Finally got off my arse to do some testing of the various splitters on hand. The need for sharing one hf antennae with several rx at the same time has been apparent for ages, but I find it hard to get out of bed some days.
Anyway, I have 3 or more 2 port splits laying about, and one 6 porter. I need 3 ports, but if I employ the 6 porter to get 3 outputs it incurs 6dB loss per port where a 2 porter is down 3dB. With a compromise antennae, one wants to save all the deebees one can. I also learned I don't have enough f connector to X adapters.
speaking of bees
https://www.youtube.com/watch?v=xAhuSDRIDHEIn the case of a 2 port split beiong chosen due the loss, the need to switch between 2 table top sets yet give the sdr access full time arises. So what I did was first test the splits on hand for loss on the ambc band, one was marked v/uhf so I discarded that, the other two were similar in construction but differing in make. On testing, the *Holland Electronics GHS-2 was 3 to 10dB or so less loss than a **GE 2-Way Splitter 5-2500MHz.
Regarding the incurred loss, can't really tell the diff and neither do the rigs, and that is exactly what I wanted from this exercise.
I fed one output of the splitter to a ***AD 4 port antenna switch and that to two hf rigs. So far so good, can run the sdr any time in conjunction with any table top rig desired.
Shoulda done this years ago.
All said, must remember to never tx thru the setup as that will blow away an sdr and prolly a pc too. Another switch with at least 2 ports will allow the hf tx rigs to have the antennae all to themselves when desired.
*
http://www.hollandelectronics.com/catalog/catalog.php?product_id=GHS-Series-Digital-CATV-Splitters**
https://www.ebay.com/itm/GE-33526-Pro-Digital-2-way-Coax-Splitter-FREE-SHIPPING-/274115565467?_trksid=p2349526.m4383.l4275.c1#viTabs_0***
https://www.alphadeltaradio.com/delta-4b.html