Recent content by DTB Radio

I didn't see any brand as such, just a few cryptic alpha-numeric characters that I didn't think to photograph. Pretty sure they just spelled "shite".

Partly agree with you on that; however, I have encountered factory systems that actually worked quite well for a few years before needing to be replaced. Some, of course, are utterly useless and should be replaced immediately. In some cases, the over-all system is fine for years with proper...

I 2nd the NMO idea. I keep those items in stock for that very reason.

I had a customer this morning with a Freightliner Cascadia tractor that turned out to have a bad antenna. This system was an external, single-antenna setup. Most customers keep their old antennas so that when they leave the tractor/company they can re-install it and keep their good one. This...

Loving the new Richard II for the most part, but while changed values in the tech menu seem to be saving (and seem to be having the desired effect while in the menu, as in modulation level increasing), after the radio is powered down and powered back up, the effect is not applied in normal...

I confirmed that the last item on that was a result of a database that hasn't been updated from as far back in some cases as 2008. However, the correct number is not far off, lol. I was able to work out a compromise on cost with DAS to avoid the hassle of a return, so semi-happy ending here.

Yeah...

Pipe this invoice and tell me what you think. Keep in mind that some truck stop prices are actually cheaper for the exact same product than what DAS charged me for some of this. In particular, note my cost (unit cost column) and the suggested retail price (retail column) of the last item. I...

I've not had a single problem with their product until I found the broken antenna in their shipping carton. Maybe I've been lucky, lol!

Update from Tram-Browning. In an email dated today, they say that they changed their accounts to pre-pay before shipping. Pretty much guarantees I won't be restocking any Tram-Browning products, at least not directly from them.

Has anyone else started having issues with Tram-Browning's support and general attitude towards product and customer support? I'm not ready to post any details yet as I'm hoping the situation can be resolved, but I'm very close to discontinuing all Tram-Browning products as a result of what's...

As mentioned, you will need to check the bias level. There is a POT near the final for this purpose. Also as mentioned, different makers/batches of IRF520's can have different bias requirements. Short answer is usually yes you can do a drop-in replacement, but be aware its not 100% of the time...

Newer Uniden/Bearcats do seem to be using MOSFET's as standard, at least in the larger models. I've not looked that closely at their smaller models.

Here are a few more photos showing more detail. Still no closer to knowing what it is, lol! the bit in the middle looks like its holding an old razor blade or other sharp-edged item. I haven't tried to take that apart to see what it is yet.

I'm sure I'm not the first to do this, but here's an idea for reusing those old SO-239-style antenna mounting studs. If the main body of the SO239 section is in decent shape, use a punch/vice or other method to drive out the "guts". Locate a retainer nut from an old CB or HAM radio's SO239...