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G4IJL > TECH 19.08.06 18:46l 28 Lines 942 Bytes #999 (0) @ WW
BID : 570092G4IJL
Read: DL1RX DL1LCA GUEST OE7FMI
Subj: Cheep 50 ohm dummy load
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<TU5EX<DL1ZAV<CX2SA<GB7YFS
Sent: 060819/1429Z @:GB7YFS.#26.GBR.EU #:58624 [Bourne] $:570092G4IJL
From: G4IJL@GB7YFS.#26.GBR.EU
To : TECH@WW
If you would like a very cheap 50 ohm dummy load that will handle a couple
of watts read on.
When a local company was throwing out some computer gear, I found some
line terminations. These line terminations for coaxial cable Ethernet were
interestingly 50 ohms. Having measured the forward/reflected power with
the aid of a Bird Throughline, I found them excellent dummy loads. I
tested with 6, 2, and 70 cms.
I found also a transistor heat-sink could be pushed onto the case to help
dissipate the heat build up.
So how much power can these midget dummy loads handle? I have only tested
them with three watts. They could take a little more. However my FT-X90 R
Mk 2s can only give three watts (X= 6, 2, or 7).
The best bit is the dummy load is free, nice one for you QRP people.
73 - Paul, G4IJL @ GB7YFS.ORG.UK
Message timed: 15:21 on 2006-Aug-19
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