR pass-through port for linear amplifiers
ABCD band data: Enabling CAT-3 for CatTouch disables Yaesu ABCD band data.
Tuners like FC-40 that use ABCD band data won’t work with CatTouch.
POS (Power Over Serial): Not supported
Downloads
InstructionsCatTouch Install Guide
CatTouch Install Guide (Français by F4DYK)
Latest firmware
CatTouch Firmware v2.51 — released 24 August 2025
Data
Power Over Serial (POS) information
CatTouch RS-232 CAT cable wiring
3D Printing
Latest CatTouch Case (STL)
Original CatTouch Case (STL)
Alternative CatTouch Case by KD9WNR
Alternative CatTouch Case by M0KPO
CatKnobz
Provides intuitive and versatile control..For FT-710, FT-991, FT-991A, FTdx10, FTdx101D & FTdx101MP
Introducing CatKnobz – the game-changer for Yaesu transceivers.
Six user programmable knobs & OLED display.
Easily adjust key settings without navigating multiple menus.
Tailor your setup to suit different operating conditions (FT8, SSB ragchew, CW, Etc).
US$130.00 each
Combined shipping
from US$20.75 worldwide
CAT cable included
DC power cable NOT included
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
CAT cable included
DC power cable NOT included
HTSUS Tariff Code: 8529.90.9900
Six customizable knobs for easy setup
Turning a knob adjusts transceiver settings
Change knob function effortlessly, just press and turn
OLED display indicates active setting
Simple installation and user-friendly operation
Easy alternative to navigating menus
Plugs into 232C or TUNER/LINEAR (FT-710 only) port
Pass-through capability
Daisy chain multiple CatKnobz units
Compatible with CatTouch
Power Over Serial – one unit powers all
Eco-friendly PLA 3D printed bracket
Avoid direct sunlight and high temperatures
Handmade in New Zealand
CatKnobz OLED Display Labels and Descriptions
| Display | Description |
|---|---|
| AESS | AESS % balance (for FT-710 only) * |
| AGC | AGC Speed (Off, Fast, Mid, Slow, Auto) |
| AMC | Microphone AMC Level * |
| APF | APF Level |
| BAND | Band Up / Down |
| CTR FRQ | Contour Frequency |
| CTR LVL | Contour Level |
| CTR WIDTH | Contour Width |
| CW PCH | CW Pitch |
| CW SPD | CW Keyer Speed |
| DNR | DNR Level |
| IPO AMP1/2 | Switch between IPO, Amp1, Amp2 |
| MEM | Memory Up/Down |
| METER | TX Meter (CMP, ALC, PO, SWR, ID, VDD) |
| MIC LVL | Microphone Gain |
| MODE | Modulation Mode |
| MONI | Monitor Level (sidetone) |
| NB | Noise Blanker Level |
| NTCH | Notch Filter Frequency |
| PROC | Microphone Speech Processor Level |
| RF GAIN | Receiver RF Gain Level |
| RF PWR | TX Power (+/- 2W Increments) |
| SCP LVL | Scope Level * |
| SCP MODE | Scope Mode * |
| SCP PEAK | Scope Peak * |
| SCP SPAN | Scope Span * |
| SCP SPD | Scope Speed * |
| SHFT | IF Shift Frequency |
| SQLCH | Squelch Level |
| VFO | VFO Up / Down |
| VOLUME | AF Volume |
| VOX Anti | Microphone Anti VOX Gain * |
| VOX DLY | Microphone VOX Delay |
| VOX LVL | Microphone VOX Gain |
| WDTH | IF Width |
| * not supported by FT-991/A |
 CatKnobz on FT-710 - front |
|---|
 CatKnobz on FT-710 - bottom |
 CatKnobz on FT-991A - side |
 CatKnobz on FT-991A - bottom |
 CatKnobz on FTdx10 - front |
 CatKnobz on FTdx10 - side |
 CatKnobz on FTdx10 - bottom |
 RS232 CatKnobz connected to CatTouch. |
Specifications All Models
Includes: 1x CAT cableSize (WxHxD): 205mm x 39mm x 50mm
Weight: 130g
Display: 0.91" OLED
Firmware Updatable: Requires USBASP programmer, header pins & soldering
Specifications RS232 Version
DC Connection: 2.1mm Jack (center positive) + Screw type DC TerminalsOperating Voltage: 7V DC to 30V DC via 2.1mm Jack
Operating Current: 150mA
CAT Speed: 4800, 9600, 19200 (default) & 38400
CAT Input: RJ45
Specifications TTL Version
DC Connection: Powered by transceiver TUNER/LINEAR JACKPass Through Port: YES, Mini-DIN 8 same speed as input CAT port
TUNER/LINEAR Support: TX INH, TX GND & CAT-3 only. No band data.
CAT-3 Speed: 4800, 9600, 19200 (default) & 38400
CAT-3 Input: Mini-DIN 8
Downloads
Instructions..CatKnobz Instructions (latest firmware)
Latest Firmware..
Latest CatKnobz Firmware v6.4 (11th September 2025)
CatKnobz Firmware Update Instructions
OLED Replacement..
CatKnobz OLED Replacement Instructions
Data..
Power Over Serial (POS) Information
CatKnobz RS232 CAT Cable wiring
3D Printing..
CatKnobz 3D Bracket FT-991 STL file
CatKnobz 3D Bracket FTdx10 STL file
CatKnobz 3D Bracket FTdx10 by M0KPO
Instructions for older models..
Old CatKnobz Generic Instructions
Old CatKnobz Generic Instructions (Français by F4DYK)
Old CatKnobz FTdx10 Instructions
Old CatKnobz FTdx10 Instructions (Français by F4DYK)
Firmware for older models..
Old CatKnobz Generic Firmware v4.7
Old CatKnobz Ftdx10 Firmware v4.3
The original CatDisplay
Innovative radio tech by ZL1CVDFor FT-100/D, FT-817/ND, FT-818ND, FT-857/D & FT-897/D
US$130.00 each
Combined shipping
from US$20.75 worldwide
CAT cable included
DC cable NOT included, not normally required
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
CAT cable included
DC cable NOT included, not normally required
HTSUS Tariff Code: 8529.90.9900
Instantly see most settings
Ideal for the visually impaired
Makes transceivers easier to use
Compact, easy to install, easy to use
Helps with faulty displays missing lines
Handmade in New Zealand
Biodegradable PLA 3D printed case
Not suitable for direct sunlight or hot cars
S-Meter is indicative for HF only
Meters are indicators only and not calibrated
Supports Analog S-Meter output
Watch this video..
Specifications
Size (WxHxD):100mm x 65mm x 29mmWeight:120g
Display:3.5" TFT
CAT Connection:Mini-Din 8
CAT Speed:Automatic (4800, 9600, 38400); FT100/D is fixed 4800
Power Source:CAT or 2.1mm DC jack
DC Connection:2.1mm Jack, center positive
Operating Voltage:5V via CAT or 7V to 30V DC via 2.1mm Jack
Operating Current:150mA
 CatDisplay with FT-897 |
|---|
 CatDisplay for FT-857 or FT-897 |
 CatDisplay FT-857/FT-897 Screen Layout |
 CatDisplay for FT100 |
 CatDisplay for FT100 Screen Layout |
 CatDisplay connected to FT-897D via 2nd CAT port |
 All models support flip or inverted screen |
Downloads
CatDisplay FT-817/818/857/897 InstructionsCatDisplay FT-817/818/857/897 Instructions (Français by F4DYK)
CatDisplay FT-857/897 Screens
CatDisplay FT-857/897 Screens (Français by F4DYK)
CatDisplay FT-100/100D Instructions
CatDisplay FT-100/100D Instructions (Français by F4DYK)
Older CatDisplay (slide switch) 3D STL Files
Latest CatDisplay (push button) 3D STL Files
CatMeters
For FT-450, FT-950, FT-991/A, FT-2000, FTdx10, FTdx101D/MP,FTdx1200, FTdx3000, FTdx5000 & FTdx9000
US$130.00 each
Combined shipping
from US$20.75 worldwide
CAT cable included
DC cable NOT included
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
CAT cable included
DC cable NOT included
HTSUS Tariff Code: 8529.90.9900
Monitor ALC, COMP, SWR, W & A
All while you're transmitting!
6 easy to read analog meters
Easy to read indicators down the middle
Contour, APF, Notch, Shift & Width indicators
Displays date & time on compatible transceivers
Sold assembled & tested with CAT cable
Compact, easy to install, easy to use
Handmade in New Zealand
Works with CatKnobz
Biodegradable PLA 3D printed case
Not suitable for direct sunlight or hot cars
Meters are indicative only & not calibrated
Does not work with CatDisplay232
With Analog S-Meter output
Watch this video..
CatMeters with FTDX10
Specifications
Size (WxHxD): 100mm x 65mm x 29mmWeight: 120g
Display: 3.5" TFT
CAT Connection: RJ45
CAT Speed: 19200 (default) or 38400
Power Source: 2.1mm DC jack or POS from CatKnobz
DC Connection: 2.1mm Jack, center positive
Operating Voltage: 7V to 30V DC via 2.1mm Jack or CatKnobz
Operating Current: 150mA
Tested with FT-991A, FTDX10 & FTdx101.
Not all models supported all features
|
CatMeters screen |
|---|
 CatDisplay232, FT-991A & CatKnobz - CatMeters & FTDX10 |
|
Support flipped or inverted screen like CatDisplay |
Downloads
CatMeters InstructionsCatMeters Instructions (Français by F4DYK)
Power Over Serial (POS) Information
CatMeters Case STL
CatMeters RS232 CAT Cable wiring
CatDisplay232
DISCONTINUEDFor FT-450, FT-950, FT-991, FT-2000, FTdx10, FTdx101,FT-DX1200, FT-DX3000, FT-DX5000 & FT-DX9000
Watch this video..
Less use of menus
Instantly see most settings
Ideal for the visually impaired
Makes transceivers easier to use
Contour, APF, Notch, Shift & Width
Monitor ALC, WATTS & SWR while you TX
Compact, easy to install, easy to use
Works with CatKnobz
Does not work with CatMeters
S-Meter is indicative for HF only
Biodegradable PLA 3D printed case
Not suitable for direct sunlight or hot cars
Handmade in New Zealand
Meters are indicators only and not calibrated
Supports Analog S-Meter output
Watch this video..
CatDisplay232
Specifications
Size (WxHxD):100mm x 65mm x 29mmWeight:120g
Display:3.5" TFT
CAT Connection:RJ45
CAT Speed:19200 (default) or 38400
CAT Powered:NO
Power Source:2.1mm DC jack or Power Over Serial (POS)
DC Connection:2.1mm Jack, center positive
Operating Voltage:7V to 30V DC via 2.1mm Jack
Operating Current:150mA
Indicators work with FT-991A, some are not supported by other models
 CatDisplay232 screen |
|---|
 CatDisplay232 with FT-991A |
|
Support flipped or inverted screen |
Downloads
CatDisplay232 InstructionsCatDisplay232 Instructions (Français by F4DYK)
Power Over Serial (POS) Information
CatDisplay232 Screen
CatDisplay232 Compatibility
CatDisplay Case STL (slide switch)
CatDisplay Case STL (push button)
CatDisplay232 RS232 CAT Cable wiring
2ndCAT Adapter
For FT-857, FT-857D, FT-897 & FT-897D only
Watch this video..
US$30.00 each
Combined shipping
from US$20.75 worldwide
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
HTSUS Tariff Code: 8529.90.9900
Easy to install adapter
Includes short microphone port cable
Same socket, same CAT signals as rear port (RXD, TXD, GND)
Works independent to rear CAT port
Handmade in New Zealand
Select CAT in Microphone Select extended menu #059
Set desired baud rate in CAT RATE extended menu #019
Includes short microphone port cable
Same socket, same CAT signals as rear port (RXD, TXD, GND)
Works independent to rear CAT port
Handmade in New Zealand
FT-857 & FT897 are great "shack in a box" transceivers.
With digital modes like FT8 now so popular, a second CAT port is often needed.
If rear CAT is taken up with a tuner or linear, 2ndCAT provides a much needed 2nd CAT port.
Easy set up
Unplug microphone & connect up 2ndCAT adapter as picturedSelect CAT in Microphone Select extended menu #059
Set desired baud rate in CAT RATE extended menu #019
 2ndCAT connected to FT897 & CatDisplay |
|---|
|
2ndCAT supplied with short microphone cable |
To transceiver microphone socket & 2nd CAT port |
To microphone only |
USBRigLink
Isolated USB sound card with VOX PTTFor transceivers requiring a USB audio interface.
Adds digital modes to Amateur, Commercial & Military transceivers.
Unlock digital modes like FT4, FT8, JT65, PSK31, RTTY, FreeDV, VARA, Etc with USBRigLink.
Provides seamless, isolated audio performance with VOX PTT circuit.
US$80.00 each
Combined shipping
from US$20.75 worldwide
No cables are included
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
No cables are included
HTSUS Tariff Code: 8529.90.9900
Superior Audio Isolation
High-quality Bourns isolating transformers ensures complete isolation of audio signals,
helping to prevent ground loops and RF interference.
Dedicated USB Audio Codec
Integrated CMedia audio codec converts analog audio to USB data,
delivering crystal-clear sound to and from your computer.
Ideal for digital mode programs such as MSHV, WSJTX, and more.
Adjustable Microphone & Speaker Audio Levels
10-turn pots provide precise control over audio levels,
ensuring optimal clarity for both transmit and receive.
Perfect for fine-tuning digital mode modulation and reception.
Integrated VOX PTT
The VOX (sound activated) circuit automatically keys the PTT (transmitter) when it detects transmit audio from PC.
PTT is opto-coupled which ensures isolation between the transceiver and computer.
Super low 0.18 Ohm FET PTT switching suits both old and new transceiver.
Compatibility
Spports all audio based digital modes like FT4, FT8, JT65, PSK31, RTTY, FreeDV, VARA, Etc
Perfect for bringing older amateur, commercial & military transceivers into the digital age.
Screw terminals for simple connection of transceiver’s speaker, ground, microphone, and PTT.
Solid 3D printed case provides a good level of protection.
PG7 gland secured by case screws.
Easy Audio Configuration
PC microphone and speaker settings control USBRigLink’s receive and transmit levels.
Additional 10-turn pots for fine tuning permanent RX & TX levels.
Plug-and-Play with Modern Operating Systems
C-Media audio codec is natively supported by most modern operating systems.
Eliminates the hassle of installing drivers.
Works with popular PC software such as MSHV, WSJT-X, JTDX, and more.
Even works with FT8CN, an FT8 solution for Android devices!
Specifications
Isolation: Audio (2k VRMS); PTT (2.5k VRMS)Audio Codec: C-Media 16-bit ADC/DAC; 48/44.1kHz sampling
Audio Response: DAC: 20Hz–20kHz; ADC: 100Hz–20kHz
Supported Modes: Audio digital modes FT4, FT8, JT65, PSK31, RTTY, FreeDV, VARA, Etc
PTT Circuit: VOX-based; open GATE FET; rDS ON = 0.18 Ohms
Audio Ports: 600-ohm nominal impedance
Transceiver Connection: Screw terminals for Microphone, Speaker, Ground & PTT
USB Interface: USB 2.0 with Type-C connector
Power: 5V via USB @ 150mA (typical)
Compatibility: Windows (7, 8, 10, 11); macOS; Linux; Android
Dimensions (L x W x H): 105 x 37 x 20mm
Downloads
Instructions..USBRigLink Setup Guide
Connectivity..
About 6-Pin Data Port by Stephen WA8LMF
Kenwood K1 Jack Connection by Stephen WA8LMF
3D Printer..
USBRigLink Case STL
CatKDU
Mainly for builders & integrators..For FT-991, FT-991A, FTdx10, FTdx101D & FTdx101MP only
US$120.00 each
Combined shipping
from US$20.75 worldwide
CAT cable included
DC power cable NOT included
HTSUS Tariff Code: 8529.90.9900
Combined shipping
from US$20.75 worldwide
CAT cable included
DC power cable NOT included
HTSUS Tariff Code: 8529.90.9900
CatKDU is a mini version of the popular CatTouch.
Does everything CatTouch does in a smaller package.
Compact 3.5” IPS resistive touch screen.
Small 85mm x 54mm x 20mm footprint.
No case, just the CatKDU module for building into things.
Supplied with Stylus, CAT cable & startup guide.
Refer to CatTouch for full list of features, screens, firmware, etc.
Power connection is 2.1mm DC jack or POS (Power Over Serial) only.
Does everything CatTouch does in a smaller package.
Compact 3.5” IPS resistive touch screen.
Small 85mm x 54mm x 20mm footprint.
No case, just the CatKDU module for building into things.
Supplied with Stylus, CAT cable & startup guide.
Refer to CatTouch for full list of features, screens, firmware, etc.
Power connection is 2.1mm DC jack or POS (Power Over Serial) only.
|
CatKDU BAR screen.. |
|---|
 CatKDU MTR screen.. |
 CatKDU rear view.. |
What is included with CatKDU |
CAT Cables
RS232 CAT Cable RJ45 > DB9
Included with CatTouch & CatKnobz RS232 version
Approx 1.5m length
US$10.00 eachCombined Shipping
from US$20.75 worldwide
HTSUS Tariff Code: 8529.90.9900
TTL CAT Cable Mini DIN 8
Included with CatTouch & CatKnobz TTL version
Approx 1m length
US$10.00 eachCombined Shipping
from US$20.75 worldwide
DATA Cables
Yaesu Data Cable Mini DIN 6
Use for USBRigLink pigtail
Cut in half for 2 data pigtails
Approx 1.5m length
US$10.00 eachCombined Shipping
from US$20.75 worldwide
HTSUS Tariff Code: 8529.90.9900
Data Cable Mini DIN 6 Extension
Good source for Male & Female pigtail
Approx 50cm length
US$10.00 eachCombined Shipping
from US$20.75 worldwide
About
Turning ideas into quality radio gear..
Welcome to Catmeters.com & CatKnobz.com,
..where passion meets craftsmanship in the world of amateur radio.
This isn't a faceless corporation; it's just me, Chris ZL1CVD..
Timaru grew from an 1839 whaling station established at Patiti Point.
Present-day population is over 48,500.
My station includes Yaesu FT-100D, FT-818ND, FT-857, FT-897D, FT-710, FT-991A, FTdx10, FTdx101D, FT-1000MP MkV Field, and various handheld transceivers.
In addition to exploring different communication methods, I find joy in collecting and restoring military radio equipment.
Test equipment includes Rohde & Schwarz CRTU-RU, CMU200, HMO1002, NGMO1, NGMO2, Aeroflex 7100, IFR1900, Agilent E6621A, HP 8924, and Bird 43 with slugs & loads.
But my true devotion lies in developing innovative amateur radio products.
From CatDisplay, CatTouch, CatMeters to CatKnobz, each creation underscores my dedication to enhancing the radio experience for both novice and seasoned operators alike.
Days are a blend of designing, soldering and programming.
Beyond the technical aspects, I enjoy sharing my knowledge & assisting like-minded individuals.
Remember, my friends, the joy isn't just in picking up the phone to contact someone globally;
it's about creating that connection, sharing experiences and extending kindness.
So, as you explore my offerings, stay safe, stay well, and remember the essence of amateur radio
73 de Chris ZL1CVD.
..look beyond your bubble, embrace new experiences, constantly learn, and above all, be kind.
Shipping
⚠️ Attention U.S. Customers
Due to the removal of the US de minimis exemption,
15% tariff now applies to all purchases shipped to the United States (including territories).
This tariff is payable by you upon import.
Thank you for your understanding. 73 de Chris – ZL1CVD
All orders are shipped by NZ Post Air Mail
This is an insured & tracked service to all countries that have a postal system
Orders are shipped within 2 working days unless otherwise stated
When your order is shipped, PayPal or eBay will email you a tracking number
Make sure you check the email you registered with PayPal or eBay
It takes 10 to 25 working days for your order to arrive
You can track your order on this NZ Post website page
Often NZ Post will hand your order over to your postal service...
Australia Post (Australia)
Canada Post (Canada)
Deutsche Post (Germany)
Japan Post (Japan)
Royal Mail (United Kingdom)
USPS (United States Postal Service)
Lost parcels are extremely rare
I will only lodge an inquiry if quoted delivery time for your country has passed
Contact ZL1CVD
I'm always eager to hear from fellow amateur radio enthusiasts!
Your feedback and constructive criticism are invaluable to me as I work to improve my products and services.
I encourage you to reach out to me with any comments or suggestions you may have
Whether you've had a great experience using my products, or if there's something you think I could be doing better, I want to know
To get in touch, please look me up on QRZ.com
I look forward to hearing from you!
My AN/ARC-174 FT8 rig..
Collins AN/ARC-174 Airborne HF Radio Station
A robust HF radio system originally designed for military aviation.Renowned for its durability and performance, it was also found in civilian aircraft as the Collins 718U-5.
Fully adaptable for use as a base station, supporting voice and (when paired with USBRigLink) digital communications.
My Station Components
Control Unit: 514A-7Receiver/Exciter: 671U-4A
Mounting Tray: 990C-3
Amplifier/Coupler: 548S-3
Amplified Speaker: ABP-HEAS-1
PC Connection & PTT: USBRigLink
PowerSupply: 240V AC > 26V DC 20A SMPSU
Antenna: Carolina Windom around 6m high
Transceiver Specifications
Power Supply: Standard aircraft 26V DCCurrent Draw: Approximately 2A RX, 13A TX
Frequency Coverage: 2 MHz to 29.999 MHz
Modes: SSB (USB & LSB), AM, CW
RF Output: 100W PEP
Antenna Tuner: wide range, wire or dipole
Station PC & Software
Computer: XYC BDM5 Mini PCProcessor: Intel i9-13900H 14 cores
Memory: 32GB DDR4
Storage: 4TB M.2 NVME GEN4 SSD
Operating System: Linux Mint
Digital Modes S/W: MSHV
Logging S/W: GridTracker2
Log & QSO Comnfirmation: QRZ.COM only
Military History
Introduced in the mid-1970s, the AN/ARC-174 was widely adopted by the U.S. Navy, U.S. Army, and Royal Navy.Its versatility allowed for installations in military helicopters, fixed-wing aircraft, land-mobile and marine applications.
It became standard equipment on aircraft such as the HH-60H Rescue Hawk, SH-60B/F Seahawk, MH-53E Sea Dragon, and CH-53E Super Stallion.
With additional hardware, the AN/ARC-174 supported secure voice and low-speed data services, extending its utility beyond conventional voice communications.
Civilian Applications
The commercial counterpart, the Collins 718U-5, served extensively in civilian aviation for long-range operations.It was installed in aircraft such as the Boeing 747, DC-9 series, and various Gulfstream business jets.
The 718U-5 earned a reputation for reliability and performance with coverage from 2 MHz to 30MHz with SSB, AM, and CW modes.
Higher-power amplifier configurations (400W) were available for long-range commercial communications.
Media Gallery
My setup with USBRigLink
AN/VRC-81 M151 setup
Another setup showing 671U-1, 671V-2 (RU/20 PRC-515).All from the same Collins family.
My RF-7800H-MP FT8 rig..
Harris RF-7800H-MP Tactical HF Radio Station
A modern software defined HF manpack radio.Designed for long-range voice and high-speed data without reliance on satellite links (BLOS).
Fully operational, mostly used for base, ready for portable operation.
My Station Components
Radio: Harris RF-7800H-MP Wideband HF ManpackBattery Pack: 26V 7S4P
handcrafted 18650 LiIon pack
PC Connection & PTT: USBRigLink
Antenna: Carolina Windom around 6m high
Optional: Remote control KDU
Transceiver Specifications
Frequency Range: 1.5 to 60 MHzModes: USB, LSB, AM, FM, CW
Waveforms: STANAG 5066, MIL-STD-188-110A/B, wideband 24kbps
RF Output: 1/5/20W PEP HF; 1/5/10W VHF
Antenna Tuner: Internal. Spports wire, whip, or dipole
Weight: Approx. 5.4 kg with battery
Station PC & Software
Computer: XYC BDM5 Mini PCProcessor: Intel i9-13900H 14 cores
Memory: 32GB DDR4
Storage: 4TB M.2 NVME GEN4 SSD
Operating System: Linux Mint
Digital Modes S/W: MSHV
Logging S/W: GridTracker2
Log & QSO Confirmation: QRZ.COM only
Military History
Introduced in 2012, the RF-7800H-MP marked a major advance in tactical HF communications.Adopted by the U.S. Department of Defense and over 20 allied nations for secure beyond-line-of-sight operations.
Used in Afghanistan to link remote outposts where terrain prevented line-of-sight or satellite communications.
Deployed by forces in the Middle East during regional conflicts including the Yemen intervention and counter-ISIS operations.
Also confirmed in Ukrainian battlefield use, where resilient HF links proved critical against heavy electronic warfare and SATCOM disruption.
Global Operators
United States Department of DefenseCanadian Armed Forces
Undisclosed military forces in the Middle East, Asia, and Africa
Ukrainian Armed Forces via Western military aid
NATO, coalition, and regional forces
Media Gallery
My M3TR FT8 rig..
Rohde & Schwarz M3TR Tactical HF/VHF Radio Station
Software Defined, multiband, multimode, multirole radio for tactical communications.Fully operational, mostly used for base, ready for portable operation.
My Station Components
Radio: Rohde & Schwarz M3TRBattery Pack: 26V 7S2P
handcrafted 18650 LiIon pack
PC Connection & PTT: USBRigLink
Antenna: Carolina Windom around 6m high
Transceiver Specifications
Frequency Range: 1.5 to 59.999 MHz (HF/VHF only version)Modes: USB, LSB, AM, FM, CW, ISB
Waveforms: MIL-STD-188-141A+B, STANAG 4285, STANAG 4444, SECOM H
Data Rates: BLOS to 9.6kbps, LOS to 65kbps
RF Output: 1mW, 0.5,1,2,5,20W PEP
Antenna Tuner: Internal. Spports wire, whip, or dipole
Weight: Approx. 5.9 kg with battery
Station PC & Software
Computer: XYC BDM5 Mini PCProcessor: Intel i9-13900H 14 cores
Memory: 32GB DDR4
Storage: 4TB M.2 NVME GEN4 SSD
Operating System: Linux Mint
Digital Modes S/W: MSHV
Logging S/W: GridTracker2
Log & QSO Confirmation: QRZ.COM only
Military History
Developed in the early 2000s, the M3TR was designed to meet the complex communication needs of modern military forces.Deployed by NATO and partner nations for secure ground-to-ground and ground-to-air communications.
Offered in various form factors (manpack, vehicular, and base station).
Global Operators
German Armed Forces (Bundeswehr)NATO coalition partners
Armed forces in Asia, South America, and the Middle East
Civil defence and peacekeeping missions under UN mandates
Media Gallery
My PRC-2200 FT8 rig..
Tadiran PRC-2200 Tactical HF Radio Station
Software-defined, wideband HF transceiver originally fielded in the 1990s.Fully operational, mostly used for base, ready for portable operation.
My Station Components
Radio: Tadiran PRC-2200 (a.k.a. RT-2001(SA) )Battery Pack: 12V 12AH 4S3P
handcrafted ITR26/70-40E LiFePO pack
PC Connection & PTT: USBRigLink
Antenna: Carolina Windom around 6m high
Transceiver Specifications
Frequency Range: ~1.5 to 30MHzModes: USB, LSB, AM, CW, and Data.
Some variants include STANAG/ALE/SELCALL
RF Output: 5, 10 & 20W PEP
Data Rate: Up to 2400 baud via internal modem
Antenna Tuner: CP-2003 clips on to RX/TX unit. Spports wire, whip, or dipole
Weight: 20.8kg includes battery
Station PC & Software
Computer: XYC BDM5 Mini PCProcessor: Intel i9-13900H 14 cores
Memory: 32GB DDR4
Storage: 4TB M.2 NVME GEN4 SSD
Operating System: Linux Mint
Digital Modes S/W: MSHV
Logging S/W: GridTracker2
Log & QSO Confirmation: QRZ.COM only
Military History
Developed in the early 1990s by Tadiran (Israel), originally designated the RT-2001(SA).Served widely across NATO and European militaries
Typically deployed as a manpack, vehicular, or base station.
Global Operators
- European NATO forces (e.g., Germany)- Various South American and Asian militaries
- Civil, military, peace-keeping, and homeland defence agencies
Media Gallery
My PRC-138 FT8 rig..
Harris AN/PRC-138 Tactical HF Radio Station
A rugged manpack/vehicular HF transceiver introduced in the early 1990s.Designed for secure long-range voice and data communications.
Fully operational here for base station FT8 work, with optional portable deployment.
My Station Components
Radio: Harris AN/PRC-138 manpack transceiverBattery Pack: ABP-AC/DC/BT-TR-1 uninterruptable PSU
PC Connection & PTT: USBRigLink
Antenna: Carolina Windom around 6m high
Transceiver Specifications
Frequency Range: 1.6 to 60 MHzModes: USB, LSB, AM, CW, FM
Waveforms: MIL-STD-188-141A ALE, STANAG 4285
RF Output: 20W PEP (manpack)
Antenna Tuner: Internal ATU supports whip, wire, or dipole
Weight: ~10 kg with battery
Station PC & Software
Computer: XYC BDM5 Mini PCProcessor: Intel i9-13900H 14 cores
Memory: 32GB DDR4
Storage: 4TB M.2 NVME GEN4 SSD
Operating System: Linux Mint
Digital Modes S/W: MSHV
Logging S/W: GridTracker2
Log & QSO Confirmation: QRZ.COM only
Military History
Entering service in the early 1990s, the PRC-138 replaced older HF sets such as the PRC-104.It became a standard long-range tactical HF radio for U.S. forces during the 1990s and 2000s.
Extensively used in conflicts including the Gulf War, Balkans operations, and early campaigns in Afghanistan and Iraq.
Its ALE and data capabilities made it one of the first truly modern digital-capable HF manpacks.
Global Operators
United States military branchesNATO coalition partners throughout the 1990s–2000s
Export customers in Asia, South America, and the Middle East
Media Gallery
PRC-138 setup with USBRigLink
PRC-138 with ABP power supply & USBRigLink© Copyright 2025 - C.Day, New Zealand - all rights reserved - last updated