Blonder Tongue Catv Modulator Saw Filter Channel 25

Product Code: eq70290
Availability: In Stock

$449.85 $553.32

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Description
Reviews (3)

The Blonder Tongue CATV Modulator SAW Filter Channel 25from Blonder Tongue CATV Modulator SAW Filter Channel 25is 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 25
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)
Packaging Info
Package Weight	4.7 lb
Box Dimensions (LxWxH)	21.4 x 5.8 x 3.3"

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. Can I use this extension tube on my Panasonic GH3?

A: Unfortunately, the Olympus EX-25 Extension Tube is not compatible with the Panasonic GH3. The GH3 has the micro four thirds mount, while the EX-25 has the four thirds mount, which are different mounts. For the GH3, you could use any of the extension tubes for micro four thirds cameras on the following link. http://bhpho.to/1cqhXir

Q: 2. Does the composite video output have captioning embedded?

A: The Thor QAM CATV RF and ATSC RF to HDMI Decoder Set-Top Box support Teletext and DVB subtitles for captioning on the outputs.

Q: 3. Does the Panasonic DMW-TC20 2x Teleconverter work with this lens. Will it retain all the electrical communication between the body and the lens if the tele-converter is used? How many stops are lost if using this tele converter with this lens

A: No, Panasonic DMW-TC20 2x Teleconverter is not compatible with Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens. The Panasonic DMW-TC20 2x Teleconverter is specifically designed for and dedicated for use only on the Panasonic Leica DG Elmarit 200mm f/2.8 POWER O.I.S. Lens, B&H # PA20028LDG. Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. The lens is not designed to mount a teleconverter due to the flat optics on the back of the lens to preserve the weather seal condition.

Q: 4. Is the aputure dial clickless?

A: The Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens' aperture ring is stepless.

Q: 5. I want to keep this lens permanently attached to my G9 II. Will it require support to relieve stress at the lens mount?

A: No, the Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens can be left on the camera for extensive periods of time without any need to alleviate the mount.

Q: 6. New to the DSLR/Mirrorless world and just bought the G5 II with this lens. Does this lens work with auto focus?

A: Yes, the Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens is an autofocus lens.

Q: 7. What is the diameter of the cable?

A: 10mm

Q: 8. Can residential input coaxial cables (TV, weather station, etc) convert directly to RJ45/RJ11 connector for indoor weather station console? VideoEase CATV Balun II appears to do this. Thank you...

A: Yes, you are able to use your standard coax cable and convert the signal to RJ-45.

Q: 9. I'd like to use this lens with a Smallrig Mini Follow Focus. What gear ring fits? Note: My preference would be something that mounts snug and semi-permanently, something that will survive storage in a bag with no rigging or fiddling on location.

A: Unfortunately, The Panasonic Leica DG Vario-Summilux 25-50mm f/1.7 ASPH. Lens this lens model has not been tested yet. I recommend Tilta seamless rings. https://bhpho.to/3SW7iEA Please use the following ruler to measure the lens. https://bit.ly/3Aqanpb

Q: 10. would this device be able to display unencrypted catv digital signals? we use them at our business from a blonder tonue encoder.

A: The Thor QAM CATV RF and ATSC RF to HDMI Decoder Set-Top Box is designed to decode ATSC and QAM Signals.

John	07/08/2024
[15 dB] 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

Steven	04/08/2024
[CATV channel 25] I was getting hum from my REL T9 subwoofer. REL customer service helped me track down the cause to electrical noise originating from my coax Xfinity cable connection and flowing through my cable box and my AV receiver and out to my subwoofer. After adding this ground isolator the hum immediately disappeared. 5