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#11
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Splitter/diplexer/duplexer for 2 COM radios
RST Engineering wrote:
And you think that relay, with operation measured in hundreds of milliseconds, is going to protect tens of watts from frying your fractions of microvolts front end measured in tens of microseconds? I have both an FCC commercial and ham license and have a passing knowledge of RF. The relay would be controlled by a manual switch and would connect one radio to the antenna and the other to a dummy load. What a maroon. Great way to treat a customer. I didn't complain when you took 4 weeks to send me an intercom kit. Now you insult me on the internet. Time to call it quits. Jim |
#12
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Splitter/diplexer/duplexer for 2 COM radios
In article ,
Jim Stewart wrote: What a maroon. Great way to treat a customer. I didn't complain when you took 4 weeks to send me an intercom kit. Now you insult me on the internet. Time to call it quits. What? You don't like dark purple? |
#13
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Splitter/diplexer/duplexer for 2 COM radios
"Jim Stewart" wrote in message
.. . RST Engineering wrote: And you think that relay, with operation measured in hundreds of milliseconds, is going to protect tens of watts from frying your fractions of microvolts front end measured in tens of microseconds? I have both an FCC commercial and ham license and have a passing knowledge of RF. The relay would be controlled by a manual switch and would connect one radio to the antenna and the other to a dummy load. Most DowKey coaxial relays that we have "on our shelf" are of the SO-239/PL-259 variety that were made by the bazillions in the '50s and '60s. Two things are wrong with them. One, this non-constant impedance connector variety isn't too much good above 30 MHz.. Two, unless you got the (rare) gold-flashed version of the relay, the receive side of the relay with the silver contacts will oxide and sulphide up in a few years and there is no known way of getting inside to clean the contacts. You can remove the relay from service and "flash" the contacts with a DC voltage/current source, but this is a temporary fix at best. Three, you now have trashed your dual radio redundancy with a single point failure. When (not if) the relay goes TU, you have lost your communications capability. As somebody else pointed out, a second antenna is the optimum solution. Whether or not you choose to take this good advice is up to you. What a maroon. Great way to treat a customer. I didn't complain when you took 4 weeks to send me an intercom kit. Now you insult me on the internet. Time to call it quits. The day I don't call it like I see it for fear of ****ing off a customer, a constituent, or an FAA inspector is the day they take me out the door feet first. Jim |
#14
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Splitter/diplexer/duplexer for 2 COM radios
RST,
The day I don't call it like I see it for fear of ****ing off a customer, a constituent, or an FAA inspector is the day they take me out the door feet first. Adding arrogance to insult in a public forum. Great business strategy. I cannot believe it works. For me, the day I do business with your company is the day they take me out the door feet first. And have a nice day. -- Thomas Borchert (EDDH) |
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