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Blonder Tongue Catv Channelized Audio/video Modulator With Saw Filtering (channel 74)

Blonder Tongue Catv Channelized Audio/video Modulator With Saw Filtering (channel 74)
  • Product Code: ga22926
  • Availability: In Stock

$380.85 $533.19

The CATV Channelized Audio/Video Modulator, Channel 74, from Blonder Tongue is 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 RangeCATV channel 74
Output Level55 dBmV, minimum
Output Level Range15 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 Response1 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
Input0.7 to 2.5 V peak to peak for 87.5% modulation
Input Return Loss18 dB
Carrier-to-Noise Ratio62 dB in 4 MHz bandwidth
Hum Ratio60 dB peak to peak video to 60 Hz RMS
Differential Gain5% at 87.5% modulation
Differential Phase5° at 87.5% modulation
Group Delay170 ±50 nS
Audio
Input Impedance10 kΩ, unbalanced
Input140 mV RMS for 25 kHz peak deviation
Frequency Response±1.0 dB (50 Hz - 15 kHz referent to standard 75 msec pre-emphasis)
Intercarrier Stability4.5 MHz at ±5.0 kHz
General
Power Requirements105 - 130 VAC, 60 Hz, 10.5 W
Temperature Range0 to +50°C
Connectors
Audio InF-type female
Video InF-type female
RF OutputF-type female
RF Output TestF-type female -30 dB
AC OutletFemale AC outlet 600 VA maximum
Mechanical
Line Cord6' power cable: 3 wire grounded, 3 wire convenience outlet
Dimensions19 x 1.75 x 3" (48.26 x 4.44 x 7.62 cm)
Weight4 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 adjust the amps so you get good signal, but produce less heat?

A: This unit does give you the ability to adjust the gain and slope to the proper settings for your situation. Blonder Tongue also sells optional plug-in fixed attenuator and equalizers for input signal conditioning, which you can purchase from them: http://bit.ly/1iV8xC4

Q: 2. unlock code?

A: Please call Zv Technical Support at 877-493-3833 or email them at support@zeevee.com. They can help you out with the unlock code. Thanks

Q: 3. Will this accommodate the 95mm filters?

A: The lens hood, HB-74 is for the new Nikon 24-70mm f/2.8E VR lens. That lens uses an 82mm filter. So the hood will work with most 82mm filters not 95mm.

Q: 4. which norm handles? pal-B/G pal-N or NTSC? thanks.

A: The Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering SAW is NTSC only.

Q: 5. Is it compatible with current digital transmission standards? Can it transmit HD video?

A: The Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering meets FCC docket 21006 aeronautical frequency offset requirements and is fully compatible with BTSC encoded stereo audio.

Q: 6. Is this a single channel input box?

A: Yes, Single input single output

Q: 7. Which year produce this model?

A: Roland released this product in 2018.

Q: 8. Can I use the HPC-12 to combine in-ear monitor transmitters into one antenna?

A: So that we may best assist you, please email us at provideo@bhphoto.com.

Q: 9. can this tool be used for crimping BNC CABLE?

A: Eclipse Tools Compression Crimper for CATV F Connectors are capable of crimping BNC connectors.

Q: 10. i want to terminate 21 tv rg6u cables to two splitters in my residence will a cable tronics cta-35 /1000 pr amphlifer help ?

A: No, the CableTronix CTA-35/1000PR CATV Distribution Amplifier will not work for your needs. Based on your request you will need the CableTronix CT-BDA24 for this installation. CableTronix CT-BDA24 1 GHz Single Input/Output Multimedia Drop Amplifier with Adjustable Gain Control and Switchable FM Trap BH #CACTBDA24

22/09/2024

Had a 60 cycle hum in my audio/video system and narrowed It down to the Blu-Ray player and cable box were causing a ground loop. Installed the Jensen ISO-Max VRD-1FF on the cable line before the box and it worked - no more hum. Much thanks to Jensen and B&H.

5
28/08/2024

The transformer worked perfectly. The low frequency hum from the TV was gone once it was installed. Make sure to follow the installation guidelines on the website - especially trimming the center conductor on the CATV coax cables. NOTE: There were no instructions included with the shipment even though the label on the transformer box seemed to imply there would be.

5
08/08/2024

Speaker hum gone instantly.

5
23/07/2024

I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues with performance but the box label instructed to read instruction which were not in the box. So I went to their website and read it.

5
17/07/2024

I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues.

5
02/07/2024

What can you say? No more hummmmmm.

5
05/06/2024

We got a new cable box for the home theatre and with it a ground loop hum. This filter worked perfectly to get rid of the hum and did not interfere with the digital cable programming

5
29/05/2024

Expensive but knocked out the hum coming from my cable.

5
21/05/2024

Nice product nice service!!!

5
04/05/2024

This is the second VRD-1FF I've bought. The first one lasted 9 years, but this spring our house was hit by lightning. The old VRD-1FF started adding 6dB signal loss, so I figured the lightning hurt it. Just like the original, the new VRD-1FF has eliminated the ground loop hum that was on our incoming CATV Cable

5

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