DPHX5102X P-25 Digital Handheld

DPHX5102X P-25 Digital Handheld2022-04-08T19:36:25+00:00

These radios have been discontinued, and are no longer available.

The DPH’s next-generation design means that functions and features are software-driven, which enables built-in versatility, flexibility, intelligence, and the potential for future enhancements along with inherent efficiencies that result in significant cost savings without compromising or sacrificing quality, performance, reliability, or durability even under the most demanding conditions.


Custom Programmable Modes

All 400 channels can be programmed for digital operation, analog operation, or both. Frequencies programmed for mixed-mode operation recognize the format of a received signal and can automatically transmit in the same format.

Cloning Technology

Effortlessly clone information from one radio to another in minutes. Cloning technology gives you the opportunity to update other DPH, EPH, GPH or KNG portables in minutes.

Password Protection

The DPH can be password protected. RELM’s unique multi-level password protected field and computer programming options allow you to easily protect your radio with a customized password.

Network Access

The DPH gives you the opportunity to choose user selectable network access codes and/or code guard for finding the best signal path without changing channels.

Quick Call/Auto Call Back

Gain instant access via unit-to-unit through RELM’s quick call and automatic call back features.

Enhanced Dot-Matrix Display

The DPH and DPH CMD have bright LCD displays with a one (DPH) or two-line (DPH CMD), 12 character alphanumeric icons.

Long Battery Life

Get a longer battery life between charges – over 18 hours with the new high-capacity lithium-ion battery.

FLASH Technology

FLASH Technology enables future enhancements via software instead of hardware changes.

Rated APCO P25

The DPH and DPH CMD meet or exceed APCO P25 specifications, including interoperability.

Rock-Solid Reliability

The DPH and DPH CMD meet or exceed tough MIL-STD and NIFC fire certification specs.

Weatherproof Design

Designed to go where you go, the DPH and DPH CMD are designed durable and weatherproof.

Nuisance Channel Delete

This feature gives you the option to delete any nuisance chatter channels that may be interrupting your communication.

Soft Switch Programming Custom Program the toggle switches to suit your everyday needs.

Programming Manual

King Radios Programming Manual


OTAR (LZA0578)

OTAR (Over-The-Air-Rekeying) is the common name for the method of changing encryption keys over the air. The use of OTAR drastically reduces the distribution of physical keying material, allowing you to update radio encryption keys wirelessly through a designated key management facility.AES/DES Encryption (LZA0577)
AES (Advanced Encryption Standard) development has been a co-operative venture between the U.S. government and the private industry sector resulting in a universal encryption system. AES and DES (Digital Encryption Standard) allows you to communicate with other radios that have the specific key programmed. RELM’s AES/DES Encryption is NIST certified, validated FIPS 140-2 Type III encryption with a 256 keyload.Intrinsically Safe (LZA0558)
This option guards against the possibility of an electrical spark causing a fire or explosion, and is designed for use in hazardous environments. The IS (Intrinsically Safe) certification for the DPH portable covers Class 1 (petroleum/gas environments); Division 1 (flammable material present continuously); Group D (hazardous locations); and Group T3C (temperature rating).


  • 136-174 MHz VHF
  • Channels    400
  • Selectable Code Guards    Up to 400 (16 per group)
  • Selectable Network Access Code    Up to 400 (16 per group)
  • Operating Voltage    10 V Nom.
  • Operating Temperature    -30° to 60°C
  • Current Drain: Standby  Receive Transmit    20 mA
  • 255 mA
  • Stability    +/-2.5 PPM
  • Channel Increments    5.0/6.26/7.5 kHz
  • Operating Frequency Spread Channel    136-174 MHz
  • Spacing    25/30 and 12.5/15 KHz
  • Size (W x D x H) (std battery)    2.55 x 1.5 x 6.6 in
  • Weight    20 oz. (std battery)
  • Antenna    Helical Would, Molded Rubber Flex
  • FCC Type Acceptance    K95DPHX51 Parts 22, 74, 90


  • RP Power Output    5/2 Watts
  • Modulation    16K0F3E/11K0F3E/
  • 8K10F1D/8K10F1E
  • Spurious and Harmonics    60 dB
  • Hum and Noise (per TIA)    50 dB
  • Audio Distortion    3%
  • Audio Response (per EIA)    +1/-3 dB


  • Sensitivity    -119 dBm
  • Selectivity    72 dB (wide), 60 dB (narrow)
  • Spurious Including Image    75 dB
  • Intermodulation    70dB
  • Max. Audio Output (5% dist.)    500 mW
  • Audio Response (per EIA)    +1/-3 dB

Programming Manual

King Radios Programming Manual

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