RF Splitters

[BigRed]

After reading Mike's pers opinion regarding the MicroADSB I noted his reference to RF Splitters. 

Now I love experiementing - so I looked at my own setup and thought I could do the same and why not?   

At the moment I am basically running two SBS3's one for PP and one for MMS2 and BS, antennas one moonraker and other a standard BS105 both are on amps.

What Ive done and its working is Ive connect both SBS3's to the Moonraker via a very basic RF splitter its messy as Ive had to use a few more plugs then I'd like and will probably have to create or order some descent patch leads hence removing some plugs.

My question as and I noticed there were different types of RF splitters is do I need to consider a better splitter? (as im sold on the idea and can remove a amp and antenna) and is the loss worth it? Id imagine this sort of hotch-potch setup would be creating a bit of loss in signal - I have noticed the blue lights flickering more in the past as I'd always have a steady two lights and now on both it clickers more.

I look forward to advice and guidance 

[Anmer]

Hi Cam, Happy New Year.

I'm more than happy with my splitter.  The only drawback is the cost at just under GBP £100.

I tried using a BNC T-Piece and one receiver grabbed all the data.

[kered]

Would a duplexer not work? they are reasonably priced and work both ways, ie 1 to 2 or 2 to 1
Also heftally built as they are for transmit to

[BigRed]

Hi Mike and Kered,

Cheers on the advice - which one did you get Mike, theyre might be something similar here and Kered, duplexer?

Mike Im using a standard BNC-T seems to be working!

[Anmer]

This is what I use.

http://www.haydon.info/proddetail.asp?prod=SP3

[G4UMW]

Duplexers are used on two-way radio systems where there is a difference (usually of at least several MHz) between the tx and rx frequencies. They permit simultaneous transmission and reception using a single aerial i.e. duplex operation (hence the name). They're also used to isolate the receiver from the transmitter on radar systems. I don't think one would work to split a single frequency output from a single aerial to two receiver ports.

[viking9]

Here's a splitter (2 Gig): for little money;

http://www.google.co.uk/products/catalog?hl=en&q=antenna+splitter+uk&cid=2234622544149965342&ei=dWbkUKydFqaf4wbKsoHgAQ&ved=0CCMQrhI

[kered]

Thanks Tom, Have you tried it, big diference in the price compared to the one Anmer has.

[viking9]

Thanks Tom, Have you tried it, big diference in the price compared to the one Anmer has.

No I haven't tried it.

[BigRed]

OK,

Research thus far, I am now using whats called a '2-way Wilkinson and N-Way Cascaded Power Divider / Combiner' from RFI Comms. With new patch leads etc thus removing several add-on plugs. See pic.

I also have on order the same as Viking9 the 2gig splitter.

But so far it seems to work very well, the difference from using the t-piece is obvious.

[Attachment deleted by Admin to save file space]

[Anmer]

How much was it Cam?

And where did youn get it?

http://www.rfiwireless.com.au/multicoupling-monitoring/system-components/power-dividers-combiners/power-divider-combiner-sp8025-5102-11.html#.UPAIteQzzTo

[BigRed]

Mike,

Cost for Splitter $70 AUS and $30 for three new patch leads

And I got the item from UHF.com.au

Ive used these guys a few times plus they service and install allot of our radios at work and have always been helpful even when they dont stock what Im looking for!

[Chris-G0WTZ]

Do bear in mind the one Tom has found is for 75 ohm cable (TV and Sattelite) so a mismatch may give losses plus cables could be awkward as they will be F type

Regards

[BigRed]

Thanks Chris,

The RFI one seems to be working brilliantly, Im not seeing any loss to both PP and BS.

The Monster 2Gig I think will just be a 'testa'!

My wife is thrilled to see one antenna removed from the roof!!! 

[birdie]

Hi Cam, Happy New Year.

I'm more than happy with my splitter.  The only drawback is the cost at just under GBP £100.

I tried using a BNC T-Piece and one receiver grabbed all the data.

This is a good one made by Mini-circuit. I am using this with good results.

http://www.minicircuits.com/pdfs/ZAPD-2-21-3W.pdf

USD 54.95 each.