Good Enough?

Volfirefighter

Member
Feed Provider
Joined
Jul 26, 2003
Messages
880
Location
Canton, OH
I have at my disposal a Dell Optiplex 3040 Micro PC. It has a 6th Generation Intel Core I3, 8 GB RAM, and Windows 11 running on a 250 GB SSD. I am looking to set up two Broadcastify feeds using SDRTrunk and SDRs. Will this handle it? What are the benefits and/or drawbacks versus a Raspberry Pi and OP25? Consider the fact that I have zero Linux knowledge.
 

Kingscup

Member
Feed Provider
Joined
Jun 1, 2006
Messages
620
Since it sounds like you have everything, it is not going to cost you anything to at least try it. This will depend on how many talkgroups/analog frequencies/dongles and other factors on if an older PC can handle it. An older will likely work but it may not be able to handle as many talkgroups/frequencies etc as you want.

If you want/need to use a Raspberry Pi, you can use the Broadcastify image which has the operating system and the various programs to run the standard and Calls feeds. You just need to download it on a PC and then flash it to an SD card.

 

mtindor

OH/WV DB Admin
Database Admin
Joined
Dec 5, 2006
Messages
11,110
Location
Carroll Co OH / EN90LN
I have at my disposal a Dell Optiplex 3040 Micro PC. It has a 6th Generation Intel Core I3, 8 GB RAM, and Windows 11 running on a 250 GB SSD. I am looking to set up two Broadcastify feeds using SDRTrunk and SDRs. Will this handle it? What are the benefits and/or drawbacks versus a Raspberry Pi and OP25? Consider the fact that I have zero Linux knowledge.

DSDPlus and OP25 behave like scanners. One conversation at a time. So you miss traffic. But, many or most broadcastify standard feeds are set up like that, using scanners or OP25 or SDRTrunk. You'll handle standard feeds just fine.

Where you may run into trouble is if you want to run a Broadcastify "Calls" feed. That is a different beast. You need enough dongles connected to cover the full bandwidth from the lowest to highest frequencies in each band, so that you can pick up ALL calls on the site you are monitoring (which I'm guessing is Stark or Summit Simulcast). And if that is the case, it'll eat up CPU/memory pretty quick. In addition, with a "Calls" feed, you have to plan on it not just listening to one talkgroup at a time and sending its audio, but actually listening to potentially a dozen or more active talkgroups on the given simulcast all at the same time and sending that audio up to Broadcastify.

So I'd say you are good to go if you want to use OP25 or scanner to do a scanner feed. If you want to use SDRTrunk, you really need to plan for enough SDRs to cover all of the spectrum in use on the site as well as the highest number of simultaneous conversations that might be occurring on that site.

People who are running Stark / Summit Simulcast "Calls" feeds require a lot more resources than people who are running "standard" feeds in those counties.
 

rjdj2000

Gone Cuckoo
Feed Provider
Joined
Jan 24, 2011
Messages
358
Location
Central NY
DSDPlus and OP25 behave like scanners. One conversation at a time. So you miss traffic. But, many or most broadcastify standard feeds are set up like that, using scanners or OP25 or SDRTrunk. You'll handle standard feeds just fine.

Where you may run into trouble is if you want to run a Broadcastify "Calls" feed. That is a different beast. You need enough dongles connected to cover the full bandwidth from the lowest to highest frequencies in each band, so that you can pick up ALL calls on the site you are monitoring (which I'm guessing is Stark or Summit Simulcast). And if that is the case, it'll eat up CPU/memory pretty quick. I
Just like to comment that on the system I feed and do a calls feed as well, I only have 1 dongle doing both. Yes my system is totally within the bandwith of the dongle, his may not and require another dongel or two. SDRTrunk basically saves all the calls as a MP3 and streams them out as they came in over a regular feed. The calls portion does exactly the same thing. My stsem has been busy due to storms going through and I've had almost 500 calls to be sent through to the server. There is a setting to increase so you can keep how ever many seconds of audio to send out. I have mine set for like 5 minutes. That way if there is a busy time, it saves the calls and will catch back up on it's own. On my system, I've seen 4 channels active at one time and still have seen everything come through on the calls side.

Jeff
 
Top