Shop our Airplanes Products Drone Products Sales
Thread Tools
Jun 12, 2010, 04:11 PM
Registered User
Discussion

Lawmate vs BOB Fox 700 Tx/rx combo which one has the 1160?


Closing the thread, all infos availble here
Last edited by iacei; Jul 23, 2010 at 09:16 AM.
Sign up now
to remove ads between posts
Jun 12, 2010, 09:12 PM
Registered User
masam54's Avatar
ch7 on Fox is 1200MHz.
ch6 is 1160MHz.
Jun 13, 2010, 01:29 AM
Registered User
They also share ch3, 1080Mhz, for which there is an unique sweet transmitter.
Jun 13, 2010, 02:42 AM
Registered User
Quote:
Originally Posted by RENATOA View Post
They also share ch3, 1080Mhz, for which there is an unique sweet transmitter.
Which is?


1080Mhz might be a good choice as I have 2.4Ghz RC Range problems....
Jun 13, 2010, 03:26 AM
Registered User
http://www.dinodirect.com/1-2GHz-Min...r-ESTX800.html

It is definitelly a winner... under 10 grams antenna included, CF card sized, the widest range of power choice, even at 5V is still spit some 200mW, powered from 2s works like a charm, from 3s a bit hot.
2.4GHz RC influence close to nothing, failsafe when under 5cm between antennas
Jun 13, 2010, 09:16 AM
Registered User
MorrisM's Avatar
Quote:
Originally Posted by RENATOA View Post
http://www.dinodirect.com/1-2GHz-Min...r-ESTX800.html

It is definitelly a winner... under 10 grams antenna included, CF card sized, the widest range of power choice, even at 5V is still spit some 200mW, powered from 2s works like a charm, from 3s a bit hot.
2.4GHz RC influence close to nothing, failsafe when under 5cm between antennas
How do you select the frequency? What does this frequency description mean?
"Frequency Control: Can make all Kinds of frequency, adopt CPU frequency lock the wreath to control, with high frequency stability and non-adjust"
Jun 13, 2010, 10:04 AM
Registered User
It is single channel, hardcoded on 1080 Mhz.
There is a crystal inside, and a fixed 256 divider/counter, nothing programable.
You must change the crystal to 5MHz from 4.194 or so, how is now, to have 1280MHz, but a lot of PCB inductances still remains tuned on 1080MHz I guess.
See attached picture if you know a RF guru, already shared it with some and they are skeptical.
Jun 13, 2010, 11:46 AM
Registered User
Quote:
Originally Posted by RENATOA View Post
http://www.dinodirect.com/1-2GHz-Min...r-ESTX800.html

It is definitelly a winner... under 10 grams antenna included, CF card sized, the widest range of power choice, even at 5V is still spit some 200mW, powered from 2s works like a charm, from 3s a bit hot.
2.4GHz RC influence close to nothing, failsafe when under 5cm between antennas
Really interesting because my current BOB av combo TX just kills my RC, just had another shutdown RC Link today it was not more then 400m away!!!

Even worse, I tried with the same Tx a Car Fpv Project with FM RC link and it destroys the range from 200m to ....10m

Video is good but if I can't use any of my RC Toys with it..... no FPV
Jun 13, 2010, 11:54 AM
Registered User
So you kept the provided antenna?

And You got how much Range? Which configuration? (Patch antenna on Rx?)

We really should do a Unique Thread on 1.2Ghz Tx/Rx.... But I currently have no time for it but would be happy to contribute.

Renatoa, are you in the Mood? We could just ask ppl to reply giving their spec:

- Name of Tx / Rx
- Tx Antenna
- Rx Antenna
- Frequency Chosen
- RC Link (2.4 / FM)
- Link to buy
- Certified Range Result
- Pros & Cons:
Jun 13, 2010, 01:30 PM
Registered User
In the mood for what ?

About the 12ch receiver it seems we already have the verdict of VRFlyer guru, same class as Lawmate:
https://www.rcgroups.com/forums/show...5#post15246320
But more versatile because it covers from 910 to 1280MHz.
As far as I know there is only one 12 ch receiver.
You can get it the cheapest from DD for $35 the last price I remember, or in a combo with a decent 420TVL camera and 200mW Tx from HK, for $50.
There are also 8ch and 15 ch receivers, very scarce reviews or opinions.
ElectronicaRC sells an 8ch receiver, not sure if the same as sold by chinese shops.

The real challenge is to file transmitters
Jun 13, 2010, 01:39 PM
http://drone-pilot.blogspot.fr
lovegroove's Avatar
Quote:
Originally Posted by MorrisM View Post
How do you select the frequency? What does this frequency description mean?
"Frequency Control: Can make all Kinds of frequency, adopt CPU frequency lock the wreath to control, with high frequency stability and non-adjust"
Ignore the bit about "making all kinds of frequency". The second bit is just a really bad translation and description of PLL (Phase loop locked).
Jun 13, 2010, 02:37 PM
Registered User
Quote:
Originally Posted by RENATOA View Post
In the mood for what ?

About the 12ch receiver it seems we already have the verdict of VRFlyer guru, same class as Lawmate:
https://www.rcgroups.com/forums/show...5#post15246320
But more versatile because it covers from 910 to 1280MHz.
As far as I know there is only one 12 ch receiver.
You can get it the cheapest from DD for $35 the last price I remember, or in a combo with a decent 420TVL camera and 200mW Tx from HK, for $50.
There are also 8ch and 15 ch receivers, very scarce reviews or opinions.
ElectronicaRC sells an 8ch receiver, not sure if the same as sold by chinese shops.

The real challenge is to file transmitters

Exactly what I was thinking. Are you in the mood to make a unique Thread about 1.2Ghz Txs because there is so much crap on the market....
Jun 13, 2010, 10:43 PM
Engineer for Christ
IBCrazy's Avatar
Most people (including me) are going with the BOB system. It has been tested and works well for the most part. The RX is the real problem. It uses a 75 ohm "F" connector and the stock antenna is poor for just about every frequency.

The only solution to these issues is either to build your own antenna or buy an F to SMA converter and screw it onto the end of your RX unit and deal with the losses that incurs. I'm going with the converter and using a home made Yagi antenna.
Jun 14, 2010, 12:12 AM
Registered User
Is a big deal to change the F connector to SMA ?
Jun 14, 2010, 10:39 AM
Registered User
Quote:
Originally Posted by RENATOA View Post
Is a big deal to change the F connector to SMA ?
Some solder and that's it no?


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question LawMate Tx & Rx questions markeydoo FPV Talk 33 Mar 02, 2011 07:47 AM
Help! Which cheap TX/RX and can the cheap one be suped up? Tommygunn FPV Talk 0 Mar 16, 2010 07:28 PM
Found Wanted LawMate 2.4 TX and RX markeydoo Aircraft - General - Radio Equipment (FS/W) 0 Jan 21, 2010 09:34 PM
Help! 2.4Ghz Lawmate Tx With BlackwidowAV Rx?? Andology FPV Talk 0 Dec 14, 2009 03:46 PM
Discussion Immersion Rc Tx with a Lawmate Rx. Wich channel? Remy FPV Talk 12 Dec 10, 2009 06:35 PM