Ham Radio Blog PD0AC

Thoughts of a Dutch radio amateur

Chinese digital radios – they’re here.

Mobile versions, portable versions, take your pick. When looking at the LCD, the 409Shop teaser Brick posted about might be technically identical to this one. The Kirisun S760/FP460 is yours for $195.

Kirisun

1.4” Graphic Dot-matrix True Color Display

Large and full color display with a flexible menu-driven interface enables access to desired function easily.

High Spectrum Efficiency

Create two offset 6.25kHz channels in a 12.5kHz spacing which enhances spectral efficiency and helps you to save money about purchasing the frequency.

Superior Voice and Audio

With digital error-correction technology and 1W speaker, FP460 ensures superior voice even in noise environment or at the edge of coverage area.

Dual Modes of Analog & Digital

By changing the channel setting, FP460 can be used in analog or digital mode. Being analog/digital compatible, FP460 allows any businessman or private user to enjoy digital quality as well as being relieved from congested spectrum.

Versatile Voice Calls

FP460 provides various voice call types, including Private Call, Group Call, All Call and Emergency Call. And all the call types except Emergency can be operated by menu or by keypad.

Safe Communication

It utilizes 128-bit encryption technology in digital mode which ensures the privacy of the communication.

Supplementary Services

Besides voice call service, FP460 provides supplementary services of Radio Check, Radio Enable, Radio Disable, Whisper and so on.

Text Message

FP460 provides private and group text message, which can be used when discretion is required. Customized and pre-programmed messages are also available.

Upgradable Software

With this function, you can enjoy further features without buying a new machine.

Specifications

General

Frequency Range 400-470MHz

Channel Capacity

256
Channel Spacing 12.5KHz
Operating Temperature -25°c~ +55°c
Operating Voltage 7.5V DC ±20%
Battery 1500mAH Li-ion
Frequency Stability ±2.5 ppm
Dimension (with battery and antenna) 116mm x54mmx30mm
Weight (with battery and antenna) 243g

Transmitter

RF Power Output 4W/ 1W
Frequency Modulation 16KφF3E/11KφF3E (Analog)

4FSK(Digital)

Antenna Impedance 50Ω
Modulation Limiting ±2.5kHz
Radiated Spurious Emission -36dBm < 1GHz
-30dBm > 1GHz
FM Noise 45dB 25KHz
40dB 12.5KHz
Modulation Distortion < 3%

Receiver

Reference Sensitivity 0.25μV 12.5KHz
Adjacent Channel Selectivity 60dB 2.5KHz
Intermodulation 60 dB
Spurious Response Rejection 60 dB
Rated Audio Output 1W
S/N 45/40
Rated Audio Distortion ≤3%
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March 13, 2013 - Posted by | Amateur Radio, HAM Gear, HAM Radio

10 Comments »

  1. 200 USD for a digital pmr is realy nice. Sounds good…

    Comment by Wolfgang | March 13, 2013 | Reply

  2. Wonder what protocol standard – if any – it is using.

    Comment by zl1klp | March 13, 2013 | Reply

    • Probably FDMA.

      Comment by Hans | March 13, 2013 | Reply

      • 4FSK is the mode used by DMR Tier II, like MotoTRBO (TDMA) or NXDN (FDMA)

        Comment by Hi there | March 14, 2013

  3. so it would work on mototrbo?

    Comment by stephencharlton | April 5, 2013 | Reply

    • We don’t know yet.

      Comment by Hans | April 5, 2013 | Reply

      • ok thanks

        Comment by stephencharlton | April 5, 2013

  4. These radios are 4FSK (tier 1 – like dPMR (446mhz) digital) and NOT compatible with TDMA Mototrbo or any of the others e.g. kenwood Nexus, Icom Dstar or IDAS. I have researched these radios fully and they are not really much use for amatuer radio, may be of use to security or business. I have confirmed this with Kirisun.

    Comment by Andy | April 22, 2013 | Reply

    • Dstar is TDMA?

      anyway no word about audio codecs on those radios. Is it something old and crappy like LPC? something stolen/reversed like AMBE (plenty of source code for AMBE on chinese Shanzai sharing websites)? or something invented in house by chinese (lol)?

      Comment by rasz_pl | April 24, 2013 | Reply

      • umm correction
        MELP not AMBE, plenty of MELP source code

        Comment by rasz_pl | April 24, 2013


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