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 21 
 on: August 29, 2018, 03:38:12 PM 
Started by ELT - Last post by ELT
Thanks for the info, we have a couple of CAP plus systems on prime sites and also an analogue next trunking system with our own design base logic and mobile control cards which is getting long-in the tooth now.

Our next trunking is the analogue version of Cap + i.e. no fixed control channel just a marker on the next available one.

 22 
 on: August 28, 2018, 11:10:38 PM 
Started by ELT - Last post by emsgeorge
yep it handshakes to check what the rest channel is, or should be, each time you change talkgroup. Unlike analogue trunking, that constantly uses one control channel, cap plus moves the control info around the slots.

Its entirely normal. How many repeaters have you got on it at the moment ?

we have just come back from an event with 2 cap plus repeaters, 75 handsets, and 9 talkgroups, and not a single channel bonk.

 23 
 on: August 28, 2018, 04:57:21 PM 
Started by ELT - Last post by ELT
Hi George

My DP3400ís although little used have very early firmware.
I am looking at the RX light on the DM4400 which does flash on initial handshake then I donít see it again.
However if I program a few channels into it with different talk groups (to monitor users) when you change channels it handshakes again.
I monitor the repeater with an analogue RX so know when it sends data as apposed to beacon.
Is this background activity a feature of Cap + or do you suspect a problem ?

Chris

 24 
 on: August 28, 2018, 03:55:49 PM 
Started by ELT - Last post by emsgeorge
Hi, we have a UHF CAP plus system, could I ask a few questions of those who understand how cap plus works ?
Monitoring the SLR5000 output with on analog RX (just to see if its in beacon mode or traffic mode) I notice that most times a mobile/portable is switched on it handshakes with the base, I assume this is normal.

The portable handshakes to ask the base 'what slot am I monitoring' for the rest channel. the radio sits on a rest channel until the repeater uses it for a conversation, then signals to all the other radios to shift rest channel.


Also a DP3400 apart from this initial handshake, at regular intervals (approx every 30 seconds) communicates with the SLR (witnessed by the green light on the portable and the SLR going from beacon to constant).
Whilst this is going on one slot is not available for traffic and gives the impression to users that the system is busy.
Is this normal, my DM4400eís donít seem to do this.

The repeater can be set to different intervals to send out a 'rest channel is this repeater / slot' signal rather than wait for a handheld to ask it. Are you looking at the rx light on the 4400, as I've noticed on our 4800e's that they blink a lot less than on the 3400/3600 radios, almost as if Motorola has implemented some sort of 'ignore maintenance / info message signals and don't light the LED' into the firmware.

 25 
 on: August 27, 2018, 01:50:42 PM 
Started by ELT - Last post by ELT
Hi, we have a UHF CAP plus system, could I ask a few questions of those who understand how cap plus works ?
Monitoring the SLR5000 output with on analog RX (just to see if its in beacon mode or traffic mode) I notice that most times a mobile/portable is switched on it handshakes with the base, I assume this is normal.
Also a DP3400 apart from this initial handshake, at regular intervals (approx every 30 seconds) communicates with the SLR (witnessed by the green light on the portable and the SLR going from beacon to constant).
Whilst this is going on one slot is not available for traffic and gives the impression to users that the system is busy.
Is this normal, my DM4400eís donít seem to do this

 26 
 on: August 21, 2018, 11:38:42 AM 
Started by Beefi - Last post by Beefi
Hi Guys
Can you confirm if the normal 2 pin headsets (Peltor) that work via the screw on adaptor on the DP4400 will also work on the XT420(?) PMR 446 radio's?
Why, I have a short hire in Europe and using PMR 446 seems to be a good way around the frequency/licence restrictions. Using specifically the Peltor noise defending headsets
Thanks in anticipation

 27 
 on: August 09, 2018, 09:00:38 PM 
Started by onmia - Last post by emsgeorge
that's basically whatsinside the dr3000 repeater, with a logic board in it.

No idea if you can read the codeplugs out of the radios on one and make your own with the logic board, but if you are near sussex, you are welcome to look inside our dr3000's and read off the radios to see if you can.


 28 
 on: August 05, 2018, 06:45:13 PM 
Started by onmia - Last post by onmia
Quick question for the experts out there ,
Is it possible to use two DM3400 radios as a repeater connected via the accessory connection at the rear ?

i have made repeaters in the past from GM340 radios, just wondering if this can be done ?

if so what equipment would be required ?

 29 
 on: July 08, 2018, 06:23:24 PM 
Started by redo109 - Last post by emsgeorge
You know this thread was posted in 2015 ?

The OP hasn't been back since August 2015 ÖÖ..

 30 
 on: July 07, 2018, 07:41:56 AM 
Started by redo109 - Last post by nenevall
the only thing i can see is the GP I/O lines aren't disabled and the radio could be trying to use rear connector channel steering, disable them and see how it goes.

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