Multiple scanners feeds with one Antenna.

[hvscan]

I hope most can afford a $23 commercial quality communications grade splitter? Should work from 1 to 500 MHz. MCL 6-WAY POWER DIVIDER / COMBINER NOS - eBay (item 200443525644 end time Apr-25-10 18:24:14 PDT)

Oh you have to love eBay!

I just purchased one.

 

[nyscan00]

Hi all I would like to do something very similar... use one UHF base antenna for both my scanner and GMRS base radio. Can I transmitt on the radio while I have my scanner on or will it interfere? Guess i would also need a multicoupler?

Thanks

 

[zz0468]

Hi all I would like to do something very similar... use one UHF base antenna for both my scanner and GMRS base radio. Can I transmitt on the radio while I have my scanner on or will it interfere? Guess i would also need a multicoupler?

Thanks

It'll do worse than interfere. It'll probably burn out the multicoupler and the front-end of your receivers.

 

[nyscan00]

ok what can be used for this type of application? Duplexer?

 

[hvscan]

Wirelessly posted (BlackBerry9530/5.0.0.328 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)

Two separate antennas well spaced from each other.

 

[R1VINCE]

if I may throw in my two-cents(for receive only)

Wideband RF Multicoupler - 16 Radios, Surge Protected, 50 Ohm

 

[zz0468]

ok what can be used for this type of application? Duplexer?

Maybe, but most duplexers are made for only a single TX frequency, and a single RX frequency... which kind of precludes using a scanner.

What you want to do CAN be done, but it's either very expensive, or technically cumbersome enough that it's beyond the reach of the typical scanner/gmrs user. That would involve RF transfer relays, a multicoupler, and a TR sequencer to switch the relays before the transmitter gets keyed.

You're better off with two separate antennas.

 

[trooperdude]

ok what can be used for this type of application? Duplexer?

Diplexer. But not usually used on the same band.

Terrible idea in general to use same antenna for scanner RX and a radio TX.

Use two separate antennas properly spaced.

 

[scan-o-matic13]

Cable and connectors aside, one thing to think about when running your feedlines, regardless of type, is try to keep them clear of anything that could create interference (ie electrical wireing, cable tv lines, etc)

It wont matter what your using if the interference is from an external souce within your home or shack. Just one more thing to think about