Question about SI-TEX MARINE E-LORAN

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Manual Needed Looking for a operating manual for a Micrologic Mariner Loran unit.. Also would like to know what kind of antenna it requires. Old unit but excellent Condittion.Appreciate an advise availaable

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Not sure how old your post is but I have both the Micrologic Mariner Loran Operator's Guide and also the Operator's Manual available, Both are in excellent condition.

If you still need them, you can email me at:

Capt. Rich

Posted on Jun 22, 2009

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Retrevo has a link to the User's Guide here: . You will need to enter a code to download the manual.

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My garmin quest 2 gps will not connect with satelites It loses its signal way too often.

I have seen this before. The flip up antenna connection tends to be a bit fragile and eventually will break the connector away from the antenna circuit board. It is a fairly easy fix if you are handy with a small soldering iron. I have personally repaired quite a few of these units. If not, Garmin will probably want $100-150 flat rate repair for about 15 minutes of work. A work around on this is to get a small "patch" antenna with a cable. Put the antenna on the dash and route the cable to the back of the unit and it should work fine. Just make certain if you buy an external antenna, you get the proper connector. There are lots of these antennas on Ebay.

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Thanks Mike

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Battery went dead on Garmin 396. The unit worked with airplane power in GPS mode but displays "waiting for data" on Nexrad Radar. I have downloaded version 5.30 I should alao mention that...

You indicated that the battery went dead. Does the new battery work correctly? That is, does it show a full charge when you've had it plugged in overnight and disconnect the power? Try plugging it into AC power overnight and verify that the battery is accepting and holding a full charge. If it isn't, then unplug and turn the unit on and allow the battery to run all the way down. Then charge it fully. This resets the charge indicator. You may have to repeat it once. I did this and was able to again show that both my new and my old battery were working o.k. They should show about 8.1 V fully charged.
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Navman 1220a antenna wiring diagram

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How to gain access to replace coax cableto

Found this solution and hope it helps.....!

fairbank56 Registered User 4stars.gif clear.gif
Join Date: Apr 2007 Posts: 553 Re: Garmin GA 28 Antenna Repair Help, Please Sounds like a GA29 which was a replacement for the GA28. If this is the antenna, then yes, it can be opened up. I'm a service tech and have replaced the coax in many of these antenna's. It is no simple task. The top part of the antenna does unscrew but the threads are coated with silicone rubber. You will have to open it with a strap wrench which means you need to make a special mount to hold the lower section of the antenna as it takes a lot of torque to get the top to start turning loose from the rubber. I used an old brass 1"-14 thread mount that I drilled and tapped a 1/4-20 hole into the side of the threads. I screw this up into the base of the antenna and align the tapped hole with the slot in the side of the antenna to allow me to put a bolt in. Then clamp the modified mount into a vise. This allows you to unscrew the top without allowing the antenna to just unscrew from the mount. Your not likely going to be able to just clamp the lower part of the antenna into a vice as a tremendous amount of torque is needed to get the top loose. You can try it, but you might just end up crushing/damaging the lower part of the antenna in doing so. Once you get it open, you have to unsolder a small circuit board that the cable connector is directly soldered to. Then you can get to the nut that holds the connector to the base. You will also need to find a replacement crimp ferrule to be able to re-crimp the braid of the coax to the connector which also means you should have the proper crimp tool, and you have to trim down the cable dielectric in order to fit up into the connector when you redo the cable end.

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Looking for free user manual download for my tomtom 4N01 GPS unit

A good source for Tom Tom manuals is here:

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1 Answer

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