N6 Frequency - 645.750 MHz, UM1 Camera-Mounted Receiver

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The UM1/77 Videographer Combo Pack Wireless System from Samson is designed to provide commercial videographers, and corporate and broadcast video professionals with both handheld and hands-free wireless miking options. It includes the camera-mountable UM1 wireless Micro receiver, the CT7 beltpack transmitter with an LM5 omnidirectional lavalier mic, an HT7 handheld transmitter with a Q7 supercardioid capsule, a mini-XLR to XLR cable, a 1/8" TRS cable, a stand clip, a hook-and-loop fastener mounting strip, and a foam-lined hardshell carry case. The combo pack is tuned to Samson's N6 frequency band and operates on 645.750 MHz.

The UM1 receiver features true diversity reception and has a balanced mini-XLR and an unbalanced 1/8" TRS output that can be switched between mic and line level for connecting to a variety of recording destinations. Both the CT7 beltpack transmitter and the HT7 handheld have separate on/off and mute switches in addition to variable gain control. The system operates within a 300-foot line-of-sight range and allows you to select the appropriate transmitter for a given application.

Key Features

  • Battery-operated UM1 True Diversity Micro Receiver
  • Balanced mini-XLR and unbalanced 3.5mm TRS output with mic/line switch
  • DC input for external powering (6-13 volt)
  • Variable squelch, power switch, RF & battery metre
  • 3.5mm headphone output with level control.
  • Includes beltpack transmitter with LM5 omnidirectional lavalier and handheld transmitter with Q7 mic capsule
  • Includes XLR to mini-XLR and 1/8" to 1/8" TRS audio cables
  • 300-foot operating range


Frequency Response
50 Hz to 15 kHz (+/- 3 dB overall)
Receiving Frequency
645.750 MHz
Sensitivity: 17 dBμv ±4 dB
1 % Maximum (@AF 1 kHz, RF 56 dBuv), overall
Dimensions (W x D x H)
2.6 x 1 x 4.25" (65.8 x 26 x 107 mm)
Frequency Response
50 Hz to 16 kHz
-54 dB
200 Ω
Maximum SPL
150 dB
3-pin gold-plated balanced male XLR
Dimensions (Ø x L)
2.09 x 6.09" (53 x 180 mm)
13 oz (368 g)
Frequency Response
50 Hz to 15 kHz (± 3.5 dB)
Current Consumption
7 mA typical
Battery Life
12 hours (9 V battery)
RF Output Power
-4 dB Minimum, 3 dB Maximum (5 mW)
Frequency Stability
+/- 20 kHz
Dimensions (W x D x H)
2.6 x 0.92 x 4" (66.15 x 23.4 x 102.5 mm)
Q7 Capsule: Dynamic
Frequency Response
Q7 Capsule: 80 Hz to 12 kHz
Polar Pattern
Q7 Capsule: Supercardioid
LM5: Omnidirectional
Output Impedance
Q7 Capsule: 200 Ω
Q7 Capsule: -54 dBV/Pa (2.2 mV/Pa)
Samson UM1/77 Videographer Combo Pack Wireless System (N6 Frequency)
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