PDW, FLEX, SPOK and Flex 2 Way

[MrBungle]

I've always decoded with PDW, it's super entertaining for me because not only do I have a wicked filter list, but SMS is also sent through this. The reason SMS is sent is because SPOK has that as an option in their network. So I currently sit on either 929.6625 for National coverage or 929.6125 for my state coverage. Each are different channels.

So my main question is I know SPOK has a two way messaging option. I've been up and down the web looking for frequencies for the two-way, and I've been all over looking for more information period. SPOK has plenty of information on their site regarding the one way, even posting frequencies on their website with coverage maps.

Does anyone have any insight on the two-way system?

 

[kf8yk]

The two way ReFLEX systems typically use 901-902 MHz for the return path, paired with 930-931 or 940-941 MHz for the downlink. Sometimes channels from the 929 or 931 MHz one way paging pool are used for the downlink.

Here's SPOK's nationwide ReFLEX license on the 930.525/901.78125 MHz pair: ULS License - PCS Narrowband License - WPRS385 - Spok, Inc. Note the downlink is 50 kHz wide, but the uplink is only 12.5 kHz wide.

 

[MrBungle]

Hey thanks for that information, I'll use it and see what I can find.