Frequency reduction of bat calls is accomplished in two ways: frequency division, which divides the ultrasonic sound spectrum by 10, in real time; and time expansion, where the Baton XD, having selected the optimum few calls of the bat pass, instantaneously creates a high speed digital recording and then immediately plays it back 10 times slower. The unit does not go 'deaf' at any time during this process so no bat pass will be missed.
The output can be sent to any recording device, including iPhone and Android phones, for instant or later spectrum analysis.
To accurately identify bat species from calls, four of the essential measurement criteria required are bandwidth, repetition rate, call shape, and relative intensity. The Baton XD provides all of this information via its two simultaneous modes. Both modes retain amplitude information and frequency bandwidth. The call repetition rate is available from frequency division and a more detailed output of call shape is provided by time expansion.
- Time expansion and frequency division (x10)
- A-D convertor 441kHz sample rate (12 bit)
- Output DAC 44.1kHz (12 bit)
- Frequency response better than 18kHz to 120kHz
- Intelligent output sensing of Line-out/headphone/smart phone
- Power consumption 20mA Battery 9v, PP3 (<60hrs with Lithium Polymer, 15 hrs with NiMH)
When conducting night time surveys, it is important to keep as much of your attention as possible for watching the environment, both for personal safety reasons and for accurate judgement of bat activity, which can be just as important for identification and behavioural assessment as sound analysis alone. For this reason the Baton XD has just a single tactile button for accessing all of its functions.
The single button operation controls the speaker output, channel swapping and volume change. The auto-sensing output adjusts automatically for different devices which might be connected to it such as headphones, line-out devices, recorders and smart phones.
The Baton XD is packed with the very latest advanced circuitry in a very small device and yet it only consumes 20mA. Battery life, even with a standard alkaline battery, is above 20 hours (depending on use) but can be considerably extended by using a lithium type to around 60 hours.
Baton XD is available with built-in strong magnets which will enable the unit to be attached to the exterior of most cars for mobile transect road surveys.
We aim for next working day delivery on all UK mainland orders received before 3.00pm. Where products need to be made to order or are not a regular stock item, or during busy times of year, despatch times may be longer.
If your order is urgent please call us on 01451 833 181. There is usually an additional charge for timed delivery.
We will always use a reputable courier company and require a signature on delivery. Smaller items are usually shipped using Royal Mail or DPD, and larger items are sent using TNT or Tuffnells. Palletised deliveries are with Pallex.
We will email you shipping confirmation after your order has been despatched. Where available, you will also receive tracking notification by email or text. If you need to track your parcel urgently then please contact us.
We can deliver to anywhere in the world, but you may need to contact us for a quote.
If your order doesn’t qualify for free shipping then UK mainland delivery starts at £6.67 ex VAT, while Highlands and Islands delivery starts at £12.50. You can calculate shipping costs using the basket.
If you receive damaged items or the wrong goods, please let us know straight away so that we can arrange for them to be returned to us and replaced as quickly as possible.
You will need to obtain a Returns Number - please call us on 01451 833181 or email firstname.lastname@example.org
Please return goods, WITH THE RETURNS NUMBER MARKED ON THE PARCEL to: Wildcare, Eastgate House, Moreton Road, Longborough, GL56 0QJ
We may ask for a photograph any damaged items before we agree to replace them.