Blonder Tongue Catv Modulator Saw Filtering Channel 51

Product Code: eq70243
Availability: In Stock

$449.85 $575.81

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The Blonder Tongue CATV Modulator SAW Filtering Channel 51from Blonder Tongue CATV Modulator SAW Filtering Channel 51is an all-solid-state audio/video modulator that provides a modulated visual and aural RF carrier output on one specific CATV channel. The unit modulates the audio and video inputs and provides the requested RF CATV channel output for use in a CATV, MATV or SMATV system. The modulator accepts standard (sync negative) polarity video at a 0.7-2.5V peak to peak level from sources such as a TV camera, video tape recorder, TV demodulator or satellite receiver.

The modulator features a +55dBmV RF output level, and an IF SAW filtering for adjacent channel operation. All aeronautical channels are offset positive with a tolerance of ±5kHz as required by FCC 21006. All level controls are located on the front panel. The RF level control provides up to +55dBmV output. The video modulator control sets the depth of modulation for 87.5% over an input video level range from 0.7VP/p to 2.5VP/p. An audio modulation control permits adjustment for ±25kHz peak deviation of the aural carrier.

RF Specification
Frequency Range	CATV channel 51
Output Level	55 dBmV, minimum
Output Level Range	15 dB
Audio/Video Carrier Ratio Control	-7 dB to -20 dB
Frequency Tolerance	±10 kHz standard channels, ±5 kHz FCC 21006 offsets
Audio Carrier Frequency Setting	±1 kHz maximum, 4.5 MHz above video carrier
RF to Video Response	1 dB P/V from Fv -0.5 MHz to Fv +4.2 MHz
Broadband Noise	-90 dBc
Spurious Output	-60 dBc in 50 to 860 MHz Range @ +55 dBmV output
Output Match (Return Loss)	12 dBc
Vestigial Sideband Response	@ channel edge -20 dB, @ adjacent channel -40 dB
Video
Input	0.7 to 2.5 V peak to peak for 87.5% modulation
Input Return Loss	18 dB
Carrier-to-Noise Ratio	62 dB in 4 MHz bandwidth
Hum Ratio	60 dB peak to peak video to 60 Hz RMS
Differential Gain	5% at 87.5% modulation
Differential Phase	5° at 87.5% modulation
Group Delay	170 ±50 nS
Audio
Input Impedance	10 kΩ, unbalanced
Input	140 mV RMS for 25 kHz peak deviation
Frequency Response	±1.0 dB (50 Hz - 15 kHz referent to standard 75 msec pre-emphasis)
Intercarrier Stability	4.5 MHz at ±5.0 kHz
General
Power Requirements	105 - 130 VAC, 60 Hz, 10.5 W
Temperature Range	0 to +50°C
Connectors
Audio In	F-type female
Video In	F-type female
RF Output	F-type female
RF Output Test	F-type female -30 dB
AC Outlet	Female AC outlet 600 VA maximum
Mechanical
Line Cord	6' power cable: 3 wire grounded, 3 wire convenience outlet
Dimensions	19 x 1.75 x 3" (48.26 x 4.44 x 7.62 cm)
Weight	4 lb (1.8 kg)

Meets FCC docket 21006 aeronautical frequency offset requirements

Fully compatible with BTSC encoded stereo audio

Front panel accessible level controls for easy set-up and adjustments

AC outlet

Related Questions and Answers

Q: 1. How do you secure the umbrella to the B1? Mine bottoms out or falls out depending on the tilt.

A: Call Profoto Service, there may be an issue with the umbrella clamp

Q: 2. How long is the umbrella when it is closed? Curious if I would be able to travel with it on a plane or put in my luggage?

A: Folded length 35".

Q: 3. Why is the optional diffuser not listed in the accessories?

A: The optional diffuser is discussed within Profoto's description of the umbrella itself. It creates a softer wraparound light but loses a stop or more of light. A good investment. Profoto's gear is superb in quality, construction and performance!

Q: 4. Is this suitable and workable with the B10?

A: This is suitable for a b10.

Q: 5. Would this work with my godox ms300 flash

A: Yes, this Godox White Parabolic Umbrella is compatible with the Godox MS300 monolight.

Q: 6. What is the depth of the Profoto deep Umbrella..from the umbrella center to where the post would intersect the edge?

A: The middle shaft 30 long, when you open it 51 wide and when you close it about 36 long

Q: 7. Does this work with Sigma FP's battery?

A: Yes, it will charge the BP-51 battery.

Q: 8. Will this fit on my b1?

A: Yes

Q: 9. Is the 51 measurement it's actual diameter, or rib length (over the curve)?

A: The actual diameter measurement (across the face opening) is 52

Q: 10. Has anyone used this umbrella with speed light? I plan on using it with Canon 600ex-rt. Hope it will work fine

A: Giorgio, I am using this umbrella with my B1s. They don't have an exposed flash tube and it still works great. Yes, the results are even better when I use my glass dome, but even with the B1s alone I get great light.