40 Pound Spectrum Analyzer

By | February 15, 2021
Front of LTDZ Spectrum Analyze

Spectrum Analyzer USB LTDZ 35-4400M Signal Source with Tracking Generator

This unit generated a lot of          interest after I mentioned that I had been using one with great sucess on the GARS 2 meter net


Geekcreit® Spectrum Analyzer


Attribute: RF frequency domain analysis tool
Interface: usb
Power supply: usb
Standby current: ≤100mA
Sweep current: ≤350mA
Sweep bandwidth: 33mHz---4400mHz
Turn on the tracking source output bandwidth 33mhz---3000mhz
Sweep step: ≥ 33~68.75mHz/125Hz, 68.75~137.5mHz/250Hz, 137.5~275mHz/500Hz, 275~550mHz/1kHz, 550~1100mHz/2kHz, 1100~2200mHz/4kHz, 2200~4400mHz/8kHz
Sweep speed: ≥800 points / sec
Sweep dynamic log ratio: > 50dB
Point frequency or sweep output power: ≈0 dBm
Input detection: ≤10dbm
Background: ≈ -60dBm
Software used on the computer side: NWT4.11.09 version
Computer operating system: winxp, win7, win10;

What do I think of the LTDZ

  1. It is cheap: I bought it for little over 40 Pounds including shipping.
  2. It arrived in around two weeks.
  3. It is  small about the size of a pack of playing cards.
  4. The case looks actually quite good, it has a nice finishing and some labels. Also, there are a total of 4 LED's to signal IN/OUT ports operating, TG ON/OFF and general power ON.
  5. It uses a Micro USB connector
  6. No accessories were included,        except for the USB cable.
  7. Software required is a download from here
  8. A quick google will also find links to alternative software.
LTDZ rear


For a 40 pound price tag please don't expect            performance at the same level as professional test equipment costing ten's of       thousands of pounds.

This unit does have some  limitations but is a useful       addition to the amateur shack.

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