Re: NanoVNA does not want to start -solved
Hello all-
I ordered a NanoVNA on eBay and received a black version in a plastic case with mixer shielding and accessories (cables and calibration kit). Mine was like Herman's; it would boot when powered via USB but would not boot via the battery using the ON/OFF switch even when 'fully charged' with the blue charge indicator full-on (without flashing). I read Herman's post and wondered if maybe the IP5303's 'KEY' function state is not guaranteed when leaving the chip factory. So I found a junkbox leaded 10K resistor, bent the leads into a 'U', and touched one end to the battery minus (i.e. IP5303 ground/EPAD) and the other to the IP5303 'KEY' pin (pin 5) for about 1 second. The blue charge indicator came full-on for about 30 seconds, then switched off. But now it boots via battery using the ON/OFF switch! I don't know how long this state will persist- perhaps until the battery discharges completely or is disconnected. This may also have implications for people who received units which functioned normally upon arrival- if their battery goes completely flat, does the IP5303 go into a sleep state requiring the 'KEY' pin to be pulled down 'briefly' via a 10K resistor? I don't know the answer. Anyway, thank you Herman for the fix!
73, Joe F. KC8RKL
|
After reading some reviews I have placed an order from seller 'Guangyi0016 Store' at AliExpress.
Hope to get in in a couple of weeks.
//Lars SM0TGU
|
Re: Measurements on my NanoVNA
Positive Surprised, but i am not an RF-Engineer. :)
Had as comparison a Rohde & Schwarz ZVH4 and a RigExpert AA-600.
|
Re: Measurements on my NanoVNA
On Wed, Aug 14, 2019 at 03:37 AM, <df6dbf@...> wrote:
I have done some Measurements on my NanoVNA. Maybe the tolerances are higher
at other NanoVNA but i am very surprised of my Results. Is there anyone out wo
can confirm my work?
All frequencies are dependent on the tolerance of the fixed crystal in the unit. Errors will track with this crystal. Some "black" NanoVNAs have found errors as small as 5 Hz at 30 MHz. Some "white" NanoVNAs show a larger frequency deviation of 300 Hz at 30 MHz. My $28 ebay auction "white" Gecko unit has a frequency error of 150 Hz at 30 MHz.. My black unit is much better, around 3 Hz. . Note too, that it is easier for most of us to just just measure frequency output with a GPS disciplined counter. No need for spectrum analyzer.
|
Re: Measurements on my NanoVNA
Hello Holger,
Surprised positive, or surprised negative?
What is the reference?
73, Rudolf DL5FA
|
Measurements on my NanoVNA
I have done some Measurements on my NanoVNA. Maybe the tolerances are higher at other NanoVNA but i am very surprised of my Results. Is there anyone out wo can confirm my work?
The Frequencies are compared with an Stabilock4040 and an R&S ZVH4 Antenna-Analzyer with Spectrum Option. The Reference came from an GPS disciplined 10MHz TCXO.
73s Holger, DF6DBF
|
Aliexpress DOES take paypal, however there is a small service charge (~$2) for this.
I just ordered from one from them. It's probably worth stating that you are not ordering from Aliexpress. Aliexpress is a marketplace, in much the same way as eBay or Amazon Marketplace. They provide a platform, and an escrow system to ensure the buyer is happy before payment is released to the vendor. I get that this is a small distinction to many, but it's worth being clear. 73 Gerry
|
No, not true, and there¡¯s a lot more going on than just tariffs.
But this is definitely not the place for this discussion.
There will be no further comments from me on the subject.
Peter
toggle quoted message
Show quoted text
On Aug 13, 2019, at 11:38 PM, Warren Allgyer <allgyer@...> wrote:
An ignorant comment. ¡°Cheeto¡¯s¡± tariffs have been completely absorbed with the Chinese government¡¯s devaluation of the yuan. Anyone who accepts an increase in price ¡°because of the tariffs¡± is being jobbed.
The rest of the world is grateful for Cheeto¡¯s willingness to stand up to China¡¯s economic bullying.
On Aug 13, 2019, at 7:06 PM, ken WA2MZE <wa2mze@...> wrote:
Not to mention Cheeto's Tariffs on Chinese goods.
On 8/13/19 1:58 PM, Peter Gottlieb wrote:
Chinese sellers are VERY sensitive to demand and will raise asking prices quite quickly on any hint of a pick up in demand.
Peter
On Aug 13, 2019, at 1:52 PM, Joe Rocci <joe@...> wrote:
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
An ignorant comment. ¡°Cheeto¡¯s¡± tariffs have been completely absorbed with the Chinese government¡¯s devaluation of the yuan. Anyone who accepts an increase in price ¡°because of the tariffs¡± is being jobbed.
The rest of the world is grateful for Cheeto¡¯s willingness to stand up to China¡¯s economic bullying.
toggle quoted message
Show quoted text
On Aug 13, 2019, at 7:06 PM, ken WA2MZE <wa2mze@...> wrote:
Not to mention Cheeto's Tariffs on Chinese goods.
On 8/13/19 1:58 PM, Peter Gottlieb wrote:
Chinese sellers are VERY sensitive to demand and will raise asking prices quite quickly on any hint of a pick up in demand.
Peter
On Aug 13, 2019, at 1:52 PM, Joe Rocci <joe@...> wrote:
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
So many will feel the effects of a trade war. Unfortunate how so many people will be negatively impacted. I hope it gets resolved soon but am not very hopeful. It¡¯s a real question whether my company can get through it.
Peter
Kb2vtl
toggle quoted message
Show quoted text
On Aug 13, 2019, at 7:06 PM, ken WA2MZE <wa2mze@...> wrote:
Not to mention Cheeto's Tariffs on Chinese goods.
On 8/13/19 1:58 PM, Peter Gottlieb wrote:
Chinese sellers are VERY sensitive to demand and will raise asking prices quite quickly on any hint of a pick up in demand.
Peter
On Aug 13, 2019, at 1:52 PM, Joe Rocci <joe@...> wrote:
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
Not to mention Cheeto's Tariffs on Chinese goods.
toggle quoted message
Show quoted text
On 8/13/19 1:58 PM, Peter Gottlieb wrote: Chinese sellers are VERY sensitive to demand and will raise asking prices quite quickly on any hint of a pick up in demand.
Peter
On Aug 13, 2019, at 1:52 PM, Joe Rocci <joe@...> wrote:
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
Aliexpress DOES take paypal, however there is a small service charge (~$2) for this.
I just ordered from one from them.
toggle quoted message
Show quoted text
On 8/13/19 7:48 AM, Brian Ray via Groups.Io wrote: I am nervous when giving my card details to someone whom I don¡¯t know. Hence my preference is to use Paypal. This is not available via aliexpress I understand. Hence I turn to ebay as first choice.
My black nanovna with all the extras, usb C and lead, came from ¡°flyxy2015¡± and is ebay item 143272472926. Price was good and I received it in Cyprus in 3 weeks. I was pleased to give him 5 stars. The load shunt was within 0.1 ohm of 50 and had a manufacturer¡¯s serial number on it. (Measurement limited by my Marconi bridge).
5B4AHW
On 13 Aug 2019, at 00:09, Marius Milner <mariusm@...> wrote:
I got mine here:
Delivery to California was 2 weeks.
AJ6KL
On Mon, Aug 12, 2019 at 12:01 PM <km6rcj@...> wrote:
Hal,
I got mine from eBay (link and seller below). It came with the shielding,
4 traces, plastic case, 3pc Cal kit, USB C connector and cable, etc.
Seller: Elecdesign2015
Hope that helps.
KM6RCJ
|
Re: NanoVNA does not want to start -solved
You are right, the PDF is from the IP5306, but the pin 5 commands work the same. I post it anyway.
It is a good alternative. I no longer need the on/off switch.
cheers,
Herman ON1BES
|
Re: I'm looking for the latest PC software
Thank you for your reply. Got it. Bob
toggle quoted message
Show quoted text
On Tue, Aug 13, 2019, 12:16 PM Larry Rothman <ac293@...> wrote: Bob,
hugen is the author/creator of NanoVNA-Sharp and the application is NOT
opensource.
There is only a PC version - maybe you could see if it runs under WINE on
Linux?
You can find his latest releases of firmware and PC app on his google
drive link in one of his previous posts.
Regards,
Larry
|
Re: I'm looking for the latest PC software
I was curious about the PC s/w, so I searched for the link:
I updated the wiki to make life easier for anyone searching for this in the future.
-- Neil
|
Re: I'm looking for the latest PC software
Bob,
hugen is the author/creator of NanoVNA-Sharp and the application is NOT opensource.
There is only a PC version - maybe you could see if it runs under WINE on Linux?
You can find his latest releases of firmware and PC app on his google drive link in one of his previous posts.
Regards,
Larry
|
I'm looking for the latest PC software
Could someone please add the PC software for NanoVNA v1.03 (or if there is a newer version) to the Files section? It would also help if Mac and Linix versions were added. Bob
|
Thanks to all who replied. I have one on order. Hal/WB4AEG
toggle quoted message
Show quoted text
On Tue, Aug 13, 2019 at 1:52 PM Joe Rocci <joe@...> wrote: Got mine from EBay seller color-fashion6 for $50. My unit has the RF
shielding and the built-in battery. Came in a nice plastic storage case
along with calibration loads and cables.Works exactly as advertised. Demand
must be increasing because price is now up to $58 just 3 weeks after I
purchased.
I'm really impressed what this little gem can do! It pretty much blows
every other antenna analyzer and portable VNA out of the water, especially
at the price point. My only complaint/suggestion is that it would be easier
to use if it were about twice the size with a corresponding larger display.
However, once you hook it to a computer it looks and works like a 'big box'
unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it
.
Joe
W3JDR
|
Chinese sellers are VERY sensitive to demand and will raise asking prices quite quickly on any hint of a pick up in demand.
Peter
toggle quoted message
Show quoted text
On Aug 13, 2019, at 1:52 PM, Joe Rocci <joe@...> wrote:
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
Got mine from EBay seller color-fashion6 for $50. My unit has the RF shielding and the built-in battery. Came in a nice plastic storage case along with calibration loads and cables.Works exactly as advertised. Demand must be increasing because price is now up to $58 just 3 weeks after I purchased.
I'm really impressed what this little gem can do! It pretty much blows every other antenna analyzer and portable VNA out of the water, especially at the price point. My only complaint/suggestion is that it would be easier to use if it were about twice the size with a corresponding larger display. However, once you hook it to a computer it looks and works like a 'big box' unit costing at least 50x more.
Definitely worth the money. Every shack/bench should have one. I rate it .
Joe
W3JDR
|
SM0TGU
Warren Allgyer
Hal Dale