[chirp_users] Dongles ?
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
Sounds like a Software Defined Radio (SDR). I’ve seen them in several places, but not for use in emergency comms. I’d be curious, too!
josef
From: chirp_users-bounces@intrepid.danplanet.com [mailto:chirp_users-bounces@intrepid.danplanet.com] On Behalf Of Sarge ex 7thAF Sent: Tuesday, February 07, 2017 8:24 AM To: Discussion of CHIRP Subject: [chirp_users] Dongles ?
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals.
If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you.
Thanks In Advance.
I have two that i have yet to make them work. and most are over priced .
Patrick Brown YCSRT 3213
N7FHB Wilhoit 145.350 Wildflower SYCSRT TEAM Manager http://ycsrt.org
T.E.A.M = Together Everyone Accomplishes More
On 2/7/2017 7:31 AM, Josef Zeevi wrote:
Sounds like a Software Defined Radio (SDR). I’ve seen them in several places, but not for use in emergency comms. I’d be curious, too!
josef
*From:*chirp_users-bounces@intrepid.danplanet.com [mailto:chirp_users-bounces@intrepid.danplanet.com] *On Behalf Of *Sarge ex 7thAF *Sent:* Tuesday, February 07, 2017 8:24 AM *To:* Discussion of CHIRP *Subject:* [chirp_users] Dongles ?
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals.
If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you.
Thanks In Advance.
--
Sarge KE5YPB, Lickskillet, Texas "All it takes for evil to triumph is for good men to do nothing."
" Lets Roll " ---- Todd Beemer--- 9/11/01 --- American Hero
Are you going to take a stand to help America in 2016 ?
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On 2017-02-07 07:24, Sarge ex 7thAF wrote:
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
You want to look for an SDR ( software defined radio ) device. There are many to choose from but the least expensive are usually and RTL-SDR and can be purchased from aliexpress, dx.com or amazon. For best results get an sdr with a temperature compensated crystal. There are more expensive and versatile SDRs out there like the lime-sdr.
To be able to cover all channels in a typical p25 setup you will need 2 ( if you are using RTL-SDR ) of them and at least a dual core i5 to keep up with the decoding load and a quad i7 is probably better.
You then need to setup trunk-recording software. For Linux the best I found is trunk-recorder, for widnows your on your own. You may find that once you've done all this setup the channels are encrypted and you can't listen anyway.
Mentioned last but probably one of the things you'll want to look into is whether this is all even legal in your area/country. In Canada for instance it's a grey area if you listen to p25 encoded transmissions. It's illegal to try and decrypt ( vs just decoding ) radio traffic. In Canada it is also likely illegal to record first responders.
Oh, and all of this has nothing to do with chirp.
Here are some links about SRD dongles and the software that can be used on them or that they require.
http://www.rtl-sdr.com http://www.radioforeveryone.com http://gnuradio.org http://gqrx.dk https://www.dsdplus.com http://www.unitrunker.com
Tom ND5Y On 02/07/2017 08:24 AM, Sarge ex 7thAF wrote:
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
-- Sarge KE5YPB, Lickskillet, Texas "All it takes for evil to triumph is for good men to do nothing." " Lets Roll " ---- Todd Beemer--- 9/11/01 --- American Hero Are you going to take a stand to help America in 2016 ?
I think what you are referring to is a PV4 mini which turns your laptop into a wifi hot spot. This is used with DMR (digital mobile radio). This is fairly new and there isn't a lot of info around telling how to make it work. This allows transmitting over the internet. It probably should be directed to a dmr group.
On Tue, Feb 7, 2017 at 1:09 PM, Bill KA8VIT ka8vit@ka8vit.com wrote:
RTL_SDR.
73 - Bill KA8VIT
On February 7, 2017 at 9:24 AM Sarge ex 7thAF 0101.smd@gmail.com wrote:
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
-- Sarge KE5YPB, Lickskillet, Texas "All it takes for evil to triumph is for good men to do nothing." " Lets Roll " ---- Todd Beemer--- 9/11/01 --- American Hero Are you going to take a stand to help America in 2016 ?
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==================================== Bill Chaikin, KA8VIT USS COD Amateur Radio Club - W8COD WW2 Submarine USS COD SS-224 (NECO)
ka8vit@ka8vit.com http://ka8vit.com http://www.usscod.org ====================================
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He probably is referring to RTL-SDR, which uses a dongle which was designed for DVB-T (European digital TV). There are several versions available and you can find information at http://www.rtl-sdr.com.
On 2/7/17 6:24 AM, Sarge ex 7thAF wrote:
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
-- Sarge KE5YPB, Lickskillet, Texas "All it takes for evil to triumph is for good men to do nothing." " Lets Roll " ---- Todd Beemer--- 9/11/01 --- American Hero Are you going to take a stand to help America in 2016 ?
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http://www.g0hwc.com/downloads/Manual-DV4mini_english-V1_6.pdf
This is the device I was referring to. I think with the link Bob provided and this link, Sarge has a pretty good idea what the dongle is all about. KD8UXW Ken
On Tue, Feb 7, 2017 at 5:55 PM, Bob Nielsen n7xy@n7xy.net wrote:
He probably is referring to RTL-SDR, which uses a dongle which was designed for DVB-T (European digital TV). There are several versions available and you can find information at http://www.rtl-sdr.com.
On 2/7/17 6:24 AM, Sarge ex 7thAF wrote:
I hope this is an acceptable question for this list. I don't know any other place to ask for this help. A local county emergency manager has told me about an inexpensive magic ( to me ) dongle type rf reciever that plugs into a usb port. It has a jack for an external antenna. Supposedly this device can recieve a huge amount of frequency spectrum AND trunked systems that also uses p25 digital signals. If anyone has links to this device that would give me the complete info on this thing, I would greatly appreciate you. Thanks In Advance.
-- Sarge KE5YPB, Lickskillet, Texas "All it takes for evil to triumph is for good men to do nothing." " Lets Roll " ---- Todd Beemer--- 9/11/01 --- American Hero Are you going to take a stand to help America in 2016 ?
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I hope this is an acceptable question for this list.
It is not. Please, everyone, take this conversation to an appropriate list elsewhere.
Whenever we go off on tangents like this I get a lot of unsubscribes and complaints from people that are (rightfully) only interested in CHIRP discussion.
Thanks for your understanding.
--Dan
participants (9)
-
Angus Ainslie -
Bill KA8VIT -
Bob Nielsen -
Dan Smith -
Josef Zeevi -
Ken Sundquist -
Patrick Brown -
Sarge ex 7thAF -
Tom Consodine