Three days in Lassen - Part 1, Brokeoff mountain 2020-07-03

Three days in Lassen - Part 1, Brokeoff mountain 2020-07-03

Lassen volcanic is one of my favorite US national parks. Five hour drive from San Francisco in north-easterly direction is not something lot of out of state tourists do. Yosemite and Sequoia national parks usually receive more traffic and are a bit too crowded during the peak season to my taste. The crowds are so significant that during certain stages of 2020 Coronavirus epidemic Yosemite park was closed for all but winners of Half Dome / overnight permits to avoid virus spread.

My initial plan for Independence day weekend was indeed to try winning a day use Half Dome permit. I’ve been there couple of years ago and want to repeat the feat, with a radio rig in my backpack this time. I suspect I wasn’t the only person who had a similar plan though and the lottery didn’t work out for me.

Black Mountain SOTA activation 2020-06-27 (Field Day)

Black Mountain SOTA activation 2020-06-27 (Field Day)

Continuing with my SOTA exploits. This time my target was W6/NC-150, Black Mountain located in Rancho San Antonio county park near Cupertino, CA. The summit is accessible via 11.2 mile out and back PG&E trail. Elevation gain is 3146 feet. Beware of poison oak, ticks, rattlesnakes, mountain lions and feral software engineers wandering into the park from Silicon Valley.

I have already tried to activate Black Mountain few months ago but was not able to copy call signs fast enough. Was fairly optimistic about the activation this time as I expected quite a few folks to participate in the Field Day contest. Also I can copy a tad better now.

First SOTA activation: Mt. Saint Helena 2020-06-20

First SOTA activation: Mt. Saint Helena 2020-06-20

Welcome back folks. One thing I never mentioned before is my master’s degree in Radioengineering. Weirdly enough despite being fascinated with wireless communications from the very early age I didn’t get into amateur radio until recently. Just always thought passing exams is not quite worth it. Plus while learning to copy Morse code had been always on the list of things to do before pegging out I just ‘never had time for it’.

About a year ago, I was looking for a new walkie-talkie to take on hiking trips so our group had some means of communicating in no cell phone reception areas. While researching available options I realized it makes sense to get licensed to get access to amateur radio frequencies.

GoogleWiFi + Pi-hole and NordVPN

GoogleWiFi + Pi-hole and NordVPN

Hello friends, as I promised in my previous post I’m going to tell you about configuring GoogleWiFi router with a Raspberry Pi server acting as DHCP and DNS server / VPN gateway. While part related to NordVPN is vendor specific I feel it would not be too hard to use similar setup with any VPN provider. Feel free to skip VPN related part.

I’m not sponsored by NordVPN, instructions provided as is and as any information from the Internet should be used carefully.

Debugging DHCP using tcpdump

Debugging DHCP using tcpdump

With lot of time spent home during stay-at-home order active in my area I decided it’s a time to overhaul my home network setup.

I think I’ll get into details in the following posts but at this time I want to tell about an issue with DHCP leases I was able to track down using tcpdump.