Altitude kub cua zais pa yees duab transmitter cov ntaub ntawv transceiver

TX900 pom zoo kom pom zoo.
We also have a buyer from European clients to use this model.
They do space weather monitoring, they need wireless video transmission equipment to monitor their equipment and download data.
The person also can upload the control command for some experiment types of equipment from the ground receiver to the balloon.
The bandwidth is 20mbps, is that ok for you?

Tsaug. TX900 is recommended.

Nyob hauv kev pab:
Do you have a datasheet? Could you send me the antennas that work with this video transceiver? Do you have any compatible camera? How many cameras can we use with just one transceiver? Do you have a battery system or power system for the transceiver? Our flight will be 6 hours approx. Do you have batteries that will long 6 teev?

iVcan: Our battery is 7AH, normally we tested time is 2~4 hours, no problem. If you buy a 15AH battery, it should support 4~8 hours. Please check the attached picture.
The 10W PA transmitter and receiver need 3A@28V (24£30V), please try to source at your side.

Nyob hauv kev pab:
This flight will be without tribulation. So we will power on all the equipment right before the flight.

Hais txog cov yees duab transmitter, cov zauv muaj tsawg zaus? Peb yuav xaiv 2.4 GHz as an option or it has to be 1.4GHz or 800MHz?
Kuj, do you provide RF cable from the video transmitter to the antennas?

iVcan:
1. There are three frequencies to choose from. If you choose 2.4G, then we will arrange the 2.4G Power Amplifier inside and the 2.4G transmitter and receiver antenna. So you should confirm which frequency you need before delivery. Tus antenna yog customized raws li no zaus.

2. We can offer you the RF cable from the transmitter to the antenna, how long do you need it for? It will be easy to have interfered if the cable is too long. So how long do you really need it for the best installation?

Nyob hauv kev pab:
That would be perfect. I guess that sweeping the frequency to 2.4GHz will not affect the link budget and we still have 10W and 150Km coberture range?
Regarding RF cable we will need about 3m cable because we will put the video transmitter in the middle of the capsule and this has a 2.5m radius so 3m approx.

iVcan:
Hais txog cov RF cable, our engineer doesn’t recommend that you use so long. Yuav muaj ib tug txo 0.5dB rau ib meter RF cable. For the 3-meter RF cable, the signal strength will be reduced by 1.5 dB.

In order to support long-distance at 150km, Can you use an RF cable that is less than 1 ' meter '?

Qhov tseeb, the transmitter is very small, Nws zoo kom ib me ntsis nyob deb li cas ntawm tus transmitter rau tus transmitter antenna. Lub hwj huam mov cable rau lub transmitter thiab ethernet cable ntawm lub koob yees duab rau lub transmitter yuav ntev li muaj tsis losses xws li RF cable.

Nyob hauv kev pab:
I will check with the structure team that we need to put the video transmitter as close to the antenna as possible and get back to you with the RF cable length.

The system team asked me about the attachment system for the S transmitter that will be inside the capsule. Do you have any mounting brackets or recommendations? Ideally, the video transmitter will be placed inside a rack.

iVcan:
Regarding how to install it, thov mus saib rau hauv qab daim duab.

There are four screws hole in the metal box, above the picture red arrow. It also can be bound by some cables like the one below.

Nyob hauv kev pab:
Nyob rau hauv lub xeem tso, Peb siv ib tug 1.2 GHz video transmitter to transmit images from ​​the stratosphere to the ground. Peb yuav tsis txaus siab rau qhov tshwm sim tiav thiab peb tab tom nrhiav ib tug yees duab transmitter nrog cov cim raws li cov cim: ​​1.2ghz frequency, DAIM NTAWV QHIA TXOG HD, RF fais fab ntau dua 500mw, Luj tsawg tshaj 100gr thiab noj tsis tshaj 500ma.

iVcan:
May I know what is the distance from the ​stratosphere to the ground?
From the internet, I get that the distance is from 8km to 50km.
Peb kuj muaj ib tug qauv zoo sib xws rau Spain huab cua soj ntsuam thiab prediction los hydrogen Balloons hauv lub Cua, uas xav tau 150km.
The above model TX900-5W-50km is recommended.
​Your need: 1.2ghz frequency FULL HD, RF fais fab ntau dua 500mw, Luj tsawg tshaj 100gr thiab noj tsis tshaj 500ma.
TX900-5W050km: 1.4Ghz frequency, Daim ntawv qhia txog HD 1080P HDMI los yog ethernet koob yees duab, RF fais fab tuag 2 watts, luj yog luj 142 grams.

I had a previous client with an application similar to yours. He used a hot air balloon to rise 50 mus 80 kilometers above the ground to monitor the environment. He just bought our long-distance wireless video transmitter and receiver to monitor whether the scientific instruments in the balloon are normal.