Frequency reference

The General forum is where users can discuss any topic regarding Motorola communications equipment - hardware, software, etc. There are also several focused forums on this board, so please take the time to ensure that your questions doesn't fall into one of those categories before posting here!

Moderator: Queue Moderator

Post Reply
GlennD
Posts: 482
Joined: Tue Jun 15, 2004 8:00 am

Frequency reference

Post by GlennD »

For all of you in the LA area we have completed locking all of our Quanters on Signal Hill to a GPS reference.

Back in the analog tv days I used to use a network locked sound carrier on 175.25Mhz

Our most active frequency is 460.125 PD1. That is 24 hours. The other channels are used on a rough time table.

After 11AM all 4 dispatch channels are used. 460.125, 460.225, 460.35, 460.2.
User avatar
d119
Posts: 3538
Joined: Tue Mar 19, 2002 4:00 pm

Re: Frequency reference

Post by d119 »

Good stuff. I have a GPS reference I keep everything at home locked to, and it is backed by rubidium which is backed by an OCXO. It's an Efratom unit. Can't beat it. Nice to know things are where they are supposed to be.

I also keep all the PC's and network peripherals at the house locked to WWVB via a Spectracom Netclock/2 and Netclock/ETS.

I am a standards whore.
GlennD
Posts: 482
Joined: Tue Jun 15, 2004 8:00 am

Re: Frequency reference

Post by GlennD »

I have a china surplus Ebay Trimble Thunderbolt GPS that I keep my home HP8920B locked to.
At under $150 for all the parts it was a no brainer.
User avatar
d119
Posts: 3538
Joined: Tue Mar 19, 2002 4:00 pm

Re: Frequency reference

Post by d119 »

No kidding. The Efratom and Netclock were junkers from work, and I bought the ETS for like $100... Worked out really nice.
Post Reply

Return to “General Motorola Solutions & Legacy Radio Discussion”