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Product Details


2pcs/lot Embedded long range 7Km – 10Km high power 4W output UHF talkie walkie modules kit SA858
SA858 is a professional 4W / UHF band walkie talkie module. Strong RF circuit, DSP, digitalinterface, and audio amplifier is built in. Besides Uart command, user can use our provided PCsoftware to configure all the parameters. The parameters includes: Tx frequency, Rx-frequency, TxCTCSS /CDCSS, Rx CTCSS/CDCSS , digital volume and SQ. To avoid the heating for this highpower walkie talkie, we have done special handling on the software with a strong heat sink added,which makes it has no problem for long time continuous working.When SA858 is connected with SA858-PJ, it is easy to organize a professional all in one walkietalkie system, the system include 16 predefined frequency channels, adjustable volume, configurableCTCSS/CDCSS. User need only to connect with power supply and speaker.Simplified interface and ultra small size make SA858 widely used in various applications andconveniently embedded into various handheld devices.
Product Picture:

Features:
  • Full band 400~480 MHz
  • Tx and Rx frequency can be set alone
  • Band width 12.5/25KHz
  • Output power up to 4W
  • Distance up to 7 to 10 km in Open area
  • High sensitivity: -124dBm
  • High integrated and small size
  • 38 CTCSS
  • 166 CDCSS
  • (can be set by PC software and serial port)
  • 8 adjustable digital volume
  • Analog volume adjustable limitless
  • High / low output power selection (1W-4W)
  • Wide range of working voltage 3.3-9V
  • Embedded EEPROM, data saved even power off
  • 1ppm TCXO, stable performance
Application:
  • Small professional walkie talkie
  • Invisible intercom system
  • Building community security system
  • Sport products
  • Handheld / Pocketable device
  • Audio surveillance system

Specification:

Parameter Test condition Min. Typ Max. Unit
Operating voltage range 3.3 8 9 V
Operating temperature range -30 20 70 C
Power consumption
Sleeping Current ≤3 uA
RX current 60 mA
TX current (high output power) @ 8v, 424.75MHz 1400 1500 mA
TX current (low output power) 850 900 mA
TX current (high output power) @ 4V, 424.75MHz 1100 1150 mA
TX current (low output power) 650 700 mA
TX frequency parameter
Operating frequency range 400 450 480 MHz
TX current (high output power) @ VCC=4.0V 30 31 32 dBm
TX current (low output power) 26 27 28 dBm
TX current (high output power) @ VCC=8.0V 35 36 36.5 dBm
TX current (low output power) 30.5 31.5 32 dBm
Modulation frequency @ 1.5Khz/2.5KHZ frequency deviation 10 mV
Audio modulation distortion @ 1.5Khz/2.5KHZ Frequency deviation 2 5 %
Signal to Noise Ratio @ 1.5Khz/2.5KHZ frequency deviation 38 40 45 dBm
Adjacent Channel Ratio @ 12.5K offset -60dBc dBm
CTCSS Modulation frequency 0.35 0.5 0.75 KHz
RX frequency parameter
RX sensitivity 13dB output audio SNR -124 dBm
RX SNR @ 1.5 KHZ Frequency deviation 45 50 dB
Audio output power 2 W
Audio output impedance 8 OHm
Block diagram:

Application circuit:

Parameter setting:

Accessories:

1)Antenna:

Antenna is an important part in communication system. Its performance will influence the whole communication system. This module requires antennas impedance in 50oHm.

2)Accessory board:

To make it convenient to use, we have an accessory board SA858-PJ which can be used with SA858 walkie talkie module,the small board extend the pins of the module by the special FPC.

3)Heat sink:

This walkie talkie module is a high power wireless device,it will has bigger current during transmitting,so we have equipped module with a specialized heat sink.

Pin out definition:

Pin No. Pin name Description
1 MIC+ Connect positive of external microphone
2 GND Connect negative of external microphone or power ground
3 SPK/VOL Eternal connect 8 oHm and 2W speaker and volume adjust electronic equipment
4 SPK Audio output pin, external connect 8oHm and 2W speaker
5 H/L RF high and lower power pin,connect0 is lower power,off is high power
6 VOL Audio volume adjust pin,external connect 200K adjustable electronic equipment
7 GND External connect negative power
8 RXD Data receive serial port
9 TXD Data send serial port
10 VOXEN Volume enable pin,0 is open volume control function,1is close,default is1
11 PTT Send/receive control pin,0is send;1 is receive,default is receive
12 8 Frequency 16 channels, 8421code,No.8 bits,default is1output
13 4 Frequency 16 channels, 8421code,No.4 bits,default is1output
14 2 Frequency 16 channels, 8421code,No.2 bits,default is1output
15 1 Frequency 16 channels, 8421code,No.1 bit,default is1output
16 PD Module sleep enable,0 is sleep mode;1normal working,default is normal working mode
17 VCC Connect positive power
18 GND Connect negative power
19, 21 GND Connect antenna ground
20 ANT RF signal output,external connect 50oHm antenna
Mechanical dimension:

  • 2pcs * UHF walkie talkie modules with heat sink SA858
  • 2pcs * Heat Sinks
  • 2pcs * Accessory boards
  • 2pcs * 409MHz rod antennas
  • 2pcs * Speakers
  • 2pcs * Connecting wires
  • 1pc * USB bridge board

Item Specifics
Talk Range:
>=5km
Is_Display:
No
Type:
Parts
Storage Channel:
38 CTCSS ,166 CDCSS
Frequency Range:
UHF
Brand Name:
G-NiceRF
Dimensions:
58.87*20.74*4.2mm
Walkie Talkie Type:
Portable
Maximum Range:
5km-10km
Model Number:
Talkie Walkie module SA858
Output power:
1~4W
Range:
7~10Km
High sensitivity:
-124dBm
CTCSS:
38
CDCSS:
166
TCXO:
1ppm
Band width:
12.5/25KHz
Adjustable digital volume:
8
Heat sink:
optional
Shipping & Payment

SHIPPING & DELIVERY

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

REFUNDS & RETURNS POLICY

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of jonaki (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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2pcs/lot Embedded long range 7Km – 10Km high power 4W output UHF talkie walkie module kit SA858

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