I shared some thoughts with kv5r on his website about this. He gave me some interesting food for thought and some corrections.Continue reading “Additional Thoughts On IC-7100 RF Tap”
I just can’t leave well enough alone. What started out as tweaking the resistor value ended in building a small board to control the LNA to compensate for the radio’s missing voltage on the accessory pin; as well as to turn the LNA off when the radio is transmitting. It’s really stupid simple too; basically a transistor AND gate.Continue reading “Controlling the LNA’s Power”
When I decided to buy the IC-7100 I had one major modification in mind; some kind of panadapter tap. I won’t lie about missing the waterfall on the IC-7300, I do in fact miss it. But I also have an original SDRPlay laying about, which has an even nicer waterfall. There were two ways of accomplishing this; and I basically modified one way to invent a third.
I also wanted to build something so I could start running all my RTTY using actual FSK. I managed to get both of these accomplished in the same day and now I don’t know what to do with myself except write about it.Continue reading “Mortty & RF Tapping The IC-7100”
I managed to beam a packet up to the ISS and had it beamed back down. I don’t normally link to other sites as part of my content; but I already did an article on this for my radio club, so I’m taking the easy way out and linking to it.
I’ve been spending money on radio stuff. Holy shit have I been spending money. I think I’ve spent upwards of $1000 in just the last month. I keep finding things to upgrade. I was out of work for 2 months, but the vacation money and government check offset most of it; I went back to work in better short-term shape than I was.
Then I started blowing money on radio stuff again.Continue reading “Just How Much Is This Foxhunt Going To Cost Me?”
So as you may or may not have gathered from this page; I am a bit of a nut about the digital mode hotspots. Some don’t like the idea and saying internet isn’t ham radio, but I look at it this way; the internet is just plugging me up to multiple repeaters. Am I still actually using my license? Yes. I need it to send the RF From the HT to the hotspot; and that means we’re all nice and legal for coming out of whatever repeaters are linked to a group. I do look at this hobby from multiple angles; HF is fun for the hard-core experimentation…things like DMR and D-Star are fun for less-stressful ragchewing. Plus it gets in a hefty dose of networking and IT infrastructure.
With that being said..I’m gonna tell a story about a particular lousy DMR radio I managed to salvage.
Due to the downfall of society and shit hitting the fan; I have been forced to operate Field Day as a Class D from home rather than going out and enjoying it with friends. I focused my anger in to getting a station setup:
The good ol’ IC-725 I promised I’d never get rid of. After having to get rid of the 7300 it was a good decision as it still left me a radio. The radio sucks..it’s RX section is a total embarassment and it’s going to make FD so much more difficult since SSB stations 16khz each side of you bleed through.
This is an RF Speech processor…it’s just proving the screaming DX sound that boosts my average talk power.
$10 PC Headset:
I modified this PC headset to plug in to the TenTec; a second cable from the rigs headphone jack provides the audio. It’s cheap, but effective.
Clipper Foot Switch:
If I can’t make QSOs with it, I can bludgeon someone with it. A stupidly over-engineered footswitch…it’s cast iron body and heavy duty construction means it’ll put up with even the angriest of QSOs while fighing a pileup.
“Generic Sandwich Cookie” Interface:
This is the digital interface I built 5 years ago. Sound card, isolation transformers, opto isolator.
Simple Level Converter for CI-V
A simple 7404 based level converter that allows me to take an Arduino Uno board (sans ATM328) and do CAT/CI-V.
Software wise I’m running N1MM logging integrated with MMTTY, 2Tone, and WJST-X. This should allow me to oprerate both phone, RTTY, and FT8/4 during the contest.
I’m going to try and work all 24 hours. It was a tradition that I stay up and work the night shift for FD; I broke that last year along with everything else. But running solo as a Class D; well, it’s all on me.
Yes..this was a quick post; but FD starts in 30 minutes. I’m largely already set. Everything is wired; everything is configured. It’s hot…man is it hot. 90 degrees with humidity to match in an unairconditioned shack. I have a fan blowing on my legs and up my body…people are going to have to deal with the background noise. One person I did a QSO with already said they couldn’t hear it.
Oh well. Good luck everyone.
I’ve been a fan of screwing around with the MMDVM hotspots ever since I picked up a ZumSPOT with my D74. Though I remember them being around when I got in to ham in 2015; they’ve gotten a lot cheaper and a lot more universal.
Anyway; I upgraded one of my hotspots and did a neat little trick with my now spare MMDVM HAT.Continue reading “Upgrading Hotspot & MMDVM USB Tricks”
A few months ago I hacked together a little shell script on a hotspot to do some funky beacon action directly to APRS-IS. Nothing big…just pulls GPS data from a device and comments with your connected groups. It’s currently in “pre-release” stage as in I haven’t made a full tarball distribution with documentation and such.
When it comes to DStar radios, ICom is king. It makes sense considering until recently ICom was the only one to make DStar radios. That changed when Kenwood came out with the TH-D74. So why would I go with the DStar newcomer as opposed to the DStar veteran? I didn’t do it just to be different, did I?