[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] USRP HF setup
From: |
Davek |
Subject: |
Re: [Discuss-gnuradio] USRP HF setup |
Date: |
Sat, 25 Sep 2010 06:37:08 -0400 |
Alex, thanks for the reply. I have seen most of your vids, they are excellent.
Your site is full of great information. If i didnt get any replies, i was
actually gonna mail u off list ... Anyway, i will consider this antenna, it
looks to be relatively simple, which i like :)
dave
Sent from my iPad
On Sep 25, 2010, at 6:14 AM, Alexandru Csete <address@hidden> wrote:
> On Sat, Sep 25, 2010 at 8:38 AM, Davek <address@hidden> wrote:
>> Has anyone had Any success with amateur HF with the usrp? I would like to
>> purchase a basic rx and maybe a basic tx for monitoring the hf amateur
>> bands. I know i need lownoise amplifaction and filtering but not sure what
>> to get. I know i could just use the IF output of transciever, but im not
>> sure if thats what i wanna do. if anyone has setup something i would be
>> curious to hear about it thanks,
>> Dave
>
> Hi Dave,
>
> I have had the USRP1 and LFRX connected to a Butternut HF2V antenna
> with 30m and 160m extensions using ~30 meters of RG213 coax. No preamp
> or filter or anything else, and I could hear lots of SSB/CW traffic
> (even DX) and AM broadcast. I have two video recordings:
> AM on medium waves: http://www.youtube.com/watch?v=317Iu6HRA0w
> Hamradio SSB/CW on 7MHz: http://www.youtube.com/watch?v=t1FEq6h7Z1c
>
> I have measured the sensitivity in CW to 3-4 microvolts so yeah, a
> preamp would be useful above 10 MHz. I think one can get these
> "acrtive whip antennas" for shortwaves, I guess the filter and preamp
> could be used with a real antenna.
>
> I have not tried the transmitter on the air. For sure that will need
> power amplifier and low pass filters!
>
> Alex
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, (continued)
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, Josh Blum, 2010/09/25
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, Eric Blossom, 2010/09/25
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, Josh Blum, 2010/09/25
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, Tom Rondeau, 2010/09/26
- Re: [Discuss-gnuradio] UHD Announcement - September 23rd 2010, Eric Blossom, 2010/09/26
- [Discuss-gnuradio] USRP HF setup, Davek, 2010/09/25
- Re: [Discuss-gnuradio] USRP HF setup, Alexandru Csete, 2010/09/25
- Re: [Discuss-gnuradio] USRP HF setup,
Davek <=
[Discuss-gnuradio] Re: UHD Announcement - September 23rd 2010, Josh Blum, 2010/09/29