|Customer Reviews for the MFJ-5008.|
|From: David AD8Y|
|Purchased this for recording bat sonar. It works very well for this and I am pleased with the purchase. The reflector diameter is on the small side for good normal-sonic nature sound recording, but adding an electret capsule to the ultrasonic detector at the focus has worked well. I will modify the unit to put regular acoustics on one side of a stereo plug and the heterodyned ultrasound on the other for field biology recording.|
Different bat species have their sonar on different frequencies. The supplied ultrasonic transducer is wide-band enough for the locals; I am planning to try different local oscillator frequencies for best performance on the target species.
As supplied, this device would be a very good addition to a nature center's educational equipment stock.
|From: Glen K6KJQ|
|My purpose for this device is to detect power line noise. Although apparent on HF, the 5008 has indicated the noise to be remote from my property. In the meanwhile, I can hear birds walking on the wires. You might get some unusual attention walking the streets with this thing. I am pleased with the purchase and will surely find many uses. Well built and it does what is intended. |MFJ-4245MVSWITCHING PS, 45AMPS, 12VDC, METERS, ADJ, LED LAMP$149.95
MFJ-929200W AUTO TUNER, LCD/MTR, 1.8-30MHZ$229.95