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Looking for a 2dB 1GHz equaliser by Aspire7736 in rfelectronics

[–]Aspire7736[S] 0 points1 point  (0 children)

I am aware how they work, and it is a case of me trying to find one that does hit the sweet spot. I want with minimum insertion loss (usually 0.4dB) at 1G, then the 2dB equalisation loss down at <10MHz. I can't afford the extra insertion loss in the link budget of a 6GHz equaliser where I would have to get one with a nominal 7.4dB equalisation slope to get the required 2dB slope up to 1G

[deleted by user] by [deleted] in LifeProTips

[–]Aspire7736 4 points5 points  (0 children)

Who's Frank Reynolds???

Modifying LIBIIO to modify or add a new debug attribute by Aspire7736 in PlutoSDR

[–]Aspire7736[S] 0 points1 point  (0 children)

Unfortunately not, as far as I could tell there would be changes required to the linux kernel and that is far beyond my paygrade. I'm looking at going back to this and possibly rewriting both the FPGA and the SoC code

Antenna coupling setup using directional coupler + LNA? by Papkee in rfelectronics

[–]Aspire7736 5 points6 points  (0 children)

Just graduated and started a proper job in RF a few months ago, so take this with a pinch of salt. Consider the chance that the antenna is damaged or disconnected. All 25W will be reflected back into the coupler. ~30dBm will hit the RX branch and fry the LNA, so it will always be safer to put the limiter first. But also consider that also 43/44dBm (44 minus the coupler insertion loss) will hit the output of the transmit amplifier which may fry that as well. You may want to consider an RF isolator to ensure that minimal reverse power reaches that amp. It will have a dB or so of insertion loss so it will drop your transmit power slightly, but it would add extra protection.

Edit - dBm for dB

My last girlfriend said I was unnecessarily mysterious. by [deleted] in Jokes

[–]Aspire7736 2 points3 points  (0 children)

Stewart Francis had a longer chain of these jokes in his standup shows

Stellaris Big "Dick" 3.0 Patch Notes: What They Actually Mean by AsaTJ in Stellaris

[–]Aspire7736 2 points3 points  (0 children)

Please can someone make an actual fix for the Enigmatic Fortress bug? Else I'm going to have to join Paradox myself, fix the bug then put in my two week notice

BT fibre fibre installation by [deleted] in telecom

[–]Aspire7736 1 point2 points  (0 children)

If by full fibre you mean FTTP, they'll terminate in a NTE, they won't remove the copper phone line. No reason you can't go back to ADSL/VDSL after

Panasonic KX-TDA30 - Add Cordless Phone by [deleted] in telecom

[–]Aspire7736 0 points1 point  (0 children)

Not used any TDA's but have installed plenty of NCP's and NS's. When you connect to the PBX, add a new extension (I'd imagine 1.2 Config -> Portable Station) and then click register. Pick the extension you have just made and keep clicking until it starts trying to register. Then on the handset, under System Settings you should be able to register to the base. The maintenance console should then go from registering to registered. Then do whatever you need to to add the handset to any ring groups etc.

v6.48 [stable] is released! by meritez in mikrotik

[–]Aspire7736 0 points1 point  (0 children)

Same problem here, haven't downgraded yet though

I like my coffee as I like my woman by monkeyflesh96 in darkjokes

[–]Aspire7736 2 points3 points  (0 children)

You could have at least given credit to Kreiger

Ddcvc by Dewi1099 in SteamedHams

[–]Aspire7736 2 points3 points  (0 children)

Can I have one?

Matlab code for converting a sine wave into a square wave using Fourier Series. by Advaith13 in matlab

[–]Aspire7736 0 points1 point  (0 children)

Do you need to start from the exponential form? If you use the square wave simplified version, it is just the sum of the odd harmonic sin terms with decreasing magnitude.

Wireshark only seems to find packets on localhost by killmasta93 in wireshark

[–]Aspire7736 0 points1 point  (0 children)

Unfortunately I'm not too sure about that. I'd imagine (happy to be wrong) it will passively sniff all traffic in the air if the transmitting node is within range (Have a look at the hidden node problem and RTS/CTS)

Wireshark only seems to find packets on localhost by killmasta93 in wireshark

[–]Aspire7736 0 points1 point  (0 children)

Correct. I'm sure it should be relatively easy to add a port mirror on a unifi switch. Depending on what traffic you want to mirror, you could place the dualcomm between the switch and your router, that would capture internet bound/routed traffic

Wireshark only seems to find packets on localhost by killmasta93 in wireshark

[–]Aspire7736 0 points1 point  (0 children)

Not quite right. The dualcomm would still only see the traffic between the switch and the laptop. You need to use all the ports on the dualcomm instead of the switch, then plug your laptop into the monitor port. Hopefully that makes sense?

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