IronFilm Posted November 20, 2017 Report Share Posted November 20, 2017 So usually the info is on the sliding door which covers up the hexadecimal rotary dials, but that door is gone. is there any other way to easily figure out what frequency block the receiver is? Quote Link to comment Share on other sites More sharing options...
Tom Craca Posted November 20, 2017 Report Share Posted November 20, 2017 There should also be s sticker inside the battery compartment. Quote Link to comment Share on other sites More sharing options...
IronFilm Posted November 20, 2017 Author Report Share Posted November 20, 2017 These are UCR210D, so no stickers inside the battery compartment. Quote Link to comment Share on other sites More sharing options...
daniel Posted November 20, 2017 Report Share Posted November 20, 2017 If it has original antenna you can reference the colour of the cap on the end or perhaps even the length on the antenna (obviously this will only really tell you what freqs the antenna was made for but it might be a start. After that I'd try sending serial number to lectro and ask. Quote Link to comment Share on other sites More sharing options...
IronFilm Posted November 20, 2017 Author Report Share Posted November 20, 2017 12 minutes ago, daniel said: If it has original antenna you can reference the colour of the cap on the end or perhaps even the length on the antenna (obviously this will only really tell you what freqs the antenna was made for but it might be a start. Ah yes, I should have said they're without antennas. Otherwise that would make it very easy! 13 minutes ago, daniel said: After that I'd try sending serial number to lectro and ask. Guess I have to do that, was hoping there might already be online a hidden list of info which explains it all. Quote Link to comment Share on other sites More sharing options...
Patrick Tresch Posted November 20, 2017 Report Share Posted November 20, 2017 If you know the frequency here are the blocks http://www.lectrosonics.com/Support/frequency-tables-switch-settings.html Quote Link to comment Share on other sites More sharing options...
Constantin Posted November 20, 2017 Report Share Posted November 20, 2017 7 minutes ago, Patrick Tresch said: If you know the frequency here are the blocks http://www.lectrosonics.com/Support/frequency-tables-switch-settings.html He doesn‘t know the frequency. Quote Link to comment Share on other sites More sharing options...
Patrick Tresch Posted November 20, 2017 Report Share Posted November 20, 2017 1 minute ago, Constantin said: He doesn‘t know the frequency. Ah! Ok... Quote Link to comment Share on other sites More sharing options...
Ray C Posted November 22, 2017 Report Share Posted November 22, 2017 Remove the screws from the case, then gently remove the PCB assembly. The frequency should be hand written on the underside of the PCB. Quote Link to comment Share on other sites More sharing options...
mikewest Posted November 22, 2017 Report Share Posted November 22, 2017 Look at the transmitter - lateral thinking! mike Quote Link to comment Share on other sites More sharing options...
IronFilm Posted November 22, 2017 Author Report Share Posted November 22, 2017 Is an orphan! No transmitter came with it :-P But I do have a fair few transmitters, so I'll give a try at setting them all to the same hexadecimal code and see if by luck it receives any. Then if I get lucky, I'll mark the transceiver myself, so I know for the future. Only if that fails, then I'll try bothering Lectrosonics with the serial number! Quote Link to comment Share on other sites More sharing options...
daniel Posted November 22, 2017 Report Share Posted November 22, 2017 7 hours ago, mikewest said: Look at the transmitter - lateral thinking! mike Lol, I was going to suggest looking at the TX, then thought I would suggest getting a new door and having the RX in whatever block suited :-) Iron, if you've got some TX across a range of blocks/channels/freqs you could try disabling squelch/pilot on RX and see what you can pick up. Even if your TX don't cover the full spectrum you may be able to extrapolate what the block is by picking up other transmissions (eg TV, emergency services etc). Quote Link to comment Share on other sites More sharing options...
jason porter Posted November 22, 2017 Report Share Posted November 22, 2017 Call Lectro with the serial number. Or, if you're handy, it's probably labeled on one of circuit boards. Grab a screwdriver. Quote Link to comment Share on other sites More sharing options...
axel Posted November 23, 2017 Report Share Posted November 23, 2017 doesen't it display the frequency it is set to? Quote Link to comment Share on other sites More sharing options...
Rick Reineke Posted November 23, 2017 Report Share Posted November 23, 2017 "doesen't it display the frequency it is set to? " - As I recall, the 210 Rx did not have a LCD alphanumeric info screen, just a few red LEDs for RF and audio. Quote Link to comment Share on other sites More sharing options...
DanieldH Posted November 24, 2017 Report Share Posted November 24, 2017 These situations when a RF-Explorer is useful... Quote Link to comment Share on other sites More sharing options...
Constantin Posted November 24, 2017 Report Share Posted November 24, 2017 28 minutes ago, DanieldH said: These situations when a RF-Explorer is useful... Don‘t think it‘ll pick up much from a receiver Quote Link to comment Share on other sites More sharing options...
daniel Posted November 24, 2017 Report Share Posted November 24, 2017 1 hour ago, DanieldH said: These situations when a RF-Explorer is useful... ...if you don't know freqs of a TX. Quote Link to comment Share on other sites More sharing options...
DanieldH Posted November 24, 2017 Report Share Posted November 24, 2017 1 hour ago, Constantin said: Don‘t think it‘ll pick up much from a receiver True, not sure though if the RFE Signal Generator might be of use. Quote Link to comment Share on other sites More sharing options...
daniel Posted November 24, 2017 Report Share Posted November 24, 2017 4 hours ago, DanieldH said: True, not sure though if the RFE Signal Generator might be of use. I don't have the generator on my RF explorer (or 2.4ghz module), I'm not sure it was available back then. But I just read: "Currently in BETA the new RF Signal Generator is fully programmable, can work as a CW single carrier, multi Sweep and Tracking Generator from 23.4Mhz to 6GHz. More details available on this page." So it's a pretty good call. Iron, if you don't own an RFE I would give a strong recommendation to buy 1. They are really useful and quite cheap considering other solutions. You can RF survey a location without carrying loads of gear. Excellent battery life allows you to monitor RF changes across the day and avoid issues that didn't show when setting up etc. I generally cross reference the RX scan with what shows on the RFE (as I'm not always convinced about the RX freq scan). Quote Link to comment Share on other sites More sharing options...
Constantin Posted November 24, 2017 Report Share Posted November 24, 2017 It is a good idea to use a (any) signal generator for this, but the RF Explorer one is not an add-on module it’s a stand-alone device. I suspect that most of us won’t have one, but if you do, that could help. I still think calling Lectro with the serial would be quicker and easier (than buying an rfe generator). Or, as suggested above, open the box and look at the pcb. My SSM has its serial and block written there Quote Link to comment Share on other sites More sharing options...
LarryF Posted November 24, 2017 Report Share Posted November 24, 2017 1-800-821-1121 An Unartificial Intelligence Human will answer the phone and get you quickly to someone that can track down your serial number and block. Best, Larry F Quote Link to comment Share on other sites More sharing options...
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