Replying to
@nev
I see your owl and raise you one owl.
(December 2022 , next door neighbour's TV antenna)
Remote
vk3kri
@vk3kri@mastodon.radio
mastodon 4.7.350 years of building things from other peoples junk.
Ham for too long !(45 years)
Yes I have reground my own crystals. But these days I'd use a DDS chip.
#AM #audio #timenuts
I never want to analyse another #LWM2M trace again!
73 Followers
73 Following
12 Posts
Joined November 05, 2022
Replying to
@k3ym0@infosec.exchange
The first time I came across DNS tunneling in the wild was traffic monitoring hardware sold as a security device.. Turns out it was trying to do DNS tunneling to check for a valid licence.. My advice was to dump it was not taken.
Theres always one weirdo somewhere tailing their DNS logs!
Replying to
@bloor@bloor.tw
Its not a piece of mosaic pin that's fallen out of one of your kitchen knives is it?
Not much from today's hamfest, but I always thought the Heuer LM11 level meter was neat back when I used them at work, back in the '90s. The pair mainly used for level testing on voice circuits. Both of them still work, so there's a couple of more items for my collection of obsolete Aussie test equipment.
Replying to
@Quantensalat@scicomm.xyz
IN "Linear Amplifiers for Mobile Operations" https://www.communication-concepts.com/content/AN762/AN762_Application_Note.pdf
Granberg says that if the DC feed is done through the center tap of the '1 turn' transformer, rather than the bifilar feed , the IMD and power output is unaffected , but 2nd harmonic suppression may be reduced by 10 dB. Given he was doing this in the Motorola lab I figure he knew what he was doing , but I still don't see how it works.
Replying to
@Quantensalat@scicomm.xyz @upofadown@mstdn.ca
I have always maintained that this arrangment is two seperate transformers, as you have modeled in spice.
Replying to
@oz1lqo@techhub.social
hmm - How about a long term plot of the tidal effects from the sun and the moon!
@VE7WYC@mstdn.ca
Waiting at the traffic lights for a plane to take off across the road was a rather surreal experience.
Ooohh ! TOKEN RING!
Replying to
@DD3AH@social.darc.de @Hoonse@chaos.social
Add one of these guys for tuning : https://www.aliexpress.com/item/1005005072238869.html
A 400 position one tunes pretty nice. 2 x ball bearings are almost too smooth. I traced what I thought was some backlash to an unbalanced knob responding to gravity.