diff --git a/doc/lorapipe.1.md b/doc/lorapipe.1.md
index 403af11..7c9d3a0 100644
--- a/doc/lorapipe.1.md
+++ b/doc/lorapipe.1.md
@@ -358,6 +358,12 @@ be able to ping and talk back and forth between them.  Standard
 commands will work at this stage.  You may wish to adjust the packet
 size in /etc/axports up from 70.
 
+To bring down the link, Ctrl-C the socat sessions and run `killall kissattach`.
+
+For more information, see:
+
+- [The Linux AX.25 HOWTO](http://www.tldp.org/HOWTO/AX25-HOWTO/)
+
 # INSTALLATION
 
 **lorapipe** is a Rust program and can be built by running **`cargo
diff --git a/src/lorastik.rs b/src/lorastik.rs
index b5d3f5f..e9dcdd5 100644
--- a/src/lorastik.rs
+++ b/src/lorastik.rs
@@ -101,7 +101,7 @@ impl LoraStik {
     /// parameters after a read.
     pub fn new(ser: LoraSer, readqual: bool, txwait: u64, eotwait: u64) -> (LoraStik, crossbeam_channel::Receiver<ReceivedFrames>) {
         let (readerlinestx, readerlinesrx) = crossbeam_channel::unbounded();
-        let (txblockstx, txblocksrx) = crossbeam_channel::unbounded();
+        let (txblockstx, txblocksrx) = crossbeam_channel::bounded(3);
         let (readeroutput, readeroutputreader) = crossbeam_channel::unbounded();
 
         let ser2 = ser.clone();
diff --git a/src/pipe.rs b/src/pipe.rs
index 2b2c286..8bf3ad1 100644
--- a/src/pipe.rs
+++ b/src/pipe.rs
@@ -25,7 +25,7 @@ pub fn stdintolora(ls: &mut LoraStik, maxframesize: usize) -> io::Result<()> {
     let stdin = io::stdin();
     let mut br = io::BufReader::new(stdin);
 
-    let mut buf = vec![0u8; 8192];
+    let mut buf = vec![0u8; 4096];
 
     loop {
         let res = br.read(&mut buf)?;