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From: Bryan Fields, KB9MCI kb9mciSubject: This Posting Contains Three Mods For The ADI AR-247 They are extended frequency coverage, S meter adjustment and, changing between hold scanning and 3 second scanning. This is version 1.3 of the 247 mod guide. I plan to update this when I find out other mods for this radio. Out of Band Modification For the ADI AR-247 Extend Receive and transmit from 205.000 MHz to 239.995 MHz. STEP MOD 01: Take off the bottom cover it may help to remove both covers, like other ADI radios, there is a red wire that is about 1 inch long in the front of the radio. Cut this wire and seal the ends so it does not short out the microprocessor. STEP MOD 02: Reset the radio by holding the VFO key and powering the radio on, turn the radio off and then reset the memory by holding the MR / M key while powering the radio on. Your radio should now receive and transmit from 205-239.995 MHz. NOTES: You may have to reset the radio a few times to get it to work, but it will. I have done this to my radio and it works fine. S METER MOD: The S meter on the 247 is not even remotely actuate. It reads what should be a S-2 signal to be a S-9 signal. By Turing the Pot VR-1 it is on the main board next to the VCO to the left, you can make the meter read more accurately. Though the meter still reads high, it is the best thing that can be done short of changing a resistor in the radio. I may do this in the future but for now I just decided to live with it. Hold / Resume programming How to do this in the manual is very sketchy. The wording is in very broken English. Here is how the manual says to do it on page 20 section 5-5-2:1. Press the F key for longer than 1 second. The F indicator will Flash 2. Within 10 seconds of pressing the F key. This will toggle the Scan / Resume mode to carrier operated mode. And B indicator will be on. Their procedure does not even tell you what key you have to press. Here is how to do it. MOD STEP 02: Press the F key for one second. MOD STEP 03: Tap the F key A B will appear over the hundreds place in the display. I think ADI should have the manual retranslated to English here in America. This would prevent misunderstandings from harping. That's all for now. If you discover any other mods please email me ... Happy tweaking, Bryan Fields, KB9MCI kb9mci SOURCE: THE QRZ WINDOWS HAM RADIO CDROM |
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