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I recently bought a used Radius R100 repeater (UHF) and was told that it worked. I don't know a whole lot about these radios (Literally). I jotted down the frequency and PL, tried to key it, no joy! The 'J aux' is not plugged into anything it's a basic system.
(Q1) Does J-aux need to be plugged into anything in order for it to work?
(Q2) Is there a way that I can manually key it to test TX?
(Q3) Any PDF files or files in general that will allow me to read up on this repeater?
The J AUX is for external accessories and would not affect basic opperation.
There is a TEST PTT switch on the large board inside the door.
" (Q3) Any PDF files or files in general that will allow me to read up on this repeater?
"
NO, not at this time. I am working with two others to put all the R100 information in one place. We need an R100 ( that has not been brought up to date/moded) to do a complete photo writeup.
There is a lot of info here, just use the Search button......
Hello Will,
YOU ARE THE MAN! Thanks, I tested it and was able to get the thing to work... Could not have done it without your expeditious reply! Thank you, Thank you, Thank you! Seems it's working to this point. I need to build a DB25 interface cable <EDIT, JAYMZ>
Would you be able to point me in a direction of manuals. I was thinking of interfacing a RC-96 controller with this unit...
Well, thanks again!
Regards,
D
PS: If you have other information on the R100, let me know please.
Hi Guys,
Thanks for all this great information. I think I have some spare components laying around. Please confirm if DB9 is a FEMALE plug and not a MALE. If time permits, I build one tomorrow. You guys are a wealth of information.
Hi folks,
Well another dilema, I went to batlabs and looked at the program HEX EDITOR and the necessary changes that need to be made in order to program out of band.
By the way, I finished building my cable and am running the software with cable and they seem to work fine.. I was able to manipulate the frequencies @ 450Mhz and Above. Here are my problems:
1) I don't know how to use the HEX EDITOR and, YES I do have a TEXT EDITOR Program.
2) I don't understand what exactly needs to be changed within the R100.COM program.
Bottom line, I don't understand how and what to change in the program. Any help would be appreciated!
Okay gang,
I finally figured out how to run the HEX editor. It was relatively easy once I figured out how to edit the thing.
Now it looks like I can program into the HAM BANDS. Problem is I'm not able to transmit of receive... I'm guessing because it's so far out of band that the repeater needs to be retuned...
The R100 is not a broadband product - so - unless yours was already being used close to the frequency you are going to put in it - you will need to align the unit after you program it.
Your best bet is to have a manual, but while you are waiting for one to show up on ebay or at a hamfest - this will get you started:
MCR100 ALIGNMENT
Transmitter:
VCO Adjustment.
1. Connect a DC voltmeter [input impedance 11 megohms or greater] from the steering line test point [SL] to ground.
2. Key the station. Adjust TX VCO control C221 for a reading of 6 VDC.
Output Power Adjustment.
1. Adjust Output Voltage Set control R8 on the power supply regulator board for an A+ equal to 13.2 VDC +/-0.1 VDC.
2. Key the station and adjust High Power Set control R453 for 25 Watts [25 Watt stations]
[there are several more steps in the book that can be followed for a complete alignment]
Reference Oscillator Adjustment
Key the station and adjust 2 PPM Frequency Control R163 [on the transmit RF board] for the exact transmit frequency +/-100 Hz.
Receiver Adjustments:
VCO adjustment.
1. Connect a DC voltmeter from the steering line test point [SL] and ground.
2. Adjust RX VCO control C201 for a reading of 6.0 VDC.
After you set your RX steering line, put your voltmeter on the local oscillator test point [LO - near FL3]. Tune FL3 for maximum [2.5 to 3.5 VDC typical]
Then you can tune the front end filters FL1 and FL2 for best SINAD. Finish up by fine tuning FL3 for best SINAD.
LOCATIONS:
With the RF board positioned so that the legends are readable, the receiver coax enters at the top left [J1 labeled RX]. You will see three groups of cans with screw adjustments. Left to right these are FL1, FL2, and FL3. FL1 and FL2 are the RX RF filters. FL3 is the injection filter.
With the cover off the shielded compartment, C201 is at the top right of the upper half of the compartment and C221 is at the lower right of the upper half of the compartment. R163 is to the right of the SL legend in the top part of the lower half of the shielded compartment. [TX rf only]
XMO,
Thanks for your help. I will try this alignment process sometime this week. Thank you for sharing your knowledge, it says a lot about you.
Thank again!
Xmo said it very well, the VCO's are the first step, then the rest.
"Adjust TX VCO control C221 for a reading of 6 VDC. "
"Adjust RX VCO control C201 for a reading of 6.0 VDC. "
These are sometimes diffacult due to the poor quality/ old trimmer caps, so tune slowly..... 4 to 6 volts on the steering line is good.
"FL1, FL2, and FL3. FL1 and FL2 are the RX RF filters. FL3 is the injection filter. "
These are going lower in frequency so they want to go clockwise a few turns.
If you are not able to get the alignment done, I can do them here. I only need the two modules, the RX and the Exciter. So that saves on shipping.
