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Description
Blonder Tongue MDDM-860 Micro ATSC/QAM to NTSC Audio Video Demodulator and DecoderThe MDDM 860 Micro ATSC QAM to NTSC Audio Video Demodulator and Decoder by Blonder Tongue receives one input signal in ATSC 8VSB (digital off air) or QAM (digital cable) format and delivers one NTSC composite analog video and stereo audio output. The unit allows you to view a digital off air program on an analog TV set. Headends processing analog broadcasts using Blonder Tongue's MIDM demodulators and MICM modulators can be upgraded to process digital
The MDDM-860 Micro ATSC/QAM to NTSC Audio Video Demodulator and Decoder by Blonder Tongue receives one input signal in ATSC 8VSB (digital off-air) or QAM (digital cable) format and delivers one NTSC composite analog video and stereo audio output. The unit allows you to view a digital off-air program on an analog TV set. Headends processing analog broadcasts using Blonder Tongue's MIDM demodulators and MICM modulators can be upgraded to process digital broadcasts by replacing the MIDM with a MDDM.
The unit features a front panel custom mini USB to RS232 interface connector for program control. The front panel provides up and down control channel selection and a two digit display to identify the program channel as well as a 1 digit RF channel display to indicate the frequency/channel plan.
- Compact design allows for deployment of 6 channels (6 MDDM modules + 6 MICM modulators) in 2RU
- NTSC composite analog video output is in 480i format and supports closed captioning (EIA-608)
- Input standards supported are digital off-air (8VSB) and digital cable (ITU-B QAM 64 and 256)
- Scans all 8VSB or QAM channels and stores in memory for quick channel selection
- Demodulates HDTV/SDTV digital signals to NTSC video and analog L/R audio
- On-site firmware updates/status monitoring available through front-panel
- Die-cast chassis offers protection against ingress or egress
- Adjustable picture sizes for 16:9 to 4:3 image conversion
- Supports mono, stereo, and SAP audio modes
In the Box
Blonder Tongue MDDM-860 Micro ATSC/QAM to NTSC Audio Video Demodulator and Decoder
- Limited 1-Year Warranty
| Input | |
|---|---|
| Connector | "F" female |
| Standards | 8VSB: ATSC Digital Television Standard, A/53E QAM: ITU-T J.83 (64 and 256 QAM) |
| 8VSB Mode | Tuning Range: UHF (NTSC channels 14-78), VHF (NTSC channels 2-13) Symbol Rate: 10.762 Msymbols/sec Bandwidth: 6 MHz |
| QAM Mode | Tuning Range: CATV (NTSC channels 2-135) Symbol Rate: 5.3606 Msymbols/sec (QAM 256); 5.057 Msymbols/sec (QAM 64) - auto detect Bandwidth: 6 MHz |
| Single Channel Power Level | -32 to +45 dBmV |
| 8VSB Power Level | -20 to +30 dBmV |
| QAM Power Level | -20 to +20 dBmV |
| Return Loss | 12 dB |
| Impedance | 75 ? |
| Output | |
|---|---|
| Connector | Video: "F" female Audio: RCA; left & right |
| NTSC Composite Video | Level: 1 V peak-to-peak Flatness: 1.0 dB p/v (30 Hz - 4.2 MHz) Video to Noise Ratio: 70 dB Differential Gain: �0.75% Differential Phase: �0.50 degree Format: 480i Aspect Ratio: AFD, center cut, letterbox, full, zoom 1, zoom 2 Closed Captioning: EIA-608 |
| Analog Audio | Level: 1.0 - 1.2 V peak-to-peak (at -20 dBFs input), 10.0 - 10.5 V peak-to-peak (at 0 dBFs input) Frequency Response: 2.0 dB p/v (30 Hz - 20 kHz) Audio Signal-to-Noise Ratio: 67 dB (at -20 dBFs input) |
| Modes | Stereo, mono, SAP |
| Alarms/Monitoring/Control | |
|---|---|
| Front Panel Indicators | Major program channel (2 digit LED display) Minor program channel (1 digit LED display) Channel scan (2 & 1 digit LED displays) +100 Channel (red LED) SNR (2- & 1-digit LED displays) QAM LED (red LED) No Lock (flashing QAM LED) Picture size (2 & 1 digit LED displays) Audio mode (2 & 1 digit LED displays) Firmware revision (2 digit LED display) Software revision (2 & 1 digit LED displays) Unit reset (2 & 1 digit LED displays) |
| Front Panel Control | CH UP/DN push-buttons (increment major or minor channel up/down) ENT push-button (enters or confirms selection) SCAN push & hold-button (initiates channel scan) PIC SIZE push-button (adjusts picture size/aspect ratio) AUD MODE push-button (adjusts audio mode and closed captioning) SNR push-button (measures input signal-to-noise ratio) QAM/8VSB push & hold-button (toggles between QAM & 8VSB) ENT & SNR simultaneously (stops scan at anytime) PIC SIZE & AUD MODE simultaneously (unit reset) PROG MON (custom mini USB-to-RS232 interface for control & monitoring) |
| General | |
|---|---|
| Power | 110 VAC, 60 Hz or 220 VAC, 50 Hz |
| Power Dissipation | 7 W (per MDDM module) |
| Operating Temperature | 32 to 122�F (0 to 50�C) |
| Storage Temperature | -13 to 158�F (-25 to 70�C) |
| Operating Humidity | 0 to 95% RH @ 35�C max, non-condensation |
| Storage Humidity | 0 to 95% RH @ 35�C max, non-condensation |
| Dimensions (W x D x H) | 1.15 x 7.50 x 3.50" (2.92 x 19.05 x 8.89 cm) |
| Weight | 0.8 lb (0.36 kg) |
| Packaging Info | |
|---|---|
| Package Weight | 0.9 lb |
| Box Dimensions (LxWxH) | 10.472 x 4.252 x 1.339" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 975 reviews
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Product Reviews
★★★★★ 5
Compact & soft cap
Color: Dark Navy, Size: One Size
Great fall/winter hat if you’re looking for something that’s not too bulky. I wanted for a winter hat that I could just keep in my inside pocket of my winter jacket - problem was the pocket was not very big. I had another knit cap that just did not fit in there. The Danish Endurance beanie fits the bill! Being so thin, it is not my warmest beanie – but gets the job done! It also feels so soft. I bought another in a different color!
The hat arrived with a few creases in it. You could steam it, but don’t really notice any wrinkles when you put it on. I wish they made it in a darker gray/charcoal.
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Reviewed in the United States on January 26, 2026
★★★★★ 4
Soft but flimsy
Color: Dark Navy, Size: One Size
Its soft and warmth is ok, but it feels very thin and a bit flimsy. The knit at the top looks particulary fragile. I think for the price this is still ok value but I do not expected it to last a long time.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Cozy hat
Color: Light Grey Melange, Size: One Size
The hat is thin but it does keep my head warm.
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Reviewed in the United States on April 30, 2026
★★★★★ 1
Cashmere but far too thin
Color: Dark Navy, Size: One Size, Color: Dark Navy, Size: One Size
The beanie feels soft and genuinely made of cashmere, but the fabric is surprisingly thin — almost transparent when held to the light. It lacks the warmth and structure you’d normally expect from a cashmere item.
The design and packaging are pleasant, but the overall impression is disappointing. It’s comfortable to touch yet too delicate to provide real protection against the cold.
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Reviewed in the United States on October 16, 2025
★★★★★ 5
Cool hat.
Color: Dark Navy, Size: One Size
This is a nice little hat. Even though it’s really thin, it does seem to keep my head warm. Really haven’t tried it out in the wind yet. But saying that you could put another hat on top of it.
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Reviewed in the United States on January 20, 2026