Titley Scientific bought out – A future for Anabat

Breaking news is that Titley Scientific have been bought out by Elexon (details here) which should give a future for both SD2 development and a future supply of the Anabat Roost Logger which I’ve currently got on test and so far have been very pleased with. Note there’s possibly going to be a new distributor in the UK.

For all repairs and support at the moment I’d recommend :http://www.anabat.co.uk/

Anabat Roost Logger

Anabat Roost Logger

 

I had a good look at the Anabat Roost Logger over the weekend of the National Bat Conference and Chris Corben was good enough to install the drivers on my laptop as well as hand over a folder of recording to get a taste of what it’s capable of recording.

On first look I’m interested. Whilst it isn’t a full blown recording detector capable of species identification, the Roost Logger will enable measurement of activity and identification to genus level. Whilst the microphone is most sensitive at 42khz the results included Lesser Horseshoe calls though the bats have to be within a couple of metres to record from what I’m told. For research into swarming and roost sites this should prove very useful for finding out when bats are active and getting an idea of what you’re likely to encounter. So Roost Logger deployed first to see where to focus survey effort and more expensive kit makes perfect sense.

The whole kit is enclosed within a small pelicase which should make stashing the detector fairly easy in most sites.

I’ve got an Anabat Roost Logger on the way for review and will be getting it straight out monitoring a cave so expect a review by the end of October……

A new Anabat on the way? – Updated

It looks like Titley Scientific are about to release a new version of the Anabat built specifically for long term monitoring in caves, tunnels and roosts.

Anabat Roost Logger

The features all seem sensible enough:

  • Long running times on internal batteries
  • Temperature logging
  • Waterproof case
  • Sealed mic

The rugged peli case style housing looks up to the job and the (let’s hope) waterproof mic will be a great step forward for Anabat. But it raises the question; will the sealed mic be available to retrofit existing detectors?

A long time bugbear of the Anabat when used underground is the, what seems to be, inevitable burn out of the mic once condensation builds. My record is 5 mics in a season monitoring Myotis swarming sites, not just an expense but also frustrating because of lost data and downtime.

As an existing user I don’t want to replace the Anabats I already own, I want a mic that allows me to use them without that headache. It’s one reason I’ve been contemplating switching to the SM2Bat+ from Wildlife Acoustics.

Let’s hope there’s some good news for existing users too.

UPDATE

With a price of £307.20 the Anabat Roost Logger could be a game changer although that depends if it’s capable of species identification or just Monitoring activity levels and temporal patterns at any roost.

Whilst the Titley webpage states it’s compatible with existing software it’s a bit vague on what information is captured. Activity and species ID for under £500? Maybe that’s a bit ‘moon on a stick’ at the moment.

If it is just an activity logger it’s still a useful bit of kit of course, especially for initial swarming site research, but you’ll need to place more expensive kit in the field to identify what bat species are using your site.

*** Update as of 4.9.2012 Reply from Titley states that the datalogger “still presents data in sequence file and ZCA formats, the same as all previous Anabat units. The major difference is the ability to deploy it for long periods and program it to record selectively as the season changes”.

 

Anabat SD1 and SD2

Anabat SD1 (now superceded by SD2)

From: http://www.titley-scientific.com/uk/index.php/anabat-bat-detector

Price: £2062 for SD2 and pda kit

Pro’s: Versatile, small data files.

Cons: microphones sensitive to water damage, cost compared to rivals.

Anabat with pda

Anabat set up with gps and pda

The Anabat is a zero crossing bat detector from Titley Electronics and has long been the workhorse for bat workers needing static longterm monitoring. It’s a versatile bit of kit, capable of either static programmed use or coupled with a pda and gps or just a gps to record transect surveys.

I’ve been using Anabat SD1’s and SD2’s for quite a few years now and up until recently relied on them for most of my survey requirements. The live display of sonograms on the pda is a great tool for instant in the field ID and also invaluable as a teaching tool when running bat detector workshops.

The zero crossing analysis files produced by the Anabat are tiny (think kb’s not mb’s) allowing long term monitoring in busy active sites without the need of purchasing multiple expensive data cards. Coupled with a decent external 12v battery it’s possible to leave the detector running up to a month without filling a 2gb CF card. Workflow using AnalookW to analyse all those collected files is reasonably quick too. Note however this is a very visual system with little useful audio output either in the field or back at the computer.

Hi and Lo MIcs

Ergonomically  and weight wise that Anabat and pda are going to be noticeable if you’re carrying one all night although easy enough to handle in the field.

For european batworkers the two mics of interest are the standard mic and the hi mic, the hi mic is recommended where Horseshoe bats may be encountered or where you’re using an extension cable longer than 1 metre.

For me the weak point of the system is the microphone that needs careful thought to protect it from water contact when deploying it in the field. This is easy on open sites where a cover and 45degree sound deflector can be used to keep the mic sheltered. Underground in typical UK 99% humidity conditions I’ve found condensation eventually builds and takes the mic out. Some users compromise recordings and sensitivity by covering the mic in clingfilm to avoid this.

In use with a pda I’ve also had the system corrupt data files in areas of high multiple bat species feeding activity, a frustrating thing to find at the end of what you think has been a good nights survey. Having started using an EM3 this year, I’ve now gone back to connecting the Anabat to a gps only which when combined with BatNav software is a great reliable tool for simple and quick transect work.

In spite of the above drawbacks I still carry two Anabats in my survey bag because they are just so useful to have and use. The anabat is a great system for long term static surveying with low power use and low data storage requirements but with a few tweaks it could be a lot better. In an time of increased competition I’m looking forward to seeing the next iteration of this detector. If it follows the Anabat Roost Logger I’ll be more than happy

Anabat example sonogram

Anabat example sonogram

Anabat users are advised to keep an eye on Chris Corben’s site for the latest firmware and software.