NISSEI -

NISSEI RX-103 Mini SWR/Watt Meter 2KW | 1.6-60MHz HF/V/U Band High Quality Power Meter for Walkie Talkie

topradio — Fri, 23 Jan 2026 10:37:19 +0000

NISSEI RX-103 Mini SWR/Watt Meter (2000W, 1.6-60MHz)

Ensure optimal performance and protect your equipment with the NISSEI RX-103 Mini SWR/Watt Meter. Designed for versatility, this high-quality power meter covers a broad frequency range from 1.6 to 60MHz, making it suitable for HF, VHF, and UHF band operations. With a robust power capacity of up to 2KW, it is ideal for both base stations and high-power handhelds (walkie talkies). Its compact, mini design allows for easy integration into any radio shack or portable setup without sacrificing accuracy. Whether you are tuning your antenna or monitoring output power, the NISSEI RX-103 provides reliable, precise readings for amateur radio enthusiasts and professionals alike.

Maintain your transmission signal quality with the NISSEI RX-103 Mini SWR/Watt Meter. Despite its compact size, this 2KW high-quality power meter covers the full HF/V/U Band (1.6-60MHz). Designed for durability, it is the ideal precision tool for monitoring SWR, Forward Power, and Reversing Power in amateur radio and walkie talkie operators.

Description:
– RS-103 can measure forward and reverse power, as well as forward RF power readings. It can switch to any peak average power SSB and AM transmitter power (REP).
– The RS-103 has a measurable power range of up to 2KW.
– The structure with low insertion loss (0.3 decibels or lower) allows it to be permanently connected.

Specification:
– Frequency range: 1.6 – 60MHz
– Measurable power range: up to 2KW
– Minimum measuring power: 1W
– Impedance: 50ohm
– Product size: 140 x 84 x 122mm
– Product net weight: 780g
– Connector: M-J connector

Precision (5W Input):
– Average value: ±10%
– Peak value: ±15%

Precision (20-2000W Input):
– Average value: ±5%
– Peak value: ±10%

Package Included:
– 1 x Meter
– 1 x 13.8V DC Power Cable
– 1 x User Manual

The post NISSEI RX-103 Mini SWR/Watt Meter 2KW | 1.6-60MHz HF/V/U Band High Quality Power Meter for Walkie Talkie appeared first on .

NISSEI TX-502 Mini SWR Watt Meter Free Shipping

topradio — Wed, 07 May 2025 04:45:51 +0000

NISSEI Mini TX-502 SWR/Watt Meter 1.6-525MHz HF/V/U Band 200W Power Meter for Walkie Talkie

Description:

– The TX-502 SWR and power meter can be directly read without any calibration. Three color scale design to improve readability; LED backlight provides smooth and uniform lighting.
– A true directional coupler to improve accuracy beyond frequency. The personal instrument scale for each power range improves the accuracy of readings.
– The RS-103 has a measurable power range of up to 200W.

Specification:
– Frequency range: 1.6 – 525MHz
– Centre calibration: 28.5/145/435MHz
– Power range: 0 – 200W
– Power scale: 2/20/200W
– Maximum power: 200W
– Accuracy: ±10% of full scale or higher proportion (note: 20W/1260MHz)
– Insertion loss: < 1.2:1
– Testing function: electricity power, SSWR, PEP
– Impedance: 50ohms
– Connector: M-type
– Input power: 9 – 14VDC, 200mA
– Product size: 184 x 118 x 131mm
– Net weight: 1070g

Package Included:
– 1 x Meter
– 1 x 13.8V DC Power Cable
– 1 x User Manual

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NISSEI NS-1230M Communication Switching NS1230M Power Supply 30A 4V-16V Adjustable Base Station for Car Radio Audio Systems

topradio — Wed, 23 Oct 2024 08:48:12 +0000

NISSEI NS-1230M Communication Switching NS1230M Power Supply 30A 4V-16V Adjustable Base Station for Car Radio Audio Systems

Specification:

model: NS-1230M

input voltage: AC 110 V or 220 V, + / – 10%, switchable

Input frequency: 47～63 Hz

Polarity: negative pole

output voltage: 4-16 V adjustable

Continuous current (13.8 V) 25 A

Surge current (13.8 V) 30 A

Ripple and noise : Peak to peak ripple and noise < 100mV

Size: 154×127×63mm

Net weight: 1.35 kg

Package:

1 x Switching Power Supply

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NISSEI RS-50 Compact Digital SWR Watt Meter 125-525 MHz for Two Way Radio

topradio — Wed, 30 Mar 2022 11:06:47 +0000

NISSEI RS-50 Compact Digital SWR Watt Meter 125-525 MHz for Two Way Radio

Main Features:

1.Forward/Reversed/VSWR ration in one push button.

2.LED backlit display for ease of reading.

3.Power Source: internal “AAA” batteries/external USB Port.

4.Applicable rechargeable battery.

5.Micro USB-DC5V Ouput(not include adapter).

6.Convenient control layout for ease operation.

Specification

Frequency Range

12-525MHz
Center Calibrated
145MHz(VHF)
435MHz(UHF)
Power Range
0-120W ±5%
Testing Functions
Fwd/Rev Power,SWR
Insertion Loss
0.3dB or Lower
Impedance
50Ω
Power Source
Battery”AAA” or Micro USB Port
Connector
SO239 M Type
Dimension
70W*78H*30Dmm
Net Weight
220g (no batteries)

Measurement:

1.Apply output of transceiver to “TX” and antenna or load to “ANT”.

2.”POWER” on for ready to use.

3.LCD display show simultaneously “Fwd/Rev Power and SWR”.

4.For back=light,please switch”LIGHT” to “ON”.

No function in 30 seconds,The backlit will automatically off.
Once PTT launched, the backlit will be back.

Battery Installation:

1.Remove the black screw from the cover to opern the rear panel.

2.Install 2pcs “AAA” batteries.

3.Can be used with alkaline or Ni-ca,Ni-MH rechargeable battery.

4.This unit has no built-in charging circuitry.

5.Be sure to correct polarity of battery.

6.Remove the battery if the unit won’t be used in long period.

Noticement:

1.Can be used both alkaline battery (1.5V) or rechargeable battery (1.2V)

2.This unit has no built-in charging circuitry.

3.Be sure to switch off both “Power” & “Light” after use for saving battery power.

MODEL	RS-50	RS-70
Frequency range	125 – 525 MHz	1.6-60 MHz
Measurable power range	0 – 120W	0 – 200W
Max. Power	120W	200W
Accuracy	(AVG) +/- 5%
Insertion loss	0.3 dB or lower
Testing functions	Fwd/Rev Power, SWR
Impedance	50 ohm
Power source	Battery – “AAA” x 2pcs / Micro USB port
	AC110-240V (adapter output 5V / 2.0A)
Connector	SO-239 (“N” type optional )
Dimension	70W x 78H x 30D mm
Net Weight	220 g (No batteries)

Packing List:

1× NISSEI RS-50 Digital SWR/Watt Meter
1× User’s Manual

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NISSEI RS-502 Watt Tester 1.8Mhz-525Mhz Short Wave VHF UHF Radio Communication Transceiver Power SWR Meter Accessory

topradio — Wed, 30 Mar 2022 10:55:03 +0000

NISSEI RS-502 Watt Tester 1.8Mhz-525Mhz Short Wave VHF UHF Radio Communication Transceiver Power SWR Meter Accessory

Product Description
This SWR/Watt meter is a highly accurate RF meter for measuring Forward Power, Reverse Power and VSWR.

Main feature:
* Large meter display for easy reading.
* RF power forward reading. Switchable to show the average strength of the Envelope
Power (REP) for SSB and AM transmitters.
* Reflected RF Power Reading.
* VSWR ratio.
* Illumination meter.
* User-friendly control layout for easy operation.

Product : SWR and Power Meter
Brand : Nissei
Type : RS-502

Specification:
* Frequency Range : 1.8 – 525 MHz
* Power Range : 1 – 200 W
* Power Scale : 5/20 / 200 W
* Maximum Power : 200 W
* 5W Accuracy Range:
(AVG) +/- 10%
(REP) +/- 15%
* Accuracy Range 20 – 3 KW :
(AVG) +/- 5%
(REP) +/- 10%
* Minimum Power for SWR : 3 W
* Input / Output Connector: SO-239 (Type M) / PL F
* Weight (Net): 950 g
* Insertion Loss: Less than 0.1db
* Testing Function: FWD / REF POWER, REP, SWR
* Input / Output Impedance: 50 OHM
* Dimensions (L/T/D): 90mm x 85mm x135mm

Packing List :
* NISSEI RS-502 SWR & Watt Meter
*Operating Manual
* 13.8 V DC DC cable

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