Radio Research, Inc.

Maxon SPARTAN portable radios TSD-4124 (VHF) & TSD-4424 (UHF) are the best radio for any day-to-day application with a powerful 5W performance in an attractive, compact size. Its ability to work on both Digital and Analog systems make this feature-rich radio perfect for schools, hotels, restaurants, security companies, custodial services. In addition to conventional communications services, the TSD-4000 with display and keypad features rich data services such as individual or group calling, text messaging, voice record, radio enable/disable, remote monitor, lone worker and more. While the Maxon TSD-4000 is great alone, it can be paired with optional accessories to provide the exact fit you need for use. Click on the accessories tab for more details. The radio comes complete with antenna, battery, charger, belt clip, and user manual.

Models Available:
TSD-4124 VHF (136-174 MHz)
TSD-4424 UHF (410-470 MHz)

• TSD-4124 VHF 136-174 MHz TSD-4424 UHF 410-470 MHz
• Channel Capacity 512 Ch.
• Digital DMR Tier II TDMA
• Channel Spacing 25/20/12.5 kHz (Analog) 12.5 kHz (Digital)
• 2 Time Slots of 6.25 Each
• Operating Voltage 7.4VDC
• Battery Capacity 2600 mAh Li-Ion
• Frequency Stability ± 1.0 PPM (-30° to +60° C)
• Antenna Impediance 50 Ω
• Dimensions (H/W/D) 4.6x2.16x1.33”(118x55x34 mm)
• Weight (w/ Battery) 9.0 oz. (234 g.)
• Case/Frame Polycarbonate/Aluminum Die Cast
• Battery Life (Hours) Analog: 17 Hours, Digital: 23 Hours 90/5/5 duty cycle
• RF Output Power 5/1 Watts
• FM Modulation 11K0F3E (12.5 kHz), 14K0F3E (20 kHz), 16K0F3E (25 kHz) 4FSK
• Digital Modulation 12.5 kHz Data Only: 7K60FXD, 12.5 kHz Data & Voice: 7K60FXW
• Conducted/Radiated Emission -36dBm<1GHz, -30dBm>1GHz
• Modulation Limiting ±2.5 kHz (12.5 kHz), ±4.0 kHz (20 kHz), ±5.0 kHz (25 kHz)
• FM Noise 40dB (12.5 kHz)
• Adjacent Channel Power 60dB (12.5 kHz), 70dB (20/25 kHz)
• Audio Distortion 3% maximum with 1kHz modulation
• Digital Vocoder Type AMBE3000
• Vocoder Chip with AMBE+2
• Sensitivity (Analog) 0.25µV @ 12dB SINAD
• Sensitivity (Digital) 0.22µ V/BER 5%
• Selectivity TIA-603 ETSI >65dB (12.5 kHz), 70dB (20/25 kHz)
• Audio Output Power 1.0 Watt Audio
• Distortion < 3% at rated output
• Audio Response +1,~ -3dB From 6dB per octive
• de-emphasis characteristics
• Spurious Emission 70dB

Package includes: Radio, 2600 mAh Li-Ion battery, rapid rate desktop charger, antenna, belt clip and user manual.

Additional accessories available and sold separately:

TSA-4260 – 2600 mAh Li-Ion Battery
TSA-041 – VHF (136-174 MHz) 6″ Antenna, Female SMA
TSA-044 – UHF (400-470 MHz) 5 1/4″ Antenna, Female SMA
TJA-341 – VHF (148-174 MHz) 3 1/4″ Antenna, Male SMA
TJA-342 – UHF (450-470 MHz) 2 1/8″ “Stubby” Antenna, Male
SMATSA-0400 – Dual Slot Rapid Rate Desktop Charger
3-007-051-10 – Connector w/screws to link TSA-0400 Chargers
TSA-6110TS4 – 6 Unit Gang Charger w/Dual Slot
TA-836X – Standard Speaker Microphone
TA-850X – Heavy Duty Speaker Microphone
TA-855X – Heavy Duty Speaker Microphone w/Hi/Lo Volume Control
TA-817X – “D” Style Over the Ear Speaker w/lapel mic/PTT
TA-818X – Discreet (clear audio cord) Ear Speaker w/lapel mic/PTT
TA-819X – “C” Style Earhook Speaker w/lapel mic/PTT
TA-820X – Behind the Head Frame w/boom mic in-line/PTT
TA-890X – Dual Muff Headset & Cord (2 Pin)
TA-80LC – Leather Carrying Case w/Belt Loop/Swivel
TA-80NC – Nylon Carrying Case
TSA-40BC – Spring Loaded Belt Clip
ACC-440/N – Programming Software
ACC-3320E – Programming Cable (USB)