Jackpine Savage
Active member
First have to discuss the threshold setting.
In the past I had been setting the threshold at 7 to get the faint hum in my headphones. It took a while (thick noggin) to realize that a setting closer to 0 should be better, right? DUH!
So what was I doing wrong? As it turns out, I had the volume settings between the detector and headphones all wrong. With the detector volume set in the mid to upper 20's and adjusting the audio level to a comforatble level with the headphones I needed the threshold set at that setting of 7. Gotta be a better way so I reversed to setting the phones at max and adjusting the audio level with the detector. Now I can get the same slight hum level with the threshold set at 1 so more better right? Well not exactly depending on how you like your audio to be modulated on deeper targets.. In air tests with the new settings I get full audio to within an inch or so of max air test depth, compared to the original settings where the audio tapered of sooner by about an inch or more. Overall air test depth was the same regardless so we have a bit of a choice in choosing the type of audio modulation we prefer.
A couple quick notes:
With the original setup of threshold at 7, reducing the threshold to a setting of zero resulted in air test depths dropping off by 1 to 2". So at 7 is 6 then equal to 0 and I was pushing the threshold way negative by setting it to 0? I think so.
With my White's Prostar headphones setting the detector volume to around 6 gave a comfortable audio level. Switching to the Koss QZ-99's I had to increase the detector setting to 12-13 to get the same volume which is probably due to the difference in sensitivity between the two sets.
For people that choose to hunt without headphones I can see why the threshold level changes to follow the volume setting. Giving the operator a better chance on small gold regardless of the volume level necessary to over come the ambient noise level.
Tom
In the past I had been setting the threshold at 7 to get the faint hum in my headphones. It took a while (thick noggin) to realize that a setting closer to 0 should be better, right? DUH!
So what was I doing wrong? As it turns out, I had the volume settings between the detector and headphones all wrong. With the detector volume set in the mid to upper 20's and adjusting the audio level to a comforatble level with the headphones I needed the threshold set at that setting of 7. Gotta be a better way so I reversed to setting the phones at max and adjusting the audio level with the detector. Now I can get the same slight hum level with the threshold set at 1 so more better right? Well not exactly depending on how you like your audio to be modulated on deeper targets.. In air tests with the new settings I get full audio to within an inch or so of max air test depth, compared to the original settings where the audio tapered of sooner by about an inch or more. Overall air test depth was the same regardless so we have a bit of a choice in choosing the type of audio modulation we prefer.
A couple quick notes:
With the original setup of threshold at 7, reducing the threshold to a setting of zero resulted in air test depths dropping off by 1 to 2". So at 7 is 6 then equal to 0 and I was pushing the threshold way negative by setting it to 0? I think so.
With my White's Prostar headphones setting the detector volume to around 6 gave a comfortable audio level. Switching to the Koss QZ-99's I had to increase the detector setting to 12-13 to get the same volume which is probably due to the difference in sensitivity between the two sets.
For people that choose to hunt without headphones I can see why the threshold level changes to follow the volume setting. Giving the operator a better chance on small gold regardless of the volume level necessary to over come the ambient noise level.
Tom
