Checking frequency output

[WhyKnot]

I have acquired 15 or so different tx from the family. Could someone tell me how to check output wave and do the tx' use crystals to produce proper frequency?

[Kilrah]

Umm... How about some info about what kind of transmitters exactly?

[WhyKnot]

FMS F-4 FHSS 2.4
3 of these E-FLITE MLP6DSM EFLRMLP6
SYMA 944842
Hobby Zone HBZ5310-HBZG2
Tx for my SYMA X5C
and a couple TX for JJRC H20C and a JJRC H20w


and the one I was hoping to use a lot is my Turnigy TGY 9X qith ERSKY9x 2.4

thanks for your reply

[Kilrah]

OK those are all 2.4GHz, so no they don't use replaceable crystals and measuring them would require expensive test equipment. Best is to range check with a compatible model.

[bob195558]

RF Explorer 6G Combo: (http://j3.rf-explorer.com/40-rfe/articl) spectrum analyzer.
Which can show frequency bands between 15 - 2700 MHz and 4850 - 6100 MHz.
Example of some Frequency bands 72, 433, 933 MHz, 2.4 and 5.8 GHz.
Cost about: $365.00.
Other equipment will cost a lot more.

Bob B.

[krby]

+1 on the RF explorer. If you're doing Hobby / nerd-for-fun level of spektrum analysis it works great! I've even used it to find a free 5.8Ghz band for FPV (yes, I could have used an RX for this, but I had the unit at the field to show someone so I thought I'd keep using it to solve a problem I actually had in front of me)