oaa
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Hi! Anyone who knows if you could swap Saber and Systems Saber parts? I have a Syssaber that will not transmit. Maybee there are some broken parts in it? Is there anything in CPS that could block a Systems Saber from transmitting?
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System Saber parts.
- Thread starter oaa
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If a channel is programmed as RX only with a System Saber it will give you a low bonk tone and say “No TX” ( or something similar ) on the display.
You can swap cases out with a standard Saber case ( although the button layouts are completely different so the keypad markings will not match the button presses ) and see if that makes a difference. But if it’s programmed as an RX only frequency - it will behave the same.
You can swap cases out with a standard Saber case ( although the button layouts are completely different so the keypad markings will not match the button presses ) and see if that makes a difference. But if it’s programmed as an RX only frequency - it will behave the same.
If I recall many modules are the same. I still have service manuals and can look.
System sabers are RSS and they are close to if not 40 years old now. There possibly many reasons why it wont Transmit. Bad PA, Bad oscillator bad ptt switch...
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The RF modules that plug into the motherboard are all interchangeable between the various SABER, SYSTEM SABER radios (Except ASTRO SABER, Different animal). You can also change band splits. Reading the manual and paying attention to part numbers is important. The RSS is different for SYSTEMS SABER..
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Noting that you are in NORWAY, there could be a different RSS for your flavor radio.
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Might as well ask....I never got into Systems Sabers but I learned a lot about Sabers. Are the main chassis the same, are all the differences in the controller in the front shield assembly, or are there other differences on the main board as well? I'm guessing so, but not sure.
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The main board and controller in front shield are very specific to the SYSTEMS SABER. I have stopped supporting the original SABERs and simply gut the RF modules from them (440-470MHZ), to up band SYSTEMS SABERs that are ex federal (Range 1 403-420 MHz). The SYSTEMS SABER was part 95 certified, despite the encryption capability.
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Thanks, that's what I figured. Not that I will likely have much use for the info at this point.
oaa
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I have the RSS 4.0. It reads and write codeplug. Radio receive but will not transmit.
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This webpage (below) is for the standard, non systems Saber, however the RF module part numbers are generally the same. You should identify the RF modules in your radio and crosscheck the modules against the ones on this page with respect to the RF frequency that you have programmed into your radio. It is possible the VCO is unlocked due to failure or simply being out of range for your frequency. A caveat is that Motorola made these radios fr international markets so there could be modules specific to your country that are not on this list. As always having the correct service manual will help. There is a FDS module, Filter Detector Switch, that is the TX harmonic filter, RF power detector and T/R switch. If this fails, due to a bad PIN diode, the radio may sense that fault. I am assuming that by "not transmitting", the red TX LED is either not illuminating or is blinking once. Also if the radio has an encryption module and the radio has encryption strapped, to a channel not switched by the clear/coded toggle on the left side, the radio will not transmit without an encryption key. It will also not transmit with the clear/coded set to coded (An O with a / inside). You will get a rude low frequency tone.
Also in the RSS is a table for mapping the buttons on the radio to various functions. I don't recall if the PTT paddle is mappable, but if it is set to other than TX function it may not TX.
oaa
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Thanks for information. There is no led nor any sound. But there was a long jumper at the back of the main board leading from "pin # 4" at the top of the board (there is a row of 11 pins), down to pin from the encryption module. This wire had a different "start", but same end as the bypass wire for Saber pictured at Batlabs.
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Not sure what jumper you are talking about.
If the radio once had an encryption module and it was removed, then it probably will not transmit modulation without that one single bypass wire which begins and terminates on two pins (1 and 17) of the encryption module socket. Otherwise there would be a plastic bypass module with a wire molded in. Also the radio should not be programmed with encryption on any channel/mode or rocker switch.
Also the rear sheild on the mother board has an insulator in it. If any pins from the MB are shorting through you might have a fault. I trust you have first verified you have the correct RF modules for the frequency being programmed per my message #11 above.
If the radio once had an encryption module and it was removed, then it probably will not transmit modulation without that one single bypass wire which begins and terminates on two pins (1 and 17) of the encryption module socket. Otherwise there would be a plastic bypass module with a wire molded in. Also the radio should not be programmed with encryption on any channel/mode or rocker switch.
Also the rear sheild on the mother board has an insulator in it. If any pins from the MB are shorting through you might have a fault. I trust you have first verified you have the correct RF modules for the frequency being programmed per my message #11 above.
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