Re: Japan version needing frequency expansion on 2m/440
¿ªÔÆÌåÓýAndrew, ? I wish there was a universal way to communicate this to all: ? Domestic Japanese amateur radio units are blocked at the CPU level to only be able to transmit on Japanese amateur radio bands.? There is no way of opening the bands short of replacing the CPU. This is because of Japanese law. This is true for VHF and UHF.?? I understand that some have figured out how to open frequencies on HF, but this is unconfirmed. ? Export units have their own frequency bands depending on the country , but they can be modified for extended transmit.? That is, the EU radios have frequency restrictions somewhat similar to the domestic Japanese units, but the EU radios can be modified to operate frequencies that are available to us in Region 2 (i.e. extending 144-146 MHz to 144-148 MHz. ? My assumption on the Japanese newer units is that if new amateur radio frequencies are available in Japan, that ICOM could potentially add them by a firmware update, but this is only a guess. ? ¡®73 de Jim N2ZZ ? From: [email protected] <[email protected]> On Behalf Of Andrew K5KNM via groups.io
Sent: Saturday, January 25, 2025 10:29 AM To: [email protected] Subject: [ic7000] Japan version needing frequency expansion on 2m/440 ? Hello all! I recently purchased the Japan version of the IC-7000 for use in my my shack while my other USA version one will stay as a mobile. Of course there are some difference in frequencies between this one and the USA version. Mainly the 2m/440 bands is where the most differences are . On this model, 2m is only 144 to 146 mhz and 70cm is 430 to 440 mhz. . It appears the typical MARS mod does not expand these 2 bands to get the full US frequencies. I would like to expand these 2 bands so I'm asking here if anyone knows if this possible and what would be the procedure be. Thanks! ? 73 Andrew K5KNM |
James F. Boehner, MD