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WB-SG1 wide band generator

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Grandchuck:
This unit just arrived so needs more testing.  As a preliminary report, all seems to work as expected.  Amplitude accuracy is nothing to rave about but is acceptable; the frequency accuracy is very good.  The operation range of frequencies is as advertised.

Channel 2 can be modulated by Channel 1, as shown below.

Diabolo:
Hello,

Ok.
The CH1 frequency of 100 kHz will modulate the CH2 frequency (1080 MHz) by this value (100 kHz) if the "MOD" function of CH2 is ON.
The WB-SGI generator is sold +/- 145 $ / 135 € on Aliexpress, or Ebay.

Serious seller and fast shipping.
- https://fr.aliexpress.com/item/4000468601984.html?spm=a2g0w.12010615.8148356.22.11f0d5c7pfHHq1

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The name WB-SG1 would suggest that a version # 2 "WB-SG2" could appear with all the options that are absent on the WB-SG1, but it would be more expensive to buy.
The FA-1 frequency counter was followed by the FA-2 frequency counter.



Diabolo

Diabolo:
Hello,
It would be interesting to see the level of harmonics with a spectrum analyzer that I do not have available. If anyone could make these measurements they would be welcome.
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What about an FM modulated signal on CH2 ?
For example, a fundamental signal modulated in FM with a deviation of 25 kHz is not likely to resemble an FM signal with a deviation of 100 kHz.

Regards
Diabolo

Grandchuck:
Here is the spectrum of channel 2 from 35 MHz to 1.5 GHz.  How does one obtain FM?

Diabolo:
Thank you for the answer.
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The manual says that CH2 modulated by frequency CH1 is a CH2 signal modulated in FM.

Diabolo

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