HTX-202 powersave mode strangeness?
dgs...@vnet.ibm.com
is not exhibited by the 404. I tried a new 202 in a local RS store
and was unable to duplicate the behavior on that one. Didn't spend
a lot of time at it though... RS saleman (for what its worth) says
"it shouldn't do that, send it in for service..."
In <371hg0$o...@Kontron.De>, t...@kontron.de (Thomas de Lellis) writes:
>Anyone out there with an HTX-202 experiencing the following when
>placing their HT in powersave mode?
>
>Set the powersave mode to 1 - 2 from the default (1 -16) in
>the setup menu. Then tune to an unused frequency, set the
>squelsh tight, and enable powersave mode.
>
>Wait several seconds, and now try to use the tuning knob
>to change frequency or memory channel.
>
>You can't! (or at least, I can't.) I am only able to change
>frequency using the up/down buttons on the keypad. If the
>squelsh is opened by a signal or pressing the monitor button
>the VFO knob functions for several seconds after no singal
>is heard and then knob locks up again...
Thomas de Lellis
Anyone out there with an HTX-202 experiencing the following when
placing their HT in powersave mode?
Set the powersave mode to 1 - 2 from the default (1 -16) in
the setup menu. Then tune to an unused frequency, set the
squelsh tight, and enable powersave mode.
Wait several seconds, and now try to use the tuning knob
to change frequency or memory channel.
You can't! (or at least, I can't.) I am only able to change
frequency using the up/down buttons on the keypad. If the
squelsh is opened by a signal or pressing the monitor button
the VFO knob functions for several seconds after no singal
is heard and then knob locks up again...
Interesting is that the HTX-404 doesn't exhibit this
behaviour.
By the way, anyone know where the FM deviation adjustment is
in the HTX-202 or HTX-404?
Otherwise, been very happy with both HT's. Too bad though they didn't
implement
1750Hz tone burst as well as CTCSS though. Nothing that a DM69,- tone burst
mike can't handle though...
73s
Tom de Lellis
DL5MGZ / KN6EI (ex: DH9MBN / KC6WYY)
Steven M. Palm
>
>Anyone out there with an HTX-202 experiencing the following when
>placing their HT in powersave mode?
.
.
>Wait several seconds, and now try to use the tuning knob
>to change frequency or memory channel.
I found that mine did that as well, but if I changed the delay time
for the power save mode, it seemed to work okay without having to
disable it completely. I cannot remember which setting it was at
when I had the problem, but I think it was 1/2 second. Now I have
it back to 1/16 where it was when shipped.
Just some input.
Don Montgomery
> Anyone out there with an HTX-202 experiencing the following when
> placing their HT in powersave mode?
I posted this early in 1993 when the HTX202 first hit the market. R/S
may have fixed some of the bugs by now. Anyway:
---//---
The HTX202 is proving to be a pretty popular radio. It well should be,
it was selling at a super price during Radio Shack's sale of a week or
so ago.
However, as others mentioned previously on the net, I found a few undoc-
umented "features" in my HTX202 and others I've tried out. Here's my find-
ings on my particular unit; it's pretty subjective, so take it with a
grain of salt if you want.
1. There is indeed an in-band receive spur at 146.76. This signal is
radiated out the transceiver's case and into the rubber duck antenna.
It reads about 3-5 on the LCD S meter. You won't hear it with an ex-
ternal antenna removed any distance from the radio itself. Fishing
around with an antenna probe shows most of the radiation coming from
the keypad. I haven't figured out all the "tweets" associated with
this radio, but at first glance this spur appears to be caused by the
41st harmonic of the uP clock (operating at 3.579545 Mhz). Changing
the crystal frequency would move the spur to a less-popular channel,
but might throw off some of the radio's timing and affect DTMF/CTCSS
tone accuracy providing these are generated by the CPU. BTW, if you
hold the HTX202 close to the antenna of a communications receiver tuned
to 3.58 Mhz, you can hear the color-burst crystal radiation. You can
also hear the 146.76 spur on another 2-meter radio held close to the
HTX202.
2. The second weirdness involves the power save option. With the radio's
duty cycle (PS in the configuration menu) set at something less than 1-8,
and SAVE feature enabled, the RPG (tuning knob) hangs up when manually
selecting memory channels. The up/down buttons work normally, as does
the 1-16 duty cycle.
3. Another interesting glitch is the way the radio behaves when the bat-
tery fails. When the "batt" icon appears on the LCD screen, you will
not have much time left for transmission. Further transmitting will
blank out the LCD display screen, but the radio keeps transmitting at
the last selected frequency, although with some very hairy-sounding
sidebands. Releasing the PTT switch does nothing - the radio keeps
transmitting until the power is switched off. You also can't get any
mike audio thru the transceiver at this point.
4. I find the DTMF REPLY feature unusable with transceivers having long
DTMF/PTT transmit hangtimes. By the time the inquiring transceiver has
gone back to receive, the HTX202 has already sent out the DTMF # reply.
I think the HTX202 should really respond after some time delay or upon
local squelch closure to make sure the inquiring transceiver has recover-
ed back to receive mode.
The receiver is pretty sensitive. I checked mine at about 0.18uV/20 db
quieting. The first LO leakage out the antenna port is about -57dbm. As
mentioned previously, I also found a lot of the leakage coming from the
keypad area. BTW, the first LO radiation falls from 122.6 to 126.6 Mhz,
so I'd be pretty careful using this radio near operating aircraft.
Someone mentioned transmitter hang-on when tone squelch is used. My unit
stops sending PL tone as soon as the PTT is released and the transmitter
drops off about 100 milliseconds later. The unit doesn't send out any type
of "reverse burst".
Anyway, great radio, great price. Anyone know when the HTX202A is coming out?
Don Montgomery, K6LTS
do...@sr.hp.com