Review: Hitec Spectra AFHSS 2.4GHz receiver and module (part 3)

[1Fubar2Dilligaf]

I appreciate your reviews because they're very informative and not to mention you just helped my decision on choosing the hitec over the spektrum system. To hell with RCgroups and thank you very much...

[AltechMYOB]

hmm... that IS interesting. Don't know if I'll ever need it, but nice to know - tnx Bruce.

[bradp455]

hi bruce!

one thing id love to know is, if after you 've forced the coverage to widen in scan mode, using the vid tx, if then you switched back to normal mode, would the tx module revert back to the much narrower use of the 2.4 band?, or would it stay wider like it was left in the scan mode??

great reviews bruce! thanks

[kargidesign]

Sir, I wished you mentioned: In scan mode it doesn't bind again ever if the power to rx cut more than a few seconds, unlike normal mode. So even if you didn't crash your plane in 2 seconds (definitively not for heli), you are not so lucky, because hitec won't bind again if your are in scan mode. You need to reset the tx.

I watched in the finless bob's videos, I don't have a hitec module, although I want an aurora 9 bad.

[RiverPhil9]

Bruce, After scanning, will the transmitter stay on a bad or noisy frequency that comes on later, or will it always hop away to a better frequency? Sounds pretty common that something will change at the field after you have started to fly, with someone else showing up and turning on new electronics.

[RCModelReviews]

@RiverPhil9 Yes, once you've scanned the band, the radio will stick with the frequencies it found to be quietest, even if the noise profile of the band subsequently changes. The scan mode is however, useful in environments where there may be a fixed source of potential interference (such as a WiFi link) that you wish to avoid. Most people will likely just use "normal" mode unless they detect an issue and then use "scan" mode once to allow the radio to pick better frequencies.

[sloperdude]

I believe Hitec is responding to the A9's partial use of the 2.4 GHz radio band in a future update (1.8.) If I find the info again I'll post a link.

Thanks, Bruce, for providing such a valuable resource!

[vickishortland]

Ive had problems with RCgroups too. Not that good of a place!

[beaker2000]

Just got my Aurora 9 today. Here is an excerpt from the manual that explains why it selects frequencies the way it does:

"When your system is being used in a crowded 2.4GHZ condition, any system could be sluggish because of heavy frequency traffic. In sush cases we recommend you to switch the system to Scan Mode to scan the less frequency traffic section among 2.4GHZ bandwidth. Once scan is done, switch back to normal mode for quicker boot-up and use."

[bingobongo17]

Is this module and receiver up for grabs?

[xjet]

@bingobongo17 It depends on what Hitec send me for the Aurora 9 review. If they include another module/receiver then yes, this will go up in a prize-draw. If they just send the bare transmitter then I'll hang onto the module and put it all up together.

[sergiole123456]

Good job! Thanks friend.

I Have one radio Aurora9 it this AFHSS 2.4 Ghz module. Good radio!

Sérgio S. ( Portugal).

[craig2220]

Great review! I have just bought this system and your review has helped me to understand the system to maximize its performance. I will be replacing my JR 9303 2.4 with the Aurora.

Can you tell me would you use the system in normal or scan mode? Or would you boot up in Sca mode switch to normal then cycle the power and back on again.

[rcflyer555]

That's just what I was hoping. Thanks for the quick reply. Keep up the great work. I subscribed and have been faithfully reading your website. Two thumbs up!

[rcflyer555]

Great review. What happens after you switch back to "Normal" mode after doing the "scan" mode? It seems that if there is a brownout in scan mode the rx needs the power cycled to reboot but in "Normal" it will reboot on it's own, if I read the directions correctly.

In this case I would do a scan when I get to the field then switch to normal mode and fly in normal mode as long as the channels are saved from the scan.

[xjet]

In my testing it seems that the system continues to use the channels selected during the last scan-mode operation once it's been switched back to normal mode. That means you can use the scan-mode to establish a band-use pattern and then the system will keep using that pattern and then switch to normal mode.

[Lithoushine]

hey i really enjoy your reviews and i love the fact that you get so in-depth and i would also like to know when your first giveaway will be ? thanks

[xjet]

It'll be in a week (or two)'s time at the latest.

Just have to figure out how I can ensure that the winners get stuff they want and can use. No good giving a JR module-receiver to someone who flies Futaba eh? ;-)

[polzsp]

Thanks for posting this information. Very well done.

[daveyedgar]

great video! can you tell me what soft/hardware you are using in this video to detect the signals?

[xjet]

It's the WiSpy unit. There's a review of it on the RCModelReviews website.

[willy80203]

Thank you for the review!

Just to clarify was it in scan or normal mode the last time you started it up there?

Good luck with the new website too - I'll be visiting.

[xjet]

That was in scan mode all the time. Switching to normal mode would preserve the output that you see because normal mode uses the results of the last scan and continues to use them every time it's turned on until you switch back to scan mode and it re-scans the band.

[startazz]

What a joke with RCG that is, i suppose the truth hurts but we all know it's all about the dollar at the end of the day with these so called big forums,well there loss mate,top video and very very well put so as we all can understand whats going on with the Hitec 2.4GHz system 5*

[dynotuner]

Thanks Bruce , I have the Airview spectrum analyser , and found the same behaviour as you when run with an Assan V2 signal as the interference source.The A9 split it's channels fairly evenly around the first Assan channel. It's a relief to see you get the same result. Good work and yes i think RCG are a bunch of wankers for not allowing you to share your testing on their holy forum. Guess bucks win over brains yet again.Hey , that rhymes!

Cheers from OZ , Leon.

[HornbyFlyBoy]

Thanks for all your work Bruce. It is greatly appreciated. Cheers.