RTL SDR LNAs

Jonathan Rawlinson jonathanpieman at gmail.com
Thu May 23 21:27:40 UTC 2013


Hello All

This is the first time I have posted on this list, sorry if I have done it
wrong

I would like to use a line powered "cheap and nasty" LNA with an RTL dongle.

E.g.
http://www.amazon.co.uk/Satellite-Signal-Amplifier-Booster-electrosmart%C2%AE/dp/B003S5LBVQ/ref=pd_sim_sbs_ce_1

This may seem a like stupid question (I will ask it anyway) but will the
dongle need protecting from the 18V going down the antenna line. I have
seen some diagrams with protection and some without.

If protection is required, has anyone got any suggestions on how I should
do it???

Many thanks

Jonathan, M0ZJO
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