Good Day All,
Here's a little background I have a C24CLB7106AT that I converted to a CXB command tray, all went well. (I think) The time has come for me to pull it out of moth balls and start using it as a temporary backup. I pulled it out and hooked up the test set and all looked good. I keyed the station from my portable and now it shows me rx1 unsquelched and the repeater as being unsquelched I plugged the test set into the reciever and its showing me over 50 microamperes at the injection filters. Anybody up to helping me do some trouble shooting?
Doug
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MSF5000 squelch
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MSF5000 squelch
May the Schwarz be with you.
My two bits worth:
Exactly what problem are you having?
Since the title implies a "problem" with the squelch.
The MSF has several squelch controls, front panel, receiver, and repeater.
The front panel squelch control is only enabled with the "ACC DIS" switch on the front panel in the UP position. The "PL" disable switch would also have to be in disable, providing that PL is enabled.
The internal squelch control, an EEPOT which is adjusted via RSS or with the front panel switches. Trickey see manual!
The internal receiver squelch is in effect only comes into play with the PL disabled, providing the receiver qualifiers are set for "C".(Code) If the qualifiers are set for CS. (Code, Squelch) Also known as "And Squelch" the setting of the internal squelch becomes extremely critical.
Note default is "C" PL control of the receiver squelch.
To set this control disable PL, ACC DIS in normal, set eepot for about 5 clicks beyond critical. The antenna must be connected for this adjustment.
If the internal squelch is set "open" the station will never send its call sign.
In the 6809 trunking system this will cause a RIB fail.
This condidion may not be noticed in operation, as the receiver is controlled by the PL decoder. Stations with "and squelch" will have long squelch tails from subscriber units with out "Reverse burst"
The repeater is by default set for Code & Squelch for keying, C, or PL for hold in.
Exactly what problem are you having?
Since the title implies a "problem" with the squelch.
The MSF has several squelch controls, front panel, receiver, and repeater.
The front panel squelch control is only enabled with the "ACC DIS" switch on the front panel in the UP position. The "PL" disable switch would also have to be in disable, providing that PL is enabled.
The internal squelch control, an EEPOT which is adjusted via RSS or with the front panel switches. Trickey see manual!
The internal receiver squelch is in effect only comes into play with the PL disabled, providing the receiver qualifiers are set for "C".(Code) If the qualifiers are set for CS. (Code, Squelch) Also known as "And Squelch" the setting of the internal squelch becomes extremely critical.
Note default is "C" PL control of the receiver squelch.
To set this control disable PL, ACC DIS in normal, set eepot for about 5 clicks beyond critical. The antenna must be connected for this adjustment.
If the internal squelch is set "open" the station will never send its call sign.
In the 6809 trunking system this will cause a RIB fail.
This condidion may not be noticed in operation, as the receiver is controlled by the PL decoder. Stations with "and squelch" will have long squelch tails from subscriber units with out "Reverse burst"
The repeater is by default set for Code & Squelch for keying, C, or PL for hold in.
Aloha, Bernie
"over 50 microamperes at the injection filters. ", This may be a problem with the injection filters growing 'wiskers'.
With 50+ ua at the injection filters would not byitself unsquelch the receiver. But I have seen some bug in the F/W that has the PL/DPL decoder holding forcing the receiver unsquelched.
With 50+ ua at the injection filters would not byitself unsquelch the receiver. But I have seen some bug in the F/W that has the PL/DPL decoder holding forcing the receiver unsquelched.
Good Day Bernie and Will,
I have played with and adjusted all the squelch settings available with no happy conclusion. I happened to hook up the test set and thinking that maybe it was something to do with the injection filters not knowing that it wasn't capable of holding the squelch open. It struck me as being very odd that I would have a measurement of over 50.ua. Sounds like its time for a firmware up grade and a good cleaning.
Doug
I have played with and adjusted all the squelch settings available with no happy conclusion. I happened to hook up the test set and thinking that maybe it was something to do with the injection filters not knowing that it wasn't capable of holding the squelch open. It struck me as being very odd that I would have a measurement of over 50.ua. Sounds like its time for a firmware up grade and a good cleaning.
Doug
May the Schwarz be with you.