Usb tv tuner for pc signal analyzer serial#

There is an interesting experiment to try, these two methods should give the same results:ġ. They are related, a weak signal is likely to produce more errors but a strong signal can still have a high error count under certain propagation conditions, for example when short delay reflections are present.

Usb tv tuner for pc signal analyzer serial#

A true digital tuner provides a serial data stream at it's output and measures signal strength by detected errors rather than by how strong the received signal is. What I envisaged was a tuner with digital output as are used in terrestrial and satellite TV in most countries these days but I think you were meaning an analog tuner with digital tuning control which is quite different. Your original post mentioned a digital tuner.

If no: I will desolder the SAW filter and the IC that controls the AGC from the TV board and use that.Ībout BER, I think its only about satellite tuners but Im not sure. If there is a relation: I can use an analog tuner, convert its IF to DC voltage with a diode, capacitor and measure that. 'Does larger signal means larger IF out or the IF have same amplitude for different signal levels ?' I asked that in the first post but didn't expressed myself good because my english is not perfect.

I opened this thread because I didn't know Is there a relation between the carrier magnitude and the IF's one.

BigBoss, very good IC but its very expensive: 30$ for 5 pcs and I need to wait 1 month to arrive because I can't find it in my country, in Bulgaria.īetwix, Are you talking about a relation between the carrier amplitude and the IF out amplitude or you are talking about a relation between the carrier and the amplitude of the power detector in the NTSC demodulator after the SAW filter ?