JUNTEK product technical support, - Page 1
Forum section: electronics / testgear

author: Kang le
author_rank: Newbie
timestamp: August 06, 2020, 02:02:10 am
content: Hello dear friendsI am a technical support engineer for JUNTEK products. I hope to provide some help to who owns JUNTEK products or those who want to learn more about JUNTEK products on the eevblog platform. I also hope to get suggestions from you on the eevblog platform. We will try our best to show satisfactory works to you.China Hangzhou Junce Instrument Co., Ltd.

author: Midori
author_rank: Newbie
timestamp: January 16, 2021, 11:30:51 am
content: Hello Kank LeI purchased VAT1030 and want to us it to indicate my 12V car battery voltage during covid lockdowns. I am an electrical engineer but I find the VAT1030 documentation difficult to understand.First of all, it is working fine, and with wireless coms about 4 meters with seldom dropouts.I want to configure the VAT1030 with minimum power consumption so as not to drain car battery too quickly.I have not activated "low Volt Alarm", and set Output relay to "off" so LED is always off and least power drain from VAT1030.Please see attached wiring diagram.Question 1 - Have I connected VAT1030 correctly?Question 2 - How to indicate current drain (mA) of VAT1030 ? Can I modify wiring to enable current consumption of VAT1030?

author: mawyatt
author_rank: Super Contributor
timestamp: January 16, 2021, 03:29:02 pm
content: Hello Kang Le,We purchased the Juntek DPA-1698 and reported here.https://www.eevblog.com/forum/testgear/awg-buffer-amp/msg3368650/#msg3368650This is a nice AWG amplifier and great value, however it does have a couple issues. The fan is noisy and we can't get to the full +-1a peak spec output (we get ~0.9amps) before the amp goes into limit cycling. Is it possible to get a less noisy fan for replacement?? Also, has Juntek considered replacing the LM1875 with the LM3886 which has the SPIKe SOA protection and mute capability? This could help with the large output exclusion when power is removed, see details mentioned above.We just ordered the DPA-2698 since the 1698 has proven to be a good AWG buffer amplifier in general.Best,

author: Old Radio Guy
author_rank: Newbie
timestamp: June 16, 2023, 09:14:15 pm
content: Hi,I just purchased a PSG9060 Programmable Signal Generator and would like to know if there is any way to leave the modulation screen back to the main screen without turning modulation off. I would like to be able to set up modulation and then vary carrier frequency and level in order to align a radio.If not, I would like to request an update that allows turning modulation on and off independent without having to stay on that screen.Thanks,Alan

author: cbs1
author_rank: Newbie
timestamp: December 04, 2023, 11:00:47 pm
content: Warning: this topic has not been posted in for at least 120 days.yes is truly...any way i will try to post my problem ....So and me i have problem with PSG 9060 ...the generator it was connected with a oscilloscope in sync and one outputs as i remember the 1 channel...it was test a tx transmitter in SW in 1,8 mhz ...the transmitter was oscillate and in the environment was created a RF field and the generator stops working and the power indicator starts flash....we stop the power -disconnect all and power up again the PSG 9060 alone the display is open but is not has other functions...the question is can repair and is worth it????or any other help pls...

author: cbs1
author_rank: Newbie
timestamp: December 08, 2023, 11:13:03 am
content: so i,m comings back to foult...mr KANG LEE helps me to give solution for this problem ...so the function generator is back to life and works fine ..many thanks to supporting company junctek and to KANG LEE ....

author: xrunner
author_rank: Super Contributor
timestamp: December 08, 2023, 01:25:17 pm
content: Quote from: cbs1 on December 08, 2023, 11:13:03 amI'm afraid Kang Le is long gone ...

author: coromonadalix
author_rank: Super Contributor
timestamp: December 08, 2023, 01:57:42 pm
content: Last Active:September 21, 2020, 09:33:11 am

author: clement
author_rank: Newbie
timestamp: December 09, 2023, 02:56:37 am
content: If you need technical support, please contact sales@junteks.com

author: cbs1
author_rank: Newbie
timestamp: December 09, 2023, 07:54:40 am
content: Ok Just for the forum a notice...yes there is alive Kang lee has not ago long time ...the truth is he still has offers help via help desk off AliExpress where the Junctek has the store...if you want any help go there and you will......and again thanks to him ..BCS the PSG 9060 is back to life