The Spectrum Analyzer of "Funkamateur" is a highly recommended addition for the network tester. It offers 3 different bandwidths down to 300Hz (also 7 KHz and 30 KHz) and can be remote controlled via the existing NWT-S/W-package. Thanks to a very professional development the analyzer worked right after the first start. Alignment is of course not that easy - but did we expect something different?
Frequency-range is 1...75MHz and 135-148 MHz, IP3 is +15dBm, resolution 1Hz, displays from +10...-60dBm, Input max is +23dBm or 200mW @ 50 Ohms