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| ====== Omni VI & VI+ Aux Antenna Input ====== | ====== Omni VI & VI+ Aux Antenna Input ====== | ||
| - | **From the Ten Tec Reflector September 16, 1998** | + | **From the Ten-Tec Reflector September 16, 1998** |
| The front end of the Omni-VI and Omni-VI Plus receiver is protected by two diodes at the AUX RX ANT input jack. It is possible, when | The front end of the Omni-VI and Omni-VI Plus receiver is protected by two diodes at the AUX RX ANT input jack. It is possible, when | ||
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| That does not lessen the aggravation of having to replace them should you have this problem, but at least you're not going to cook the receiver itself. | That does not lessen the aggravation of having to replace them should you have this problem, but at least you're not going to cook the receiver itself. | ||
| - | Yes, it is possible even with small amounts of transmit RF to pop the diodes at the AUX RX ANT jack. You may want to investigate the possibility of adding an external protection circuit between the receive antenna and the input to the AUX RX jack. There was an article about this in the February 1997 issue of CQ. A very simple solution is to use a low voltage, 10 mA light bulb in series with the receive antenna. Too much RF down the receive antenna jack results in a burned out light bulb rather than burnt diodes. Much cheaper and easier to replace, too! | + | Yes, it is possible even with small amounts of transmit RF to pop the diodes at the AUX RX ANT jack. You may want to investigate the possibility of adding an external protection circuit between the receive antenna and the input to the AUX RX jack. There was an article about this in the February 1997 (Pg 32) issue of [[http://hamcall.net/cq|CQ.]] A very simple solution is to use a low voltage, 10 mA light bulb in series with the receive antenna. Too much RF down the receive antenna jack results in a burned out light bulb rather than burnt diodes. Much cheaper and easier to replace, too! |
| Here's another caveat about the diodes at the AUX RX jack: It is possible (so possible, in fact, that this happened in my own shack | Here's another caveat about the diodes at the AUX RX jack: It is possible (so possible, in fact, that this happened in my own shack | ||
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| Happy DXing, | Happy DXing, | ||
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| Scott Robbins, W4PA | Scott Robbins, W4PA | ||
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| Amateur Radio Product Manager | Amateur Radio Product Manager | ||
