Should contest rules allow and act upon 599K QRM reports?

Saturday, 20 December 2008

SDMO Booster 1000 petrol suitcase generator

I took advantage of a Christmas offer from Screwfix, £100 off if you spend over £450. The generator was listed at £460 so got it for £360, still a lot of money but I'm hoping it will be perfect for portable operations in the summer. It was delivered the next day (great service) and came with oil, spark plug removal tool and battery charging leads.
I topped up the oil, filled it with fuel and started her up. The noise from it is too loud to have it next to the operating position, but walking about 10m away from it dropped the noise to a level that couldn't be heard through a mic. I recon I could run it at the house without bothering my immediate neighbours.
I plugged a power supply into the mains socket on the side of the generator and connected a rig and dummy load. I scanned 1.8 to 30MHz and found no birdies within the amateur bands, the receiver sounded clean and clear.
The transceiver pulls about 20A at 12V at maximum power output of 100W. With the generator on it's 'turtle' (slow rev) position an indicator lamp lights if you exceed it's current capabilities to warn you to switch it to 'hare' (fast rev) position. Whilst looking at this warning lamp I slowly increased the power output of the transceiver whilst transmiting. I could get the full 100W from the rig without having to change up to the louder, faster rev position.
I have a 110A/H leisure battery and I had thought that if the generator couldn't handle the rig on it own, that I would connect the generator and the battery in parallel with the rig. Hopefully the battery will smooth the generated charging voltage sufficiently to allow this configuration. This will be my next test when I get time.

1 comment:

mitchdcba said...

Very good post.The information you have shared can be useful for all those who use any kind of 12v electronic device. please share more info like that.
suitcase generator