Quantro with two RX'S

[FMROB]

Hello all,

Is it possible to use a quantro with two rx modules and a SAM module at the same time.

Also, Is there an option to bring the rx audio and COR to the pins in the rear for the second receiver.

Thansk, Rob

[FMROB]

Any takers on this one, BUMP

[Dan562]

Okay, I'll bite. Is your Quantro only a Base Station or is it a Repeater? This question is related to the Tx Mute function.

[FMROB]

Dan,
I love when you bite (in a question answering sorta way only).

This is a quantro set up to operate as a mixed mode repeater.

I know what the next question is, Why a second RX unit. The answer is long and a little strange, but we have a need.

I wonder how it will it will interact with the SAM module working on the current RX module. We do not need the second rx module to interface with SAM module.

Thanks, Rob

[Dan562]

Ok, you have a need for the second receiver module which could be a filibuster of a written response ... very long. I hope you realize that the basic second receiver option enables the standard receive function to expand the bandwidth out an additional 4~5 MHz. This receiver utilyzes the primary RF Band Pass Filter assembly. This option generally allows wideband frequency coverage on a standard non-repeating Base Station but not always.

I did a Infrastructure "SP" years ago that provided this option and it non-priority scanned between two frequencies for a wide area repeat function. If your filibuster was long, mine would be longer to explain what the end-user did with these Quantars! Oh Yeah, they were also CAI Mixed Mode repeaters and had a Astro-Tac CAI receiver mounted under and interfaced to the Quantars providing an "In Area Priority Repeat Function!" The third receiver frequency which was the true primary VHF repeater pair.

The SAM and the Wildcard would need to be scripted so the second or wide bandwidth receiver is able to provide the decoding function. You may ask how far this second receiver option can work in the Quantar. Well to your surprise, you can take a standard VHF receiver and install it into the second receiver card cage slot with it's own separate RF Input cable and this will function too! In on VHF and Out on UHF or vice versa, Cool!

Perhaps this will give you a warm fuzzy feeling.

Dan

[Dan562]

Hey Rob,

It justed dawned on me that I forgot to comment about the second receiver's recovered audio and COR function. You'll have to script the Enhanced Wildcard to route the second receiver's recovered audio and COR out to the system's connector.

You should understand there's an Enhanced Wildcard built into the Quantro / Quantar but it provides only a four (4) I / O Wire Lines to program, opposed to the optional eight (8) I / O Wire Line Board. To change the status on the Ehanced Wildcard, you must go into the F2 Hardware programming Field to perform this feature.

Dan

[xmo]

"Is it possible to use a quantro with two rx modules and a SAM module at the same time.

Also, Is there an option to bring the rx audio and COR to the pins in the rear for the second receiver."

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I think you will find that your answers are NO and NO.

The Quantar / Quantro backplane has one option slot connector, J4. That slot supports a second receiver - OR - a UHSO - or a SAM. The SAM uses the SPI bus from the RX#2 slot to communicate with the station control module.

Also, the Quantar planner calls the second receiver options "wide space" options. You should think of them in exactly that way. The station really acts like there is just one receiver that covers more than one frequency range. Only one receiver can be active at a time. Which one is active is established in the channel information screen by setting the frequency of one or the other receiver to "0". If both receivers have frequencies programmed for a given channel, only receiver number one is active.

[Dan562]

But if you program a Priority Scan on the second channel, I believe the second channel will detect and take over. I will state not to use the Priority Scan in a Public Safety application because if there's a scenario where Public Safety personnel are dealing with a hostage situation you wouldn't want to be held responsible for the Scanning feature if the words "Don't Shoot!" are stated and scanner Mutes the first word "Don't" and all the other officers only heard the word "Shoot!"