FM900: Group Rules Note: <this message is sent once a month to all members> 1. No spam 2. No Flames 3. No cross posts, especially non FM900 related 4. Try to...
FM900@yahoogroups.com
Aug 1, 2005 5:38 pm
5042
Hi, I just installed the "TWO" resistors into my converted 92 now 91 & it now appears to work fine. I will see how it goes on a hot day (when we get one). The...
Hello, I'm after the pinout for the following on a FM92 (uhf) radio, sk406 & sk406?. They are the connectors on the pcb for the microphone and speaker. The...
Stephen, Look for Figure 7.1 from the FM900 service manual (I think there is one in the FILES section of this yahoo group). It's a simplified schematic showing...
Hi all, I'm curious as to the inner workings of the remote head on the FM900s. I've actually considered hacking together a smaller replacement or something and...
A lot of people have considered making a smaller head for the 92, but I'm not sure anyone actually finished their projects (mine's still buried in the...
You will find, I think, quite a few posts on this topic if you search the archives for this group. More than one person has been fired up by the quest for a...
Hi, I am after help/advice on the setup required to set a fm91 selcall options for use with standed uhf cb's. I use the set in the bush with others & require...
FM900: Group Rules Note: <this message is sent once a month to all members> 1. No spam 2. No Flames 3. No cross posts, especially non FM900 related 4. Try to...
FM900@yahoogroups.com
Sep 1, 2005 6:36 pm
5051
hi am acme, iv bort a pye fm 900 miltey radio at a miltey fair the trancever is a fm92 or 97 i think its on e band (6m) and was wondering if it could be tunded...
The E Band will not be any use for UHF. It will cover 66 to 88 mhz by reprograming. It is possible to convert an E band to 50 mhz with a lot of trouble. Barr ...
Welcome Barry, This email is intended only for the use of the individual or entity named above and may contain information that is confidential or privileged....
hi all. was wondering if anybody could help. i have a fm900 set up for 2 metres. i have aquired a IQD MICROPAD mic with dtmf. It has the rectangle moulded...
Hi Robert, you may have already done this: but just in case .... compare the pin out of the mic to the pin outs on the radio to see if there is any mismatch ...
Hi Robert, By 'Rectangular Plug' I guess you are talking about the custom black moulded plug that plugs into the front of the control panel - the ones that are...
Hi All, I've just had a new problem pop up in my 92 U band. I've just converted it from local to remote, and got all the bugs out of the way, and had a...
Hi Jesse, If it's a low tone (50-200Hz) then it could be the power supply oscillating thing or CTCSS. If it's higher then I'd suspect the SELCALL. Are all...
Hi Mark, Its not a low tone, which rules out ctcss, and the ctcss module seems to be working fine. Its about a 1kHz tone, but sounds much more like a sine wave...
Hi Greg, Yes, thats how it was originally. I've ruled out the mic as the source of the problem, or possibly the mic pre-amp, by shorting the PTT line with no ...
Jesse, Could it be RF feedback? "after a couple of days......." Has the voltage risen over this time? How are the earths? Antenna lead at both ends, cradle...
Marcus, Thanks for your input. The earths are fine, and there's no fuse on the negative lead. It was mounted in my car when the problem happened, but its ...
Jesse, This could be a tricky one! Are you into a dummy load on the bench? Try disabling the PA and see if it is still there without any appreciable output...
Hi All, Problem solved!! Turns out my suspicions were correct, the problem was related to the SELCALL module. However, not without fault on my behalf. Turns...
Hi, My name is craig, and I've just joined the group as well as purchasing a Phillips FM92. I think it is an 'A Band' model, this is because on a plate on the...
hi graig the radio might have community channel programed as channel 1 and you need to receive a ctcss tone to hear anything so the eprom will have to be...
Hi Daniel, Thanks for the response. I guess I'm not that concerned about what is currently programmed in the radio, but if I am going to spend $25 odd dollars...
Craig, U405 is the ctcss board. If it has one IC it is a encoder only. If it has 2 IC's it will be a Encoder/ decoder. With encoder only receiver
should...
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