505 questions

[BDCC13]

I've been using my 505 in disc mode, all metals, with sensitivity between 2 and 3 o'clock with a 1.5 - 2 sec swing. I get beeps at end of swings and turning down the sensitivity doesn't seem to have an affect unless it's way down. Is this part of it's personality or do I need more tuning. Any help would be appreciated. Thanks!

 

[Hoze513]

make sure to keep your disk even with the ground don't lift one end more than the other

 

[matthias]

I don't think you can be in Disc and All Metal at the same time since they are two distinct modes. All Metal will pick up everything regardless of sens setting. If you don't want to find everything, try Disc, Notch or Auto-Notch and try different settings for sens and Disc/Notch. One of my favorite settings is Auto Notch mode and both dials set at about 3 o'clock. This is just my opinion and I hope it helps you somehow. HH. Matt

 

[capt.]

Disc all metal mode is simply the disc mode with the dial turned all the way down. It is the most sensitive setting in disc mode as there is no discrimination and the 3 tones work to help classify the metal under the coil. Some people may not know that when you progressively discriminate more trash, your detector becomes less sensitive and can actually miss targets that are close to the trash that has been discriminated out. Anyway, to your problem... make sure that your coil is tight on the rod, make sure the rod is tightly secure in the other rod, (you may have to use electrical tape or duct tape to keep it still), and make sure that your coil wire is tightly wound around the rod without much slack. All of these things individually can make the symptom your are describing. If after doing these things the problem continues, something is wrong that I can't help you with. Contact First Texas as they have an excellent customer service dept. You should be able to use the detector with the sens setting at full unless you are experiencing EMI feedback. I prefer to swing a little slower and make sure to over lap your coil path by half each time because in disc mode, the smaller coil is the one that receives the signal, so if you are swinging back and forth 8 inches at a time, you are missing targets that you would pick up in all metal mode. Hope this helps.

capt.

 

[BDCC13]

Thanks capt., I have noticed the loose fit of the lower rod into the upper, I'll fix that first. I read on another forum that the coil wire should be run straight up the lower rod and then start coiling at the upper rod haven't tried it yet would this make a difference? Thanks for the advice!!

 

[capt.]

This is a quote from the manual that came with my 505. The picture that accompanies the quote shows the cable wrapped from bottom to top. I had never heard of running the cable straight up the bottom rod until your post, but I am not an expert by far.

●3 Wind the search coil cable around
the stem. Leave enough slack in the
cable to let you adjust the coil when
you are hunting on uneven ground.
Then tighten the knob at the end of
the search coil.

Hope you get it fixed cause it is a great little detector and if you can concentrate on detecting, and not a problem you are having, you will have much more fun. While all the things I listed in my last post can cause problems, I didn't want to give you the wrong impression...I have never had a problem with mine. I just remembered reading sometime ago that if swigging in wet grass, you may get some falsing. Didn't know it that would help or not. Anyway. good luck!

capt.

 

[Suninyourhand]

No motion mode with mis-adjusted ground balance?

 

[shortribs]

Most of the models have been revamped up till 2004 and I have had a few that were so noisy I just returned them or traded them back in to a dealer for something else.Generally B.H. are quiet detectors.