reg Posted February 17, 2006 Report Share Posted February 17, 2006 Hi all. I have been trying to get my lowrance 3500c to talk to my nasa sx 35 done everything by the book on both items but nowt has anybody had a problem of this nature. Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 17, 2006 Report Share Posted February 17, 2006 Reg, First make sure the Lat/Long is turned on on your SX35 - goto Menu/Data set/LLpostion, and select on. Check the cables connections. Pin 1 (brown) on the SX35 should be connected to Yellow (Transmit) from your 3500C (make sure you are using the NMEA 0183 cable and not the NMEA 2000 cables). Pin 2 (red) on the SX35 should be connected to the Shield Ground wire from the 3500C. On the 3500C press Menu/Menu/System Setup/Communications Port Make sure the Baud Rate is 4800. Make sure NMEA 0183 Output is selected (a cross in the box). Select the Configure NMEA 0183 button, then make sure all the selections in the menu are selected, especially RMC & RMB. You can now exit back to the main display. Next make sure your 3500C has actually acquired a signal and is showing it's Lat and Long. Double check that you are not in Simulator mode. It takes 30 secs or more for the VHF to initially receive the Lat and long from the GPS so make sure you give it enough time. Hopefully you will now see the Lat/Long on the SX35. If not, you could try setting the SX35 as follows: NMEA SET Allows NMEA sentences from navigation equipment manufactured to earlier versions of the NMEA standard to provide Lat/Lon position coordinates and UTC time. Press the MENU key. Menu topics appear in the display. Use the SELECT knob to position the cursor on the NMEA SET topic. Press the ENT key. The NMEA CHECKSUM menu appears in the display. Use the SELECT knob to select either ON or OFF. When your selection is complete, press the ENT key to store the setting and exit the menu. Let me know if you still have problems. Bob Quote Link to comment Share on other sites More sharing options...
Paul J Posted February 18, 2006 Report Share Posted February 18, 2006 Bob, Here another one for you I have a Lowrance 3300c, a garminn 250c fishfinder and a garmin vhf, i have connected them all up. plotter and vhf no problem. Garnim 250 shows gps position - communication this way is fine but the Lowrance wont accept a marked position sent from the garmin. It is supposed to allow you to send marks to the gps. any ideas? i have only joined up the wires and not used a seperate bus connection. Cheers Paul Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 Paul, Make sure the Lowrance is set up to "receive" signals from the FF. On the 3300C press Menu/Menu/System Setup/Communications Port Make sure the Baud Rate is 4800. Make sure NMEA 0183 Input AND Output is selected (a cross in the box). Select the Configure NMEA 0183 button, then make sure all the selections in the menu are selected. I'm a bit concerned that the Lowrance units do not accept NMEA 0183 SDWPL sentences, which means they may not accept the "Mark" data from the Garmin. For wires, blue from Garmin should be connected to Orange on the 3300. And black on Garmin connected to shield on the 3300. On the 250C I assume you already must have NMEA INPUT/OUTPUT set to On otherwise you would not be seeing Lat/Long on it. I'll check on the SDWPL sentences on the Lowrance. BF Quote Link to comment Share on other sites More sharing options...
Paul J Posted February 18, 2006 Report Share Posted February 18, 2006 Cheers Bob, if we can crack that one i'll be well happy. I'll check on the SDWPL sentences on the Lowrance.I'll check on the SDWPL sentences on the Lowrance. i suspect as i have an older model it won't be capable perhaps theres an software upgrade? PJ Quote Link to comment Share on other sites More sharing options...
reg Posted February 18, 2006 Author Report Share Posted February 18, 2006 Hi Bob I have done what you said and nothing is showing up on the nasa. I have checked the nema wiring with a meter and they check out ok I am at home doing this and have the pod on a broomshank out of the window it is picking up 5 sat's. There is no antenna fixed to the radio would this make a differance. as the antenna is fixed to the boat which is a mile away in a yard Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 Hi Reg, Another thing to check. Make sure Manual Lat/Long (Manual LL) is turned off. LL POSITION should be ON. MANAUL LL should be OFF. Manual LL overides any signal coming from your GPS. Also, make sure the main date and time have been properly set (not in the Manual LL section). If this doesn't work, maybe I could drop by. Where do you live? Just give me your town, not the full address. cheers BF Quote Link to comment Share on other sites More sharing options...
Guest Guest_reg_Fisherman Posted February 18, 2006 Report Share Posted February 18, 2006 Hi Bob. Just checked on what you just said it's format is just as you said still no joy anyway Im coming down to bournmouth on the 27 of this month for a week if you like I can fetch the the 2 items with me then if you like we can meet up. I will send you a email as to where im stopping then we can go from there ok. thanks for your imput Its probaly me overlooking somthing simple. Or if you want to pop round Im only 350 miles up the road in Durham. anyway thanks for the offer. regards Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 Reg, Forgot to reply about the lack of VHF antenna. This should not make a difference, BUT... MAKE SURE YOU DO NOT PRESS THE TRANSMIT BUTTON. Transmitting without an antenna or dummy load can damage your VHF. cheers BF Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 One more thing to check. Put the VHF into Simulator mode. This provides simulated GPS data for demonstration purposes, so we can check the the LAT/LONG are showing in demo mode. Transmitter and DSC functions are totally disabled. Press and hold the MENU key while turning power On. You should now be in Simulation mode and should be able to see a simulated LAT/LONG. BF Quote Link to comment Share on other sites More sharing options...
reg Posted February 18, 2006 Author Report Share Posted February 18, 2006 Bob. That worked ok Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 OK, so simulation works, which tell's us that the display part is working. Has to be a set up issue. I will be in Israel from 27th till 3rd March, so could be available on Sun 4th. cheers BF Quote Link to comment Share on other sites More sharing options...
reg Posted February 18, 2006 Author Report Share Posted February 18, 2006 Bob. I will be on my way back home when you return. so have a great time while you are over there. and maybe meet up in september when I fetch the boat down for a week.anyway thanks for your input I will just keep playing with it and might hit the right button Cheer's. Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 18, 2006 Report Share Posted February 18, 2006 Reg, I'm a bit suspicious of the wiring names they give in the SX35 manual. Can you try connecting pin 4 from the SX to the GPS ground instead of pin 2 from the SX? I want to make sure we have a proper ground. They mark pin 4 as Ground/TX which is a bit confusing. Usually GND is shared between TX and RX, so maybe this is the gnd for RX aswell. The manual isn't very clear on which connections to use. BF Quote Link to comment Share on other sites More sharing options...
reg Posted February 19, 2006 Author Report Share Posted February 19, 2006 Hi Bob. NO luck with that. I think its going to be a somthing or nothing thing Reg Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 19, 2006 Report Share Posted February 19, 2006 Oh well. We tried. Don't like not solving mysteries, though. BF Quote Link to comment Share on other sites More sharing options...
reg Posted February 19, 2006 Author Report Share Posted February 19, 2006 Bob. have emailed company I bought it from to see what they come up with. then I will probally get in touch with lowrance and nasa marine and see what they have to say anyway will let you know outcome. thanks for your help . Reg Quote Link to comment Share on other sites More sharing options...
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