|
Sniffer
MK3
|
Sniffer
MK4
|
MicroSniffer
|
Frequency Range
|
140-149.995MHz
|
120-122.995MHz, 143-149.995MHz
|
144-148MHz.
|
Channel bandwidth
|
26KHz
|
16KHz
|
16KHz
|
Sensitivity
|
-110dBm
|
-120dBm
|
TBD (better than -115dBm predicted)
|
Max signal level
|
+10dBm
|
+24dBm
|
TBD (better than +20dBm predicted)
|
Attenuation Ranges
|
7 (15dB/step) |
9 (15dB/step)
|
9 (15dB/step)
|
Range display
|
7 segment LED
|
Dual intensity 7 segment LED
|
13 x high intensity LED
|
Memories
|
10, fixed
|
6, programmable
|
6, programable
|
Receive modes
|
RSSI (Signal Strength Tone) only
|
AM, FM, RSSI (signal strength Tone)
|
RSSI (Signal strength Tone) only
|
Max RSSI frequency
|
2KHz approx
|
programmable 2KHz or 8KHz
|
TBD
|
Antenna connector
|
user supplied
|
BNC
|
user supplied
|
Headphone conection
|
user supplied
|
3.5mm stereo
|
user supplied
|
Speaker
|
user supplied
|
27mm, OBO Seahorn polypropylene
|
user supplied
|
Volume control
|
fixed
|
10 levels
|
fixed
|
Low battery warning
|
7.5V approx
|
2.5V
|
2.7V
|
Power Supply
|
9V alkaline 216 or PP6
|
2x1.5V AA alkaline or lithium
|
3V (2xAA 1.5V lithium or alkaline)
|
Receiver Type
|
Dual conversion superhetrodyne
|
Dual conversion superhetrodyne
|
Single conversion, low IF, image reject
|
ARDF Timer
|
none
|
1 minute cycle sync button
|
1 minute cycle power-up option
|
Continuous operation Battery Life (typ)
|
2 Hours
|
3+ Hrs alkaline, 14+ hrs Lithium
|
TBD (4+hrs alkaline, 14+hrs lithium predicted)
|
Keypad
|
User supplied
|
13 key water resistant tactile lexan
|
12-key matrix
|
Power switch
|
User supplied
|
Internal (with 10-minute no activity auto
powerdown)
|
Internal (with 10-minute no activity auto
powerdown)
|
size
|
61mm (W), 66mm (H), 17mm(D) PCB and components
only
|
76mm (W), 80mm (H), 25mm (D) not including
antenna connector
|
62mm (W), 68mm (H), 12mm (D) PCB and components
only.
|