diff --git a/gamutrf/grscan.py b/gamutrf/grscan.py
index a159b814..5bd4555d 100644
--- a/gamutrf/grscan.py
+++ b/gamutrf/grscan.py
@@ -61,7 +61,6 @@ def __init__(
         inference_port=10001,
         inference_text_color="",
         iq_inference_background=True,
-        iq_inference_len=1024,
         iq_inference_model_name="",
         iq_inference_model_server="",
         iq_inference_squelch_db=None,
@@ -321,7 +320,7 @@ def __init__(
             self.iq_inference_block = iqtlabs.iq_inference(
                 tag="rx_freq",
                 vlen=nfft,
-                n_vlen=int(iq_inference_len / nfft),
+                n_vlen=1,
                 sample_buffer=tune_step_fft,
                 min_peak_points=inference_min_db,
                 model_server=iq_inference_model_server,
diff --git a/gamutrf/scan.py b/gamutrf/scan.py
index b6739b69..c92615da 100644
--- a/gamutrf/scan.py
+++ b/gamutrf/scan.py
@@ -322,13 +322,6 @@ def argument_parser():
         default=1e-4,
         help="I/Q inference power squelch alpha",
     )
-    parser.add_argument(
-        "--iq_inference_len",
-        dest="iq_inference_len",
-        type=int,
-        default=1024,
-        help="number of samples to send for I/Q inference",
-    )
     parser.add_argument(
         "--iq_inference_model_name",
         dest="iq_inference_model_name",
@@ -526,9 +519,6 @@ def check_options(options):
     if options.samp_rate % options.nfft:
         print("NFFT should be a factor of sample rate")
 
-    if options.iq_inference_len % options.nfft:
-        return "NFFT should be a factor of I/Q inference length"
-
     if options.freq_end:
         if options.freq_start > options.freq_end:
             return "freq_start must be less than freq_end"