Re: Spurs and Harmonics - Definitions and Measurements
Bruce, K4TQL
Small point...the FCC monitors would be testing received RF. This may be
via a remote monitoring
station or from a van parked down the street from your house. This means
that the full
By
Arv Evans
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#66374
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Re: AGC Pre-Oders are in and built!
I have a few years left in me, my hands are slowly rebelling and going weak. I may be steady but my grip is going.
--
David
?N8DAH
Kit-Projects.com ( http://www.kit-projects.com )
Shop is open! (
By
N8DAH
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#66373
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Re: Should I wait to buy a ubitx?
If it bothers you so much, I think you, yourself, should suspend buying one and go buy a Yeasu or Kenwood or Icom or maybe even a Baofeng!
Vince - K8ZW.
--
K8ZW http://www.metalworkingfun.com
By
Vince Vielhaber <vev@...>
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#66372
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Re: AGC Pre-Oders are in and built!
Amazing! I imagine you do brain surgery on the weekends (grin) Steady hand. I used to be able to do smd however now I would probably sneeze and blow the whole pile of boards and parts bin right off
By
Jim
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#66371
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Re: #bitx20 Ver 5 relays.
#bitx20
I have Axicom relays installed because it was ver. 3 and it was really
needed. Ver. 5 is greatly improved and, according to the advertising,
should be fine. If you replace them with Axicom you should
By
iz oos
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#66370
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Re: ubitx.net up to date
Thank you, Curt!? ?It's actually a very nice construction document.? Based on that, it wouldn't be too hard to make into a kit.
By
Brutus Laurentius
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#66369
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Re: Should I wait to buy a ubitx?
I think they should suspend sales until they can finally get it right and
produce a unit that you don't have to mod to high heaven to make it work
properly.
Bill - K5MIL
By
Bill Harris - K5MIL
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#66368
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#bitx20 Ver 5 relays.
#bitx20
Just received what I assume is a Ver 5 mother board , shows 06 19 stenciled on board, and it has HFD27/012-S relays. Should these be changed to axicom relays?
Jim
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Jim
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#66367
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Re: Ordered my v5 ubitx today, case delivery tomorrow!
I was shocked at the speed the case was delivered . Ordered it Thursday and it arrived today.? ?That's as fast as Amazon and it came from India!
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Brutus Laurentius
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#66366
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Re: AGC Pre-Oders are in and built!
Oh my goodness!
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SAM R BURNES <sburnes@...>
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#66365
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Re: Spurs and Harmonics - Definitions and Measurements
Thanks Mark, Ashar and Curt.
Mark I did look but I didn't figure it would be in Part 97.? What I did find was a procedure written by the IEEE which gave step by step how to test for the spurious
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BruceN
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#66364
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Re: AGC Pre-Oders are in and built!
Thought I would post a live stream building the next batch enjoy
http://47.224.85.241:48461/
--
David
?N8DAH
Kit-Projects.com ( http://www.kit-projects.com )
Shop is open! (
By
N8DAH
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#66363
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Re: Spurs and Harmonics - Definitions and Measurements
Bruce
Mark adds some clarity.? Those measurements you describe relate to 'unintended' radiation apart from the antenna connector path - yes we often experience this in our homes and workplaces.? In
By
Curt
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#66360
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Ordered my v5 ubitx today, case delivery tomorrow!
Boy am I excited!? My case from amateurradiokits.in is almost here, and I was able to order my V5 ubitx today!?Kelly K5AID?Sent from my Verizon, Samsung Galaxy smartphone
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Kelly Mabry <kmabry2007@...>
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#66359
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Re: ubitx.net up to date
A circuit board contains 3 added relays that connect to the input side of the 4 low pass filters.? Following assembly of this board, the user must cut a few traces and then install short pieces of
By
Curt
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#66357
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Re: ubitx v4 - distortion in received audio
Thanks so much Mark. I also spoke to Raj. I will try the modification tomorrow and report back.
73
Ramakrishnan VU3RDD
By
Ramakrishnan Muthukrishnan
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#66356
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Re: A Full Screen 3.5
#nextion
That's excellent! I didn't do anything further. I removed my hmi upload so it could be tested before too many people downloaded it.
By
Sam Tedesco
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#66355
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Re: Spurs and Harmonics - Definitions and Measurements
Bruce,
Your point is well noted. I made a similar argument. It ia true that a -40
dbc at 10 watts is less than -48 dbc at 100 watts.
However, this is largely a challenge of compliance. The FCC
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Ashhar Farhan
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#66354
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Re: Spurs and Harmonics - Definitions and Measurements
Is is really such gibber?
You seem to have a good understanding of dB.? Here's the text on the specific levels:
*¡ì97.307???Emission standards.*
...
(d) For transmitters installed after January
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Mark - N7EKU <n7eku@...>
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#66353
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Spurs and Harmonics - Definitions and Measurements
I've seen many messages relating to the cures for spurs and harmonics for the V3, V4 and V5 units.? Right now there are nearly 1000 messages dealing with this topic.? But, I'm confused.? And, what
By
BruceN
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#66352
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