I haven't used a programmer from RF Guys but I have been down the same road of misery of trying to figure out why a similar programmer wouldn't work. These are built on perfboard correct?
You'll find pages on the web about how folks have handwired one of these things up with a latch chip and they work fine. I found out that "your mileage may very". Apparently, the variances in these circuits along with different flavors of latch chips can prove to be quite problematic as far as generating errors on the eproms. I gave up on my nicely hand-wired yet non-functioning version built by following a webpage by KG4LNE, and bit the bullet and bought his high quality PCB instead. Loaded my parts on it, and it works like a champ. Cost is higher though, of course. My only real gripe is wishing I hadn't gotten sucked into rolling my own and wasting a whole bunch of time. Moral of the story: These general types of programmers can be a lot more problematic than a guy might be led to believe. 73 Paul - KC0HST ----- Original Message ----- From: "w4wsm" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, December 14, 2007 3:30 PM Subject: [Repeater-Builder] RF Guys Chip Programmer problem Just got a programmer to burn GE chips. I've tried it on 4 different computers now and all kinds of printer port settings. It will act like it is burning but when I verify it just shows errors. Put the chip back into the radio and it hasn't changed...any ideas? The people I bought it from in Canada aren't saying much...guess I'll have to ship it back to let them check it but thought I would try one last time here... Ben Yahoo! Groups Links
