Radio-less Full-Duplex Nodes & USB Interfaces

The UCI120 USB Communications Interface provides Hi-Fi audio quality, smooth dynamics, and an overall sound equal to or better than even the best radio nodes. These do not include a mic or speaker. I recommend a genuine Alinco EMS-57 DTMF mic which are in stock and ready to ship. For speakers I recommend any 3-8Ω speaker made by a reputable ham or commercial radio manufacturer such as Icom, Kenwood, Yaesu, Motorola, etc. Notes:

• Speaker output power is rated at ~2.5W into 4Ω and ~1.5W into 8Ω. For mobile use or where maximum volume is needed I recommend using a 3-4Ω speaker or 2× 8Ω speakers connected in parallel
• A bridge configuration audio amp is used, therefore the speaker '–' line (3.5mm jack sleeve) should not be grounded
• Headphones can be used with the Speaker Out jack but may require a 3.5mm TS (mono) to TRS (stereo) adapter, or the Line Out jack can drive 32Ω headphones with L&R audio but is not affected by the Vol control

The UCI120 provides a 0/10/20dB mic gain switch and a knob enabling gain reduction/fine tuning, and provides enhanced filtering of the 5V mic power line with a 10Ω—1mF RC filter to ensure the lowest possible noise with any type of mic.

Recommended Microphones

• Alinco EMS-57, Kenwood MC-48B, MC-60A, MC-80, MC-85. These mics will all work from the mic jack 5V line - no batteries needed
• Non-preamplified dynamic mics, eg. Sennheiser E835, E935, Shure SM58, Beta58, Electro-Voice RE320 (use PTT Mic Base such as an Inrad DMS-1 with Kenwood cable). Preamplified condenser mics: Rode NT3
• AllScan MA1 Adapter Required: Icom HM-152T. HM-154T, Kenwood KMC-18, Motorola HMN10xx & TDN83xx series, Icom SM-10. These are highly recommended, with excellent audio and build quality
• The following are NOT recommended: Amazon/ebay/Chinese counterfeit/knockoff mics, MFJ-299, Kenwood MC-43, other cheap hand mics, Bluetooth mics, keypad mics that output serial data rather than DTMF audio (eg. Kenwood MC-59, MC-62), Icom HM-148T
• Any mic with an internal preamp that will work on 5V should work well if wired to an 8-pin round plug (Kenwood/Alinco pinout). Astatic D-104 preamp can be wired to run from mic jack 5V line instead of 9V battery
• Many Speaker-Mics and Headsets can also be supported, and an OHIS accessory board is available, contact me for details

AllScan UCI120 USB Communications Interface

Ready to plug in to any computer running ASL, DVSwitch, HamVOIP, EchoLink or other PTT communications applications. Product Page / Brochure

UCI120 - $99

Use with your own Mini PC, RPi, or other computer.
Enclosure dimensions: 3.5"W x 4"D x 1.5"H (88x100x38mm). Includes 6" USB-A to C cable

UCI120-PCB - $79

UCI120 PC board without enclosure or USB cable, with volume control and mic jack included but not soldered on. Perfect for use in an enclosure such as a comms speaker or phone patch

USPS Shipping - $8

For those outside of the Americas also check G1LRO.uk

Fully Configured & Tested AllStar Node

Configured with your node# and details, running ASL3 with AllScan and Allmon3 installed. Includes a refurbished Dell 3040 MiniPC (no WiFi) and AC Adapter

ANR100 - $249

Beelink T5 MiniPC upgrade (ANR100-BT5) - Add $50

New ultra-compact Mini PC w/4GB RAM, 64GB eMMC, WiFi, supports 12V operation

USPS Shipping - $10

Fully Configured & Tested Laptop Node

Configured with your node# and details, running ASL3 with AllScan and Allmon3 installed. Works like any MiniPC/RPi when the lid is closed, or open the lid and you have a full-featured PC. supports dual-boot and includes Windows 10 or 11 (can be chosen during bootup instead of Debian+ASL).

ANR100-LT - $399

Includes a UCI120, Dell E7440 Laptop running Debian Linux, ASL3, KDE Desktop,
WiFi, ethernet, full keyboard, trackpad, ~14" LCD, battery and AC adapter

USPS Shipping - $20

Audio Interface Module Kit

Includes all needed parts, USB cable and enclosure. (No mic, speaker, or wire.) NOTE: Requires experience with surface mount electronics and soldering very small parts.

ANR100-K - $49

Use with your own Mini PC or RPi. Also includes Mic Gain Control option parts

ANR100-Mini-K - $45

Includes smaller enclosure (3" x 3.75" x 1.2" vs. 4.1" x 4.3" x 1.4").
Slightly harder to assemble due to limited interior space

USPS Shipping - $5

USB Radio Interfaces

AllScan URIs provide unmatched audio quality, RFI-rejection and cost-effectiveness. Comprehensive LEDs show USB host Status, COS, ADC Clip, and PTT state. Extensive I/Os fully support both HTs and mobile radios, half or full duplex. HTs connect with standard K1 2.5mm & 3.5mm TRS cables, the URI110 and URI201 include a Mini-DIN-6 jack, and the URI201 provides a DB9 jack. Onboard trim pots support everything from mic to speaker levels and low or high impedance audio inputs and outputs. AllScan URI Configuration Settings

Perfect for use with AllScan node designs or with nearly any type of radio(s). AllScan URIs provide the most comprehensive RFI/EMI filtering available, with separate USB/Digital/Analog ground planes and power lines, ferrite beads and bypass caps on all radio I/Os, optocouplers on PTT & COS lines, and RC filters on the Analog supply. The URI150 and URI201 add audio isolation transformers for maximum RFI-rejection, and switch-configuration options supporting various signal and grounding configurations. The URI101/110 PCB measures only ~2"x2" - not much larger than a CM108 sound fob but with far superior RFI performance and with all I/O lines available on through-hole header pads.

AllScan URIs support AllStar, EchoLink, other PTT communications applications and interfacing of Win/Mac/Linux PCs and Smartphones to HTs, portable and mobile radios for use with remote rig control, digital modes, packet radio, etc.

With proper cabling and ferrite placement AllScan URIs typically provide 60dB Signal-To-Noise (SNR), but SNR can be significantly reduced in HT nodes if the HT is powered from the same power supply as the MiniPC/RPi. This is solved in the URI150 with full galvanic isolation including audio isolation transformers, and in the URI141 with a 0.25Ω–2.5mF RC filter on the Radio Power supply.

PCB-Only Option (subtract $20) - All URIs are available as an assembled PC Board only with no enclosure or cables, LEDs included but not soldered to board. Mounting in a shielded enclosure recommended.

No Cables or Ferrites Option (subtract $10) - All URIs (except PCB-Only option) are provided by default with all needed cables and ferrite filters as listed below. The specific cables and ferrites have been optimized for each URI model and this is a significant number of additional parts, but for those who already have these items this option can save a few $. NOTE: RFI issues can be more likely to occur if not using the same or similar cables and ferrite filters.

URI101 USB Radio Interface

The highest-performance, lowest-cost URI available for HT nodes. Supports automatic COS+CTCSS detection from HT speaker audio amp bias voltage, enabling high quality nodes to be built with inexpensive off-the-shelf components and no soldering or modifications. 1KΩ input impedance
Demo Video / Schematic / Brochure / What's in the Box

URI101 - $49

Includes 2.3" x 2" x 1" (58x50x25mm) Extruded Aluminum Enclosure,
3× 1' cables (USB-A to C, 2.5mm TRS, 3.5mm TRS) with ferrite filters

USPS Shipping - $6

URI110 USB Radio Interface

There is no higher-performance, lower-cost URI for use with mobile radios. Also works with HTs that can provide hardware COS on the 2.5mm Jack Ring ie. TIDRadio TD-H3 HTs with nicFW. Internal DIP switches select 9600 (default) or 1200 Mini-DIN-6 Rx audio input. 5KΩ input impedance
Schematic / Brochure / What's in the Box

URI110 - $59

Includes 2.3" x 2" x 1" (58x50x25mm) Extruded Aluminum Enclosure,
2× 1' cables (USB-A to C, Mini-DIN-6) w/ferrites

USPS Shipping - $6

URI141 USB Radio Interface

Designed for HT nodes, provides 5V 1A output to power HT(s), supports automatic COS+CTCSS detection from HT speaker audio amp bias voltage. Note: Some lower-spec RPi's/MiniPCs may not be able to provide sufficient current for High Tx power. Use of a MiniPC such as a Dell Wyse 3040 or Beelink T5 is recommended for best performance. 1KΩ input impedance. Schematic

URI141 - $79

Includes 2.9" x 3.2" x 1.1" (74x80x29mm) Extruded Aluminum Enclosure,
and 1 ea. 1' USB A to C cable, 2.5mm TRS & 3.5mm TRS cables,
and 5.5x2.1mm DC Power cord, with ferrite filters

USPS Shipping - $8

URI150 USB Radio Interface

Designed for Full-Duplex nodes using 2 HTs, provides adjustable 5-9VDC 1A (2A peak) output to power HTs, with 9-15V 5.5x2.1mm DC Power In & Thru jacks, and high-efficiency switching-regulator with short-circuit and over-temperature protection. Supports automatic COS+CTCSS detection from HT speaker audio amp bias voltage. 600Ω input impedance
Schematic / Brochure / Connection Diagram / What's in the Box

URI150 v1.2 - $99

Includes 2.9" x 3.2" x 1.1" (74x80x29mm) Extruded Aluminum Enclosure,
and 1 ea. 1' USB A to C cable, 2.5mm TRS & 3.5mm TRS cables,
5.5x2.1mm DC Power cord and thru cable, with ferrite filters

USPS Shipping - $8

URI201 USB Radio Interface

Industrial-grade URI for high RFI environments, with switch-configuration options supporting a wide variety of signal and grounding configurations. Switch-selectable 600/3K/5K/10K Ω input impedance
Schematic / Brochure / What's in the Box

URI201 - $89

Includes 2.9" x 3.2" x 1.1" (74x80x29mm) Extruded Aluminum Enclosure,
1' USB A to C cable, 1 Mini-DIN-6 cable, DB9 plug with solder terminals
and housing, and ferrite filters for all cables

USPS Shipping - $8

AllStar Node Radio Modules

Fully assembled & tested node modules with all needed cables and ferrites, plugs into a Mini PC or RPi 3/4/5 you provide running ASL, HamVOIP, EchoLink or other PTT communications apps. 100% plug & play module with simple front panel configurability. Compared to SHARI/PiHat/SA818 nodes these are easier to set up and have far higher audio quality and RF performance. There is no simpler or more cost-effective way to build a high-quality node. Off/Auto/On power switch supports powering the HT on/off automatically based on the USB host active status. Easily attaches to a MiniPC/RPi with Velcro or acrylic mounting tape. Recommended ASL Configuration Settings

URI141-RT85 Simplex Node Radio Module

100% USB-powered with no separate adapters, chargers or batteries required. Plugs into any MiniPC or RPi 3/4/5 with a single USB cable. Additional Pictures

URI141-RT85 - $99

USPS Shipping - $9

URI150-RT85 Node Radio Module

5.5x2.1mm DC power jacks take any 9-16VDC input, pass it thru to your PC/RPi and step it down to power HT(s), with no separate adapters, batteries or chargers required. Can be easily expanded to support cross-band full-duplex by adding a 2nd RT85

URI150-RT85 - $129

USPS Shipping - $9

AllStar Nodes

TurnKey fully assembled & tested nodes providing outstanding audio quality (typically 55-60 dB SNR) & RFI rejection, configured with your node# and details and running the latest ASL with AllScan and Allmon3 installed.

Beelink T5 MiniPC Upgrade (add $50) - New Beelink T5 (4GB RAM, 64GB eMMC, WiFi, 12V operation) instead of the default refurbished Dell Wyse 3040 (2GB RAM, 8GB eMMC, No WiFi).

AllScan ANF101 Full-Duplex AllStar Node

Includes Dell Wyse 3040 MiniPC, AllScan URI141 URI, and 2 Retevis RT85 HTs
Demo Video V2 / Demo Video V1

ANF101-V2 - $359

USPS Shipping - $15

AllScan ANF200 Full-Duplex Mobile-Radio Node

ASL configured in usbradio DSP mode using unfiltered ("9600") audio I/Os. Includes MiniPC, AllScan URI110 URI, mobile radio and all original radio accessories. Demo Video

ANF200 - Email for quote

Can be built with any cross-band full-duplex radio such as a Kenwood TM-V71A, Yaesu FT-8800R or FT-8900R. Pricing is generally $250 plus the cost of the radio depending on the specific options needed.

USPS Shipping - $20

AllScan ANH100 Half-Duplex AllStar Node

Includes Dell Wyse 3040 MiniPC, AllScan URI141 URI and 1 Retevis RT85 HT.
Demo Video

ANH100 - $229

USPS Shipping - $10

Node Components & Accessories

Genuine Alinco EMS-57 DTMF Hand Mic

The most popular DTMF hand mic on the market due to its clear audio, excellent build quality, and heavy-duty long coiled cord

Alinco EMS-57 - $67

USPS Shipping - $6

AllScan MA1 Microphone Adapter

Enables a wide variety of mics to be used with the UCI120 or various radios or other interfaces. Internal DC-DC converter supports any mic supply voltage from 5-14V. Demo Video w/Icom HM-154T, Motorola HMN-1037B, and Kenwood KMC-18 DTMF mics. Schematic

MA1 - $39

Enclosure dimensions: 1"W x 1"W x 3.2"D (25x25x80mm). No cables or configuration included

RJ45 to 8-pin Round Mic Cable - $19

Heavy duty replacement cable for Yaesu MH-31B8 mics. ~2' coiled cord. Wiring to UCI120/Alinco: RJ45 pin 2=Mic 3=PTT 4=MicGnd 5=Gnd 7=5V. Price includes configuration of MA1 output headers

Input/Output Configuration - $10 ea.

I can preconfigure the input and/or output headers and DC-DC converter for the specific model/pinout of the mic you plan to use and radio or interface you plan to go into. For mics not listed in above schematic you would need to provide the pinout and specifications.

USPS Shipping - $6

ANF101 Mounting Plate

Sturdy copper-clad fiberglass perfect for mounting a MiniPC/RPi, URI141/150 and Retevis RT85 or similar HTs. Predrilled mounting and cable management holes make it very easy to build a complete ANF101. Large ground plane makes RFI issues a thing of the past

ANF101-MP - $15

4.5" x 10" x 0.063" black color with rounded corners, integrated HT power wiring, and solid copper ground planes. Includes hardware for mounting URI (4x M3 screws, nuts, washers & star washers), and feet (2x #6x2" bolts, washers & nuts)

USPS Shipping - $6

AllScan SP01 Communications Speaker - 8Ω 5 Watt

The SP01 has the same enclosure dimensions as the UCI120, making for a compact and attractive speaker option for ANR100 and other radio-less nodes. With its small size it is not very loud and does not sound as good as some other speaker options (such as the Icom SP-35 or various other mobile speakers), but it has a smooth, full sound and is not fatiguing to listen to for long periods of time

SP01 - $39

Enclosure dimensions: 3.5"W x 4"D x 1.5"H (88x100x38mm). Includes 1/8" TS speaker cable

USPS Shipping - $8

Refurbished Dell Wyse 3040 MiniPC

Fully tested thin-client Mini PCs with RTC battery replaced if measured < 3V, BIOS settings optimized for Debian Linux, and eMMC drive wiped ensuring it is 100% functional and speeding up OS install. User Manual & Specifications

Dell Wyse 3040 - $35

WiFi module not included but any Linux-compatible USB WiFi adapter can be used.
Includes AC Adapter

12V Option (3040-12V) - Add $15

Most newer 3040's are rated 12V 2A and run great on 5-15VDC

WiFi Option (3040-W) - Add $25

Dell OEM internal WiFi module and antennas

16GB eMMC Option (3040-16G) - Add $20

Most 3040's have 8GB eMMC which is more than enough space for ASL,
but to also install a Linux Desktop GUI 16GB is recommended

DC PowerPole to 4.0x1.7mm cable (3040-DC) - Add $20

For 12V 3040s

USB Power Option for 3040's (3040-USB-DC) - Add $10

USB-A to 4.0x1.7mm cable, powers a 3040 from a USB power pack / charging port

Install Debian 12 (3040-Deb) - Add $30

Debian 12 installed and updated. At that point it's easy to install and configure ASL3, AllScan and Allmon3 with simple SSH commands

Set Up ASL3, AllScan and Allmon3 (3040-ASL) - Add $35

If you'd rather not set up these packages yourself let me know your node# and configuration details and I can set up and test everything. (Requires 3040-Deb Option)

USPS Shipping - $7

BH7NOR R1 URI

High quality AllStar USB Radio Interface with excellent RFI rejection and extruded aluminum case. Modified to support Full-Duplex and ASL txmix level setting.

Note: R1-ASL supports AllStar and has an extra Status LED; R1-2023 provides a USB serial port interface used by PC apps such as Zello, EchoLink and digital mode programs.

R1-ASL - $65

For HT nodes or radios with speaker level outputs. ~100Ω audio input impedance. Includes USB and Mini-DIN-6 cables

R1-ASL-10K - $75

For mobile radios that have a Mini-DIN-6 jack and ~10KΩ Rx Audio line impedance. Includes USB and Mini-DIN-6 cables. Supports "9600" or "1200" audio input lines (specify when ordering)

USPS Shipping - $6

Custom Builds, Engineering Services

I can do custom builds with various enclosures and any other options needed. I've built nodes using a variety of communications speakers and phone patch enclosures, and include an A/B switch and external speaker level input jack so that original speaker functionality remains intact supporting use with any radio. I can also set up cloud VM nodes, repeaters, links, and custom hardware and software. Email me for details