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![]() Please guys Without going to war with each other over the answer and leaving me not knowing who to believe, is an MFJ analyzer a good choice in the under five hundred dollar range? Would using one of the one watt HTs do for a signal source or is that still to high. -- Tom Horne Tom, A one watt HT will do fine, but the signal will still be too strong close in to work with. You need to get the power down to perhaps one milliwatt or less to plot the antenna pattern in a field or car park. You can make up an attenuator to reduce the power from the HT. Just making up a patch lead between the HT and the antenna with a 50 ohm, 1 watt resistor shorting the core and outer will probably reduce the signal to something you can work with while still giving the transmitter a load to work into. (You can make up exactly 50 ohms using two 100 ohm, 1/2 watt resistors). Or make up a simple single transistor 'bug' transmitter from a handful of components. Plenty of designs available through Google No need to spend more than a couple of dollars. The 9v battery is likely to be the most expensive bit. Mike G0ULI Mike's right - but if you don't have an MFJ 259 antenna analyzer yet, this would be a good excuse to go ahead and get one. Its just great when working with antennas. You can get one for about half of your $500 budget. |
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