เครื่อง J ครับ........อยู่ในร่องในรอย
รับทราบครับ งั้นช่วยขายครับ ท่านใดซื้อไป ลองดูครับ ผมไปหาจากเว็ป ตปท มาให้ เปิดแบนด์ TX และ RX ครับ
(IC-820) ICOM IC-820H extended receive/transmit modificationThis modification is to open the IC-820H for extended receive (and transmit) operation. This is a two (four) step modification
which will open the IC-820H to the following frequencies:
VHF Band 136 - 174 MHz
UHF Band 420 - 460 MHz
These frequencies are not guaranteed for accuracy or sensitivity.
1. Remove Diode D25 on logic board for VHF RX Expansion.
2. Remove Diode D26 on logic board for UHF RX Expansion.
3. Remove Diode D27 on logic board for VHF TX Expansion. *
4. Remove Diode D28 on logic board for UHF TX Expansion. *
* RX modification must be done before the TX modification will work. *
หรือจะ CRoss band ก็ได้ครับ ลองดูครับ
(IC-820) ICOM IC-820H cross band repeat modificationAdd a diode on the blank position between D27 & D28 on the Logic Board. The part is 1SS353 P/N 1750000390.
After hardware modification
1. Set lock mode. Push [LOCK]
2. Turn Power off.
3. Hold [M/S] and turn radio on.
4. Turn repeater off. Push [LOCK].
Note: If you removed Diode D25 or Diode D26 in the first modification then it can be used in the second modification as it is the
same part.
