User's Manual

not to be used for a long period as the transmitters draw a tiny residual current to maintain the
programmed settings, even when turned o. Also, since batteries installed for a long time can
sometimes corrode and/or leak, causing damage, it is generally recommended that batteries
be removed whenever the transmitters are not being used.
•When using the bodypack for instrument use: Scratchy noises can sometimes occur when an
electric guitar with dirty pots or connections is used with a wireless system. Therefore, the
supplied capacitor provides rst-order ltering of the RF signal from the cord into the guitar
and eliminates virtually all scratchy noises. Should your equipment still produce scratchy noise,
we suggest these steps to eliminate problems:
32. Make sure all guitar volume and tone pots are clean and all contacts are solid. This is very
important.
33. Solder a 47pF capacitor across the pot to ground terminal of the guitar’s volume and tone
pots to provide extra ltering.
SPECIFICATIONS
Overall System Performance
Operating Frequency range: (A) 480-504.75MHz and (B) 505-529.75MHz
Freq. Synthesized: PLL (100 channels selectable) 250 kHz/step
Pll system frequency stability: <0.005%
Frequency response: 50Hz-18kHz +/-3dB
Dynamic range: 120dB
Harmonic Distortion: <0.5%
Modulation: FM (F3E) +/-25kHz normal, +/-75kHz max
Operating range: 150-250 feet typical, 500+feet max line-of-sight
U-1100/2100 Series receiver
Receiver System: Dual conversion Super Heterodyne
Selectivity: 60dB, normal +/-75 kHz oset
Image rejection: -70dB, minimum Sensitivity, -107dBm, normal Spurious rejection
65dB, normal
Mute Threshold: Adjustable (-65dBm to -95dBm)
Controls: GROUP/CHANNEL/AUTOSCAN, IR ASC Sync buttons, Power ON/
OFF, Switch, MUTE level pot, VOLUME level pot
LCD/LED Display: Two Digits LCD panel indicating selected Channel; RF/AF bar
graph indicator, Battery levels, TX Channel A and B LED indicators
Audio Outputs: LINE OUT UNBALANCED, adjustable line audio output; MIC OUT
BALANCED, xed mic level audio output
Output Impedance: Unbalanced, 1k Ω and Balanced; for 600 Ω loads
Power requirement: 13.5VDC/0.4A
Antennas: Dual removable swivel BNCantenna
Dimensions: 8”W x 6”D x 1.25”H (20.4cm x 15.3cm x 3.2cm)
Weight: U-1100 17.9oz (556.8g)/U-2100 15.1oz (469.7g)
Housing Construction: ABS Plastic
U-1100HT Handheld Transmitter
RF Output power: +14dBm (25mW typical)/50Ω
Harmonic/Spurious emission: -50dBc normal
Input Impedance: 10kΩ
Controls: Power OFF/ON, MUTE
LCD/LED Display: Channel/Frequency, BATT status, Mute LED
Antenna Type: Integral
Battery Type: 2 x AA alkaline or NiMH
Battery life: 8-10 hours typical, alkaline
Dimensions: 9.5”L x 1.5”D (24.1cm x 5.1cm)
Weight (w/o batteries): 10.4 oz (323.5g)
Housing Construction: ABS Plastic
U-1100LT Bodypack Transmitter
14