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Diamond Original SX-400 SX400 SWR Power Meter

Free shipping on orders over $29.99

$154.10

$ 71 .99 $71.99

In Stock

About this item

  • Diamond SX400 Power Meters


The 13.8 V power supply is for lighting the meter. Not required for normal measurement.


Richard Degen
2025-08-11 16:37:35
very good price,,shipping time was excessive
Vickie
2025-08-07 14:12:17
This is a smooth working SWR / Power meter. It has a large viewing area and measures both forward and reverse power. I have no regrets buying it.
Russell Graves
2025-07-24 10:54:13
Meter needle sticks. I used 5 watts and needle went slowly to 3, 3.5, then to 4. I tapped lightly on case and it went closer to 5. Let go, of the microphone and it never went back to zero. Had to tap meter case to get it back down. I got close to zero but never zero. I tried 10-20 watt read with Kenwood TM-V71a and it did same. I tried 200 watt range on Yaesu FT-2980 and saw 55 watts and tapping got to maybe 60 to 65 ish Watts. Goofy readings. I thought Diamond was a good brand like Diawa.
Alex
2025-06-28 13:36:57
Multi-function, small and I mean small footprint, mostly used for SWR while messing with antennas and checking amplifier output.
Eric B
2025-05-15 14:17:37
Well built solid meter. It reads slightly different than my trusted Yaesu YS-500, that was only reason for 4 out of 5 on accuracy, then again, Yaesu could be off.
scott g.
2025-04-03 17:00:04
Great product
n0nebutme
2025-03-20 19:41:25
I was alarmed when I saw the 45% over priced item charged, then I also found item malfunctioning and would not calibrate to properly zero on SWR measurements both forward and reflected calibration, PEP and average power readings were way-off, would not adjust and produced a lot of artifacts while connected to tests in-line transmission at UHF settings in 490.700 frequencies. defective item, sending back returning despite being charged back for return handling ???? would not recomend, took forever to arrive!
patricia lunt
2025-03-02 12:30:41
Husband really likes it
Client d'
2025-02-09 11:45:07
Produit parfait. Très satisfait.
sabamiso6060
2025-01-25 15:48:26
HFは内臓のメーターで監視出来てるがVUは上げっぱなしだったので購入しました。製品はもちろん信頼できるし操作も全く問題ありません。無線機の保護のためにもアンテナの位置を変えたりアンテナ自体を変えた時はまず、チェックに必要です。
芦澤和巳
2025-01-04 11:47:50
使ってみて よかったです
COPPEE Cecile
2024-12-23 12:01:02
Produit conforme à la description ++++++
ノガミ ヤスヨシ
2024-12-11 10:34:45
バックライトが直ぐに切れましたが良いかな