stare mode initial frequency

IQTLabs · Aug 4, 2024 · 83b10f4 · 83b10f4
1 parent cdb7a75
commit 83b10f4
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/docker/Dockerfile.base b/docker/Dockerfile.base
@@ -14,7 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   libvulkan-dev \
   pybind11-dev
 WORKDIR /root
-RUN git clone https://github.com/iqtlabs/gr-iqtlabs -b 1.0.114
+RUN git clone https://github.com/iqtlabs/gr-iqtlabs -b 1.0.115
 COPY --from=iqtlabs/gamutrf-vkfft:latest /root /root/gr-iqtlabs
 WORKDIR /root/gr-iqtlabs/build
 COPY --from=iqtlabs/gamutrf-sigmf:latest /usr/local /usr/local

diff --git a/gamutrf/grscan.py b/gamutrf/grscan.py
@@ -105,10 +105,12 @@ def __init__(
             description = description.strip('"')
         tune_step_hz = int(samp_rate * tuneoverlap)
         stare = False
+        initial_freq = freq_start
 
         if freq_end == 0:
             stare = True
             freq_end = freq_start + (tune_step_hz - 1)
+            initial_freq += int((freq_end - freq_start) / 2)
             logging.info(
                 f"using stare mode, scan from {freq_start/1e6}MHz to {freq_end/1e6}MHz"
             )
@@ -167,7 +169,7 @@ def __init__(
             nfft,
             tune_step_fft,
             agc=False,
-            center_freq=freq_start,
+            center_freq=initial_freq,
             sdrargs=sdrargs,
             dc_ettus_auto_offset=dc_ettus_auto_offset,
         )