1 字段 2 字段 3 字段 4 字段 5 字段 6 字段 7 字段 8 字段 9 字段 10 字段

GPS Standard Frequency Generator

Total:2440 USD

Item:2350 USD   Shipping:90 USD

FMUSER GPS-FM8 Digital Standard Frequency Generator

1. Introduction

FMUSER GPS-FM8 digital standard frequency generator is a high-performance, high stability generator by digital control with GPS locked. This standard frequency generator can simultaneously track 12 satellites, and choose the best satellite locked according to the spatial position and the satellite signal quality; the standard frequency generator has a self-learning function, after more than 24 hours of training (GPS lock operation), when the GPS off, it still can maintain long-term stability and 1PPS output signal frequency. LCD screen can be viewed by satellite parameters, frequency locking status and other control parameters, the operator can set the GPS lock key parameters and output parameters to optimize the frequency control and optimization GPS locking and 1PPS frequency output. This digital standard frequency generator with its superior performance can be widely used for timing synchronization demanding fields such as telecommunications, radio & TV broadcasting station.


FMUSER GPS-FM8 digital standard frequency generator main features:

FMUSER GPS-FM8 digital standard frequency generator can continuously track 12 satellites simultaneously and choose the best satellite locked according to the spatial position of the satellite and signal quality. It provides high performance and high stability 1PPS, 10MHz, 24.32MHz, 327.68MHz and 655.36MHz output, frequency stability up to 1.2 × 10-12 with low phase noise.

FMUSER GPS-FM8 digital standard frequency generator uses a Kalman filter to achieve self-learning function, when GPS signal cut off, it will into auto-hold function and automatic recovery function of GPS signal re-locked.

FMUSER GPS-FM8 digital standard frequency generator can set GPS lock parameters and 10MHz reference clock source for controlling parameter and setting adjustments.

FMUSER GPS-FM8 digital standard frequency generator receiving antenna length compensation.

FMUSER GPS-FM8 digital standard frequency generator real-time monitoring of satellite-related information, the frequency of the locked state and the reference clock source control parameters.

2 Specifications:

2.1、Technical specifications meet the following standard

《Thunderbolt GPS Disciplined Clock》

2.2. Technical specifications:

1. General                 L1 frequency

C/A code (SPS)

12 Channels continuous tracking reception

2. Update Speed             1Hz

3. 1PPS definition         UTC 20ns (1 sigma)

4. 10MHz definition        1.2×10-12(day mean)

1.2×10-11(after locked)

5. 10MHz harmonics          ≤-40dBc

6. 10MHz pseudo-values      ≤-70dBc

7. 10MHz phase noise        ≤-120dBc/Hz (10Hz~100KHz)

8. 10MHz output             Sine  +12.5dBm±2.5dBm

9. 24.32MHz definition      1.0×10-10

10. 24.32MHz phase noise    ≤-130dBc/Hz (1Hz~20KHz)

11. 24.32MHz temperature    ≤±0.1ppm

12. 24.32MHz output         TTL/HCMOS

13. 327.68MHz definition    4.0×10-10

14. 327.68MHz harmonics     ≤-60dBc

15. 327.68MHz phase noise   ≤-120dBc/Hz (1KHz~20KHz)

16. 327.68MHz temperature   ≤±5.0×10-8ppm

17. 327.68MHz output        Sine≥0.0dBm

18. 655.36MHz definition    4.0×10-10

19. 655.36MHz harmonics     ≤-60dBc

20. 655.36MHz phase noise   ≤-120dBc/Hz (1KHz~20KHz)

21. 655.36MHz temperature   ≤±5.0×10-8ppm

22. 655.36MHz output        Sine≥-5.0dBm

23. Failure Maintenance     ±1 Microseconds (max in 2 hours)

24. Power Supply Voltage    AC180V~AC260V 47Hz~63Hz


2.3、Interface specification:

1、1PPS Output Interface   BNC connector, the difference between Static mode peak and UTC synchronous less than 20ns

2、10MHz output interface                BNC connector,50Ω

3、24.32MHz output interface           BNC connector,50Ω

4、327.68MHz output interface         BNC connector,50Ω

5、655.36MHz output interface         BNC connector,50Ω

6、Remote control interface    DB9-F interface

2.4、Physical specifications:

1.   Rack Standard              19inch

2.   Rack Size                  1U(485mm×305mm×44mm)

3.   Weight                     3Kg

4.   Environment Temperature    0℃~+40℃

5.   Relative humidity          <95%

6.   Altitude                   <4500m


Total:2440 USD

Item:2350 USD   Shipping:90 USD


How far(long) the transmitter cover?

The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.

EXAMPLE 5W FM Transmitter use in the city and hometown:

I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).

I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).

I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).

Below are the approximate range of different power FM Transmitters. ( The range is diameter )

0.1W ~ 5W FM Transmitter :100M ~1KM

5W ~15W FM Ttransmitter : 1KM ~ 3KM

15W ~ 80W FM Transmitter : 3KM ~10KM

80W ~500W FM Transmitter : 10KM ~30KM

500W ~1000W FM Transmitter : 30KM ~ 50KM

1KW ~ 2KW FM Transmitter : 50KM ~100KM

2KW ~5KW FM Transmitter : 100KM ~150KM

5KW ~10KW FM Transmitter : 150KM ~200KM

How to contact us for the transmitter?

Call me +8615915959450 OR
Email me sky@fmuser.org
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.

About Us

FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 13 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services.
Contact email : sky@fmuser.org

Our Factory

We have modernization of the factory . You are welcome to visit our factory when you come to China.

At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .

At Fair

This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.

Where is Fmuser ?

You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .

FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .

Contact: Sky Blue
Cellphone: +8615915959450
WhatsApp: +8615915959450
Wechat: +8615915959450
E-mail: sky@fmuser.org
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620

English: We accept all payments , such as PayPal, Credit Card, Western Union, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me sky@fmuser.org or WhatsApp +8615915959450

  • PayPal.  www.paypal.com

    We recommend you use Paypal to buy our items ,The Paypal is a secure way to buy on internet .

    Every of our item list page bottom on top have a paypal logo to pay.

    Credit Card.If you do not have paypal,but you have credit card,you also can click the Yellow PayPal button to pay with your credit card.


    But if you have not a credit card and not have a paypal account or difficult to got a paypal accout ,You can use the following:

    Western Union.  www.westernunion.com

    Pay by Western Union to me :

    First name/Given name: Yingfeng
    Last name/Surname/ Family name: Zhang
    Full name: Yingfeng Zhang
    Country: China
    City: Guangzhou 


    T/T .  Pay by T/T (wire transfer/ Telegraphic Transfer/ Bank Transfer)
    BANK CODE: 012
    Account NO. : 012-676-2-007855-0

* It will be sent in 1-2 working days when payment clear.

* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email sky@fmuser.org

* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.

If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.

If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.

All the packages are form China guangzhou.

* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".

* After ship, we will send you an E-mail and give you the tracking number.

For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .

Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
Phone: +8615915959450

Please return to this address and write your paypal address,name,problem on note:

paypal solution Moneygram Western UnionBank OF China
E-mail:sky@fmuser.org   WhatsApp:+8615915959450   Skype:sky198710021 Chat with me
Copyright 2006-2008 Powered By www.Fmuser.org