Looking to replace my cable tv splitter with this one.
new setup
- Thread starter thewrench002
- Start date
You will get a good gain; quick math show that you are losing around 10 DB at the splitter and 3 DB at the coax for 155 mhz. Both numbers are rounded up.
At 13 DB out of 24 you get 11 DB left.
Better think about a FM filter as you will probably get interference and maybe some DB padding to test how low you can go. Too much is like not enough.
At 13 DB out of 24 you get 11 DB left.
Better think about a FM filter as you will probably get interference and maybe some DB padding to test how low you can go. Too much is like not enough.
Ubbe
Member
Those splitters are $120 second hand at Ebay, as you otherwise will need to special order them from MiniCircuit.
Amplifier have a 4dB noise figure and MiniCircuit themselves state that low noise are <3dB.
Its IP1 out compression are at +11dBm and at a 25dB gain it is -14dBm input. IP3 out are at +25dBm and 0dBm in.
A much better amp are their ZX60-P103LN+ with a 0.4dB noise and IP1 out compression at +22dBm that are +2dBm at its input. IP3 out are at +38dBm that are +18dBm input. It's a huge improvement over the other amp.
Total cost a bit more than $200.
All PGA103+ amplifiers are the same, you can't do them any different as it is one semiconductor that you set power to. Then you can get a $20 amplifier that can be powered from the coax and install at the antenna. And of course that $120 second hand splitter can be replaced by CATV 8 splitter that costs $15 new. Then order pigtails with F connectors at one end and the proper connector for your receivers, BNC or SMA, at the other end. You will end up with some +6dB total gain in the system that might work without overloading your receivers. If you put a 2 way splitter directly on the coax and one output to the 8 way splitter the total gain will be +3dB, like a Stridsberg multicoupler, and you will then also have an extra high level output from the first splitter. A FM broadcast filter are a great advice when monitoring VHF band.
/Ubbe
Amplifier have a 4dB noise figure and MiniCircuit themselves state that low noise are <3dB.
Its IP1 out compression are at +11dBm and at a 25dB gain it is -14dBm input. IP3 out are at +25dBm and 0dBm in.
A much better amp are their ZX60-P103LN+ with a 0.4dB noise and IP1 out compression at +22dBm that are +2dBm at its input. IP3 out are at +38dBm that are +18dBm input. It's a huge improvement over the other amp.
Total cost a bit more than $200.
All PGA103+ amplifiers are the same, you can't do them any different as it is one semiconductor that you set power to. Then you can get a $20 amplifier that can be powered from the coax and install at the antenna. And of course that $120 second hand splitter can be replaced by CATV 8 splitter that costs $15 new. Then order pigtails with F connectors at one end and the proper connector for your receivers, BNC or SMA, at the other end. You will end up with some +6dB total gain in the system that might work without overloading your receivers. If you put a 2 way splitter directly on the coax and one output to the 8 way splitter the total gain will be +3dB, like a Stridsberg multicoupler, and you will then also have an extra high level output from the first splitter. A FM broadcast filter are a great advice when monitoring VHF band.
/Ubbe
