Is the audio input expecting a dc or ac signal from a microphone?

everything on your audio video tx is DC. Most AV Tx operate on 12V. Most FPV cameras operate on 12V while a few operate on a range of voltages from 4.6V to 24V. The only thing on an RC system that produces AC is the electronic speed controller, the output to the motor is AC

What is the green nc wire for?

Dear James McCabe , Thanks for your kind asking. Sorry for the late reply because we were on CNY long holiday. The green nc wire for PPM function of the RC radio of the drone. Hope thie can help you. Flysight sales team

Where can I get a wiring harness for this transmitter?

What do you mean? The item includes several wires to meet the needs of the user. The published images depict the meaning of each wire/color

What battery should I use with this? I want to get about ~35 minutes of use, only using a single camera.

It pulls 1 amp at 12v, so that means you would want 3s 1000 mah, in 35 mins you would pull about 600mah/60% of the change out the pack. Lipos do best with using 80 to 85% max of the packs compacity so that would be idea. If you ran a 6s 1000mah you could safely get 80 to 85 mins burning 85% of the pack. Remember a 2w transmitter is gonna make mad amounts of heat and moving air is a must, this unit in a static environment at 2 watts/2000mw is gonna be a issue evenc with the built in fan. If you use will be in a static environment then you will deff want to place a fan blowing on it or you will no doubt have heat problems. I would simply run a 3s 2200mah pack and know that up to 100 minutes of so is absolutely gonna be safe on the pack.

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Black Mamba FPV VTX 5.8GHz 6V-28V, 40CH 2000mW FPV Transmitter for Long-Distance Transmission 8 to 9km (TX5820 V2-SMA)

Product ID: 296527460

Details

Age range (description)
Adult Young
Brand
Flysight
Colour
Black
Model name
Mamba
Special features
Long-distance

🌐40 channels for interference-free signal

📡2000mW ultra-power output

🚀8-9km long-distance transmission

€ 243.26

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Description

🚁 Elevate your FPV game—see farther, fly smarter, and never miss a moment!

EPIC RANGE - Push your drone boundaries with an impressive 8 to 9 km transmission range—explore farther than ever.
CHANNEL MASTERY - Choose from 40 channels to dodge interference and dominate the skies with seamless connectivity.
COMPACT DURABLE - Engineered with premium materials in a sleek, compact design that fits perfectly in your FPV setup.
UNMATCHED POWER BOOST - Blast your FPV feed with a massive 2000mW output for crystal-clear, lag-free visuals.
PLUG PLAY CONFIDENCE - Comes with everything you need in proper packaging—get airborne quickly and reliably.

The Black Mamba FPV VTX TX5820 V2-SMA is a high-performance 5.8GHz video transmitter delivering 2000mW power across 40 channels, enabling long-distance FPV transmission up to 9 kilometers. Designed for advanced users, its compact and durable build ensures reliable, interference-free video feed for professional-grade drone flying.

Specifications

ASIN	B01L1OFDGO
Age Range Description	Adult, Young Adult
Are batteries included?	No
Battery Cell Composition	Alkaline
Best Sellers Rank	#212,338 in Toys ( See Top 100 in Toys ) #373 in Remote- & App-Controlled Drones
Brand Name	Flysight
Color	Black
Connectivity Technology	5.8Ghz FPV Video Transmitter
Control Type	Remote Control
Customer Reviews	4.2 4.2 out of 5 stars (85)
Included Components	Transmitter, User manual, Battery, Propellers
Includes Rechargeable Battery	No
Includes Remote?	No
Item Dimensions L x W x H	5.5L x 3.5W x 2.7H centimeters
Item Weight	52 Grams
Manufacturer	Shenzhen G-VISION Technology Co.,Ltd
Material	Plastic
Maximum Range	9000 Meters
Media Type	MP4
Model Name	Mamba
Model Number	TX5820 V2 SMA
Number of Items	1
Optical Sensor Technology	CMOS
Part Number	TX5820V2
Skill Level	Advanced
Special Features	Long-distance transmission and high power output
Video Capture Format	MP4
Wireless Communication Technology	5.8Ghz FPV Video Transmitter

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€ 243.26

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Received my product in pristine condition. Great service overall.

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