فرستنده ویدئو بالن هوای گرم در ارتفاع بالا فرستنده داده

TX900 توصیه.
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?

با تشکر. TX900 is recommended.

مشتری:
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 ساعت ها?

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 (24درجه فاصله اختیاری), please try to source at your side.

مشتری:
This flight will be without tribulation. So we will power on all the equipment right before the flight.

در مورد فرستنده ویدیو, فرکانس های موجود چیست? آیا می توانیم انتخاب کنیم 2.4 GHz as an option or it has to be 1.4GHz or 800MHz?
همچنین, 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. آنتن با توجه به این فرکانس سفارشی شده است.

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?

مشتری:
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:
در مورد کابل RF, our engineer doesn’t recommend that you use so long. کاهش 0.5dB برای کابل RF یک متری وجود خواهد داشت. For the 3-meter RF cable, the signal strength will be reduced by 1.5 دسی بل.

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

در حقیقت, the transmitter is very small, بهتر است فاصله کمی از فرستنده تا آنتن فرستنده حفظ شود. کابل منبع تغذیه فرستنده و کابل اترنت از دوربین به فرستنده می تواند طولانی تر باشد زیرا هیچ تلفاتی مانند کابل RF وجود ندارد..

مشتری:
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, لطفا به تصویر زیر را بررسی کنید.

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.

مشتری:
در آخرین راه اندازی, ما از a استفاده کردیم 1.2 GHz video transmitter to transmit images from ​​the stratosphere to the ground. ما از نتیجه به دست آمده راضی نیستیم و به دنبال فرستنده ویدئویی با مشخصات زیر هستیم: ​​1.2ghz frequency, HD کامل, توان RF بیشتر از 500 مگاوات, وزن کمتر از 100 گرم و مصرف بیش از 500 میلی لیتر نیست.

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.
ما همچنین مدل مشابهی را برای مشاهده و پیش‌بینی آب و هوای اسپانیا توسط بالن‌های هیدروژنی در جو ارائه می‌کنیم., که 150 کیلومتر نیاز دارد.
The above model TX900-5W-50km is recommended.
​Your need: 1.2ghz frequency FULL HD, توان RF بیشتر از 500 مگاوات, وزن کمتر از 100 گرم و مصرف بیش از 500 میلی لیتر نیست.
TX900-5W050km: 1.4Ghz frequency, دوربین HDMI یا اترنت Full HD 1080P, قدرت RF 2 وات, وزن است 142 گرم.

I had a previous client with an application similar to yours. He used a hot air balloon to rise 50 به 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.