Crowd-funding Continue

(Some participants quit and we reopened crowdfunding)

Shipping at April 30 to May 31


KC908 is a wide-band receiver/spectrum analyzer, it can measurement radio frequence spectrum and field strength, also it can demodulation and monitoring common signal. KC908 can record the raw IQ signal and save for later analysis.


KC908 is based on SDR theory. Different with other SDR receivers, KC908 integrated complete signal processing and user interface, it is no need to connect a computer. KC908 support SDR software like HDSDR and be able to connect with GNURadio.


KC908 can use to a Reconnaissance receiver. Different with sweep spectrum analyzer, KC908 using FFT to get spectrum result. Sweep 3GHz range in 1 second.


KC908 have 2 receive channels. It can measure the Amplitude difference and phase difference in two channels. It has signal generator function to output the CW and simple modulated signal.



Basic function

1 spectrum analysis

2 All mode analog demodulation

3 Field strength measurement

4 simple signal generator


Utility function

1 better than 25KHz frequence measurement accuracy in any sweep span, once measurement can get the accurate frequence.

2 comfortable monitoring with multiple squelch mode

3 automatic statistics strong signal

4 up to 999 channels can be save

5 waterfall figure display

6 record IQ and audio to TF card

7 level tone function

8 high volume audio output


Features that may be developed in the future

Hardware support, software develop needed

1 vector network analysis ( external coupler needed)

2 digital demodulation

3 vector signal generator



KC908 can use as traditional spectrum analyzer, for digital, pulse or unstable signals(like magnetron output) will be better.


1 professional communication

2 IoT project

3 interference search

4 concealed signal source search

5 electromagnetic radiation measurement

6 radar and satellite station

7 radio reconnaissance and monitoring

8 spectrum resource occupancy analysis

9 industrial microwave



Main Performance(note 1,2)

Object Min value Typical value Max value Note
Frequency range 5kHz 15GHz
Real time band width 1kHz 15MHz
Analysis band width 1Hz 2MHz
Demodulation band width 150Hz 300KHz
100% POI(note 3) 210us SPAN=15MHz frequency measure batter than 25KHZ
Level measurement range +20dBm
Level measurement uncertainty 1.5dB
Noise floor -130dBm -120dBm @12KHz BW
Instrument noise figure 13dB AMP On




REF= 20dBm

Image rejection 60dB <=6GHz
Residual response(note 4)



Port N.C

With whip antenna

Spurious response -60dBc
Battery life 4h
Charge time 3h
Weight 900g


Note1 This table just show the parameters that user are concerned about, for detail please see the technical parameter table on the user manual.

Note2 Performance a measured by right port and not connected unless otherwise stated. Left port maybe different.

Note3 We define the intercept in POI as accurate measurement

Note4 KC908 will transmit EMI during the measurement. If the antenna close to KC908 it will receive the EMI. This parameter is measured by a 0.2m whip antenna, 1m from the KC908 in the microwave anechoic chamber.

Difference with KC901

KC908 is a real-time spectrum analyzer, KC901 is a network analyzer

KC908 is design for measurement the radio signal in open field. KC901 is use for measurement the RF component like antenna and filter

KC908 can demodulate AM FM SSB CW etc analog modulation signal. KC901 has no demodulation function.

Spectrum analyzer function of KC908 will more powerful than KC901

KC908 small than KC901

KC908 can connect to the computer via usb3.0, use GNURadio software like B210 SDR

KC908 have TF card slot can record IQ or audio signals.


Difference between the Beta version and the Final version

In the boot screen it will show the Beta version.

Beta version get full frequency range option, it can work to 12.5GHz, allow use to set to 22GHz(performance will be bad); in final version it will sales different price with different frequency rang.

The final version will be improved by user feedback of beta version, so the appearance, operation and performance may be changed. If it’s just a software change, an firmware update can be use to beta version update.

Beta version have 1year warranty. The final version also get a basic warranty for 1year.




Include KC908, charger, shoulder strip, user manual, safety case and express shipping


Beta version Sales range

Deepace distributors/ Hobbyists who have basic knowledge of radio measurement and can provide internal measurement opinions



Sales limit

Just 1 pcs for 1 distributor / person




First 15 payment person will ship out at March 31 to April 15

(The first batch 15pcs has been fully pre sold)

Then later payment will ship out at April 30 to May 31

According to previous experience and the uncertainty of supply chain caused by the coronavirus, the delivery may be delay.

Express shipping usually take 7days.


Time for payment

Right now to March 8, 2020


Payment method

Paypal account: (recommend)

T/T(Company account only, it will take few days, Not recommend)

MoneyGram/WesternUnion(contact our manager



In case of direct payment due to non-compliance with the pre-sale scope and other pre-sale test conditions, we will take the initiative to return the payment in the original way after deducting the service charge of the payment system.


You can contact us at any time to apply for a refund before the official notice begins to ship. If there is a service charge in the payment system, it will be returned to the original road in full amount after deducting the service charge. The processing cycle of refund is usually within one or two days.


No refund application will be accepted after official notice of shipment. Except for the case of products damage due to logistics reasons.


Exemption from declaration

There may be imperfections in the beta version equipment, and in the most serious cases, major defects may be found in the internal test. The pre-sale products are not consumer goods. The users participating in the internal test must have professional technology, voluntarily bear the risk, and do not ask for refund or compensation for the reasons of imperfect, inapplicable or unqualified products. No matter what kind of loss occurs, the maximum liability limit is the pre-sale price.