# Siglent oscilloscope decreasing signal ?

#### Zeeus

Joined Apr 17, 2019
615
ignore title

Noticed that my scope, going from 200uS/div to 100 micro-secs/div then the signal reduces by half

why? how to cure?

dunno if can post this : Anyone interested in changing scopes or spectrum analyzer for scope (SDS 1104X-E 100MHZ 4 channels)

Feeling generous to trade higher MHZ for this? RF beginner: spectrum analyzer need but broke

Thanks
Mod edit: updated title. Satisfactory? JohnInTX

Last edited by a moderator:

Joined Mar 10, 2018
4,057
A basic spectrum analyzer can be done with this -

Regards, Dana.

#### andrew_salinas

Joined Sep 30, 2019
1
Depending on your budget you can get a hack rf one which can both receive and transmit 1MHz to 6GHz for only $320. If you don't need to transmit and you have a limited bandwidth then you can get an rtl-sdr for like$20 on amazon.

#### tautech

Joined Oct 8, 2019
196
Hi, just joined to help with this.

First you should not be seeing such confusion on this scope and can I ask what firmware version you have installed as the latest V6.1.33 is a very worthwhile upgrade if you don't have it installed.
You can get it here: