H187 vhf narrowband plug-on transmitter instruction manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date: • crystal controlled fixed frequency • wide range input limiting • floating, auto latching input coupler • machined aluminum construction.
H187 lectrosonics, inc. 2 the h187 transmitter is fcc type accepted under part 90 (150-172 mhz), and part 74 (174-216 mhz).
Plug-on transmitter rio rancho, nm 3 table of contents introduction ............................................................................................................................................................................................ 3 general technical description ..............
H187 lectrosonics, inc. 4 the h187 transmitter is comprised of four major functional subsystems: the mic preamp/gain control, the compandor, the compressor/limiter and the rf transmit- ter (see block diagram below). The mic preamp is an ultra-low noise type op-amp. Aside from gain control, this stag...
Plug-on transmitter rio rancho, nm 5 top view control panel limit led level led on off level mute battery power led controls and functions the h187 may be used with a wide variety of micro- phones. The 3-pin xlr type connector on the h187 allows the transmitter to be used with any dynamic microphone...
H187 lectrosonics, inc. 6 operating instructions 1) insert the h187 into the selected microphone. Listen for the “click” that indicates the h187 has locked on to the microphone. Pull on the mic to insure proper locking has occurred. 2) turn the power switch to the “mute” position on both the transmi...
Plug-on transmitter rio rancho, nm 7 swing open release door observe polarity battery replacement the h187 transmitter is powered by a standard alkaline 9 volt battery. It is important that you use only an alkaline battery for longest life. Standard zinc- carbon batteries marked “heavy duty” or “lon...
H187 lectrosonics, inc. 8 troubleshooting before going through the following chart, be sure that you have a good battery in the transmitter - the red power led on the transmitter panel should glow brightly. Symptom possible cause transmitter battery led off 1) battery is inserted backwards. 2) batte...
Plug-on transmitter rio rancho, nm 9 service and repair if your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnect- ing cables ...
March 30, 2006 581 laser road ne • rio rancho, nm 87124 usa • www.Lectrosonics.Com (505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.Com limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship provide...
