开云体育

For those who are using the TinySA as a bandscope and/or panadapter: how are you connecting it to your antenna without having to constantly plug and re-plug when you want to transmit or receive?

Are you using a directional coupler or an antenna switch?

Surely it is better to pick off an if signal from the receive path of your transceiver or receiver. It does mean opening the case and working out where to put the coax ending in a tiny capacitor. If you have a very fancy set, there might be a suitable output provided through a socket on the back.

You will not have to adjust the sa when changing bands, and as long as there is no rf flying around the shack you will not have to worry about damage during transmit.

The sa is not sensitive enough to pick up weak signals direct off the aerial without a preamplifier anyway.

Steve L

When using as a bandscope connected to a receiver IF the tinySA (like all heterodyne swept spectrum analyzers) radiates and care must be taken to avoid ingress of the tinySA radiation into the IF of the receiver. The actual effect will depend on your receiver so no general guidance can be provided.
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