Hi there does anyone have a copy of the user manual for the collins prc-515 or ru-20 in English that they could email me. Thanks Martin G7JWR g7jwr@... ...
Hi All, I picked up a couple of B Band 92's today at a rally (Hamfest) for next to b*gger all. Both had faults listed, and one I have got EPROMmed up, and it...
... Right, ok, further: One is missing the VCO, so that is a spares unit. One was marked: "No RX Audio" and the other was marked "EPROM Fit, No Lockup", so I'm...
Hi James, Hopefully the dymo tape label is just a reference to the repeater/s it's talking too. It could complicate matters somewhat if it's been hacked to...
hi people, i picked up a FM900R and MSR901 these can be set up for 2 meter only, can any one tell me if there is any hardware changes [ie] cableing or changes...
Hi Peter, Its all in the programing. I have one also but I have ended up ditching the
msr901, changing the head to a standard and just programming it with FPP...
hi Andre, yes i thought it would be in the programing, i have been told about the special ... to get them going with the original head, and the head working as...
hi people, i picked up a FM900R and MSR901 these can be set up for 2 meter only, can any one tell me if there is any hardware changes [ie] cableing or changes...
... Looks like it has been hacked.... the extra wires are at +13.8v and +5v respectively. I'm just wondering if the audio has been tinkered with, to keep it at...
Hi Peter, I cheated. I have a pile of 900's that have been ratted for various boards
and I simply swapped the front plate/plug. You will find the 25 pin socket...
Right, here goes! Some further prodding reveals the following: The front panel has been changed, in case of a dodgy volume pot, and no difference. I've swapped...
Well, I've fixed it!! If I hadnt been such a drongo, then i'd have nailed it a couple of days ago! Basically, the problem was down to the TDA1010A..... I...
Hi James, If IC405 is high and muting the audio then it's most likely that the radio has been programmed for CTCSS and/or Selcall and is intentionally muting...
... This one has been programmed for CTCSS encode only (did it myself!).... it has only the encode board, and the hardware/software code reflects that too.... ...
Hi All, Does anyone know if the 8 Pin DIN mic socket on the 92 follows the same pinouts as the Philips M/MX290 series? I havent got a mic wired for a 92, but I...
Try this web site for FM92 schematics: http://vk2afy.dyndns.org/6mconv/6mfiles.htm Look for the Zipped circuits. The JPEG compression is a bit severe on some...
Hi All, When installing either and enc/dec or enc only CTCSS board in an FM92, is there anything required additional other than:- Installation of the I/O chip ...
Graeme Lewis wrote: periencing a set tone of 250hz on TX irrespective of channel and ... Hi Graeme. From memory there are also some minor component changes,...
Isn't there also a link that needs cutting/soldering/changing? Instruction in the FM91 manual should also apply to the 92. Mark ... From: FM900@yahoogroups.com...
Link 9 near the back of the radio from Memory.... ... From: Mark HARRISON Date: 7/08/2009 6:24:32 PM To: FM900@yahoogroups.com Subject: RE: [Fm 900] CTCSS...
... Thanks for that Mark! As a bonus, the mic circuits are even in there, allowing me to successfully graft a 6 pin moulded plug mic from a remote mount unit...
Now has no CTCSS!! It worked when I first dropped the EPROM in, on the day I bought it. Now, after grafting on a mic etc, it doesnt! Any ideas? was it due to...
... I think I have this now figured.... Reading the manual, it would appear that the "cradle switch" will only enable CTCSS encode when open. I'm assuming that...
... You got it :) CTCSS encode will only work with the mic off-hook (no magnet on the reed switch). Decode only works while the mic on-hook. Fortunately,...
From: James Hill Sent: Saturday, August 08, 2009 7:21 AM To: FM900@yahoogroups.com Subject: Re: [Fm 900] The FM92 From Hell...... yep put a switch on the mic...
... Hi Gavin & Dan, You've confirmed my findings! I did have the idea of possibly doing something with pin 15 (gate) of the CTCSS module, to enable it...
Thanks fellas for the info on setting up the CTCSS board. I actually found I needed to change link 404 as standard to link 405. As soon as I did that, the...
Hi Folks, I have just tried to tune up the VCO of an A Band FM92 to convert it to 2M. I have done many before with no problems. But no matter what I do,this...
