Saber MDC After PTT release / Call ?

loki71 · Post by **loki71** » Wed Aug 04, 2004 3:28 pm

I've been able to set my Saber III and Saber II radios to issue an MDC squawk before the mic goes active, but as I understand it the Saber can be setup to generate the MDC tone after I release the PTT - and have even seen talk here of guys who have it both before and after they speak into the radio.

When I go into RSS and activate MDC, it states 'Before Call', but I see no where to change that. Does anyone know where that can be changed so it issues the MDC tone after I'm finished transmitting?

thanks,

Richard

jedi_saber · Post by **jedi_saber** » Wed Aug 04, 2004 4:49 pm

It should allow for these options that include PRE, POST, PRE&POST ID.

loki71 · Post by **loki71** » Thu Aug 05, 2004 7:21 am

jedi_saber wrote:It should allow for these options that include PRE, POST, PRE&POST ID.

I know RSS is difficult to navigate at times, and just as difficult to describe, but can you tell me where I can find this? I'm using Ver. R06.01.00 and I don't see anything about PRE, POST, or PRE&POST in the features or channel setup for my Saber or even some of the RPF's I've created from scratch.

Thanks for the help.

kc2dla · Post by **kc2dla** » Thu Aug 05, 2004 8:20 am

I have experienced the same limitation you describe. I recently got a Systems Saber III and it can be programmed for pre or post, but NOT both. Anyone have a saber software manual to refer to about this?

Paul

PropellorHead · Post by **PropellorHead** » Thu Aug 05, 2004 10:06 am

In the RSS, if you select any of the following options:

H958 - Unit ID - MDC600
H961 - Unit ID & Emergency - MDC600
H963 - Unit ID w/ Audible Emergency - MDC600
H923 - Unit ID w/ Emergency Revert - MDC600
H959 - Unit ID - MDC1200
H962 - Unit ID & Emergency - MDC1200
H967 - Unit ID w/ Audible Emergency - MDC1200
H946 - Unit ID w/ Emergency Revert - MDC1200

You get two dialog boxes. The first asks you to input an ID for the radio. After you input that and hit enter, you are prompted by the second box. This one asks you to select whether you want the ID TX "before" or "after" the key. You can also select "both."

Hope this helps. It isn't an "H" option so to speak, just a dialog box you get when you enable any form of MDC signalling, whether it is 600 or 1200.

Louie

a.steggall · Post by **a.steggall** » Thu Aug 05, 2004 2:44 pm

I have done some playing around with the saber RSS because of this same problem. And what I found is if you have a Secure saber it will not give you the option of before, after, or both it just sets it to before. If you program it as a clear saber it will give you the option of before, after, or both.

Andy

loki71 · Post by **loki71** » Fri Aug 06, 2004 8:19 am

a.steggall wrote:I have done some playing around with the saber RSS because of this same problem. And what I found is if you have a Secure saber it will not give you the option of before, after, or both it just sets it to before. If you program it as a clear saber it will give you the option of before, after, or both.

Andy

I've just found the same results - whats up with that? Maybe being secure takes too much space in the core & to make up for it they limit other options? Hmm - - Anyone know a way around this?

Richard

PropellorHead · Post by **PropellorHead** » Fri Aug 06, 2004 9:39 am

The only thing I can think of would be to Hex the codeplug. You would need to find what hex value controls the MDC TXing options and change that value to whatever it needs to be. Then you would have to make sure the checksum still comes out right.

Louie

Post by **HumHead** » Fri Aug 06, 2004 8:44 pm

I also vaguely remembering the same reduction of options with MPL. I would suspect that it is a memory issue (or just buggy coding...).

kc2dla · Post by **kc2dla** » Sat Aug 07, 2004 11:24 am

Hmmm.. interesting. The systems saber is the same way; no post-MDC when the channel is not slaved to clear. To state in another way, if a mode is secure-slaved or user selectable between clear and secure, the RSS will not allow a post-MDC. This may have to do with the routine that the transmitter performs as it switches between clear and secure.

The RSS will not allow the MDC programming let the transmitter switch from coded mode to clear mode, but not vice-versa. This may also be a limitation of the receiving radio somehow. The RSS just doesn't allow the transmitter to go from coded to clear because it wouldn't be discriminated properly by other receivers.

loki71 · Post by **loki71** » Sat Aug 07, 2004 7:44 pm

kc2dla wrote:Hmmm.. interesting. The systems saber is the same way; no post-MDC when the channel is not slaved to clear. To state in another way, if a mode is secure-slaved or user selectable between clear and secure, the RSS will not allow a post-MDC. This may have to do with the routine that the transmitter performs as it switches between clear and secure.

The RSS will not allow the MDC programming let the transmitter switch from coded mode to clear mode, but not vice-versa. This may also be a limitation of the receiving radio somehow. The RSS just doesn't allow the transmitter to go from coded to clear because it wouldn't be discriminated properly by other receivers.

I was able to get the MDC Before/After options once I set the RPF to use a non-secure personality. I'm going to try more ideas like slaving clear to channels and see what happens. Any other input is appreciated, I'm having some odd scanning issues which I just resolved and I'm wondering if those are RSS related as well (at least programming related).

PropellorHead · Post by **PropellorHead** » Mon Aug 09, 2004 11:43 pm

Upon programming a Saber III for a friend I also found that if you have any scan enabled you cannot set an MDC ID to TX after PTT. Wierd.

Louie

loki71 · Post by **loki71** » Tue Aug 10, 2004 7:10 am

LACityFD wrote:Upon programming a Saber III for a friend I also found that if you have any scan enabled you cannot set an MDC ID to TX after PTT. Wierd.

Louie

Louie -

I'm not sure if its the scanning selection - below you will see what I've currently got running on my clear Saber III - which left me the option of MDC1200 before or after (of course, I did both). I tried to setup a new Secure RPF with no scanning, and I still couldnt do anything besides before.

The options selected are:

H371 - Zone & Channel Operation
H346 - Zone Display Name
H380 - Channel Display Name
H384 - Muting via Keypad
H359 - Selectable PL (Encode/Decode)
H959 - Unit ID - MDC1200 Before & After
H619 - Omit MDC Side Tones
H779 - MDC Non-Standard Pretime Delay (100 ms)
H297 - Manual Telephone Interconnect (Manual Length)
H273 - Operator Selectable Scan
H344 - Mode Slaved Scan
- 2nd Fixed Priority
- Nuissance Mode Delete
- Scroll Scan List
- Designated Transmit Mode
- Priority to follow channel selector switch

This configuartion by the way also solves the CSQ scanning issue - with this CSQ channels will open during scan. (see my other post).

Richard

Karl NVW · Post by **Karl NVW** » Fri Aug 13, 2004 9:16 am

KC2DLA
Hmmm.. interesting. The systems saber is the same way; no post-MDC when the channel is not slaved to clear. To state in another way, if a mode is secure-slaved or user selectable between clear and secure, the RSS will not allow a post-MDC. This may have to do with the routine that the transmitter performs as it switches between clear and secure.

If you stop and think about it, the reason for NOT allowing post-ID except when in clear analog is simple. The ID tones won't pass through the SecureNet modules without severe distortion, therefore nothing gets decoded at the other end. It also interferes with the secure turn-off code sequence.

If you want post-ID on some modes in a secure-equipped radio, then that mode MUST be programmed as clear-only (applies to mobiles also).