Push the SETTINGS button to access the basic settings. You can navigate the basic settings with the up and down buttons. The value of the selected setting will be displayed on screen. You can change the value using the plus (+) and minus (-) buttons. If the up/down and +/- buttons are held down, the options and values will change rapidly.
To exit the settings, press the SETTINGS or the PP button once. Settings will time out in approximately 8 seconds and the device will revert back to the modes window.
Gain is the depth setting of the device. It is also used to eliminate the ambient electromagnetic signals from the surrounding environment and noise signals transmitted from ground.
NOTE: To obtain maximum depth performance, to eliminate the noise caused by electromagnetic interference, try shifting the frequency first.
Frequency shift is done with the FQ. SHIFT option. In the Anfibio Multi, when the frequency shifting is not sufficient for eliminating noise, you can also change the operating frequency (5kHz/14kHz/20kHz) of the device.
GAIN setting range is 01-99 and pre-defined for each mode. All modes start at default settings. They can be manually modified when necessary. Gain adjustment applies to the selected mode; the modified setting does not affect the gain setting of the other modes.
NOTE: If the ground is highly mineralized causing the device to overload, decrease the GAIN until the ”Overload” message disappears from the screen.
Gain in General Search Modes (GEN and GEN Delta)
In the GEN modes, GAIN setting causes an increase or decrease in the popping sounds and false signals. GAIN setting is a personal preference. However, It is important to set the GAIN setting to the highest level possible where no major popping sounds are heard to avoid missing smaller and deeper targets. For example; if the noise level is suitable for searching and is the same at gain levels 40 and 70, then 70 should be preferred. Using the factory default levels will be a good starting point until you get familiar and experienced with the device.
Gain in Discrimination Modes:
Since the threshold setting is not available in the discrimination modes, you can increase the depth of the device or ensure noise-free operation on different grounds only by using the GAIN setting.
In order to adjust the gain in the discrimination modes, first ground balance while the GAIN is at its default setting. After ground balance is completed, hold the search coil stationary or swing over the ground at search height. Reduce the GAIN if the device receives noise. If not (ensure that the DISC. is also at its default settings when checking this), increase the gain gradually until there is no popping sound. If the device starts to receive noise during searching, reduce the GAIN gradually.
NOTE: Anfibio is a high gain device and some of the search modes will run relatively noisy (DEEP, 4 TONE and 5 TONE) compared to other modes so as to provide the best depth performance. However, due to the design characteristics of these modes, the noise will be heard more if the coil is in free air than sweeping the coil on the ground. Please keep this factor in mind while adjusting the GAIN.
DISC. is the ability of the device to ignore all metals below a certain Target ID. In the DISC. process, the filtered ID range is shown with lines on the ID scale and every 2 consecutive IDs are represented with 1 line. For example, if you set the DISC. to 30, 15 lines will be shown between the 0-30 ID range on the scale and the device will not produce an audio response for any metals with IDs between 0-30.
DISC. setting is disabled for GEN modes (GEN and GEN Delta) only. For all other modes, the factory default value will be displayed on screen at start up.
In order to change the DISC. value, select the DISC. option from the SETTINGS and decrease or increase the value using the plus (+) or minus (-) buttons. Please remember that certain targets, other than the ones you want to ignore, may also be missed or their signals may become weaker when using the DISC. setting.
In the case of receiving multiple IDs for the same target – let’s say 35 and 55 – due to the orientation of the target or the composition of the metal itself, if you set the DISC. to 40, because 35 will fall in the filtered range, the signal strength as well as the depth may diminish.
NOTE: DISC. setting works inversely proportional to depth up to level 15 in the Anfibio Multi and Anfibio 14, and up to 49 in the Anfibio 19 in all modes. In other words, as the DISC. is increased up to 15, stability will increase but depth will be reduced and vice versa. Above levels mentioned above though, both depth and noise will increase.
NOTCH and NOTCH Volume (NOTCH V.)
NOTCH is present in the Anfibio Multi and Anfibio 14 models. NOTCH V. is present in the Anfibio Multi only. These settings are not present in the Anfibio 19 model.
NOTCH is the ability of the device to discriminate single or multiple Target IDs by not emitting an audio response for them or giving a low iron tone.
Although NOTCH may seem similar to DISC. at first glance, these two settings have different functions. While the DISC. filters out all IDs between 0 and the set value, the NOTCH filters IDs individually.
With the NOTCH you can reject a single ID or multiple IDs at the same time. This process does not affect any IDs below or above the selected IDs. For example, you can filter out IDs between 31-35 as well as 50 simultaneously.
How To Use The NOTCH Setting
When NOTCH is selected from the SETTINGS, first, the current DISC. value will be displayed on screen and discriminated ID range will be shown on the ID scale with lines. For example, if the DISC. is set to 15, when you select NOTCH, number 16 will be displayed on screen corresponding to 8 lines on the ID scale (every 2 consecutive IDs are represented with 1 line). NOTCH cannot be used within the DISC. range. In other words, if the DISC. is set to 15, NOTCH can only be applied to IDs 16 or higher. If you want to NOTCH IDs 15 or below, first you need to change the DISC. value.
NOTCH rejects or accepts IDs with the help of the cursor in the middle of the screen. To move the cursor on the scale, plus (+) and minus (-) buttons are used. The cursor blinks while it is moving on the scale. When you are on the first ID that you want to reject, press the SELECT button once. This ID is now rejected and it is shown on the screen with a line. If you want to reject multiple IDs, continue to press the plus (+) or minus (-) button. If non-consecutive IDs are to be rejected, push the SELECT button once to have the cursor blink for navigation on the scale and repeat the process above. The cursor will appear where you left it the next time you use the NOTCH.
To give an example; let’s say you want to reject IDs between 20-25 and the cursor is at 10. Press the plus (+) button until you reach number 20. Then push the SELECT button once. Number 20 will be marked with a line. When you reach number 25 using the (+) button again, IDs between 20-25 will be filtered out and they will be shown on the ID scale with 4 lines (every 2 consecutive IDs are represented with 1 line).
To accept back the filtered IDs, select NOTCH from SETTINGS. The cursor will appear where you last left it. Using the plus (+) or the minus (-) button, select the ID you want to accept and push the SELECT button. Then, using the plus (+) or minus (-) button again, unfilter the IDs back in. 1 line will be erased for every 2 consecutive IDs accepted.
You can also enable the device to emit a low iron tone for your notched out target IDs instead of silencing them. To do this, select NOTCH V. from SETTINGS. Then set the volume of the iron tone for the targets you notched out by using the plus (+) or the minus (-) button. 05 is the maximum level and the iron volume will be reduced as you go down.
If you prefer to get a different tone for the notched out IDs instead of the iron tone, you can change the tone of the iron zone – Z1- by using the TONE setting. Please remember though, the device would then emit an iron tone for all targets of which the IDs fall in the Z1 zone. For more details, please read the sections about these settings.
Iron Volume (Fe VOL.)
This setting is present in the Anfibio 19 model only.
It adjusts or turns off the volume of the low iron tone. It can be adjusted between 0-5.
0-5: 5 is the maximum level. As you lower it, the audio response volume the device produces for ferrous metals will decrease. At 0 level, the iron audio will be silenced. In other words, the device will detect ferrous targets, the Target ID will be displayed on the screen but the device will not produce any audio response.
Fe VOL. adjustment applies to the selected search mode only. The change does not affect the other modes.
Allows you to change the audio frequency of the target audio response tones and the threshold sound according to your preference. There are 5 pre-defined metal zones in the Anfibio. They are shown as Z1-Z2-Z3-Z4-Z5 on the screen. The number of metal zones displayed vary according to the model of the Anfibio as well as the selected mode. By using the TONE feature, you can adjust the frequency of the audio for each metal zone between 150 Hz (15) and 800 Hz (80) in the Anfibio Multi and Anfibio 14 models and between 150 Hz (15) and 700 Hz (70) in the Anfibio 19.
When TONE is selected from the SETTINGS, names of the metal groups mentioned above will appear at the bottom of the screen and the selected one will be framed. To select another group, just press the SELECT button. Then use the plus (+) or the minus (-) button to change the audio frequency.
TONE setting is available in all modes except for the 99 TONE mode present in the Anfibio Multi and Anfibio 14 models and the GEN Delta mode of the Anfibio Multi. TONE adjustment applies to the selected search mode only. The change does not affect the other modes.
Tone Volume (TONE V.)
This setting is present in the Anfibio Multi and Anfibio 14 models. It is not present in the Anfibio 19 model.
There are 5 pre-defined metal zones in the Anfibio. They are shown as Z1-Z2-Z3-Z4-Z5 on the screen. The number of metal zones displayed vary according to the model of the Anfibio as well as the selected mode. By using the TONE V. feature, you can adjust the volume for each metal group between 0-5.
When TONE V. is selected from the SETTINGS, names of the metal zones mentioned above will appear below the TARGET ID indicator and the selected one will be framed. To select another group, just press the SELECT button. Then use the plus (+) or the minus (-) button to change the audio frequency.
TONE V. setting is available in all modes except for the GEN, GEN Delta and CACHE modes present in the Anfibio Multi and Anfibio 14 models. TONE V. adjustment applies to the selected search mode only. The change does not affect the other modes.
Tone Break (T.BREAK)
It is used to adjust the break points of the target response tones on the Target ID range. Default Tone Break points in the Anfibio will vary according to the model of the Anfibio as well as the selected mode. There are 5 pre-defined metal zones in the Anfibio. They are shown as Z1-Z2-Z3-Z4-Z5 on the screen. You can change the point where the low tone changes into the higher tone.
To use the Tone Break feature, first select T.BREAK from SETTINGS . The names of the metal groups mentioned above will appear at the bottom of the screen. The Tone Break point of the metal group will be shown on the screen numerically while the cursor at the top will point to it on the ID scale.
The number of tone break points will vary according to the mode. To select the metal zone, just push the SELECT button. Selection will be framed. To change the value of the break point, plus (+) or minus (-) button is used.
To give an example for the above explanation; let’s say you are in the 3 TONE mode and you want to change the Tone Break points. First, select T.BREAK from SETTINGS. Z1-Z2 metal zones will appear at the bottom of the screen and Z1 will be framed. The default value of 15 will also be displayed on the screen.
Using the plus (+) or the minus (-) button change this number to any value you want. Let’s say you increased it to 40. Then, push the SELECT button once to select Z2. Let’s say you decreased the default value of 66 to 50. In this case, the device will produce a low iron tone for all metals with IDs equal to or less than 40, a medium tone for metals with IDs 41-50 and a high tone for metals with IDs greater than 50 (If you have also adjusted the audio tones (TONE), the selected frequency will apply to the new ID ranges).
T.BREAK adjustment applies to the selected search mode only. The change does not affect the other modes.
IMPORTANT! If you are using the Standard ID scale in the multi Anfibio and you change the operating frequency of the device, you may need to re-adjust the T.BREAK points according to the IDs you will get in the new frequency.
In the General Search Modes (GEN and GEN Delta), search is performed with a continuous humming sound in the background, also referred to as the threshold sound. The loudness of this hum directly impacts the detection depth of smaller and deeper targets and it is adjusted by the threshold (THRESH.) setting. If the threshold is set too high, a weak target signal may not be heard. On the contrary, if the threshold is too low, you give up the depth advantage this setting offers. In other words, weak signals of smaller or deeper targets may be missed. It is recommended for average users to leave this setting at its default value and for experienced users to adjust to the highest level where they can still hear the weak target signals.
Threshold level is directly related to the GAIN and iSAT settings. Please be sure to read the related sections of the manual carefully.
iSAT (Intelligent Self-Adjusting Threshold)
iSAT in General Search Modes (GEN and GEN Delta)
For the General Search Modes (GEN and GEN Delta) to perform accurately, a stable threshold sound is necessary. You cannot search in the General Search Mode without ground balancing. Changes that occur in the soil structure and mineralization levels after ground balancing, may cause a rise or fall in the background hum and disrupt the threshold’s stability which will result in false signals and thus missing signals of small metals. iSAT adjusts the speed that the device recovers its threshold hum and eliminates the negative effects of mineralized soils. Increasing the iSAT in high mineralization will enable a more stable operation by avoiding false signals. This, however, may cause some loss in depth and it is normal.
NOTE: In high mineralization, if you receive too many false signals without disruption in the threshold hum, lower the gain first before increasing the iSAT. If the false signals continue, set the gain back to its original value and increase the iSAT.
If the mineralization is low, you can decrease the iSAT and sweep the coil more slowly for a deeper detection.
iSAT consists of 10 levels. The device will start at level 6. It is recommended that iSAT should be increased in high-mineralization and decreased in low mineralization.
iSAT in Discrimination Modes (Named as iMASK in Anfibio 19)
It is used to eliminate false signals caused by ground noise or hot rocks when searching in discrimination modes and the available range is between 00-10. Its factory default value is set to (1). You can change the value using the plus (+) and minus (-) buttons.
If the device receives a lot of false signals due to highly mineralized soil or hot rocks in the discrimination modes, first re-ground balance. If the false signals continue, lower the GAIN and check again. In case the false signals still exist, try increasing the DISC. value. Regardless of all these, if the false signals still exist, first change the GAIN and DISC. values back to their previous levels. Then, increase the iSAT level until the false signals are eliminated.
At the maximum level of iSAT, false signals will disappear or will be minimized. However, in some cases, increasing the iSAT will result in loss of depth for certain metals such as copper.
NOTE: When using the Anfibio 19 or the 20kHz of the Anfibio Multi on wet or highly mineralized ground, in order not to miss smaller high conductive metals (silver, copper etc.) it is recommended not to increase the iSAT level too high.
NOTE: iSAT value ranges between 00-10. The factory default is 01. At ”0”, the iSAT feature will be inactive. If the ground is not highly mineralized or does not contain many hot rocks, setting the iSAT to ”0” is recommended.
iSAT in CACHE Mode of Anfibio Multi
Because CACHE mode is a non-motion mode, the function of iSAT in this mode is different. iSAT in CACHE mode is used to eliminate the threshold drifts caused by changes in the ground and temperature. Threshold drifts will be reflected in the ID scale either in the positive way (right side) or the negative way (left side).
When the threshold drifts, press the PP button once to retune the detector first. If the drifts are substantial and retuning does not improve the situation, increase the iSAT setting to a level where the drifts are eliminated. As the iSAT is increased, the device may detect weaker signals but will not be able to detect the targets anymore if you hold the coil stationary or sweep back and forth over the target.
iSAT value ranges between 0-10. The factory default is 3 in CACHE mode. At ”0”, the iSAT feature will be inactive. If the ground and environmental conditions do not cause any drifts in the threshold, setting the iSAT to ”0” is recommended.
Anfibio User Manual : https://www.noktadetectors.com/anfibio-user-manual/
Anfibio Series : https://www.noktadetectors.com/anfibio-series/