Generating frequency hopping signal

[cxl6288]

I'm working with 5661 + 5671.
I want to generate frequency hopping signal with 5671. The frequency band is 2400-2500MHz, and the hopping rate is one hop per frame (1.024ms) or 976 hop per second.

I also need to be able to test the hopping signal with 5661 RFSA.

Does it possible to run such hopping test with the 5661+5671?

Thanks,

Chen

[Andy_Hinde · Accepted solution]

Hi Chen,

Is this a Bluetooth application?

The 5661 and 5671 both have instantaneous bandwidths of 20 MHz. In addition, the tuning time to change the RF center of the 20 MHz bandwidths for both devices is about 30 ms.

It would be possible to retune, or frequency hop, within a 20 MHz band in 1.024 ms (by retuning the onboard signal processors), but since the devices cannot cover the entire 100 MHz band of the 2.4 GHz ISM region, if the frequency hops span greater than 20 MHz, retuning the center frequency of the devices would be necessary at some point in which case the tuning time would prohibit this.

Regards,

Andy Hinde

National Instruments

[cxl6288]

Hi, Andy,

Thank you for the help.

Yes, it is a similar bluetooth system.

Chen

[adnan_fazil]

HI

I want to generate a hopping signal with PXI-5671 RFSG and want to analys with PXI-5660 RFSA. While seaching for the related posts i came across ur post, The frequency range in my case is between 200-300Mhz but i will use 200-220Mhz due to BW of 20Mhz...the hopping rate i wil use is very slow as compared to urs..i m trying to do this with 10-20 hops per second..

I m new with the hardware i have used it to generate and analyz the signals but stil unable to generate the hopping signal with predefined hopping sequence and hopping rate...

can you guide me that how to do this????or can u give me a copy of ur VI so that i can learn it from ur program and regenrate with my specs to chk weather it works or not...??

I wil b realy thankful if u can help me in anyway....

REGARDZ

[adnan_fazil]

i kow that the post is vry old ,but i think u can b helpful to me...

help in anyform will b really useful..

REGARDS

ADNAN FAZIL

RESEARCH ASSISTANT

[cxl6288]

Hi,

You can find example by searching frequency sweep

Regrads