I recently won a bargain Ebay auction for 4 x Hytera SM18N4-Ex hoping they would work with my PD785 handhelds. Unfortunately, I was wrong but the good news is that I did manage to figure out how to make them work!
There’s 2 ways to do it, one is the no damage approach, the other involves a destructive modification
but could be reversible. Continue reading “Hytera SM18N4-Ex hack!”
I’m a keen user of ALE on the HF bands and recently purchased an Icom IC-7200 to use as a dedicated ALE station. I picked the IC-7200 as I liked the form factor, the fact that is is a dedicated HF radio and that it has a built in USB interface. The only problem with using the IC-7200 for ALE use is that the TX bandpass filters are switched in and out using relays as the radio scans through the bands. This causes an annoying “click, click, click” sound when the radio is changing bands and, when scanning at 5 frequencies per second, can put considerable wear on the relays. Luckily, there is a fix for this problem…
Continue reading “Icom IC-7200 QRS mod”