Re: Voting Receiver Group Post Comments
> The best routing of the voted audio is by fiber optic cable, > then microwave, then RF point to point link and lastly and > the cheapest by telephone line. A digital microwave hop (path) and a fiber path... in the real world should be considered pretty much the same animal. I suspect a leased telco line is quite a bit more expensive (ongoing costs) than a properly installed RF-Link. > If you are using telephone line, be sure all lines are close > together in frequency response and time delay characteristics. If you wish upon a star... > If not request the telephone company condition the circuits > to be close as possible. ... when the telephone company is able to find the one remaining employee who knows anything about radiotelephone "piece-out" (RTO) lines before that person retires. Otherwise you'll be banging your head against the wall quite a bit. > Also, the newer voters have automatic line leveling circuits > built in. So did a number of the old ones/models... but not all. > These typically work by using the 1950 Hz no signal tone as > a reference. ... activity, path level/loss and a path failure indication. > Your efforts in adjusting the line send and receive levels > is very important to the satisfactory operation of > the complete system. And quite the eye opening experience... > Keep the knob twiddlers out! put the equipment in a timed bank vault... or similar box. cheers, s.
