A more wide-ranging series on ham radio topics. The series and
this page are a work in progress.
3. HF Propagation Practicalities
4. Antennas, Tuners, and Analyzers
7. Bigger is Better (Antenna Version)
Transmission Lines - Part I
11. Transmission Lines - Part II
12. Filters and Impedance Matching
13. What Do You Do With Ham Radio?
14. The Self-Policing Aspect of Ham Radio
Control Loops and Radio Design 1
16. What's a Phase Locked Loop?
The New Kid - Direct Digital Synthesis
Is There a Transmit Equivalent of the RTL-SDR?
20. Modulation, Constellations and Bandwidth, Oh My!
21. A Little Getting Started on HF Information
22. Operating on HF
23. An Introduction to Power Supplies
Power Supplies part 2 - Linear Regulated Supplies
Addendum - The Supply is Finished
26. RF Noise and Coping With It
29. Directional Antennas Part 2
30. The Perennial Question of New Hams
31. Very Directional, Very High Gain Antennas
32. Phased Arrays, or A Dish Without A Dish
33. One Antenna To Rule Them All
34. One Antenna To Rule Them All – Part 2
35. One Antenna To Rule Them All – Part 3
36. What Are S-Parameters and Why Should I Care
37. Meet Mr. Smith Chart Part 1
37a. Smith Charts - An Addendum
38. Meet Mr. Smith Chart Part 2
Hello brother been following your blog in rss for a short time now and am just getting into your HAM stuff. Been licensed now for 5 or so years and really enjoy the hobby. My main focus is disaster comms especially since I'm on the Eastern Seaboard and hurricanes are just a part of life.. You have some great content and I will be referring people here from now on. IDK if you have messed with JS8CALL at all but it is an interesting program and works wellReplyDelete
I have been out of the HF business for a very long time. I have been mostly on 2 meters, for the past 15-20 years. But that is about to change. I bought an Icom 735 yesterday from an estate sale, for 100$. I could not check it out, since they didn't have a power cord but I have ordered one, and I have a 13.8 volt power supply that has been around for awhile, that I picked up for 10$ from Craigslist a year or two ago.
I have already downloaded the owners manual and the electronics repair manual for this rig, and am planning on going through it once I get my power cord. At the price, I am expecting to probably have to put new tuning caps in and do an alignment. For the price, I have no problem with doing some repairs to get it back running.
This was one of the better rigs that was out, when I was a young man. The same estate sale had an Heathkit HW 7, for sale, for 100$. I had one when I first started the hobby, and I think that I paid less than 50$ for it, yet now, the normal cost of one is 200$. Everything has gone crazy, as far as prices go. This estate sale, whom ever the man was, had a lot of things, from ham radio related to tools, wood, wire, rope, ladders, they even had a few hundred rounds of 7.62 x 51 military issued ammo.
I had an Icom 735 back in the 1990s. Very good rig.Delete
I checked the groups.io site to see if there was a group for it, and there seems to be one, although not very active. Kind of what I'd expect for a radio that old.
Mine never did anything wrong, never failed, never needed anything, so I can't offer much insight to getting it running. I think this was one of the first radios with a battery on the main board that kept some memory alive, but I don't remember details about it. You might look into that and see if you should replace the battery, and if that's a problem getting one restored.
Thanks for the help. I expected that I would have to do some restoration. At the least, some cleaning up and checking out the components to make sure that none of them have broken down. I am still trying to figure out the right antenna for the rig. Ideally, I would like to go with a multi band vertical, but many of them tend to be expensive. I might go with some form of a multi band dipole, that I used to use, when just using CW. I almost forgot the fun of HF.Delete
Looking forward to getting back on the air, just to see what I have missed. Be well, and have a good week.