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Old Oct 09, 2012, 11:19 AM
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~>Miha<~'s Avatar
Joined Dec 2009
1,473 Posts
Quote:
Originally Posted by ~>Miha<~ View Post
Do you happen to know which dip switch combination is which frequency? Couldn't find that info on the BEVRC site.
There seems no info anywhere on this one here on RCG, so here are the dip switch settings for the 1.2 (not 1.3) GHz 200mW from BEVRC (not sure if they sell this one anymore. I see only a 1.3GHz 200mW now in their shop. I bought it in Apr. 2012).

_____________1_____2_____3_____4
CH4 1,080MHz DOWN DOWN DOWN UP
CH5 1,120MHz DOWN DOWN UP DOWN
CH6 1,160MHz DOWN UP DOWN DOWN
CH7 1,200MHz UP DOWN DOWN DOWN

All four channels give a clean image on the test bench. The Tx isn't interesting though if you have to stick to 1.280MHz (CH9). I guess the 1.3GHz version will have the 8,9,H,C channels.
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Old Oct 09, 2012, 04:45 PM
Cape Cod
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Cape Cod
Joined Sep 2010
912 Posts
Good point, what are "H" and "C" channels. I bought a 1000mw Vtx from Ready made and tested it on my Diawa swr meter into a nonreactive load and the output ranged from 350-625mw. I did sent it back and will order the 1000mw version as it seems to be reported better. I noticed the "Hand C" channels and was wondering what they were.
Tom
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Old Oct 09, 2012, 05:13 PM
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Daemon's Avatar
Lakewood, Colorado
Joined Aug 2002
29,117 Posts
1240 ch8 (Racewood Rx ch1)
1280 ch9 (Racewood Rx ch2)
1320 chH (Racewood Rx ch3)
1360 chC (Racewood Rx ch4)

Newest RMRC Txs have only ch8 and ch9, and ch8 is 1258.

ian
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Old Oct 09, 2012, 05:16 PM
Cape Cod
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Cape Cod
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912 Posts
Thanks Ian. You da man.
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Old Oct 16, 2012, 11:50 AM
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Joined Apr 2012
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I need a small vtx that fits a radjet, and arround 20-30USD. anyone? how about the HKs new vtx is it really 700mw power?
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Old Oct 16, 2012, 04:39 PM
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USA, NY, New York
Joined Nov 2008
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The $17 one is sh. Do not buy it!
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Old Oct 16, 2012, 04:48 PM
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Originally Posted by tushev View Post
The $17 one is sh. Do not buy it!
what should i buy instead?
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Old Oct 16, 2012, 07:54 PM
sunk more than scorp
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Australia, VIC, Melbourne
Joined Jan 2010
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Tim Tim Timmm... your budget seems to always be half of what you should spend, sure money is hard to come by and all, but think of the result of a project that is lowball on all parts.... What sort of outcome would you expect.... don't rush this hobby, take your time and do the reading otherwise it'll bight back hard.

'readymaderc for $60' there and you got an answer....
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Old Oct 16, 2012, 08:13 PM
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Joined Apr 2012
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Im already flying My bixler with lawmate 1w and rvosd etc but looking for Another small Vtx, maby ill go for the fox.
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Old Oct 17, 2012, 06:52 AM
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Luxembourg
Joined May 2009
806 Posts
the fox 800 from sunsky is not so heavy but for a miniquad I just purchased a 300mw 1.2Ghz from ebay, I'll review it in the coming months.

Cheers
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Old Oct 17, 2012, 07:26 AM
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Quote:
Originally Posted by iacei View Post
the fox 800 from sunsky is not so heavy but for a miniquad I just purchased a 300mw 1.2Ghz from ebay, I'll review it in the coming months.

Cheers
do you have a link?
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Old Oct 18, 2012, 11:50 AM
☢ Self-Proclaimed n00b FPVer ☢
United States, CA, Los Angeles
Joined Sep 2012
780 Posts
"New" customizable Freq FPV mini 1.2/1.3 1W VTx & VRx from Correa Electronics

While doing some Googling on available 1258MHz VTx I ran into this interesting gear. What's intriguing is the "custom" frequencies as shown in the description : Working Frequency: 1080MHz, 1120MHz, 1160MHz, 1200MHz (Frequencies like: 1.3GHz, 900MHz, etc. can be customized)
Also, the "Channel changing by remote control(interface)" is interesting.
Has anyone had a chance to test these or any other reports about the functionality/ performance of this gear?

The VTx looks very familiar, almost identical to the 1258MHz offerings by vendors. . I emailed Correa Electronics and got a response. Pricing is very similar as well for the VTx, the combo VTx & VRx does seem to be nicely priced @ $89 + $25 shipping (see bottom for quote). I also asked about a couple of their mini CCD cameras. I've attached my questions and their response at the bottom of this post.

They also offer a 5.8GHz unit with same features. I posted that info on a new thread. If this gear can do what they claim and has good performance it would be a nice addition to what's available for FPV applications.



FPV mini 1.2/1.3 GHz 1W lightweight video TX/RX NEW

CS-B1pro
Description
This is a 1.2 GHz mini wireless video transmitter and receiver kit which is specially designed for FPV flyers, 1W output power and very light weight.



4 channels 1.2G 1W wireless audio/video transmitter and receiver system

Output Voltage/Consumption Current: DC 12V / 300mA
Output Frequency/Channel Number: 1.2 GHz, 4CH
Working Frequency: 1080MHz, 1120MHz, 1160MHz, 1200MHz (Frequencies like: 1.3GHz, 900MHz, etc. can be customized)
Output Power: 1000 mW
Transmitter Weight: 26g
Dimension of TX: 8mm x 49mm x 25mm
Channel Display: LED digital read-out display with control button

My email:
On Thu, Oct 18, 2012 at 2:31 PM, <engineerx!@#$%^&@yahoo.com> wrote:
Hello,
Can the new "mini" 1000mW 1.2GHz transmitter (CS-B1pro) be configured to work on 1258 MHz and 1280 MHz. This is for use in U.S.A. Those are the legal frequencies we can use here.
Also, can the transmitter work on those frequencies?
Also please provide pricing for these 2 cameras:
CS3120CH NTSC 20mm x 20mm 520 TVL ccd camera
CS3125CHE NTSC 25mm x 25mm 650 TVL ccd camera
What is the price of each individual part?
Do the transmitter and receiver have lower price if purchased together?
How much for shipping to USA California?
Can I buy from you direct on this website or do you have another website online where I can order. Please provide website link URL.
Thank you

Their response:
Hi ,
Yes, the new FPV 1W 1.3Ghz (CS-B1pro) can be configured to work on 1258Mhz and 1280Mhz. The price based on QTY 1 is USD 89.00/set; if buy tx rx sperately, TX price: USD 74.00/pc; RX price: USD 25.00/pc.

Price for Cameras:
USD: 50.00/pc; CS3120CH NTSC 20mm x 20mm 520 TVL ccd camera
USD 70.00/pc; CS3125CHE NTSC 25mm x 25mm 650 TVL ccd camera

You can purchase directly from our company, the sample price for this 5.8Ghz 600mW video TX RX is USD 95.00/set, EXW. Thank you.

1KG DHL shipping to the USA: USD 25.00, 3-5 days.



--
Best Regards,
Mariza Hsu
Shenzhen Correa Electronic Co., Ltd
A516,HuiBaoJiang Building,No.398 of MinZhi Ave.,ShenZhen,518131,CHINA
Website:http://www.correa-china.com
Tel: 0086-18682126615 / 75533129085
Fax:0086-75522302301
Email: correa@vip.163.com correaelectronic@gmail.com
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Old Oct 19, 2012, 06:32 PM
☢ Self-Proclaimed n00b FPVer ☢
United States, CA, Los Angeles
Joined Sep 2012
780 Posts
IBCrazy found :
http://www.diytrade.com/china/pd/434..._receiver.html

http://www.hczye.com/enindex.asp

Looks like that's the manufacturer and Correa is one of the distributors? Awful little info that this manufacturers provides!
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Old Oct 23, 2012, 08:49 PM
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United States, TX
Joined Oct 2009
439 Posts
Quote:
Originally Posted by Adidas4275 View Post
here is my 700mah 1.2ghz 15channel TX

removed the case, added a heatsink with artic alumina epoxy, shrink wrapped and soldered a servo wire to the power, ground and video.
Could you tell me if the antenna connector is SMA or RP-SMA please?


Thanks
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Old Oct 24, 2012, 12:24 AM
... where is it ?!
ro.bi.'s Avatar
United States, CA, SF
Joined Jul 2011
449 Posts
1.2 SunSky improvement suggestions - needed

Maybe this is a better forum to post my question:

My 1.2 SunSky w/ stock antennas (plastic, articulated) on both vrx/tx, has worse penetration than my 5.8 FoxTech w/ Skew Planar (4 lobes) on vrx & stock (plastic, articulated) on vtx
Flying stock 2.4 9x radio ... 12V from a 3s Lipo FPV cam is a GoPro
What can I do to get the best out of the 1.2 SunSky vrx/tx !? Thanks

Maybe I should mention I fly a Witespy quad ...
Also, reception only works on channel combinations: 4-7, 7-9, & that's pretty much it. Nothing on 8-8 ?!

I have to get a Racewood vrx ... What else?
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