Pipo Communications

PK-3 E1 v6.5

DTMF Encoder Keyboard, 9 Memories, Optional Mounting Frame

PK-3, 12 Key E1 v6.5
PK-3, 16 Key E1 v6.5
PK-3, 16 Key E1 v6.5

Features:

• 12/16 Keys
• DTMF Memory Dialing 9 Memories
• Steel Keys
• DTMF Store & Send
• Sealed Gold Dome Contacts
• Contacts with Positive Feed-Back / Tactile Feel
• Water Resistant / Dust Proof
• DTMF Single Tone Generator
• Variable Single Tone Generator (50Hz to 5KHz)
• One Touch Send (OTS)
• Level Output Pot Adjustable
No DTMF Frequency Error
• High or Low Impedance Output
• Wide Voltage Operating Range (6 to 26 VDC)
• Sounder / Piezo Output (Available) for Side Tone
• Wide Temperature Operating Range (-22°F to +160°F)

Specifications:

Power: 6-26 VDC
• Current: less than 600 μA Stby, 8 mA Operate
Temperature: -22°F to +160°F
Memory: 9 Locations, up to 30 Digits Each, Store & Send, Last Number Redial
Audio Output: Adjustable -2 dB Max @ 600 Ohms
Unbalanced Audio Output Level Hi-Z: No Load = 0 dBm (775mV RMS = 2Vpp)
Unbalanced Audio Output Level Hi-Z: 600 OHMs Load = -40 dBm
Unbalanced Audio Output Level LOW-Z: 600 OHMs Load = +1 dBm (51K Jumped)
Distortion: Less than 2%
High Speed Signaling: 5 DPS (100/100 mS), *Default: 10 DPS (50/50 mS), 20 DPS (25/25 mS)
PTT Send Delay: 800 mS
PTT Hold Delay: 1 sec

Prices:

• PK-3 12 E1 v6.5: $79.00

• PK-3 16 E1 v6.5: $84.00

SMART DTMF ENCODERS BASIC INFO

INSTRUCTIONS & TECH LEVEL PROGRAM

PK-3 E1 v6.5 SCHEMATIC & PCB PLACEMENT

PIPO DTMF ENCODER PROGRAMMER v6.5

PK-3 E2 v6.5

DTMF Encoder Keyboard, 9 Memories, W/ Sounder, Audio Mute, PTT Transistor, Optional Mounting Frame

PK-3, 12 Key E2 v6.5
PK-3, 16 Key E2 v6.5
PK-3, 16 Key E2 v6.5

Features:

• 12/16 Keys
• DTMF Memory Dialing 9 Memories
• Steel Keys
• DTMF Store & Send
• Sealed Gold Dome Contacts
• Contacts with Positive Feed-Back / Tactile Feel
• Whether Resistant / Dust Proof
• DTMF Single Tone Generator
• Variable Single Tone Generator (50Hz to 5KHz)
• PTT Keying Transistor
• One Touch Send (OTS)
• Level Output Pot Adjustable
No DTMF Frequency Error
• High or Low Impedance Output
• Wide Voltage Operating Range (6 to 26 VDC)
• Sounder / Piezo for Side Tone
• Wide Temperature Operating Range (-22°F to +160°F)

Specifications:

Power: 6-26 VDC
• Current w/ Transistor: less than 600 μA Stby, 8 mA Operate
Temperature: -22°F to +160°F
Memory: 9 Locations, up to 30 Digits Each, Store & Send, Last Number Redial
Audio Output: Adjustable -2 dB Max @ 600 Ohms
Unbalanced Audio Output Level Hi-Z: No Load = 0 dBm (775mV RMS = 2Vpp)
Unbalanced Audio Output Level Hi-Z: 600 OHMs Load = -40 dBm
Unbalanced Audio Output Level LOW-Z: 600 OHMs Load = +1 dBm (51K Jumped)
Distortion: Less than 2%
High Speed Signaling: 5 DPS (100/100 mS), *Default: 10 DPS (50/50 mS), 20 DPS (25/25 mS)
PTT Send Delay: 800 mS
PTT Hold Delay: 1 sec

Prices:

• PK-3, 12 Key E2 v6.5: $84.00

• PK-3, 16 Key E2 v6.5: $89.00

SMART DTMF ENCODERS BASIC INFO

INSTRUCTIONS & TECH LEVEL PROGRAM

PK-3 E2 v6.5 SCHEMATIC & PCB PLACEMENT

PIPO DTMF ENCODER PROGRAMMER v6.5

Last Updated: 10/28/2025 - 12:35 PM PST