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bjorwal 18/06/2025
High impedance front end plus new LF amplifier found. Had to be charged for 5 hours before use. A high impedance tunable loop functions ok, but whip almost as good. F/W 1.01 loaded.
AMNVOLT Mini Si4732 Radio ESP32-S3 Pocket Radio Volledige Band DSP Ontvanger Ondersteuning FM AM MW SW SSB LSB USB Modus Ingebouwd HIZ met 3D Geprinte Behuizing
US$0.00
0
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bjorwal 29/04/2025
Arrived in plastic bags, the inner one ESD-safe. SMA-contact not soldered on the lower ground side. Gain and noise figure will be measured later.
LNA voor RTL-gebaseerde SDR-ontvangers Laag Ruis Signaalversterker
US$8.99 US$9.99
0
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bjorwal 18/03/2025
Some internal spuriouses. Not found any USB-C charging cable. Initial charging current 0.67 Amp. Automatic mode on some bands, with RDS info on FM. Initial short user guide found on the carton ceiling. Had to wait 1 month for the shipment, due to late manufacturing. First estimate was 1 week...
SI4732 Pocket Radio-ontvanger ESP32-S3 Bediening 1,9" IPS-display Volledig bereik LSB USB AM FM 800mAh batterij
US$0.00
0
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bjorwal 19/01/2025
Arrived in plastic bags, the inner of ESD-type. Gain and noise-figure will be measured later from 1MHz to 4.5GHz.
0.05-4GHz Ultra-laag Geluidsniveau NF=0.6dB Hoog Lineair Breedband Versterker LNA Ingang -110dBm
US$0.00
0
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bjorwal 14/01/2025
Arrived in plastic bags. With USB-C cable to charge the 18650 Li-ion cell. A carrying bag with an English user guide and 4mm probes. The IR function is surprisingly sensitive and do recall itself when necessary. The Macro-lense is useful at up to 3cm distance for a crisp view, which is blurry without. Can take photos with a time-stamp, to be transferred to a connected computer via the USB-cable. Recommended.
MUSTOOL MT14S/MT14SPRO Thermische Camera Multimeter & PCB Circuit Board Tester ISR 240x240 -20°C tot +550°C 25HZ 1000V gelijkstroom 750V wisselstroom 10A Weerstandsmeting
US$0.00
0
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bjorwal The lense is moveable sideways, can be slided in front of camera when needed

bjorwal 14/01/2025
Arrived in plastic bags. With USB-C cable to charge the 18650 Li-ion cell. A carrying bag with an English user guide and 4mm probes. The IR function is surprisingly sensitive and do recall itself when necessary. The Macro-lense is useful at up to 3cm distance for a crisp view, which is blurry without. Can take photos with a time-stamp, to be transferred to a connected computer via the USB-cable. Recommended.
MUSTOOL MT14S/MT14SPRO Thermische Camera Multimeter & PCB Circuit Board Tester ISR 240x240 -20°C tot +550°C 25HZ 1000V gelijkstroom 750V wisselstroom 10A Weerstandsmeting
US$0.00
0
Reacties (2)
bjorwal 01/02/2025
Somewhat poor packaging. Two Transformers damaged, due to they slipped out of the plastic packaging. One with crashed HV coil, the other with crushed ferriter core.
5 stuks 15KV Hoge frequentie Hoogspanningstransformator Hoogspanningsspoel Boost Inverter Plasma Boosting Coil
US$4.55
0
aanbevelingen
Reacties (1)
bjorwal 01/02/2025
Perfect amplifier for my high impedance antennas to 50ohm output. With suitable internal battery. Noise-figure and gain & impedances will be measured later.
Signaalversterker 100k-6GHz Volledig Bandbreedte Lage Ruis 9037BAT-LNA RF Versterker Hoge Lineariteit Ultra-Lage Ruis Gain Block Versterker
US$11.66 US$12.99
0
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bjorwal 07/10/2024
Billig antenn omkopplare. Borde ha bestyckats med dubbelbranchig omkopplare, som då gjort att enheten skulle klara > 50 Watts effekt mot dikterade 10 watt. Skärmväggar med elektrisk bra kontakt till chassiet=jordplanet. HF-egenskaper får mätas senare.
10W 1/2 Antenneomschakelaar RF/HF Hoogfrequente Schakelaar Handmatig Schakelen DC-500MHz
US$5.99 US$6.59
0
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Reacties (2)

bjorwal Oh yes, but for only some 10 to 20 watts. Could be higher attenuation of u connected port by connecting it to a 50ohm load or to ground it. But then it should cost much more...

bjorwal 07/10/2024
Billig antenn omkopplare. Borde ha bestyckats med dubbelbranchig omkopplare, som då gjort att enheten skulle klara > 50 Watts effekt mot dikterade 10 watt. Skärmväggar med elektrisk bra kontakt till chassiet=jordplanet. HF-egenskaper får mätas senare.
10W 1/2 Antenneomschakelaar RF/HF Hoogfrequente Schakelaar Handmatig Schakelen DC-500MHz
US$5.99 US$6.59
0
Reacties (2)
Baofeng UV-5RE Plus Dual Band Handheld Transceiver Radio Walkie Talkie
US$0.00

Q: What is the difference between 5RE vs 5RE Plus ?? Please any one answer my question?

gevraagd door Supratik Mallick op 2021-09-03 08:58:39

bjorwal Higher capacity battery

2025-01-16 01:16:40 Nuttig (0)
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Baseus 2.4A USB-A naar iP-kabel Snelle oplaad- en gegevensoverdracht Nylon gevlochten kernlijn 0.5M/1M/2M/3M lang voor iPhone 14 14Pro 14 Pro Max voor iPad Pro
US$0.00

Q: are these cable/brand certified from apple? cant find them in apple website

gevraagd door koullis op 2024-02-13 05:17:35

bjorwal Why do you need certification from Apple for just a functional high quality cable accessory ? Certification cost you extra $, but the cable is perhaps better than the expensive ones from Apple...

2025-01-16 01:15:17 Nuttig (0)
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DANIU 200 mm Slag 750N Belasting Mini Elektrische Actuator Lineaire Buisvormige Motor Beweging 12V DC
US$57.99 US$69.99

Q: what is the power we should apply? 12V 5A ?

gevraagd door BG151391423 op 2021-08-15 02:08:16

bjorwal Depends upon the applied load. Under normal use some 2A.

2025-01-16 01:10:08 Nuttig (0)
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bjorwal 14/01/2025
Turn selector first to the intended range and probes to the suitable recepticals. Then connect the probes. Using 2 AAA NiMH as power source makes the "low battery" symbol visable. Delivered with an English user guide. Warning: The probes are NOT the oedinary 4mm type, they are 3.3mm. Battery check 12V=14mA, 9V=12mA, 3V=12mA and 1.5V=11mA.
ANENG SZ305 1999 Telt multimeter Condensatortesters Professionele Slimme Voltmeter Wisselstroom/Gelijkstroom Spanning Stroom Weerstand Ohm Testgereedschap
US$0.00
0
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bjorwal 14/01/2025
CONVENIENTLY boxed. Arrived in a small hard plastic box clearly visualising the clips. Bypacked a user manual in English and Chinese. Maximum current stated as 2A, voltage 40V. Thank you.
10 stuks SDK08 testclip SMD-grijpers testclips Ultraklem, Voetzekering Micro Chip Online Brandend Clip
US$8.23
0
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bjorwal 14/01/2025
Just the right antenna. For tracking EMC non compliance units, these band-shifting antennas are small and useful. Thank you.
Donut AM MW/SW Antenne Mini Lus Antenne voor HFDY Malahiteam DSP DSP2 Ontvanger HF Midden Golf
US$0.00
0
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bjorwal 14/01/2025
CONVENIENTLY MARKED All different capacities and voltages clearly market upon the box. Thank you.
1UF ~ 1000UF 6,3V-50V 400 stuks 24 waarden SMD aluminium elektrolytische condensatoren assortiment kit
US$10.99
0
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bjorwal 16/07/2024
Tested about all functions and all turned out to be working OK. Included obviously an EMI filter, and noise output is low. Cooling fan activated when necessary. Short beep when control is not active anymore. USB fast charging mode detected. Happy with this purchase. Thank You.
WANPTEK Lab Bench Voeding 150W 300W 360W Laboratorium Schakelende Voedingseenheid 30V 60V 120V 3A 5A 10A Verstelbare Digitale Bron Voltage Stabilizeerder
US$0.00
1
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bjorwal 14/12/2024
In comparison with TinySAultra quite a few improvements BUT the menu tree is still not in line with logical and most common usage. An HP -analyzer menu tree is excellent for productivity and use, they have had >50 years of making the tree most productive. When will this unit and TinySAultra have the same structure ? The battery last a few hours of use =excellent. Upper freq of 12GHz or 16 GHz in some settings is superb. Awaiting a F/W update.. Recommended!
SA5 PORTXVNSA 4 inch IPS LCD Multifunctionele Draagbare Spectrum Analyzer 100k-5.3GHz Signaalgenerator Spectrum Analyse Meten
US$0.00
0
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bjorwal 04/09/2024
Utspänning DC och AC-rippel helt OK.Fläkten startar vid behov. Leverans snabbt till dörren, super.
WANPTEK Laboratorium Bench Voedingsvoorziening 150W 300W 360W Laboratorium Schakel Voedingsunit 30V 60V 120V 3A 5A 10A Verstelbare Digitale Spanningsstabilisator EU Plug
US$0.00
0
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