SAWBird+ H1 filter review for hydrogen line radio observing of Milky Way

[athornett]

I think this little Dongle sized device has revolutionised radio astronomy for amateur. About £30, consists of SAW filter at 1420MHz and cascaded amplifier = really helps pull out the hydrogen line at 1420.405MHz.

I dont have competitors' filters so can't compare to other options but invite anyone with those filters to submit comments here on how effective they are.

Andy

[SteveBz]

Link or image?  Maybe it's the one I got, I don't recall, we've just moved and it's all in boxes still.

[athornett]

https://www.nooelec.com/store/sawbird-h1.html

[athornett]

You can see the NooeLEC SAWBird H1 in action on my website www.astronomy.me.uk