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發表於 2012-1-16 19:41:28
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http://bv3fg.tripod.com/cqm/03/03089.htm ICOM IC-2410H 使用說明
修改資訊.....
(IC-2410) Expansion of receive range
The following diodes are located on the Logic Unit circuit board. The Logic Unit circuit board sits behind the front panel of the
radio. To get to the board remove the top and bottom of the case. Now notice that the front section of the radio is a separate
unit from the main body of the radio. Remove the 4 screws holding the sections together but do not yet separate the sections.
Place the radio on a table so that it is right side up. Carefully start to separate the sections being careful of ribbon cables that
connect the front section of the radio to the rear. If you look at the back of the circuit board on the front section towards the
lower part of the radio, you will clearly see three glass diodes labeled D8, D9 and D10. You will know this is the right circuit
board because a lithium battery will be taped to it. These are the diodes to cut to get extended receive range as follows:
D8 320-399, 830-950 800 Mhz coverage requires new antenna input
D9 118-135
D10 400-479
(IC-2410) 800 MHz antenna input
To receive 800 Mhz you need to add a new antenna input to connector J2 on the MAIN-B unit (UHF unit) which is the large circuit
board on the bottom of the radio. J2 connects to a the B-band board which is a very small daughterboard, that is connected to
the MAIN-B board. The service manual offers no description of this board but it apparently is the 800 Mhz front end.
Two parts are needed:
One 5 3/4" grey coax jumper (this is available from ICOM but it doesn't have a part number)
Either:
One OPC223 pigtail with UHF connector
or
One OPC166 pigtail with N connector
The grey coax jumper has a plug on one end that mates with J2 and bare leads on the other. The pigtail also has two bare leads
on one end. This same end also has a metal flange thats designed to screw onto the back panel of the radio after removing one
of the dummy caps on either side of the existing antenna pigtail.
Without going into too much detail, you must:
Remove the small metal cap nearest the bottom of the radio and next to the existing pigtail.
Remove the metal shield at the back section of the Main-B unit.
Solder the two pieces of coax together, shield to shield, center to center and screw this assembly on to the back panel.
Plug the grey cable into J2 and then reassemble the radio.
(IC-2410) Cross-band repeat
An edited version from an ICOM info sheet)
1. Set frequencies for both UHF and VHF. If necessary, set transmit offset and tone.
2. Hold the "BAND" switch and the "SET" switch. The memory number display will flash the letter "L". This indicates the 2410
is in the "Mini Repeater" mode.
3. Transmission by PTT is possible. If PTT is operated, the band which is indicated by the flashing decimal point will be
transmitted on. This can be done even when in "Mini Repeat" mode. In other words, PTT has priority over the "Mini Repeat"
operation.
Transmitted band will be switched by the "UP" or "DN" key on the microphone. The flashing decimal point will indicate
which band will be transmitted on.
4. Mini Repeater function will remain even when power is turned off. To disable repeater function, hold the "SET" key until the
flashing "L" disappears.
Remote cross-band activation
To activate cross-band repeat remotely: after dialing "B", optional 3 digit code then "#", the command for cross-band repeat on
is "B", "D", "*".
To turn off repeat, dial "B", optional 3 digit code, then "#".
(IC-2410) IC-2410 Dual Band External & Mike Remote Codes
Call MR VFO CLR
1 2 3 A
VHF UHF High Acs
4 5 6 B
Vmoni Umoni Low Spch
7 8 9 C
Dwn Mute Up Ent
Please enter a blank line to continue, anything else to halt output
* 0 # D
Other Functions
B# or B???# = External On (?=password) Further protection used Tone/Squelch
B* = External Off
DB* = CrossBand On
DB# = CrossBand Off
DC = Speech Transmit Freq.
Notes
l 4,5,7,8,0 Function not available via External Remote Control????
l C Function not available when in CrossBand Mode????
l Display debate, don't know why the original display was boycotted, but I seen both & had a choice. I preferred the original,
lovingly refer to, as stealth. Think twice, before you get the other one.????
l There are diodes to be installed for some features, like transmit in Please enter a blank line to continue, anything else to
halt output rest of UHF ham band (420-450) and extended receive..etc. Check your local authorities, regarding scanning
laws.
This modification is read 709 times. top of page
19-07-1998
(IC-2410) IC-2410 Modification area as follows. New and old version
For OLD version
1.
Turn on the radio wtih pressing [V/MHz] + [SET] + [DN]on microphone.
That's All!!!
X-band reperter modification
Cut diode [D2] on back side of front panel.
Press [BAND] + [SET] more than 1 sec. cancel => press [SET] more than 1 Sec.
For NEW version
1. SEE THE BACK SIDE OF FRONT PANEL.
2. YOU CAN FIND Li BATTERY.
3. CUT [W27] or [D10] & [D8]
4. Reset the radio.
After modification , you can recieve
118 - 135.995MHz AM
136 - 174MHz
320 - 479MHz
830 - 950MHz
But 830 - 950MHz , you need to add ant for this band. open the lower panel , you can find [J2] ant connector.
This modification is read 717 times. top of page
19-07-1998
(IC-2410) IC-2410 TX modification
Both bands
Replace the one sided D-14 on the logic board with a 1SS181 two sided diode, and short the solder tabs (position W3) which are
directly below the location for D-14.
Result:
136-174 Mhz tx
400-479 Mhz tx
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發表於 2012-1-16 19:27:43
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