• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

  1. H

    Any experience with Pettersson M500 microphone?

    M500 and tablet Hi, my tablet has a windows 8.1, is is 7", TW700 tablet, sub 100 USD/UKP/€, running intel atom CPU [email protected] with little memory/diskspace. The usable disk space is expandable with a microSD card. The microphone cable attaches to the normal sized USB connector. I wouldn't...
  2. H

    Any experience with Pettersson M500 microphone?

    Well, if you look at the sound at 15,121 sec you can see the fundamental at about 55kHz, the H1 at 115kHz and H2 at 170kHz and weak tails to about 220-230kHz. I am quite sure European bats top 150kHz too. It depends quite a lot on the microphone and the recording system. Trinidad has about 7...
  3. H

    Any experience with Pettersson M500 microphone?

    high frequencies with M500 Hi, I get regularly up to 140kHz. The problem with the high frequencies is that the dominant frequency usually the fundamental or the 1st harmonic (H1) tends to be so strong that the higher frequencies cannot build up before signal saturation. Said that I have some...
  4. H

    Any experience with Pettersson M500 microphone?

    Hi, Replying my own inquiry. I have now had it for 10 nights operating on bats of Trindad. I am very pleased with the M500. Will send you later some spectrograms. Harry
  5. H

    Any experience with Pettersson M500 microphone?

    Hi, I would appreciate in hearing from you asap if you have experience with the relatively new Petterson M500 ultrasound microphone. Any sonograms (aka spectrograms) of bats or rodents showing ultrasounds in the range 120 to about 200 kHz would be of high interest. Doesn't matter which...
Back
Top