MicroWave Antenna 6GHz

This is a directional antenna for professional sweep receivers, not a detector in itself. A log-periodic design covering 800–6500 MHz with about 6 dBi of forward gain, it suits Delta X and the DD1206, DD1207 and DD1216 units, and it does the one thing an omnidirectional whip cannot: it tells you which direction a signal is coming from.

Directional versus omnidirectional, and why it matters

The stock antenna on most detectors receives more or less equally from every direction. That answers “is something transmitting near me?” but not “where is it?” — and in a room with live Wi-Fi, Bluetooth, and a phone in every pocket, the first answer is always yes and therefore useless.

A log-periodic antenna is directional: it receives strongly from where it points and weakly from elsewhere. Sweep it slowly across the room and the signal rises as it crosses the source. That is how you go from knowing something is transmitting to standing in front of the object doing it. The 6 dBi forward gain is what produces that contrast between on-axis and off-axis.

The log-periodic geometry also holds its pattern across the whole 800–6500 MHz span rather than working well at one frequency and poorly at others — which matters because the bands in play now run from cellular through 2.4 GHz Wi-Fi and Bluetooth up to 5 GHz and beyond.

Using it in a sweep

Mount it on the supplied tripod for a fixed baseline reading of the room — set it up, let the receiver sit, and watch for anything that appears over time. Devices that transmit in scheduled bursts rather than continuously are exactly what a walk-through sweep misses, and a static monitoring period is how you catch them.

Then convert the tripod to the hand-held configuration for the locating pass. Reduce receiver sensitivity as you close in, which narrows the field until the source is localized to a specific object rather than a corner of the room. Sweep slowly — pass too fast and the peak goes by before it registers.

Power down your own phone, Wi-Fi and radios first. Almost every false hunt in a sweep traces back to the operator’s own equipment.

Practical notes

Indoor use only, receive mode only. It is a passive receiving antenna: it does not transmit, jam or generate anything, and it will not work as a detector on its own — it feeds a receiver you already have. Tripod is supplied and converts to a hand-held unit for manual probing.

See RF and GPS bug detection for compatible receivers, or TSCM services if you would rather the sweep was run than equipped.