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Airspy Mini calibrate
#hardware
Dave C aka Dave3825us
Can anyone who calibrated their airspy please post directions? Unitrunker has been sounding like crap lately and I ran sdr# on some of the 800MHz freqs and it seems to be off. At 162.475, it seems dead on. On 477.8875 it seems dead on. When getting into the 700's, its not dead on.
Any help or advise would be greatly appreciated. Thanks
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Re: New server West of Scotland - Is it working?
John
Hi John
are your server up and running? as I tried again but no signal on my remote airspy software 73 Claudio. Sorry to say server won't be running again until this coming weekend. I hope by that time to have sorted the irritating RFI from the server computer which makes slight but regularly spaced lines on the waterfall. And replace the horizontal portion of the main antenna - 100m - with something more durable for the winter. Planning to experiment with kevlar cored ultralight DX antenna wire which resists stretch and has an OD of only 1.5mm. Wellbrook Loop as back-up. We had a power cut last week in my absence and everything failed to reboot (because I forgot to tell it to) so that needs sorting for the next outage. I will post when service resumes. Airspy R2 with Spyverter for the moment... John
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Re: HF+ In real Life
Roberto Zinelli
Hello Simon,
Do you have a VLF antenna? should be nice to connect the antenna for one day to AIRSPYHF+ spyserver for test. I would verify the possibility to receive the alfa stations, my be at 14,88 Khz.... a true test for S.A.Q. event at Christmas eve. 73 IW4ENS Roberto
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Re: New SpyServer optimizations and features
#spyserver
KiwiSDR is solid in NJ. Did you adjust the Buffer size 50 and Buffer count 30 on
spyserver? Jeff
On 11/14/2017 4:24 PM, Martin via
Groups.Io wrote:
Jeff,
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Re: Airspy HF+ available at Wimo
#airspyhfplus
Eric Oyen <eric.oyen@...>
another airplane! fan heard from! :)
toggle quoted messageShow quoted text
DE n7zzt Eric
On Nov 14, 2017, at 1:47 PM, Fred Hillhouse wrote:
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Re: New SpyServer optimizations and features
#spyserver
Martin - G8JNJ
Jeff,
Can you also try my KiWi web sdr which is running over the same network. http://southwest.ddns.net:8073 See if the web sdr also has problems if you run that and the spyserver connection concurrently. Regards, Martin - G8JNJ
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Re: Good CAT and/or Omnirig Plugin?
I tested it some time ago, but it is bery "basic".
Omnirig support could be wonderful !
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Re: New SpyServer optimizations and features
#spyserver
Martin - G8JNJ
OK, thanks for the report.
It could be that my other Web SDR's are using up my limited uplink bandwidth. I'll take another look at it tomorrow. Regards, Martin - G8JNJ
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Re: Airspy HF+ available at Wimo
#airspyhfplus
Fred Hillhouse
Absolutely and please don’t call me Shirley.
From: main@airspy.groups.io [mailto:main@airspy.groups.io] On Behalf Of Simon Brown
Sent: Tuesday, November 14, 2017 3:46 PM To: main@airspy.groups.io Subject: Re: [airspy] Airspy HF+ available at Wimo #airspyhfplus
Shirley there should be 0% duty on the HF+?
Simon Brown, G4ELI
www.dxgalaxy.com
From: main@airspy.groups.io [mailto:main@airspy.groups.io] On Behalf Of responses@...
Yes but when customs get the incoming parcel they will add 5% duty to the HF+ price
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Re: Airspy HF+ available at Wimo
#airspyhfplus
Simon Brown
Shirley there should be 0% duty on the HF+?
Simon Brown, G4ELI
www.dxgalaxy.com
From: main@airspy.groups.io [mailto:main@airspy.groups.io] On Behalf Of responses@...
Yes but when customs get the incoming parcel they will add 5% duty to the HF+ price
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Re: Tinker Board Direct Sampling server
Since I am running a rtl-sdr dongle with only 2M width on my
Tinker Board, I decided to automate changing the bands that I listen to throughout the day. Basically , by restarting spyserver with a different config file
after a pre-determined delay. So the first effort is a simple script that will loop. Next, I will move this to a cron to be more accurate. Jeff (linux hack!) #!/bin/bash
On 11/14/2017 10:24 AM, Jeff Kelly
wrote:
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Re: New SpyServer optimizations and features
#spyserver
Martin,
Lots of stutter in New Jersey.
Jeff
On 11/14/2017 2:50 PM, Martin via
Groups.Io wrote:
Hi Jon,
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Re: New SpyServer optimizations and features
#spyserver
Martin - G8JNJ
Hi Jon,
Try my V3 running in direct sampling mode with no filters. sdr://g8jnj.zapto.org:5557 Regards, Martin - G8JNJ
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Re: New SpyServer optimizations and features
#spyserver
Hi Jon,
The Wellbrook tends to have a high output on the lower frequencies. You could try adding something like a 100pF capacitor in series with the RF feed to the RTL-SDR as a very crude amplitude equaliser. This will roll off the gain at 2MHz by about 20dB and 1dB at 30MHz but will still be OK for MF reception as the natural noise floor tends to dominate on the lower frequencies. If the attenuation is to much try a slightly larger value of capacitor until you find a happy compromise. Here's a link to an online attenuator calculator. https://www.everythingrf.com/rf-calculators/attenuator-calculator Regards, Martin - G8JNJ
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Re: Good CAT and/or Omnirig Plugin?
There is a CAT plugin for Sdr#, its called sdrsharp-catcontroller
Its been a while, the but when I did try it previously, it worked very well. Presents sdrsharp as a TS50 Find it on Google and/or gitHub 73 de kc1ccr bammi
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Re: Airspy HF+ available at Wimo
#airspyhfplus
G5VU
My experience with previous Airspy purchases from Itead has taught me that it's very well worth taking the gamble regarding any import duty and VAT etc
toggle quoted messageShow quoted text
At the moment I'm winning 2-0 73s Tracey G5VU
----- Original Message -----
From: Alan G4ZFQ <alan4alan@gmail.com> Reply-To: <main@airspy.groups.io> To: <main@airspy.groups.io> Sent: 14-Nov-17 5:22:25 PM Subject: Re: [airspy] Airspy HF+ available at Wimo #airspyhfplus ________________________________________________________________________________ For the UK, the Wimo price of 232 Euros equates to roughly £209 plusTracey, Which includes tax. Around £33 VAT. I missed out on the discount voucher but still only paid £161 incWhich does not, best of luck! 73 Alan G4ZFQ So there is a fairly hefty mark up of over 25% if we use the main source
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Re: New SpyServer optimizations and features
#spyserver
Jon Fear
Wow! Still won't be long and then the Wellbrook will be put to good use....
1623 installed and running, just a few tests now. Thanks for everything Youssef.
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Re: New SpyServer optimizations and features
#spyserver
On Tue, Nov 14, 2017 at 09:55 am, Jon Fear wrote:
..And there was I thinking all was good on 1622! Downloading 1623 now...Here's the funny part: https://twitter.com/lambdaprog/status/930489661063036931
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Re: New server West of Scotland - Is it working?
claudio36itus
Hi John
are your server up and running? as I tried again but no signal on my remote airspy software 73 Claudio
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Re: New SpyServer optimizations and features
#spyserver
Jon Fear
...And there was I thinking all was good on 1622! Downloading 1623 now...
As for an attenuator, oops, not got one....Time for some more home brew building. Anyone got any good designs that I can knock up? Still the HF+ will be here soon... VHF from Weston super Mare will be online later (87.50MHz through 150MHz). BW Jon
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