... -snip- ... -snip- Did you ever see that operator manual Mark? I've been digging but still can't find it. I see in the files section there is an operator ...
Hi Peter, I wouldn't bin the board just yet 8-) I'll apologise in advance if you have already tried some of these things.. Check the Eprom to see if selcall...
No, sorry, couldn't find the on-line FM92 manual again. A lot of the FM91 manual is the same, except of course for the head and the full duplex stuff, and a...
Hi Daniel, Before you can do anything you'll need a programmed EPROM. Do you know anyone that has a programmer and UV-eraser? Next you need a IBM style PC...
Hi I've been a group member for a while but haven't needed to seek help until now. I bought a second FM900 a few weeks ago. The Ham I bought it from told me it...
i have moded radio to do 10khz and may even be able to do 5khz but can the fm900 prog be moded to do 5/10khz. in the hardware code ie "9502 925 [8]0250" you...
Hello Group, Just an update for the conversion of the ex MAS T banders to 70 cm... After my programmer died ( and procuring a new one ) I set up some 70cm...
... cm... ... some ... it... ... TX ... It ... frequency... ... apart ... parallel ... at ... Thanks Eeprommemory, After pulling apart the VCO I could see what...
Hi Rob, Take the time to brush up on your regs and go and see the assessor at your local club. He can arrange for you to sit your AOCP. You won't regret it. ...
I nearly forgot, there is one gotcha... I've got a birdie on channel 74 which I've programmed to 439.850 Rx ( and 434.850 Tx )... But that's about it... When I...
Thanks Lou, I've sent you an email with some questions 8-) Rob. _____ From: FM900@yahoogroups.com [mailto:FM900@yahoogroups.com] On Behalf Of Lou Blasco Sent:...
We have for sale approx 20 E Band fm-92 radios heads and cables some head bracket and radio mounts Alan Ph 0408593211 [Non-text portions of this message have...
Hi Rob Haven't had a look on the group for a little while but noted your posting.. I recently programmed a U band local unit and got the same result, in that...
Hi Chris, Good information about programming the radio as a T to get rid of the birdie The 92 is a remote and I programmed it as a U bander Cheers, Rob. _____ ...
Thanks Rob Hmm, for this to work the programmable divider range would have to change between U and T bands, so a different divide by N number would be loaded...
Hi again Rob, yes have noticed the same.. I've always tuned PA's for minimum current (tube or trannie) and then gone for that little bit more.. You really need...
439.850MHz divided by 21 is 20.945238 MHz. Sound familiar? Yep, your birdie is likely to be a harmonic of the 20.945Mhz crystal oscillator that's driving the...
Thanks Chris, Luckily I didn't have to touch any of the links on the board, the software did it for me 8-) Cheers, Rob _____ From: FM900@yahoogroups.com...
Yes Chris I agree, Things were very ugly when I was starting to tune the PA up, it looked like a comb ( across about 800 MHz ) with some of the peaks only 10db...
Thanks Mark, Yes it's a Mk 2 set. I figured it may be something like the I.F, the image or even one of the CPU's / oscillators causing it but didn't go any...
Hi Rob, I was lucky enough to find a high side crystal in an old FM828. Don't know if it's spec'ed for the same loading in the '900 oscillator circuit, but I ...
Thanks Mark Sounded perfectly logical to me and I did feel a bit silly not getting onto this!! The thing that was throwing me is that both of my converted...
Re last: I should add that the IF LO in the FM900 is derived from the PLL - VCO output via a splitter arrangement.. So the whole box an dice was off frequency....
Why do I do this?! Was just putting the radio back together (after sending my last post) and noticed that my so labeled W1 has a U band VCO (just visible ...
Hi Chris, Only the first IF LO comes from the PLL, so changing the VCO band shouldn't change the birdies. I suspect that the two radios are different...
Hi Nick, Did you fix this problem? Sounds like the synthesiser is working OK, but not getting through the PA and antenna switch to the antenna socket. First...
Hi Mark  I haven't had a chance to look at it since I posted my message.  Thanks very much for the pointers - I'll have a fiddle with it over the next...
I have read practicaly every post from post 1-6000+ took me a while :-). Anyway my question is, somewhere along the line I read that there was talk about some...
Hi I can't say I've ever heard of that mod for the FM92 or FM93. The usual way to do it on those models is to put in a larger EPROM with an external 'bank' ...
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