Hobbyking 500mw telemetry 433/915

Hobbyking has done it again and have gone that step further.

500mw telemetry modules for amp/px4 and pixhawk is a reality.

Features:
• Interchangeable air and ground 433MHz modules
• Micro-USB port
• 6-position Molex connector
• 500 mW maximum output power (adjustable)
• -117 dBm receive sensitivity
• SMA connector
• 2-way full-duplex communication through adaptive TDM
• UART interface
• Transparent serial link
• MAVLink protocol framing
• Frequency Hopping Spread Spectrum (FHSS)
• Configurable duty cycle
• Error correction corrects up to 25% of bit errors
• Open-source SIK firmware
• Configurable through *Mission Planner and *APM Planner

Specs:
Supply voltage: 3.7-6 VDC (from USB or Molex connector)
Transmit current: 500 mA at 27 dBm
Receive current: 25 mA
Serial interface: 3.3 V UART

Included
Two radio modules with antennas
Micro-USB cable
Android OTG adapter cable
6-wire Pixhawk connector cable
6-to-5-position APM and PX4 connector cable
Self-adhesive patch

Interesting. I've felt the same way about the various 'claimed more power' telemetry units, and lack of data about them has stopped me from buying - we all know how the market works: claim same product is a new product, sell more/ make the sales target etc. I'm experiencing the same feeling with the Xiaomi Yi camera right now too - lot's of people claiming it has USB/AV-out functionality on the forums, yet no actual test or footage is available. It's like the hype & hysteria machine working overtime is it not?

I would really really really be happy if these telemetry units are tried, true, and genuinely functional though. I'd buy them for sure if they have greatly improved range over the standard ones. Same with the Xiaomi Yi camera, as soon as I know it has AV-out I'll buy it.

I hope to sound positive and encouraging. Perhaps one of the many APM community members will do a side-by-side comparison range test video?

https://www.youtube.com/watch?v=ZshNHCKiVa0

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Comments

March 27, 2015 at 1:22am

Hi. Someone (skelator) on the HK product page claims that this modem is based on the following RF module:

http://www.dorji.com/docs/data/DRF4431F27_DRF4432F27.pdf

Similar to the older Si4431, but with higher output power (27dB/500mW).

http://www.dorji.com/docs/data/DRF4431F27_DRF4432F27.pdf
UAS_Pilot March 25, 2015 at 9:00am

Here is the mini OSD/Telemetry modem from HK.

http://www.hobbyking.com/hobbyking/store/__74651__Micro_HKPilot_Tel...
Brian March 25, 2015 at 8:57am

I ordered a set from ReadyToFlyQuads, which has the unknown module on it. I also emailed HopeRf with a link to the picture, asking if this really is a 500mW HM-TRP, and they replied that it is not their module, and a 500mW HM-TRP does not exist.

It looks like some of the models probably have a HM-TRP with an external PA, but the RTFQ model appears to be a module with the PA built in. If that is the case, I'm curious where the module came from, and they shouldn't be advertising it as an HM-TRP.

I would love to see pictures of the internals of any of these units of anyone has ordered them from other places.
benbojangles March 24, 2015 at 11:08pm

I have one of these antenna but am yet to try it (I probably should):

(PCB Yagi)

I also have the stock cheapie antenna the telemetry came with, and these too (perhaps it's time for me to perform a range test experiement):
Jonathan Hair March 24, 2015 at 11:40am

http://www.readymaderc.com/store/index.php?main_page=product_info&a...

I have used this antenna with good results.
Brian March 24, 2015 at 8:05am

The module sure looks like a hope-rf module. It looks about the same shape/size and has the same layout, and It looks like they've added a transistor/FET for amplification. But why is there no information about the module on the hope-rf website?

@benbojangles, theoretically these units should have about twice the range of the 100mW units, so don't expect miracles. Range also depends on a wide range of factors, including antenna, obstructions, etc.
March 24, 2015 at 5:21am

Hi. I am also wondering what is inside... Could this modem use a YS-C20L module ?
Christiaan van Vollenstee March 23, 2015 at 11:29pm

I have ordered one and I have a measuring device to measure the mw output power and I will confirm once I have it and it is measured.
100KM

Hein du Plessis March 23, 2015 at 10:21pm

@Dwgsparky Good question! @Nabil Aldhaleai I've been flying with HK and other versions of the radios for years, no problems ever.

This is just as exciting: OSD + Telem in one! http://www.hobbyking.com/hobbyking/store/__74651__Micro_HKPilot_Tel...
benbojangles March 23, 2015 at 7:33pm

Interesting. I've felt the same way about the various 'claimed more power' telemetry units, and lack of data about them has stopped me from buying - we all know how the market works: claim same product is a new product, sell more/ make the sales target etc. I'm experiencing the same feeling with the Xiaomi Yi camera right now too - lot's of people claiming it has USB/AV-out functionality on the forums, yet no actual test or footage is available. It's like the hype & hysteria machine working overtime is it not?

I would really really really be happy if these telemetry units are tried, true, and genuinely functional though. I'd buy them for sure if they have greatly improved range over the standard ones. Same with the Xiaomi Yi camera, as soon as I know it has AV-out I'll buy it.

I hope to sound positive and encouraging. Perhaps one of the many APM community members will do a side-by-side comparison range test video?

https://www.youtube.com/watch?v=ZshNHCKiVa0

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