What to do if the frequency cannot be set on Icom IC-E2820?
If you cannot set the frequency on your Icom Transceiver, it might be due to the frequency lock function being activated; turn it OFF. Another possibility is that the priority watch is paused on the watching frequency; push [LOW•PRIO] for 1 second to cancel the watch.
What to do if the frequency cannot be set via the microphone on Icom Transceiver?
If you are unable to set the frequency via the microphone on your Icom Transceiver, first ensure that the frequency lock function is turned OFF. Also, check if the microphone keypad lock function is activated and deactivate it by pushing [FUNC] then [sqlZ #(16KEY-L)]. Finally, verify that the priority watch is not paused on the watching frequency; if it is, push [LOW•PRIO] for 1 second to cancel the watch.
What to do if Icom IC-E2820 Transceiver does not turn on?
If your Icom Transceiver does not turn on, there could be several reasons. First, check the connector pins for poor contact. Second, ensure that the polarity of the power connection is correct. If the issue persists, the fuse might be blown; replace it if damaged, and investigate the cause of the blown fuse.
Why is there no sound coming from my Icom IC-E2820 speaker?
If no sound is coming from the speaker of your Icom Transceiver, try the following: ensure the volume isn't too low by rotating [VOL] clockwise. Check if the audio mute function is activated and deactivate it by pushing any key. Also, verify that the squelch isn't set too high; adjust it to the threshold. Finally, check if a selective call or squelch function, like pocket beep or tone squelch, is on and turn it OFF.
Why is the sensitivity low on my Icom Transceiver and only strong signals are audible?
If the sensitivity is low on your Icom Transceiver, and only strong signals are audible, it could be due to a poor contact or short circuit in the antenna feedline or connector; check and replace the feedline or resolder the antenna connector if necessary. Also, check if the squelch attenuator function is activated and set [SQL] between the 10–12 o’clock position.
What to do if scan does not operate on Icom IC-E2820?
If the scan function does not operate on your Icom Transceiver, ensure that the squelch is set to the threshold point. Also, check if only one memory channel is programmed or if other channels are set as skip channels; program other memory channels or cancel the memory skip function in the desired channels. Finally, verify that priority watch is not activated and cancel the watch if it is.
Why is no contact possible with another station on my Icom Transceiver?
If you cannot contact another station with your Icom Transceiver, it might be because the other station is using tone squelch; turn the tone squelch function ON. Also, check if your transceiver is set to duplex and set it to simplex instead.
What causes Icom IC-E2820 Transceiver transmission to be automatically cut off?
If the transmission on your Icom Transceiver is automatically cut off, the time-out timer may be activated. Set the timer to OFF.
Why does Icom IC-E2820 transmission continue even when the PTT is released?
If the transmission continues even when the PTT is released on your Icom Transceiver, the one-touch PTT function may be activated. Turn the function OFF.
How to fix Icom Transceiver repeater access issues?
To fix issues accessing a repeater with your Icom Transceiver, verify that the correct offset frequency is programmed and correct it if necessary. Also, ensure that the correct subaudible tone frequency is programmed and adjust it if needed.
General| Output Power | 50W (VHF), 35W (UHF) |
|---|---|
| Modulation | FM |
| Power Supply | 13.8 V DC |
| RF Power output | 50W (VHF), 35W (UHF) |
| Mode | FM |
| Receiver Sensitivity | 0.16 μV (12dB SINAD) |
| Audio Output | 2 W |
Crucial warnings and precautions for safe operation and handling of the transceiver.
Covers frequency coverage, memory channels, operating temperature, and power requirements.
Details on transmitter output, deviation, and receiver sensitivity and selectivity.
Top and bottom view layouts of the main unit printed circuit board.
Instructions for removing the transceiver's top cover, bottom cover, and main unit.
Detailed description of receiver RF circuits for various frequency bands and IF stages.
Description of demodulator, squelch, and audio frequency circuits.
Description of microphone, transmitter, APC, and power amplifier circuits.
Explanation of frequency synthesizer VCOS and PLL circuit operation.
Description of the transceiver's power supply distribution and regulation circuits.
Details the allocation and function of CPU ports for various controls.
Required equipment, JIG cable, and steps to enter adjustment mode.
Procedures for adjusting frequency and transmit output power.
Procedures for adjusting deviation and modulation balance for FM and DV modes.
Procedures for adjusting receiver sensitivity, S-meter, and squelch.
Procedure for adjusting the diversity reception parameters.
List of electrical components and parts for the control and main units.
Lists mechanical parts for chassis, main unit, and control unit.
Lists included accessories and physical dimensions for the HM-133 microphone.
Top and bottom view layouts of the main unit printed circuit board.
Board layouts for HM-133 microphone, VR1, and VR2 units.
Block diagram illustrating the functional blocks on the left side of the transceiver.
Block diagram illustrating the functional blocks on the right side of the transceiver.
Voltage distribution schematic for the control unit.
Voltage distribution schematics for various sections of the main unit.
List of electrical and mechanical components for the HM-133 microphone.
Physical dimensions and voltage diagram for the HM-133 microphone.
Voltage diagram and parts list for the optional UT-123 unit.
Board layout diagrams for the optional UT-123 unit.
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