What Next?

MULTI-16 Parts
New products are produced in collaboration with our trusted suppliers.

We are beginning the production of our MULTI-16 units. MULTI-16 units can be daisy chained together to link 32, 48, 64, 80, and 96 probes to enable users to carry out Earth Resistance Tomography (ERT) quickly and with the minimum of fuss. The MULTI-16 units link to a modified TAR-3 Resistance Meter and interface to the TAR-3's 'Line Mode'

As with all of our products the MULTI-16 unit is supplied with the all of the equipment to start Earth Resistance Tomography: cables, probes, etc.

GNSS antenna (L1, L2 and L5 Band)
Just arrived – our L1, L2, and L5 band GNSS antenna

Made to meet our exacting specifications, our GNSS antennas receive signals on the L1, L2, and L5 satellite bands enabling our equipment to receive signals from the following satellite constellations' high precision secondary data transmission band alongside the standard accuracy (L1) band.

  • GPS (USA)
  • Galileo (EU)
  • GLONASS (Russian Federation)
  • BeiDou (People’s Republic of China)

Our GNSS antenna is manufactured using brass and does not require a steel ground plane which makes them sutable for use with Magnetic Gradiometers. Please contact us for further details.

The TAR-3 frame can be fitted with a spiked wheel
The TAR-3 frame can be fitted with spiked wheels

RM Frobisher (1986) Ltd aren't standing still! We have a policy of continuous research and development to make modern, reliable equipment available to individuals, professional archaeologists, and groups and societies.

Our current development project is to add spiked wheels to the TAR-3 to replace the probes, allowing the user to push the frame and take readings without the need to lift the probes clear of the ground. The wheels measure the distance moved and the TAR-3 records the measured resistance every 0.25m (four readings per metre) The user can walk at up to five miles per hour (8 kph, 2.25ms-1) and stop and start while taking readings.

‘The TAR-3's wheels will make resistance measurements faster than magnetic gradiometry!’

The TAR-3 spiked wheels will be available soon! Please contact us if you would like more information.

TAR-3 Wheel bearing plates
TAR-3 Wheel bearing plates

See the TAR-3 Wheel Mode FAQ here

New Products

Products in development
New products in development

While we can’t make site visits we are busy developing new products and adding new features to our existing products. Not being able to visit some of our suppliers is delaying some aspects of our product development but we are working on other areas.

New Products in Progress

TAR-3 Multi 5 Mounting plates
Mounting Plates

Before products can be placed on sale they require fittings, enclosures and other parts to be manufactured. These brackets have been laser cut and formed into shape. They are being sent out for 'tumbling' to de-burr them before being power coated. These final operations enable us to produce high quality products.

TAR-3 Multi 5 Fixings
Fixings and other parts

Like all of our products, new products are supplied with all of the parts, accessories and tools needed to use them as soon as you unpack them!

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© RM Frobisher (1986) Ltd. 2015 - . All rights reserved