Products > Test Equipment

WB-SG1 wide band generator

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mankan:
Stumled across this one eBay auction: #114332851333. Looks like there are 18 and 20GHz options available now.

Output power is now specified further:
1G/8DBM;2G/7.3DBM;3G/8DBM;4G/8.7DBM;5G/9.9DBM;
6G/8.5DBM;7G/4.5DBM;8G/5.2DBM;9G/4.4DBM;10G/3.4DBM
11G/4.3DBM;12G/4.6DBM;13G/3.0DBM;14G/3.0DBM;15G/1.7DBM
16G/-1.4DBM;17G/-4.9DBM;18G/-6.4DBM;19G/-6.5DBM;20G/-8.3DBM

g4dbn:
Has anyone found if there are commands which the WB-SG1 will interpret?  At boot time it shows:

WB-SG1
1Hz-8GHz
SIGNAL GENERATOR
CH1:1Hz-200M CH2:35M-8G
BG7TBL V20191203

but despite trying to fuzz it and lots of keyboard mashing, I couldn't get it to respond at all via the serial/USB.

I can set the frequency via the front panel at up to about 8.7 GHz as you'd expect, but it seems to go a bit flaky at certain frequencies above 8.5 GHz.

This little box could be quite useful with a levelling amplifier and programmable attenuator and filters and a proper decent interface and a proper modulator, but I'm not scrapping my HP E4421B yet.

Neil

noreply:
@g4dbn

Hi Neil,

Welcome to the forum  :)

I have the WB-SG1 and am attaching a user manual for you to look through - if you don't have one already.

I found this device useful - but only for general experimentation.

If you are relying on it to make meaningful measurements - where power levels are important - forget it - its simply not up to the job, despite your idea of leveling amplifier and programmable attenuator.

I looked into this myself and to get an 'accurate' programmable attenuator is a challenge in itself - let alone to 8GHz

- same applies for the leveling amplifier

- now you know why a decent RF signal generator costs big $'s

I also draw you attention to the spectral quality of the signal from the WB-SG1 - its not so pure if you had a closer look with a SA

But despite all of the above - its still a very handy tool for simple testing - where 'empirical measurements' are not important.


texaspyro:

--- Quote from: noreply on August 27, 2020, 04:49:26 pm ---
I have the WB-SG1 and am attaching a user manual for you to look through - if you don't have one already.


--- End quote ---

I don't see an attachment... 

noreply:

--- Quote from: texaspyro on August 28, 2020, 06:17:21 am ---
--- Quote from: noreply on August 27, 2020, 04:49:26 pm ---
I have the WB-SG1 and am attaching a user manual for you to look through - if you don't have one already.


--- End quote ---

I don't see an attachment...

--- End quote ---

So Sorry  |O

It should be there now  :)

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