Batboard

If a dispatch system (remote base station link controlled) has a narrow input UHF around 453.xxxx, and a wide band output VHF, say 154.xxx, will the sound quality be diminshed? I am using a reputable radio tech. FCC class 1 operator who has been in the business for years and years.

Ett1033 wrote:If a dispatch system (remote base station link controlled) has a narrow input UHF around 453.xxxx, and a wide band output VHF, say 154.xxx, will the sound quality be diminshed? I am using a reputable radio tech. FCC class 1 operator who has been in the business for years and years.

It might work better if you try using a radio rather than a tech.

If you have a narrow receiver on the 453 side, you just take that audio through an interface and put it into the 154 transmitter. Set the audio level up with a service monitor.

Jim

Narrow Band UHF Transmitter ---|RF Link|---> Narrow Band UHF Receiver ---|Wired Link|---> VHF Wideband Transmitter

That should be fine. As long as both the UHF transmitter and reciever are narrow band, and the link from the UHF receiver to teh VHF Base is wired, your fine. Just set your audio levels correctly and no one will ever know.

In theory it should work. Our experience around here, though, is that the audio doesn't sound like it should.

I have public safety systems operating with 900 MHz 12.5 kHz uplink to 150 25 kHz repeater. Also 900 MHz 12.5 uplink to 150 MHz 12.5 kHz repeater. Audio is just fine.