Which brings up a good point.? When testing for weak signals such as IMD you should first look for the strongest signal that your device will be exposed to.? That includes other signals that may be present at the location you are at.? My Anritsu Sitemaster and Cellmaster both alert me with a tone to warn me that a high level signal above it's allowable level is present.? This may be a high powered FM or TV station at the site.? Also, you may be tempted to reduce attenuation to be able to see the IMD, only to allow another signal to cause damage to your device.
Joe, K1ike
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On 1/5/2025 4:19 AM, MaxPi via groups.io wrote:
Firstly, 100 watts is 50 dBm, so the output power after your attenuator (50dBm - 40dB = 10dBm) will exceed the permitted 6 dBm for the TinySA. Although I would highly recommend not to exceed 0dBm at the input, for all signals including harmonics.
